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What is the potential energy of the 2 kg ball that is sitting on top of the 40 meter
building?
0803
784
O80 N
784 N

Answers

Answer 1

Answer: 784 J

Explanation:

Potential energy is expressed in:

PE= mgh

= 2 kg x 9.8 m/s² x 40 m

= 784 J


Related Questions

what might be happening since 1880 for average global temperatures to increase

Answers

Answer:

The average global temperatures has increased since 1880 due to the emission of toxic gases in the atmosphere.

Explanation:

In average the global temperature of the earth has increased by 1 degree Celsius (2 degrees Fahrenheit). It includes the combined land and ocean's temperature.The main reason for this increase in global temperature is the emission of gases like carbon dioxide, CFC's and other greenhouse gases.Human activities, industrialization, modernization etc. are majorly responsible for this increment in temperature through the centuries.

Calculate the force of gravity between two planets with masses 5 x 1023 kg and 1 x 1022 kg when the distance
between them is 7 x 1016 m. Do not use scientific notation. Round to one decimal.

Answers

Answer:

68.1N

Explanation:

Check attachment

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A car moves along a horizontal road with constant velocity v0 = v0xi until it encounters a smooth inclined hill, which it climbs with constant velocity v1 = v1xi + v1yj as indicated in the figure. The period of time during which the car changes its velocity is Δt.

Answers

Answer:

a ave = ( v1x - v0x ) i/Δt  + v1y j/Δt

Explanation:

The acceleration of a body is the rate of change of the velocity of the  body

The correct equation and value for the average acceleration vector and magnitude of the acceleration of the car are as follows;

Part (a) The average acceleration vector is [tex]\overset \rightarrow a_{av} =\dfrac{(v_{1x} - v_{0x})}{\Delta t} }\mathbf{i} + \dfrac{v_{iy} }{\Delta t} \mathbf{j}[/tex]

Part (b) The magnitude of the cars acceleration is [tex]\mathbf{ 2.\overline{518} }[/tex] m/s²

The reason the above values are correct is as follows:

Question: The parts of the question that appears to be missing are;

Part (a); The vector expression for the average acceleration in the time periods

Part(b); Find the magnitude of the cars acceleration

Variables:

v₀ₓ = 31 m/s

v₁ₓ = 31 m/s

[tex]v_{1y}[/tex] = 6.8 m/s

Δt = 2.7 s

Solution:

Part (a) The average acceleration vector, [tex]\mathbf{\overset \rightarrow a_{av}}[/tex], is given as follows;

[tex]Average \ acceleration \ vector, \overset \rightarrow a_{av} = \mathbf{\dfrac{\overset \rightarrow v_2 - \overset \rightarrow v_1}{t_2 - t_1}} =\dfrac{\Delta \overset \rightarrow v}{\Delta t}[/tex]

The given parameters in the question;

v₀ = v₀ₓ i

v₁ = v₁ₓ i + [tex]v_{1y}[/tex]j

∴ v₁ - v₀ = v₁ₓ i + [tex]v_{1y}[/tex]j - v₀ₓ i

The average acceleration vector becomes;

[tex]\overset \rightarrow a_{av} = \mathbf{\dfrac{\overset \rightarrow v_1 - \overset \rightarrow v_0}{\Delta t}} =\dfrac{(v_{1x} - v_{0x})\mathbf{i} + v_{iy} \mathbf{j}}{\Delta t}[/tex]

Therefore;

[tex]\mathbf{The \ average \ acceleration \ vector} \overset \rightarrow a_{av} =\dfrac{(v_{1x} - v_{0x})}{\Delta t} }\mathbf{i} + \dfrac{v_{iy} }{\Delta t} \mathbf{j}[/tex]

Part (b) The magnitude of the car's acceleration is given by plugging values of the variables v₀ₓ, v₁ₓ, [tex]\mathbf{v_{1y}}[/tex], and Δt in the above equation as follows;

