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Murrr4er [49]
3 years ago
10

How can Newton's laws be applied to protect a smartphone screen during a collision?

Physics
1 answer:
Sonja [21]3 years ago
7 0

smartphones break due to forces acting on the material.

force causes material to deform.

material is often brittle and cracks due to a limit on hardness / electricity in screens.

newton's 2nd law states

force = DV / DT

to help phones we must slow down change in momentum to reduce the force

thus we must use some form of damping in the form of a case .

the case is typically able to deform and rubber is elastic converting the kinetic energy to heat as it deforms instead of transferring it through the screen.

therefore the change in velocity occurs over a longer time. therefore the impulse decreases

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Waves; wavelength; electromagnetic energy; ultraviolet light.

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3 years ago
Could the half of the moon that faces the earth ever be completely dark in any of these diagrams
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3 years ago
Light bulb 1 operates with a filament temperature of 2700 K whereas light bulb 2 has a filament temperature of 2100 K. Both fila
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Answer:

0.3659

Explanation:

The power (p) is given as:

P = AeσT⁴

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e = transmittivity

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since both the bulbs radiate same power

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Where, 1 denotes the bulb 1

2 denotes the bulb 2

thus,

A₁e₁σT₁⁴ = A₂e₂σT₂⁴

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or

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substituting the values in the above question we get

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or

\frac{A_1}{A_2} }=0.3659

6 0
3 years ago
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