3 years ago

When a can is crushed did it undergo a physical change

Physics

1 answer:

brilliants [131]3 years ago

4 0

Because even though the object got crush and misshape it still has the same identity. the identity never change

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The four wheels of a car are connected to the car's body by spring assemblies that let the wheels move up and down over bumps an

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Answer: $k=55.590 KN/m$

Explanation:

Given

mass of person $\left ( m\right )$ =68 kg

car dips about 1.2 cm

We know

F=kx

Where k=combined spring constant

mg=kx

$k=\frac{mg}{x}$

$k=\frac{68\times 9.81}{1.2\time 10^{-2}}$

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3 years ago

Complete the sentence below using one of the following

astra-53 [7]

Answer:

equilibrium

Explanation:

acceleration will remain constant

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2 years ago

Slow-twitch muscles are needed for what?

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Slow-twitch muscles<span> help enable long-endurance feats such as distance running, while fast-</span>twitch muscles<span> fatigue faster but are used in powerful bursts of movements like sprinting. Hope that this can help!!!</span>

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3 years ago

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Anna35 [415]

Water boilingis the answer

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3 years ago

A 1.5kg cart moves along a track at 0.20m/s until it hits a fixed bumper at the end of the track. Find the average force exerted

DochEvi [55]

Answer:

Net force will be 4.875 N

Explanation:

We have given mass of the cart m = 1.5 kg

Initial velocity of the cart = 0.2 m/sec

And final velocity of the car = - 0.125 m/sec ( Negative direction is due to opposite direction )

Instant of time $\Delta t=0.1sec$

Change in momentum is given by

$\Delta P=1.5\times (0.2-(-0.125))=1.5\times 0.325=0.4875kgm/sec$

Now force is given by

$F=\frac{\Delta P}{\Delta t}=\frac{0.4875}{0.1}=4.875N$

Net force will be 4.875 N

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2 years ago