[tex]\overset \rightarrow a_{av} =\dfrac{(31 \, m/s - 31 \, m/s)\mathbf{i} + 6.8 \, m/s \mathbf{j}}{2.7 \, s} = 2.\overline{518} \ m/s^2 \ \mathbf{j}[/tex]

The magnitude of the cars acceleration, a = [tex]\sqrt {(2.\overline{518} \ m/s)^2 } = \mathbf{ 2.\overline{518} \ m/s^2}[/tex]

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Naomi has increased the pressure on a solution of liquid and gas in a closed container. This will _______
amount of gas held in her solution
the

Answers

Increase

Explanation:

Naomi increasing the pressure on a solution of liquid and gas in a closed container will increase the amount of gas held in her solution.

Increase in pressure increases the solubility of gases in a solution.

Originally, the gases have their particles far apart from one another They move randomly all about without staying in the solution. Increasing their pressure brings the gases into more frequent collision with the solution. This will lead to an increase in amount of gas held in a solution.

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Final answer:

Increasing the pressure on a solution of liquid and gas in a closed container will increase the amount of gas held in the solution.

Explanation:

Increasing the pressure on a solution of liquid and gas in a closed container will increase the amount of gas held in the solution. This is because an increase in pressure will result in more collisions between gas particles and the container walls, leading to a greater force being exerted on the walls. As a result, the pressure inside the container increases.

what would the velocity of a bullet that strikes a tin can 350 meters away in 0.25 seconds

Answers

Answer:

87.5 m/s

Explanation:

350m * 0.25s = 87.5 m/s

4. Elements that lie along the stair step line of the periodic table are
a. metals
c. liquids
b. metalloids
d. radioactive

Answers

The answer is B. metalloids

(boron, silicon, germanium, arsenic, antimony, tellurium, astatine, and polonium)

Final answer:

Elements along the stair step line of the periodic table are metalloids, with properties between those of metals and nonmetals. Metals are to the left and are conductive and malleable, while nonmetals are to the right and are typically poor conductors. Atomic radii decrease across a period and increase down a group. Option b

Explanation:

Elements that lie along the stair step line of the periodic table are known as metalloids. These elements exhibit properties that are intermediate between those of metals and nonmetals. Metals are typically found to the left of the metalloids, and they are generally malleable, shiny, and good conductors of heat and electricity.

On the other hand, nonmetals are located to the right of the metalloids and typically have opposite properties, such as being poor conductors of heat and electricity. The atomic radii of elements tend to decrease from left to right across a period because of the increasing positive charge in the nucleus, which pulls electrons closer. In contrast, atomic radii generally increase as you move down a group due to the addition of energy levels.


In which of the following conditions does
the car not accelerate?
A) A car moves at 80 km/h on a flat,
straight highway.
B) The car slows from 80 km/h to 35 km/h
C) The car turns a corner.
D) The car speeds up from 35 km/h to
80 km/h.

Answers

Answer:

The answer is A

Explanation:

If it goes 80km/h on a flat highway than it is not going any faster or slower.

When a  car moves at 80 kilometers / hour on a flat, straight highway then the car would not accelerate, therefore the correct answer is option A.

What is acceleration?

The rate of change of the velocity with respect to time is known as the acceleration of the object.

As per the second option when the car slows from 80 km/h to 35 km/h, then it would accelerate with negative acceleration.

When the car turns in the corner car would accelerate because there is a change in the velocity of the motion.

Similarly in the last option when a car speeds up from 35 km/h to

80 km/h, then it would generate acceleration because there is a change in the velocity with respect to the time.

The first option is the tye only case when the car would not accelerate because there is no change in the velocity of the car, thus the correct answer is option A.

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Roberta's next door neighbor has a theory that the best time to wash your car is late in the afternoon on Sunday. Is this a scientific theory? A. No, it is an opinion and is not testable. B. Yes, the car will stay clean for more of the week. C. Yes, the neighbor might be a scientist. D. No, it is better to wash cars on Saturday.

