When two objects are at the same temperature and no heat flows this is called?
2 answers:
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Answer:
Explanation:
The gravitational potential energy of an object is the energy possessed by the object due to its location in the gravitational field.
This energy is always measured as a difference with respect a "zero level" - generally taken as the ground level.
Therefore, it generally makes more sense to measure the change in gravitational potential energy of an object when its height is changed; this is given by:
where:
m is the mass of the object
is the acceleration due to gravity
is the change in height of the object
The moon clock is A) (9.8/1.6)h compared to 1 hour on Earth
Explanation:
The period of a simple pendulum is given by the equation
where
L is the length of the pendulum
g is the acceleration of gravity
In this problem, we want to compare the period of the pendulum on Earth with its period on the Moon. The period of the pendulum on Earth is
where
is the acceleration of gravity on Earth
The period of the pendulum on the Moon is
where
is the acceleration of gravity on the Moon
Calculating the ratio of the period on the Moon to the period on the Earth, we find
Therefore, for every hour interval on Earth, the Moon clock will display a time of
A) (9.8/1.6)h
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