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3 years ago

Freezing and thawing of water can cause creep,which is

Physics

2 answers:

aliya0001 [1]3 years ago

5 0

slow downhill movement

ipn [44]3 years ago

5 0

Creep:
(of a thing) move very slowly at an inexorably steady pace.
"the fog was creeping up from the marsh"
(of a plant) grow along the ground or other surface by means of extending stems or branches.
"tufts of fine leaves grow on creeping rhizomes"
(of a plastic solid) undergo gradual deformation under stress.
Source: Google definitions

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Which of the following statements can be inferred given the food web shown above? A. Energy flows from consumers to producers wi

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3 years ago

Read 2 more answers

A baseball, which has a mass of 0.685 kg., is moving with a velocity of 38.0 m/s when it contacts the baseball bat duringwhich t

Evgen [1.6K]

Answers:

a) $65.075 kgm/s$

b) $10.526 s$

c) $61.82 N$

Explanation:

<h3>a) Impulse delivered to the ball</h3>

According to the Impulse-Momentum theorem we have the following:

$I=\Delta p=p_{2}-p_{1}$ (1)

Where:

$I$ is the impulse

$\Delta p$ is the change in momentum

$p_{2}=mV_{2}$ is the final momentum of the ball with mass $m=0.685 kg$ and final velocity (to the right) $V_{2}=57 m/s$

$p_{1}=mV_{1}$ is the initial momentum of the ball with initial velocity (to the left) $V_{1}=-38 m/s$

So:

$I=\Delta p=mV_{2}-mV_{1}$ (2)

$I=\Delta p=m(V_{2}-V_{1})$ (3)

$I=\Delta p=0.685 kg (57 m/s-(-38 m/s))$ (4)

$I=\Delta p=65.075 kg m/s$ (5)

This time can be calculated by the following equations, taking into account the ball undergoes a maximum compression of approximately $1.0 cm=0.01 m$ :