Answers

It’s A just for the fact that’s it’s her opinion an no facts behind her statement

Answer: no, it is an opinion and is not testable (a)

Explanation:

i just got this question on Study Island

Baseball players wear batting gloves to increase

Answers

Answer:

They are worn because they help increase the quality of the grip on the bat.

Explanation:

the chances of cathcing the ball

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Which of the following is an example of a wheel and axle?

A. wheel barrow
B. automobile steering wheel
C. jar lid
D. pencil

Answers

Answer:

A. Wheel barrow

can't rlly explain-

The correct answer to the question is B. automobile steering wheel, as it represents a wheel and axle system where the steering wheel turns the axle (steering column), steering the vehicle.

A wheel and axle is a simple machine where a wheel is attached to a central rod known as an axle. The combination is designed to amplify force and can be found in many tools and machines. In the context of the provided options, B. automobile steering wheel is the correct answer, as it exemplifies a wheel and axle system. The steering wheel serves as the wheel that, when turned, rotates the axle (steering column) which ultimately steers the vehicle.

Other examples provided, such as a wheelbarrow, jar lid, and pencil, do not fit the definition of a wheel and axle as accurately. The wheelbarrow indeed has a wheel, but the axle's function and setup differ from the wheel and axle mechanism. The jar lid is more similar to a screw, and a pencil lacks the rotational mechanics involved in a wheel and axle system.

which is is not an effective way to gain fitness

Answers

Staying at home and not working out
having a diet but not excercising or vice versa

A cylinder at left has balls stacked near its bottom with an arrow leading to a cylinder at right with balls evenly spaced throughout the cylinder. Which change of state is shown in the model? condensation evaporation sublimation deposition

Answers

Answer:

Sublimation

Explanation:

Your description corresponds to the picture attached.

In that model, the spheres represent atoms or molecules (is the same) of a substace. You can call them particles.

The particles tightly packed inside the cylinder of the left represent a substance in solid state whose particles are in a fix position and cannot move freely.

The particles randomly distributed throughout the cylinder on the right model a substance is gas state, where the particles occupy the whole space, moving freely.

Thus, the image depicts the change of a substance from solid state to gaseus phase. Such change is defined as sublimation.

Therefor, the answer is the third choice of your list: sublimation.

The change observed is the process of sublimation in the model. The correct answer is (c) sublimation.

In that model, the spheres represent atoms or molecules (the same) of a substance. You can call them particles.

The particles tightly packed inside the cylinder on the left represent a substance in a solid state whose particles are in a fixed position and cannot move freely.

The particles are randomly distributed throughout the cylinder on the right model a substance is a gas state, where the particles occupy the whole space, moving freely.

Thus, the image depicts the change of a substance from a solid state to the gaseous phase. Such change is defined as sublimation.

Therefore, the answer is the third choice of your list sublimation. The correct answer is (c).

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Which statement is the best interpretation of the ray diagram shown below?

Answers

A) A concave mirror forming a larger, virtual image

Explanation:

The figure is missing; see attachment.

There are two types of mirror:

Concave (converging) mirrors: a concave mirror is a mirror that reflects the light inwardConvex (diverging) mirrors: a convex mirror is a mirror that reflects the light outward

The image formed by a mirror can also be of two types:

Real image: it is formed on the same side of the object, with respect to the mirrorVirtual image: it is formed on the opposite side of the object, with respect to the mirror

In the figure of this problem (see attachment), we see that:

- The mirror reflects the light from the object inward --> so it is a concave mirror

- The image is formed on the other side of the mirror --> it is a virtual image

So the correct option is

A) A concave mirror forming a larger, virtual image

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Explain why a law is accepted as fact, but a theory is not

Answers

In scientific discourse, a law is generally considered a descriptive generalization about how some aspect of the natural world behaves under stated circumstances. A theory, on the other hand, is a well-substantiated explanation of some aspect of the natural world that incorporates facts, laws, inferences, and tested hypotheses. The principal difference is that a law describes what happens and a theory explains why it happens.

