Answer:
Explanation:
Folic acid is the form of folate found in vitamin supplements and fortified foods. Fortified foods, also called enriched foods, are foods that have specific nutrients added to them.
Neural tube defect happen when the tissues and bone around the brain and spine do not grow well. Neural tube can happen in the third and fourth week after conception (the first or second week after your first missed period). This could be before you know that you are pregnant.
Folic acid lowers the risk of your unborn baby having a neural tube defect . Neural tube are a group of serious birth defects that affect a baby’s spinal cord, brain and skull. Some babies with severe Neural tube defect birth are stillborn or do not survive long after birth. Spina Bifida is the most common Neural tube defect.
what force is necessary to accelerate a 1,200kg car at a rate of 35m/s^2
Answer:
42000N
Explanation:
F=mass *acceleration
F= 1200*35
F=42000N
What statement is true about Newton's second law?
A. When the net force of an object increases, the object's acceleration decreases.
B. When the net force of an object decreases, the object's acceleration decreases.
C. When the net force of an object decreases, the acceleration doesn't change.
D. When the net force of an object decreases, the object's acceleration increases.
Please answer quickly!
The given statement "When the net force of an object decreases, the object's acceleration decreases" is true about Newton's second law.
Answer: Option B
Explanation:
Newton’s second law of motion states that the object’s acceleration depends on two variable:
Directly proportionate to the object’s force existed Inversely proportionate to the mass of the objectsThe equation can be given as below,
Force = mass × acceleration
Hence, from the above, it is concluded that force is directly proportionate to mass and acceleration of the objects. So, when force increases both mass and acceleration increases. Similarly, if force decreases, both mass and acceleration get decreased. Therefore, the given statement in option B would be correct answer.
A student performs a lab measuring the velocities of toy cars of different masses. A 3 column table with 4 rows. The first column is labeled Car with entries Car 1, Car 2, Car 3, Car 4, Car 5. The second column is labeled Mass in kilograms with entries 5, 5.5, 6, 6.5, 7. The third column is labeled Velocity in meters per second with entries 2.2, 2, 1.35, 1.90, 1.35. Which cars have the same magnitude of momentum? Check all that apply. car 1 car 2 car 3 car 4 car 5
car 1 & car 2
Explanation:
Momentum is the product of mass and velocity.
Form a table as shown below
Car Mass velocity Momentum
1 5 2.2 5*2.2 = 11
2 5.5 2.0 5.5*2=11
3 6 1.35 6*1.35=8.1
4 6.5 1.90 6.5*1.90=12.35
5 7 1.35 7.0*1.35=9.45
Learn More
Momentum:https://brainly.com/question/3088457
Keywords : lab,measurements, velocities, toy cars, masses, column, rows,magnitude
#LearnwithBrainly
The magnitude of momentum is the product of an object's mass and its velocity. When you calculate these for each car, Cars 1 and 2 are found to have the same momentum of 11 kg m/s.
Explanation:The momentum of an object is calculated by multiplying its mass by its velocity. In this case, you can calculate the momentum for each car and then compare the results to find which have the same magnitude of momentum.
Car 1: 5 kg * 2.2 m/s = 11 kg m/s Car 2: 5.5 kg * 2 m/s = 11 kg m/s Car 3: 6 kg * 1.35 m/s = 8.1 kg m/s Car 4: 6.5 kg * 1.90 m/s = 12.35 kg m/s Car 5: 7 kg * 1.35 m/s = 9.45 kg m/s
From this, we can see that Car 1 and Car 2 have the same magnitude of momentum (11 kg m/s).
Learn more about Momentum here:
https://brainly.com/question/33450468
#SPJ3
A ball is falling after rolling off a tall roof. The ball has what type of energy.
Answer:
Correct answer: Kinetic energy of rotation, kinetic energy of translation and potential energy
Explanation:
Before it began to rotate it possessed potential energy. After being released from the rest it starts to roll on the roof and get kinetic energy of rotation, kinetic energy of translation along with potential energy.
God is with you!!!
