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m_a_m_a [10]
3 years ago
10

An object on the surface of the earth has a force of gravity of 682 N. What is the objects mass?

Physics
1 answer:
valina [46]3 years ago
5 0
The object's mass is around 69.592 kg

F=mg
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3 years ago
An elevator car has a mass of 750 kg, and its three passengers have a combined mass of 135 kg. If the elevator and its passenger
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Answer:

The change in gravitational potential energy is -1.80x10⁵ J.

Explanation:

The change in gravitational potential energy is given by:

\Delta E_{p} = E_{p_{f}} - E_{p_{i}}

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For the car and the passengers we have:

\Delta E_{p} = m_{T}g(h_{f} - h_{i}) = (750 kg + 135 kg)9.81 m/s^{2}(0 - 20.7 m) = -1.80 \cdot 10^{5} J      

The minus sign is because when the elevator car and the passengers are up they have a bigger gravitational potential energy than when they are in the ground.

Therefore, the change in gravitational potential energy is -1.80x10⁵ J.

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3 0
3 years ago
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Answer:

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The sum of kinetic energy and potential energy within a system is called
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Answer:

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grigory [225]

Answer:

Half of its value prior to the initiation of the discharge

Explanation:

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