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SVETLANKA909090 [29]
3 years ago
5

When is the only time that an object has no gravitational potential energy

Physics
2 answers:
Rom4ik [11]3 years ago
5 0
When it is not moving or on the ground
Aleksandr [31]3 years ago
4 0

Answer:

The gravitation potential energy of an object will be zero when it will be at ground.

Explanation:

The energy of an object due to its position is known as gravitational potential energy. Mathematically, it can be written as:

                                        P.E = mgh          ………… (i)

Equation (i) shows that P.E depends upon weight and height of the object above the ground. If h = 0 then,  

                                         P.E = mg(0)

                                           P.E = 0  

Hence, when the object will be at ground, its potential energy will be zero.

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Which of the following is not an example of a physical change?
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Cutting a string in half because

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3 years ago
In a parallel circuit, if one connection is broken
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Why polarization does not occur in dry cell?​
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Answer:

Manganese oxide prevents polarisation in dry cells. - Polarization is a defect that occurs in simple electric cells due to the accumulation of hydrogen gas around the positive electrode. ... - MnO2 reacts with H2 and forms water as byproduct, so depolarization doesn't occur.

7 0
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Part B
Licemer1 [7]

The number of kilowatts used by an individual to operate his appliances is determined as 12.1 kWh.

<h3>Average daily power consumption</h3>

The average daily power consumption is the amount of electric energy consumed by an individual on a daily rate.

The average daily power consumption of individuals in USA is 12,100 W-hr.

<h3>Converting watts to kilowatts</h3>

E = 12,100 Whr/1000

E = 12.1 kWh

Thus, the number of kilowatts used by an individual to operate his appliances is determined as 12.1 kWh.

Learn  more about power here: brainly.com/question/13881533

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5 0
2 years ago
From the circuit above, predict which bulb (or bulbs) will be the brightest. Why do you think that?
inysia [295]

Answer:

the middle

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the one on right has more bulbs

7 0
3 years ago
Read 2 more answers
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