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3 years ago

What is the impulse of a 131g baseball when it strikes a batter at 57 m/s

Physics

1 answer:

lianna [129]3 years ago

8 0

Implulse=m(delta v)

Impulse=m(vf-vi)

Impulse=0.131(57)=7.467 (Js)

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An airplane has an average speed of 740 mph

crimeas [40]

Answer:

2590

Explanation:

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3 years ago

Julie throws a ball to her friend Sarah. The ball leaves Julie's hand a distance 1.5 meters above the ground with an initial spe

sattari [20]

I can't make sense of this question. Julie's throwing the ball, so it's leaving her rather than arriving at her ???

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2 years ago

A boat is able to move through still water at 20 m/s. It makes a round trip to a town 3.0 km upstream. If the river flows at 5m/

Salsk061 [2.6K]

Answer:

Option e) 320 s

Explanation:

Here, distance = 3.0 km = 3000 m

The velocity of boat when it is going upstream;

Upstream velocity = velocity of boat in still water - velocity of river flow

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So, total time (t) = $t_{1}+t_{2}=200s+120 s=320s$

Option E is the correct answer.

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3 years ago

Read 2 more answers

Question 4. A tuning fork ‘A’ produces 6 beats/sec with another fork ‘B’ of un-known frequency. On

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Clever problem.

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The natural frequency of Fork-B, after it gets cleaned up and returns to its normal condition, is 262 Hz. While it was loaded with wax, it was 261 Hz.

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3 years ago

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Radiometric dating?
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3 years ago