A student has a mass (including clothes and shoes) of 65.0 kg. She drinks a 12 oz. can of soda, with a nutritional energy content of 140 Cal. Assuming that the efficiency of her muscles is 20%, how high can she climb without losing weight?
Conversion: 1 Cal = 1,000 cal = 4,180 J
She can climb 0.92 m without losing weight.
Explanation:
Gravitational potential energy is the energy consisting of the product of mass, gravity and height.
1 cal = 4184 J
140 cal = 585760 J
Energy = 585760 J, m = 65.0 kg = 65000 g, Efficiency = 20 %
GPE = mgh
where m represents the mass
g represents the gravity,
h represents the height.
585760 = 65000 9.8 h
h = 0.92 m.
why does a passenger jumping out of a rapidly moving bus fall forqard with his face downwards
Answer:
Explanation:
It's Newton's first law of motion, and object in motion continues to stay in motion unless acted upon by an unbalanced force. In this case, your body is the force that's moving on the bus. When you jump(the unbalanced force) your body is still used to being in motion, which makes you fall and not land on your feet.
Predict what would happen to an organism if food suddenly became more abundant?
Answer:
hunger or mutation
Explanation:
If food suddenly becomes more available, the population of an organism might increase (population boom), potentially face increased predation, and show altered genetic variation in future generations.
Explanation:If food suddenly became more abundant for an organism, several potential outcomes could occur, largely dependent on the specific conditions of a species' environment.
Broadly, one would expect the organism's population to increase due to increased resources for growth and reproduction. This is called a population boom. This is because with more food available, more individuals can be sustained and reproductive success may be higher.
Furthermore, if a species is heavily preyed upon and suddenly has more food available, it may face increased predation; predators may not avoid eating this suddenly more abundant prey. However, these effects can also sometimes be offset by an increased individual health and reproductive success in the prey species, allowing its population to persist or even grow despite increased predation.
Lastly, a sudden increase in food can also change the genetic variation within the population. If food was scarce and suddenly becomes abundant, organisms that were historically well-adapted for survival in harsh conditions might not be as well-adapted to the new conditions. This could potentially increase genetic variation in the future generations.
Learn more about Population here:https://brainly.com/question/32135442
#SPJ2
Matter is anything that has
Answer:
Space
Explanation:
Hope this helped
Answer:
VOLUME AND MASS IF U ;LOOK AT THE OTHERGUIYS ANSWER IS SPACE WHICH IS CORRECT BUT MY ANSSIGNMENT DOES NOT HAVE THAT ANSWER SO ITS VOLUME AND MASS
Explanation:
I need help with this problem.
Answer:
-6, [tex]-5\frac{2}{5}[/tex], [tex]-4\frac{1}{5}[/tex]
Explanation:
The solution of answer is in the picture attached
Speed is the rate at which an object moves relative to its reference point. Average speed is the total distance divided by the total time. We use average speed because the speed of an object may vary over time. Common measures of speed include miles per hour, meters per second or kilometers per minute. If you drive at a speed limit of 65 miles per hour, it means that in one hour you will have traveled 65 miles from the reference point of where you began.
Because the speed at which an object travels varies over time,
A
it is impossible to calculate any type of speed measurement.
B
distance is considered the more important measurement.
C
average speed is used, which is total distance divided by total time.
D
time is considered the more important measurement.
Answer:it is c
Explanation:
the question answered itself.
reread the question
The subject of this question is Physics. Average speed is used to measure the speed of an object because it takes into account the variation over time.
Explanation:The subject of this question is Physics. The question is discussing the concept of speed and how it is measured. It explains that average speed is used because the speed of an object may vary over time. Distances and time are important measurements for calculating speed, but average speed takes into account the variation over time. Therefore, the correct answer is option C: average speed is used, which is total distance divided by total time.
Learn more about Physics here:https://brainly.com/question/32123193
#SPJ2
(1) find the density of a substance if the mass of the substance is 150kg and dimension 20mby10mby5m
Answer:
0.15kg/m³
Explanation:
Density = mass/ volume
Given that
Mass = 150kg
Note that volume = length x breadth x height
Volume = 20 x 10 x 5
Volume = 1000m³
Density = mass ➗ volume
Density = 150kg ➗ 1000m³
Density = 0.15kg/m³
I hope this was helpful, Please mark as brainliest
Final answer:
The density of the substance is calculated by dividing its mass by its volume. With a mass of 150kg and volume of 1000m³, the density is 0.15 kg/m³.