Laws are accepted as fact because they are simple, true statements about how things occur in nature, usually summed up in a mathematical formula. They are typically based on empirical evidence from observations and experiments. For example, the Law of Gravity describes the attraction between two objects but doesn’t explain the mechanism. Theories, however, go through rigorous testing and are only sustained after consistent empirical support. They aim to provide the most reasonable explanation based on the evidence at hand. Consider the Theory of Evolution by Natural Selection - it explains the mechanisms behind the changes in species over time. Unlike a law, a theory can be adjusted or discarded if new evidence presents itself that doesn't align with the current theory. This flexibility is why theories, despite being well-supported, are not accepted as unchanging facts, but rather as the best explanations we have based on current knowledge.

A real car moving at 10 km/h has more momentum than a toy car moving at the same speed because the real car ____.
A. generates less friction
B. has greater mass
C. has less mass
D. has greater forward motion

Answers

Answer:

The answer is B (has greater mass)

Final answer:

The real car has more momentum because it has greater mass.

Explanation:

The correct answer is B. The real car has greater mass.


Momentum is defined as the product of an object's mass and its velocity. In this case, both the real car and the toy car are moving at the same speed of 10 km/h. However, since the real car has greater mass, it will have a greater momentum.


For example, let's say the real car has a mass of 1000 kg and the toy car has a mass of 100 kg. The momentum of the real car would be 1000 kg × (10 km/h) = 10,000 kg km/h, while the momentum of the toy car would be 100 kg × (10 km/h) = 1000 kg km/h. Therefore, the real car has more momentum than the toy car.

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Calculate the force of gravity on a 5 kg mass at Earth's surface. The mass of the Earth is 6 x 1024 kg and its radius is
6.4 x 106 m. Do not use scientific notation. Round to a whole number (no decimal).

Answers

Force = 49 N

Explanation:

The gravitational force of attraction on the surface of earth F = G M m/R²

Here G = gravitational constant = 6.67 x 10⁻¹¹

M = mass of the earth and m = mass of the body on the surface of earth .

R = radius of earth

In this question

mass of earth = 6 x 10²⁴ kg  and its radius = 6 x 10⁶ m

The values are substituted in the above equation

F = 6.67 x 10⁻¹¹ x 6 x 10²⁴ x 5 / ( 6 x 10⁶ )² =  49 N

The mass will be attracted by 49 N of force .

How fast is a ball going when it hits the ground after being dropped from a
height of 13 m? The acceleration of gravity is 9.8 m/s2

Answers

Answer:

16 m/s.

Explanation:

potential energy = kinetic energy.

mgh = ½mv².Cancelling m from both sides,

gh = ½ v².

9.8*13 = ½ v²

2(127.4) = v²

v² = 254.8

v = √254.8

v = 15.96 ~ 16m/s.

Answer:

v = 16.1 m/s

Explanation:

Estimate how much farther a person can jump on the Moon as compared to Earth if the take off
speed and angle are the same? The acceleration due to gravity on the moon is one-sixth what it
is on Earth.

Answers

The maximum distance on the Moon is six times higher than on the Earth for the object with the same angle and take off speed.

Explanation:

Let us assume , an Object is thrown with initial Velocity u m/s and angle of θ above the horizontal level. The horizontal and vertical velocities are (x,y)

vₓ = v₀cos θ

[tex]v_{y}[/tex] = v₀ sinθ

now, the time when the object reaches the maximum height can be calculated from

[tex]v_{y}[/tex] = v₀ sinθ - at₀ = 0

t₀ = v₀ sinθ/a

thus, the total time in air is two times higher ; t = 2t₀ = 2 (v₀ sinθ) /a

the maximum distance can be calculated from this equation

X = vₓ t= v₀ cos  θ x 2 (v₀ sinθ) /a

it implies x is inversely proportional to a.

we know the acceleration on the Moon is 1/6 th of Earth.the ratio between between maximal distance on the moon and on the earth is 6.

The average speed of a train is 24.0km/hr. Suppose a train moving at this speed accelerates -0.20 m/s^2 until it reaches a speed of 8.0 km/hr. How long does it take the train to undergo this change in speed?

