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mezya [45]
3 years ago
9

If a body with a mass of 4 kg is moved by a force of 20 N, what is the rate of its acceleration?​

Physics
1 answer:
valentina_108 [34]3 years ago
8 0

Explanation:

F = ma

20 N = (4 kg) a

a = 5 m/s²

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Describe the stratosphere.
Leviafan [203]

1. The stratosphere is above the troposphere. This layer of the atmosphere is where planes fly. At the top of the stratosphere, there is a ozone layer.

2. The mesosphere is above the stratosphere. Temperatures drastically drop in the mesosphere. It is the middle layer of the atmosphere.

3. Here are the layers of the atmosphere:

  • Troposphere
  • Stratosphere
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Hope this helps you!

8 0
3 years ago
2 1100 kg cars drive east; the first moving at 30 m/s the 2nd at 15 m/s what is the magnitude of the total momentum of the syste
11Alexandr11 [23.1K]
<h3>Answer:</h3>

49500 kgm/s

<h3>Explanation:</h3>

Data given;

  • First car; Mass = 1100 kg
  • Velocity = 30 m/s
  • Second car; mass = 1100 kg
  • Velocity = 15 m/s

We are required to calculate the total momentum of the system.

  • We need to know that momentum is calculated by multiplying the velocity of a body by its mass.
  • Therefore;

Momentum of the first car = 1100 kg × 30 m/s

                                           = 33,000 kgm/s

Momentum of the second car = 1100 kg × 15 m/s

                                                  = 16,500 kgm/s

Therefore;

Total momentum = 33,000 kgm/s + 16,500 kgm/s

                             = 49500 kgm/s

Thus, the total momentum of the system is 49500 kgm/s

4 0
4 years ago
Why is it very difficult for astronomers to find objects like planets and asteroids?
mezya [45]
It is difficult for astronomers to find object like planets and asteroids because it takes a lot of time to verify the objects locations and what surrounds a certain object in order to prove and be precise of its location
3 0
4 years ago
Why do different latitudes have different temperatures?
liubo4ka [24]
Latitude or distance from the equator. Temperatures drop the further an area is from the equator due to the curvature of the earth. In areas closer to the poles, sunlight has a larger area of atmosphere to pass through and the sun is at a lower angle in the sky.
If the answer is correct please mark as brainlist


8 0
3 years ago
Read 2 more answers
A man has a mass of 70kg. Calculate his weight on earth where the gravitational strength is 10 N/kg​
maw [93]

Answer:

So the weight of the body is 700N

Explanation:

mass of the object=70kg

force of gravity=10N/kg

weight of the object=w-?

as we know that

weight=mass × force of gravity

weight=70kg × 10N/kg

WEIGHT OF THE BODY=700N

I HOPE IT WILL HELP YOU

GOOD LUCK FOR THE ASSIGNMENT

4 0
4 years ago
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