Explanation:
To find the density of a substance, you need to divide its mass by its volume. The given mass of the substance is 150kg, and the dimensions provided are 20m by 10m by 5m. First, you have to calculate the volume by multiplying these dimensions together:
Volume = length × width × height = 20m × 10m × 5m = 1000m³.
Now, you can calculate the density using the formula:
Density = mass / volume = 150kg / 1000m³.
Therefore, the density of the substance is 0.15 kg/m³.
Juliana walks 45 meters East, 45 meters south and 45 meters north. What is her resultant displacement?
Her resultant displacement is (45 Meters East.)
She originally walks 45 meters east, then she goes south 45 meters, then north 45 meters. The south and north placements just make her go back to where her previous placements were before them. Making her 45 meters east.
2 Points
What type of electromagnetic radiation is being used in the picture?
Answer:
Ultraviolet radiation.
Describe how waves change when they meet an object
Answer:
Reflection impacts a change in direction of waves when they bounce off a barrier. When a wave confronts a barrier with a hole or gap, which is much smaller than the wavelength, the wave bends and spreads out as a spherical circular wave.
Explanation:
If you have any questions feel free to ask in the comments - Mark
Also when you have the chance please mark me brainliest.
Answer:
Reflection impacts a change in direction of waves when they bounce off a barrier. When a wave confronts a barrier with a hole or gap, which is much smaller than the wavelength, the wave bends and spreads out as a spherical circular wave.
Explanation:
5. How are humans affecting global climate change?
Answer:
Due to the generation of carbon dioxide
Explanation:
Climate change occurs due to global warming generated by greenhouse gases. Carbon dioxide is the gas that does not leave or allow solar radiation from the sun to rise from the Earth's surface, increasing the average temperature of the planet.
Burning fossil fuels for energy generation such as coal is another source of carbon dioxide generation. The generation of energy should be directed towards the production of renewable energies, using sources such as solar and wind energy.
what is the initial velocity of a go-kart traveling at a uniform acceleration of 0.5 m/s^2 for 5s as it slows down to a stop?
The initial velocity of go-kart is 2.5 m/s.
Explanation:
Here, the uniform acceleration of go-kart is given as 0.5 m/s². Also the time required by it to stop is also given as 5 s. As acceleration is the measure of change in velocity per unit time.
In this case, the velocity should be changed from a value to zero to come to rest. So the initial velocity will be positive value and final velocity is zero.
As we know the values of acceleration, final velocity and time, the initial velocity can be easily determined as follows.
[tex]Acceleration = \frac{Final velocity -Initial velocity}{Time}[/tex]
Since, final velocity is zero, acceleration is 0.5 m/s² and time is 5 s, then,
[tex]-0.5=\frac{-\text {Initial velocity}}{5}[/tex]
Initial velocity = 0.5 × 5 = 2.5 m/s.
So the initial velocity of go-kart is 2.5 m/s.
I can't figure out what the third number I need is in this question a car traveling at +20 m/s applies the brakes and stops in 6.5s. what is the cars acceleration.
The acceleration is [tex]-3.1 m/s^2[/tex]
Explanation:
The acceleration of an object is the rate of change in velocity of the object.
Mathematically, it is given by
[tex]a=\frac{v-u}{t}[/tex]
where
u is the initial velocity
v is the final velocity
t is the time taken for the velocity to change from u to v
For the car in this problem, we have:
u = +20 m/s
v = 0 (because the car comes to a stop)
t = 6.5 s (time taken)
Therefore, the acceleration is
[tex]a=\frac{0-(+20)}{6.5}=-3.1 m/s^2[/tex]
Where the negative sign means that the direction of the acceleration is opposite to the direction of the initial velocity.
Learn more about acceleration:
brainly.com/question/9527152
brainly.com/question/11181826
brainly.com/question/2506873
brainly.com/question/2562700
#LearnwithBrainly
Answer:
The answer is A!
