after the car leaves the platform , gravity causes it to accelerate downward at a rate of 9.8 m/s2. what is the gravitational force on the car?

Answers

Answer 1
Answer:
The gravitational force on the car is the force popularly known
as the car's "weight".  Its magnitude is

            (9.8 m/s²) times (the car's mass, in kilograms) .

The unit of this quantity is [newton] .


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Please help me with this science question.
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What is body composition?How much you weigh
How much of your body is made of fat and muscle
How much hair you have

Answers

Answer:

How much of your body is made of fat and muscle.

Explanation:

In physical fitness, body composition is used to describe the percentages of fat, bone, water and muscle in human bodies. Because muscular tissue takes up less space in the body than fat tissue, body composition, as well as weight, determines leanness.

how much of ur body is made of fat and muscle

If an atom is neutral, then the number of electrons is equal to the number of

Answers

Answer:

The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.

hope it helps:)

Answer:

Then number of electrons is equal to number of protons

Explanation:

Since protons are positive and electrons are negitive, they cancel each other.

HENCE THEY ARE NEUTRL

Hope it helps u...

How does a merry go round use potential and kinetic energy

Answers

Answer: This should be a huge help in ur answer...

Explanation: potential energy is the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors and kinetic energy is energy which a body possesses by virtue of being in motion.

The park has added two more cars to the already existing roller coaster. If the park wants to maintain the speed of the roller coaster with the addition of the cars, what must it do? A) Increase the height a point A. B) Increase the heights at point A and B. C) Reduce the number of hills and dips in the course. D) Increase the friction between the wheels and the track.

Answers

D because friction will slow it down going up hills (for safety reasons) and you go really fast going down.

Answer:

Decrease the friction between the wheels and the track.

Explanation:

Decrease the friction between the wheels and the track. Friction opposes motion. If the amount of friction is decreased, the speed of the cars should increase.

This answer is for the question on usa testprep

Balance P4O10+3H2O to 2H3PO4

Answers

the result you got it suppose to be 4H3PO4 therefore you balance it like this :
P4O10 + 6H2p ----> 4H3PO4

Which bundles of cells in the lungs that take in oxygen

Answers

Hello,

The bundle of cells in the lungs that take in oxygen is "Red blood cells".

Have A Good Day.