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iragen [17]
2 years ago
8

Which of the following is not an example of work being done on an object?

Physics
2 answers:
IrinaVladis [17]2 years ago
6 0

Answer:

Lifting a bag of groceries

Gekata [30.6K]2 years ago
4 0

Answer:

paddeling a canoe down a river :D or throwing a ball across a field

Explanation:

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I'm pretty sure it is open more
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Two equally charged tiny spheres of mass 1.0 g are placed 2.0 cm apart. When released, they begin to accelerate away from each o
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Answer:

The magnitude of the charge on each sphere is 0.135 μC

Explanation:

Given that,

Mass = 1.0

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Acceleration = 414 m/s²

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Using newton's second law

F= ma

a=\dfrac{F}{m}

Put the value of F

a=\dfrac{kq^2}{mr^2}

Put the value into the formula

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q^2=\dfrac{414\times1.0\times10^{-3}\times(2.0\times10^{-2})^2}{9\times10^{9}}

q^2=1.84\times10^{-14}

q=0.135\times10^{-6}\ C

q=0.135\ \mu C

Hence, The magnitude of the charge on each sphere is 0.135μC.

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3 years ago
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