Explanation:
A is for A+! I also got the correct answer on UsaTestPrep!
which refers to the measure of the amount of water vapor in yhe air?
Answer:
The amount of water vapor in the air is called absolute humidity. The amount of water vapor in the air as compared with the amount of water that the air could hold is called relative humidity. This amount of space in air that can hold water changes depending on the temperature and pressure.
The amount of water vapor in the air is represented by the term 'relative humidity'. This is the ratio of the current amount of water vapor to the maximum amount that the air could hold at that temperature, typically expressed as a percentage. The saturation point or the temperature at which the relative humidity becomes 100% is known as the 'dew point'.
Explanation:The measure of the amount of water vapor in the air refers to the concept of relative humidity. This is the ratio of the current amount of water vapor in the air (vapor density) to the maximum amount the air can hold at that temperature (saturation vapor density).
Relative humidity is expressed as a percentage. For example, if the air contains 9.40 g/m³ of water vapor, we would look up the saturation density for the current temperature. Let's say at 10.0°C, the saturation density is 9.40 g/m³. This means the air is holding as much water vapor as it can at that temperature, so the relative humidity is 100%. This temperature is known as the dew point.
As another example, if the air temperature rises or falls, it can change the amount of water vapor the air can hold, and thus change the relative humidity. This is why relative humidity often changes over the course of a day as the air temperature changes.
Learn more about Relative Humidity here:https://brainly.com/question/10849972
#SPJ5
Paul the penguin loves to skate on ice. If he glides 40 Meters in 12 seconds toward the north’s what is Paul velocity
Paul the penguin's velocity is 3.33[tex]ms^{-1}[/tex].
Explanation:
Paul glided (displaced) 40 meters towards north.
The time he taken to displace is 12 seconds.
∴displacement d= 40m.
time t= 12s.
The speed of a body in a certain direction is the measure of Velocity.
The velocity of the an moving object is given by ratio of the rate of change in the distance by the time taken.
⇒Velocity v= [tex]\frac{displacement}{time}[/tex].
=[tex]\frac{40}{12}[/tex].
=3.33 [tex]ms{-1}[/tex].
Thus the velocity of the Paul the penguin glided on ice is 3.33 [tex]ms{-1}[/tex].
A ball is falling after rolling off a tall roof
The ball has what type of energy.
Answer:
Linear and rotational Kinetic Energy + Gravitational potential energy
Explanation:
The ball rolls off a tall roof and starts falling.
Let us first consider the potential energy or more specifically gravitational potential energy ([tex]mgh[/tex]; [tex]m[/tex] = mass of the ball, [tex]g[/tex] = acceleration due to gravity, [tex]h[/tex] = height of the roof). This energy comes because someone or something had to do work to take the ball to the top of the roof against the force of gravity. The potential energy is naturally maximum at the top and minimum when the ball finally reaches the ground.
Now, the ball starts to roll and falls off the roof. It shall continue rotating because of inertia (Newton's first law). This contributes to the rotational kinetic energy ([tex]\frac{1}{2}I\omega^2[/tex]; [tex]I[/tex]=moment of inertia of the ball & [tex]\omega[/tex] = angular velocity).
Finally comes the linear kinetic energy or simply, kinetic energy ([tex]\frac{1}{2}mv^2[/tex]) which is caused due to the velocity [tex]v[/tex] of the ball.
11. What do foliated and un-foliated mean in metamorphic rocks?
They are two types of metamorphic rocks which differ on the basis of formation and appearance.
Explanation:
Foliated metamorphic rocks are a type of metamorphic rocks which appear like layers which is caused due to heat exposure and pressure.They are formed due to high pressures.Examples are phyllite, slate, schistNon-foliated metamorphic rocks do not have such a layered appearance. They are formed due to low pressures and also because of contact metamorphism. This is why they are mostly called as hornfels. Examples are hornfels, marbleWhy does a crumpled paper land before a flat sheet of paper?
Answer:
The crumpled paper hits the ground first due to air resistance. The crumpled paper has less surface area than the flat paper, therefore the crumpled paper hits first.