Answers

time = 2.2 sec

Explanation:

The initial speed of train = 24 km/hr = 24 x 1000/3600 = 20/3 m/sec

The final speed of train =  8 km/hr = 8 x 1000/3600 = 20/9 m/sec

The relation of motion

v = u + a x t

final velocity = initial velocity + acceleration x time

20/9 = 20/3 - 2 x t   where t is time

Because the acceleration is negative

2 t =  20/3 - 20/9 = 40/9   or  t = 20/9 sec = 2.2 sec

The time taken to decrease the speed from 24 km/hr to 8 km/hr is 2.2 sec approx

Which of the following is most closely related to the unit of time that humans call the month?


A.

the rotation of the Earth once on its axis

B.

the cycle of the Moon through all its phases

C.

the rotation of the Sun once on its axis

D.

the revolution of the Earth once around the Sun
Never mind found the answer

Answers

Answer:

the rotation of the earth once on its axis

An example of a metalloid, elements with properties between metals and non-metals, is:

A. silicon
B. iron
C. oxygen
D. copper

Answers

Answer: A

Explanation: The answer is silicon

Answer: silicon

Explanation:

The weather is warm and dry.

Which change would a cold front bring?

Answers

Answer:

rain or thunder

Explanation:

Find the sum of the vectors:10km west.5 km south

Answers

Answer:

11.2km

Explanation:

Using Pythagoras theorem

R² = 10² + 5²

R² = 100 + 25

R² = 125

R = √125

R = 11.2km

The sum of the vectors 10 km west and 5 km south results in a resultant vector with a magnitude of 11.18 km and a direction of 26.57 degrees south of west, calculated using vector addition and trigonometric functions.

To find the sum of the vectors mentioned in the question, we need to apply the principles of vector addition. The first vector is given as 10 km west, which we can represent as (-10, 0) in Cartesian coordinates assuming the west is the negative x-direction. Similarly, the second vector is 5 km south, which we can represent as (0, -5) since south is the negative y-direction.

The sum of the vectors is found by adding their respective components. Hence, we add the x-components and the y-components separately:

x-component: -10 km (west) + 0 km (south's x-component) = -10 kmy-component: 0 km (west's y-component) + (-5) km (south) = -5 km

Therefore, the resultant vector from the sum of these two vectors is (-10 km, -5 km). To find the magnitude and direction of this resultant vector, we use the Pythagorean theorem and trigonometry. The magnitude (R) of the resultant vector is given by:

R = √((-10 km)² + (-5 km)²) = √(100 km² + 25 km²) = √(125 km²) = 11.18 km

The direction is found by calculating the angle to the negative x-axis (west) using the arctan function: θ = arctan(|y-component|/|x-component|) = arctan(5/10) = 26.57 degrees south of west.

The distance from the start point to the destination is 11.18 km, and the direction is 26.57 degrees south of west.

What do the lines making a circle around the low-pressure area indicate?

areas of equal altitude

areas of equal pressure

a stationary front

an occluded front

Answers

Answer:

Areas of equal pressure.

Explanation:

The line making a circle means equal pressure.

Final answer:

The lines around a low-pressure area on a weather map are isobars, indicating areas of equal pressure crucial for predicting weather conditions.

Explanation:

The lines making a circle around the low-pressure area indicate areas of equal pressure, also known as isobars. These isobars connect places with the same atmospheric pressure measurements, typically in millibars. On a weather map, isobars form almost circular shapes around low-pressure centers, like cyclones, and indicate areas where the pressure decreases towards the center.

Understanding these pressure patterns is essential for meteorologists to describe and predict weather, as they directly affect weather conditions. For instance, the approach of a low-pressure system often brings cloudiness, winds, and precipitation.

Where is the input force
in the use of this simple
machine?
A. The feet planted in the snow
B.
The shovel lifted
C. The gravity pushing down on
the snow
D. The hands on the shovel

Answers

Answer:

the answer is B The shovel lifted

hope it helps!

