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Hoochie [10]
2 years ago
8

A ball is rolling down a hill. Wich action would slow the ball down?

Physics
2 answers:
ziro4ka [17]2 years ago
7 0
Friction.............................
Feliz [49]2 years ago
4 0

Answer:

Friction Force

hope this helped :)

Explanation:

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Which of the following statements is true regarding the constructive interference diagram shown below? Select all that apply.
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Answer:

I believe its B and C

Explanation:

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6 0
2 years ago
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A bowling ball of mass 5.8 kg moves in a straight line at 4.34 m/s How fast must a Ping-Pong ball of mass 2.214 g move in a stra
lilavasa [31]

Answer: 11369.46 m/s

Explanation:

We have the following data:

m_{1}=5.8 kg is the mass of the bowling ball

V_{1}=4.34 m/s is the velocity of the bowling ball

m_{2}=2.214 g \frac{1 kg}{1000 g}=0.002214 kg is the mass of the ping-pong ball

V_{2} is the velocity of the ping-pong ball

Now, the momentum p_{1} of the bowling ball is:

p_{1}=m_{1}V_{1} (1)

p_{1}=(5.8 kg)(4.34 m/s)  

p_{1}=25.172 kg m/s (2)

And the momentum p_{2} of the ping-pong ball is:

p_{2}=m_{2}V_{2} (3)

If the momentum of the bowling ball is equal to the momentum of the ping-pong ball:

p_{1}=p_{2} (4)

m_{1}V_{1}=m_{2}V_{2} (5)

Isolating V_{2}:

V_{2}=\frac{m_{1}V_{1}}{m_{2}} (6)

V_{2}=\frac{25.172 kg m/s}{0.002214 kg} (7)

Finally:

V_{2}=11369.46 m/s

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Newton’s Thrid Law, which states that for every reaction there is an opposite reaction.
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6 0
3 years ago
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