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Alexus [3.1K]
3 years ago
14

Which sentence correctly describes a friction force? A. It acts in the same direction as the motion of an object. B. It acts in

a direction opposite to the motion of an object. C. It acts in the same direction as the force of gravity on an object. D. It acts in a direction perpendicular to the motion of an object.
Physics
1 answer:
KatRina [158]3 years ago
5 0

Answer:

B

Explanation:

Friction acts in a direction opposite to the motion of an object

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oxygen

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when he returns his hertz rent-a-rocket after one week's cruising in the galaxy, spock is shocked to be billed for three weeks'
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(In the frame of rocket)

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on solving above equation we get :

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He was spreading around at close to the speed of light.

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To know more about special theory of relativity :

brainly.com/question/28289663

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1 year ago
A 100-n object and a 50-n object are placed on scales a and b respectively inside an elevator ascending with constant velocity
german

Answer: b

Explanation:

8 0
2 years ago
A boy drops a ball from an observation tower. The ball hits the ground in 5.0 s. What is the ball's velocity at the time of impa
Orlov [11]
The answer is <span>C. 49 m/s

The kinetic equation is:
v2 = v1 + a * t

v1 - initial velocity
v2 - final velocity
a - gravitational acceleration
t - time

We know:
v2 = ?
v1 = 0 (in free fall
a = 9.8 m/s
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</span>v2 = v1 + a * t
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7 0
3 years ago
Which statement best compares the momentum of a 5-kilogram fish swimming at a speed of 10 meters/second and a 2-kilogram fish sw
ruslelena [56]
M = mass of the larger fish =5kg
<span>V = velocity of the larger fish =10m/s</span>
<span>m = mass of the smaller fish =2kg</span>
<span>v = velocity of the smaller fish =10m/s
</span>formula=
<span>MV = mv 
5kg*10m/s=2kg*10m/s
biggern mass fish has more momentum
hope this helps

</span>
6 0
3 years ago
Read 2 more answers
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