PHYSICS HIGH SCHOOL

A car of mass 1330 kg is traveling at 28 m/s.  The driver applies the brakes to bring the car to rest over a distance of 79 m. Calculate the force acting on the car.

Answers

Answer 1
Answer:


you could use SUVAT to work out the deceleration and then use F=ma

S= 79m U=28m/s V=0m/s A=? T=n/a

V^2 = U^2 + 2AS  so 0 = 28^2 + 158A  so -158A = 784

A= 4.962 (3dp)

so F = ma = 4.962 *1330 = 6599.494N (3dp)

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Dan was running and he tripped and hurt his knee. the pain signals were carried to his brain by the?

Answers

Answer:Central nervous system

Explanation:
the pain was triggered by the Nervous System

The process by which water diffuses from a region of greater concentration to a region of lesser concentration is called

Answers

Answer:

osmosis is the correct answer.

Explanation:

The process by which water diffuses from a region of greater concentration to a region of lesser concentration is called osmosis.

Osmosis is a process in which solvent moves through a selective semipermeable membrane into a more concentrated region.

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Osmosis is the process by which water diffuses from a region of greater concentration to a region of lesser concentration

Terrane accretion generally occurs along a ________ boundary between a continental plate and an oceanic plate.

Answers

Answer; 
Terrane accretion generally occurs along a convergent boundary between a continental plate and an oceanic plate.

Explanation; 
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Additionally, it is also likely for a new divergent plate boundary to develop that rifts a continent apart.

Covalent bonds tend to make atoms more stable by helping them

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by helping them achieve a full outer shell
Covalent bonds are where two atoms SHARE electrons,  that way they can be stable :D

What is acceleration due to gravity

Answers

If you stay on the same planet and drop a lot of objects one at a time,
it turns out that every object you drop falls from your hand to the ground
with the same acceleration, and hits the ground with the same speed,
no matter whether the object is light, heavy, or anything in between.

That particular value of acceleration is the "acceleration due to gravity".
On Earth, it's 9.81 meters per second².  On the moon, it's 1.62 meters
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Why we don't generally notice it:  The previous description is true if the
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Convert 56 kilometers to inches

Answers

The conversion for km to inches is:

1km=39370.1in

Now we can solve for 56 km..

56km=39370.1*56
56km= 2204725.6in

Answer=2,204,725.6in
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