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Jobisdone [24]
2 years ago
7

A brick sits on the top of a hill with a gravitational potential energy of 245 J. To determine the gravitational potential of th

e brick, we would also need to know which one of the following
Physics
1 answer:
Bogdan [553]2 years ago
5 0

Answer:

The mass of the object, its acceleration due to gravity and the distance between the top of the hill and the ground level.

Explanation:

gravitational potential energy is the energy possessed by a body under influence of gravitational force by virtue of its position.

In order to determine the gravitational potential energy of the brick, we must know the mass (m) of the brick, its acceleration due to gravity (g) since it is acting under the influence of gravitational force and the distance between the top of the hill and the ground level. (The height).

Potential energy of a body is calculated as mass × acceleration due to gravity × height.

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Initial velocity, u = 4 m/s

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time, t = 1 min = 60 s

Let distance travelled = S

From equation of motion,

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4.00 kg glass coffee cup is 30.0°C at room temperature. It is then plunged into hot dishwater at a temperature of 90.0°C, as sho
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Answer:

Q = 200800 Joules.

Explanation:

Given the following data;

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Final temperature = 90.0°C

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To find the quantity of heat absorbed;

Heat capacity is given by the formula;

Q = mcdt

Where;

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dt represents the change in temperature.

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