I hope this helped. If you could mark brainliest that would be greatly appreciated.
Answer:
Crumpled paper
Explanation:
because it has less surface area than flat paper and resistance force is not acting on it
QUICKLY! Help on 6 and 7, please? I don't know wHAT to do
6a) Acceleration of the bullet: [tex]1.44\cdot 10^5 m/s^2[/tex]
6b) Final velocity of the bullet: 360 m/s
7a) Acceleration of the truck: [tex]1.50 m/s^2[/tex]
7b) Net force on the truck: 54,000 N
7c) The acceleration will triple
Explanation:
6a)
The acceleration of the bullet can be found by using Newton's second law, which states that the net force acting on an object is equal to the product between the mass of the object and its acceleration:
[tex]F=ma[/tex]
where
F is the force
m is the mass
a is the acceleration
For the bullet in this problem, we have
F = 3600 N (force)
m = 0.025 kg (mass of the bullet)
Therefore, the acceleration is
[tex]a=\frac{F}{m}=\frac{3600}{0.025}=1.44\cdot 10^5 m/s^2[/tex]
6b)
The motion of the bullet is a uniformly accelerated motion, so we can use the following suvat equation:
[tex]v=u+at[/tex]
where
u is the initial velocity
v is the final velocity
a is the acceleration
t is the time elapsed
In this problem, we have:
u = 0 (the bullet starts from rest)
t = 0.0025 s (time)
[tex]a=1.44\cdot 10^5 m/s^2[/tex] (acceleration)
So we can solve to find v, the final velocity of the bullet as it leaves the rifle:
[tex]v=0+(1.44\cdot 10^5)(0.0025)=360 m/s[/tex]
7a)
The acceleration of a body is defined as the rate of change of its velocity:
[tex]a=\frac{v-u}{t}[/tex]
where
u is the initial velocity
v is the final velocity
t is the time taken for the velocity to change from u to v
a is the acceleration
For the truck in this problem, we have
u = 0 (it starts from rest)
v = 28 m/s (final velocity)
t = 18.7 s (time elapsed)
Substituting, we find the acceleration
[tex]a=\frac{28-0}{18.7}=1.50 m/s^2[/tex]
7b)
The net force on the truck can be calculated using Newton's second law:
[tex]F=ma[/tex]
where
F is the force
m is the mass
a is the acceleration
For the truck in this problem,
m = 36,000 kg is the mass of the truck
[tex]a=1.50 m/s^2[/tex] is the acceleration
So, the net force on the truck is
[tex]F=(36,000)(1.50)=54,000 N[/tex]
7c)
We said that the relationship between the net force on the truck and its acceleration is
[tex]F=ma[/tex]
The equation can be rewritten as
[tex]a=\frac{F}{m}[/tex]
We notice that the acceleration is directly proportional to the acceleration.
Here we are told that the net force on the truck is tripled, therefore
[tex]F'=3F[/tex]
As a consequence, the new acceleration of the truck would be
[tex]a'=\frac{F'}{m}=\frac{3F}{m}=3\frac{F}{m}=3a[/tex]
So, the acceleration also triples.
Learn more about force, acceleration and Newton's second law:
brainly.com/question/11411375
brainly.com/question/1971321
brainly.com/question/2286502
brainly.com/question/2562700
#LearnwithBrainly
How people change their thinking and behaviors is central to which
perspective?
More
A. Developmental
B. Social psychology
C. Biopsychology
D. Cognitive-behavioral psychology
Answer:
its cognitive- behavioral psychology
hope u have a good day!! :)
Answer:
D
Explanation:
just did the test
All electric circuits have devices that are run by _____ energy.
Answer: electrical energy
Explanation:
Electrical energy
Mrs. Waid drives her car up Route 8 at 80mph. If her car weighs 2500 lbs,
how much Kinetic energy does it have?
