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Simora [160]
3 years ago
15

A 36,287 kg truck has a momentum of 907,175 kg • . What is the truck’s velocity

Physics
2 answers:
yuradex [85]3 years ago
4 0

Momentum = (mass) x (speed) .

So 907,175 kg-m/s = (36,287 kg) x (speed)

Divide each side by (36,287 kg):

Speed = (907,175 kg-m/s) / (36,287 kg)

<em>Speed = 25 m/s</em>

That's the truck's <em>speed</em>. We can't do anything that involves the truck's <em>velocity,</em> because we don't know what direction the truck is moving.  

Serggg [28]3 years ago
4 0

The answer would be 25 m/s, I know because I just did it and got it right.

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A spring stretches by 0.0208 m when a 3.39-kg object is suspended from its end. How much mass should be attached to this spring
sashaice [31]

Answer:

COMPLETE QUESTION

A spring stretches by 0.018 m when a 2.8-kg object is suspended from its end. How much mass should be attached to this spring so that its frequency of vibration is f = 3.0 Hz?

Explanation:

Given that,

Extension of spring

x = 0.0208m

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Additional mass to have a frequency f

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k = F/x

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k = 1598.84 N/m

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f = ½π√k/m

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f² = ¼π² •(k/m

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Then, m4π²f² = k

So, m = k/(4π²f²)

So, this is the general formula,

Then let use the frequency above

f = 3Hz

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m = 4.5 kg

4 0
3 years ago
How does Mercury's close proximity to the sun and thin atmosphere affect its ability to maintain liquid water
alekssr [168]

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Kipish [7]

Answer:

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I hope this helps you

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Novay_Z [31]

Answer:

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Explanation:

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