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snow_tiger [21]
3 years ago
10

An 80 kg man is standing in an elevator which is moving down and slowing down at a rate of 2.0 m/s2. how hard must the floor of

the elevator push up on the man?
Physics
1 answer:
V125BC [204]3 years ago
8 0
F = mass * acceleration
F = 80kg * 2m/s^2
F = 160N
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A spherical shell of radius 1.4 m is placed in a uniform electric field with magnitude 5650 N/C. Find the total electric flux th
melamori03 [73]

Answer:

The total electric flux through the shell = 34804 N.m²/C

Explanation:

φ = E.A ........................... Equation 1

Where φ = total electric flux through the shell, E = Electric Field, A =  surface Area of the sphere

But,

A = 4πr² ................................... Equation 2

Where r = radius of the sphere.

Given: r = 1.4 m,

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Substituting these values into equation 2,

A = 3.143(1.4)²

A = 6.16 m²

Also Given: E = 5650 N/C,

Substituting into equation 1,

φ = 5650(6.16)

φ = 34804 N.m²/C

Thus the total electric flux through the shell = 34804 N.m²/C

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What is transmitted by all waves
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<h3><u>Answer;</u></h3>

Energy

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Arlecino [84]

Answer:

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Explanation:

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