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dlinn [17]
4 years ago
5

What does it mean to say that momentum is conserved?

Physics
1 answer:
Sindrei [870]4 years ago
4 0

Answer:

C. The total momentum of a set of objects is the same before and

after a collision.

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To test your FHE brother's claims about his car, you accept his offer of a ride about campus. Not wanting to exceed the speed li
damaskus [11]

Answer:

4.78 m/s^2

Explanation:

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which factors affect absorption and reflection of thermal energy? check all that apply. THIS IS A TEST​
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4 0
3 years ago
A block of mass 5 kg is placed on a rough table having a coefficient of static friction μs = 0.2.What is the force required to m
just olya [345]

Answer:

<em>We need to (at least) apply a force of 9.8 N to move the block</em>

Explanation:

<u>Second Newton's Law</u>

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F_n=ma

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F_r=\mu F_N

Where \mu is the static friction coefficient and F_N is the normal force exerted by the table to the object. Since there is no motion in the vertical direction the normal force equals the weight of the object:

F_N=mg=5\ kg\ 9.8\ m/s^2=49\ N

The friction force is

F_r=0.2 (49)=9.8\ N

Thus, we need to (at least) apply a force of 9.8 N to move the block

5 0
4 years ago
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An electric field has both magnitude and direction.
I don't think that's one of the first 3 choices.
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3 years ago
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