Answer:
Any motion of a body in which gravity is the sole force acting on it is known as free fall. A body in free fall has no force acting on it under general relativity, where gravity is reduced to space-time curvature.
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Answer:
16.98 minutes
Explanation:
We are given that
Current,I=300 A
Area, A=0.250 square cm=
Length of wire,d=0.9 m
Number of charge carriers per unit volume=
We know that
Using the formula
<em>remember that
<u>loudness is directly proportional to the square of amplitude...
</u>so when amplitude is doubled ,,loudness increases four times..
when it is halved ,,,loudness is halved,,,</em>
Answer:
Thermodynamics is a branch of physics which deals with the energy and work of a system. It was born in the 19th century as scientists were first discovering how to build and operate steam engines. Thermodynamics deals only with the large scale response of a system which we can observe and measure in experiment.