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3 years ago

What is the potential energy at point e when the total mechanical energy is 4900 for the 100 kg moving at 2 m/ s

Physics

1 answer:

Leto [7]3 years ago

4 0

Answer:

B. 4700 J

Explanation:

Given the following data;

Mechanical energy = 4900J

Mass = 100kg

Velocity = 2m/s

To find the potential energy;

Mechanical energy = kinetic energy + potential energy

First of all, we would determine the kinetic energy of the object;

K.E = ½mv²

K.E = ½*100*2²

K.E = 50*4

K.E = 200 J

Substituting into the equation, we have;

4900 = 200 + P.E

P.E = 4900 - 200

P.E = 4700 Joules

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4 years ago

Read 2 more answers

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kupik [55]

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Given data

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$\frac{I_{1} }{I_{2}}=\frac{(r_{2})^{2} }{(r_{1})^{2} }\\I_{1} =I_{2}(\frac{(r_{2})^{2} }{(r_{1})^{2} })\\I_{1}=(2.0W/m^{2} )(\frac{(2m)^{2} }{(50m)^{2} })\\I_{1}=3.2*10^{-3}W/m^{2}$

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The Sound Intensity level β is calculated as follow

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3 years ago

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ch4aika [34]

Answer:

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Minchanka [31]

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Learn more about white dwarfs here: brainly.com/question/24873876

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2 years ago