B. The shovel lifted

What does the standard deviation of a set of data tell you?
O
A. The number of experiments that were performed
O
B. How many data points there are in the set
O
C. The largest and smallest data values of the set
O
D. How much each data point differs, on average, from the mean
value of the set
SUBMIT

Answers

Answer:D

Explanation:

The standard deviation of a set of data tell you how much each data point differs, on average, from the mean value of the set. The correct option is D.

What is standard deviation?

A standard deviation is a measure of how far apart the data is from the mean. A low standard deviation indicates that data is clustered around the mean, whereas a high standard deviation indicates that data is more spread out.

When data is distributed, standard deviation is important because it aids in understanding the measurements. The higher the standard deviation, the more evenly distributed the data is.

To summarize continuous data, the standard deviation is used in conjunction with the mean.

Furthermore, like the mean, the standard deviation is normally only appropriate when the continuous data is not significantly skewed or has outliers.

Thus, the correct option is D.

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While in flight, a hot air balloon decreases its elevation by 83 meters and then increases its elevation by 83.7 meters,
Enter an inequality in the ber to compare the changes in elevation of the hot air balloon while in flight.​ this is math that i dont get pls help

Answers

L-83 ≤ L ≤ L + 83.7

Explanation:

Let the initial height of the balloon is L .

The lower level is L - 83 , because it goes 83 m downwards

The upper limit is L + 83.7 , because it goes up by 83.7 m

Thus the inequality becomes

L-83 ≤ L ≤ L + 83.7

100 ml of water is initially at 20°C. 30,000 J of heat is added to the water. What is temperature change for the water?

Answers

Answer:

Therefore the new temperature of the water is 91.67°C

Explanation:

Specific heat of water = 4.186 joule /gram °C

The equation to calculate change of temperature

Q=s×m×ΔT

Q = the amount of heat = 30,000 J

s= Specific heat of water = 4.186 joule /gram °C

m = mass of the water = volume ×density=(100×1)gram =100 gram

ΔT = the change of temperature = (T-20)

Therefore,

30000= 4.186×100×(T-20)

⇔(T-20)= 71.67

⇔T = 71.67+20

⇔T = 91.67

Therefore the new temperature of the water is 91.67°C


By what mechanical adjustments can you speed up or slow down an old-fashioned grandfather
pendulum clock?

A)By changing the elongation angle of the pendulum


B) By giving the pendulum a slight nudge into or against its motion direction


C) By altering the length of the pendulum
D)
Either of the above works


E) None of the above works

Answers

C) By altering the length of the pendulum

Explanation:

The period of a simple pendulum is given by the equation

[tex]T=2\pi \sqrt{\frac{L}{g}}[/tex]

where

L is the length of the pendulum

g is the acceleration due to gravity

In this problem, we are asked which adjustmenet can be done to speed up or slow down the pendulum clock: that means, which adjustment can be done in order to change the period of the pendulum.

From the equation above, we notice that the period of a pendulum depends only on its length (and the acceleration of gravity). Therefore, its period can be changed only by changing the length of the pendulum. And so, the only correct answer is

C) By altering the length of the pendulum

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A piece of cork has a volume of 10 cm cube. find the net force on the cork if it is completely submerged and then released.
(density of cork=200kg/m^3)​

Answers

Answer:

Explanation:

The force required to submerge something underwater can be found from Archimedes principle:

FB=pwVg

Where FB is the buoyant force, pw is the density of water (1g/ml), V is volume of the water displaced, and g is gravity. The key here is V. The volume of water displaced by the cork is equal to the volume of cork. Therefore, the required force is

