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deff fn [24]
3 years ago
8

A bumper has a non negligible mass. After a collision with an ideal spring, the spring is compressed to a distance of 90% of the

value of its distance when the bumper's mass was negligible. Give a reasonable explanation for this decrease.
Physics
1 answer:
Y_Kistochka [10]3 years ago
3 0
Deacceleration causing reverse of speed impact on the body of the frame causing reverse of shockwave.
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A ball has a mass of 0.1 kg and an initial velocity of 20 m/s. The ball is given an acceleration of 30 m/s2 for 5 s. What is the
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Answer:

acceleration = v-u /t

30- 20/5

= 10/5 = 2m/sec²

Force = mass * acceleration

Force = 0.1 * 2

Force = 0.2 Newton

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2 years ago
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What is the suitable condition for the superconductivity and high resista (a) Weak phonon-phonon interactions (b) No interaction
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Answer:

(d) A strong electron-phonon interaction

Explanation:

Superconductivity -

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An insurance company wants people to avoid risks because if the person meets with an accsident the expense of the medicines and treatment should be covered by the insurance company.
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Costal residents must do many things to prepare for hurricanes
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The answer is A it’s more safer that way
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A cork has weight mg and density 25% of water’s density. A string is tied around the cork and attached to the bottom of a water-
yuradex [85]

Answer:

Explanation:

Given

Density of Cork \rho _c=0.25\rho _{water}

Considering V be the volume of Cork

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we can write as

\rho _{water}Vg-\rho _Cvg-T=0

where T=tension

Thus Tension T is

T=Vg(\rho _{water}-\rho _c)

Taking \rho _c common

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T=mg(\frac{\rho _{water}}{\rho _c}-1)

T=mg(4-1)

T=3mg

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3 years ago
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