1.358 J is the kinetic energy of the car driven by Mrs. Waid.
Explanation:
Given data:
Velocity at which Mrs. Waid drives her car = 80 mph
In order to convert mph (meter per hour) into mps (meter per second),
[tex]\frac{80}{3600}=0.0222 \mathrm{m} / \mathrm{s}[/tex]
Car weighs 2500 lbs, means mass of the car, m = 2500 lbs
I kilo gram = 2.20462 pound
Therefore, 1 pound (lb)= 0.45359237 kilograms (kg).
To converting pounds into kilogram,
[tex]\frac{2500}{0.45359237}=5511.55 \mathrm{kg}[/tex]
As we know, the kinetic energy can be defined as directly proportionate to the object’s mass (m) and square of its velocity (v). The expression can be given as below,
[tex]\text { kinetic energy }(K . E)=\frac{1}{2} \times m \times v^{2}[/tex]
By substituting the given values, we get
[tex]\text { kinetic energy }(K . E)=\frac{1}{2} \times 5511.55 \times 0.0222^{2}[/tex]
[tex]\text { kinetic energy }(K . E)=\frac{1}{2} \times 5511.55 \times 0.00049[/tex]
[tex]kinetic energy (K . E)=1.358 joule[/tex]
Please help question in photo
Answer:
A.) the car
Explanation:
hope this helped <3
Bone has a Young's modulus of about
1.8 x 100 Pa. Under compression, it can
withstand a stress of about 1.58 x 10° Pa be-
fore breaking.
Assume that a femur (thigh bone) is 0.54 m
long, and calculate the amount of compression
this bone can withstand before breaking.
Answer in units of mm.
Answer: 4.74 mm
Explanation:
We can solve this problem with the following equation:
[tex]Y=\frac{stress}{strain}[/tex] (1)
Where:
[tex]Y=1.8(10)^{10} Pa[/tex] is the Young modulus for femur
[tex]stress=\frac{F}{A}=1.58(10)^{8} Pa[/tex] is the stress (force [tex]F[/tex] applied per unit of transversal area [tex]A[/tex]) on the femur
[tex]strain=\frac{\Delta l}{l_{o}}[/tex]
Being:
[tex]\Delta l[/tex] the compression the femur can withstand before breaking
[tex]l_{o}=0.54 m[/tex] is the length of the femur without compression
Writing the data in equation (1):
[tex]Y=\frac{\frac{F}{A}}{\frac{\Delta l}{l_{o}}}[/tex] (2)
[tex]1.8(10)^{10} Pa=\frac{1.58(10)^{8} Pa}{\frac{\Delta l}{0.54 m}}[/tex] (3)
Isolating [tex]\Delta l[/tex]:
[tex]\Delta l=\frac{(1.58(10)^{8} Pa)(0.54 m)}{1.8(10)^{10} Pa}[/tex] (4)
[tex]\Delta l=0.00474 m[/tex] (5) This is the compression in meters
Converting this result to millimeters:
[tex]\Delta l=0.00474 m \frac{1000 mm}{1 m}=4.74 mm[/tex]
hi :) In a pendulum experience , what affects the period & explanation too? Thank you sm :))
Answer:
T=2π[tex]\sqrt{l/g}[/tex] (simple pendulum)
length of the string and gravity mainly effect the pendulum period
Explanation:
Car A runs a red light and broadsides Car B, which is stopped and waiting to make a left turn. Car A has a mass of 1,800 kg. Car B has a mass of 1,500 kg. After the impact, the cars stick together and slide away at a speed of 7.1m/s. How fast was Car A going when it hit Car B? Can someone explain the steps to find the answer please?
Answer:
13 m/s
Explanation:
Momentum is conserved, so initial total momentum = final total momentum.
m₁ u₁ + m₂ u₂ = m₁ v₁ + m₂ v₂
Since Car B is originally not moving, u₂ = 0.
m₁ u₁ = m₁ v₁ + m₂ v₂
Since the cars stick together, they have the same final velocity, so v₁ = v₂ = v.
m₁ u₁ = m₁ v + m₂ v
m₁ u₁ = (m₁ + m₂) v
Given that m₁ = 1800, m₂ = 1500, and v = 7.1:
1800 u₁ = (1800 + 1500) 7.1
u₁ = 13
Car A was travelling at 13 m/s.