F=1 g/cm³ x 10 cm³ x 9.8 m/s²= 98 N

Other Questions
1.The character escape sequence to force the cursor to go to the next line is________: 2. The character escape sequence to force the cursor to advance forward to the next tab setting is__________: 3.The character escape sequence to represent a single quote is_________: 4.The character escape sequence to represent a double quote is__________: 5.The character escape sequence to represent a backslash is__________: a) Write down your full calculator display.b) Write your answer to part (a) correct to 2 decimal places. Assume that the company produces and sells 92,000 units during the year at a selling price of $7.37 per unit. Prepare a contribution format income statement for the year. You are interested in thymol in mouthwash. The manufacturer lists the active ingredients as thymol (0.064%), menthol (0.042%), eucalyptol (0.092%) and methyl salicylate. The inactive ingredients include caramel, water and alcohol (21.6%) in addition to sodium benzoate, color, poloxamer 407 and benzoic acid. (a) Does thymol represent a major, minor or trace concentration? (b) of the ingredients listed with concentration, which ones can be considered in trace amounts? (c) Which substance(s) is/are the sample? (d) Which substance(s) is/are the analyte? (e) Which substance(s) is/are the matrix? (f) If you were to prepare a blank for your measurement, what substance(s) would it contain? Middle america is made up of mid latitudes and central america which is an blank linking north and south merica In this exercise we examine in detail how an instruction is executed in a single-cycle datapath. Problems in this exercise refer to a clock cycle in which the processor fetches the following instruction word:10101100100001010000000000010100Assume that the data memory is all zeros and that the processors registers have the following values at the beginning of the cycle in which the above instruction word is fetched:R0R1R2R3R4R5R6R8R12 R3101-23-45-6-8-12 31a, What are the outputs of the sign-extend and the jump "Shift-Left-2" (near the top of Figure 4.24) for this instruction word? b, What are the values of ALU control units inputs (ALUOp and Instruction operation) for this instruction? c, What is the new PC address after this instruction is executed? Highlight the path through which this value is determined.d, For the ALU and the two add units, what are their data input values? e, What are the values of all inputs for the "Registers" unit? During the first decade of the twenty-first century, daily newspapers were in trouble all across the country, many having closed and many others poised to do so. This worried some scholars who believed that newspapers are vital for maintaining ________. "Two point masses m and M are separated by a distance d. If the separation d remains fixed and the masses are increased to the values 3 m and 3 M respectively, how does the gravitational force between them change? Which New Testament book is in a category all by itself and is an anonymous work addressed to a group of Jewish Christians? The graph shows the amount of money paid when purchasing bags of peanuts at the zoo: What is the constant of proportionality? (4 points) Select one: a. 1 b. 4 c. d. What are some settings you can control when formatting columns? Check all that apply. 1. the part of the document to apply the columns to2. the text styles 3. the number of columns 4. the width of each column 5. the number of images in each column 6. the line between columns 7. the margins What's the gist of what you read on pages 13-18 in unbroken England and Scotland both produce scones and sweaters. Suppose that an English worker can produce 50 scones per hour or 1 sweater per hour. Suppose that a Scottish worker can produce 40 scones per hour or 2 sweaters per hour. a. Which country has the absolute advantage in the production of each good? Which country has the comparative advantage? b. If England and Scotland decide to trade, which commodity will Scotland trade to England? Explain. c. If a Scottish worker could produce only 1 sweater per hour, would Scotland still gain from trade? Would England still gain from trade? Explain. Humans have a tendency to be afraid of the dark. Using examples, provide an explanation of this phenomenon within the framework of both behaviorism and evolutionary psychology. Are the two explanations necessarily incompatible? How did president Hoovers value of rugged individualism influence his policies and response to the Great Depression? Help, please!!! 50 points!!!What effects does ionizing radiation have on the atmosphere? Select the two correct answers. Measurements with small freshwater sponges such as Grantia have documented water flow rates around 3-4 ml/minute. Assuming that a sponge has a constant flow rate over the course of a day, how many ml of water could a single sponge such as Grantia filter in a 24-hour period? The sun is high, put on some sunblock.What is wrong with the sentence above? A. It lacks a subject. B. Nothing is wrong with it. C. It lacks a verb. D. It is a run-on sentence. The Tennis Teams of Atlanta need to older tennis balla for the upcoming tournament.They will need 2,367 tennis balls. If each can hold 5 tennis balls,how Many will they purchase through (-2,0) and (3, 10) write a equation