Answer:
169.98 m
Explanation:
= Thermal coefficient of marble =
= Initial length = 170 m
= Change in temperature = (-10-35)°C
Change in length is given by
The height on the given day will be
An arrow is shot into a falling apple. What type of collision is this an example of?
2 answers:
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125 W is the power output of this machine.
Answer:
Explanation:
Power is defined as the amount of work done on the system to move that system from its original state within the given time interval. So it can be determined by the ratio of work done with time interval. As work done is the measure of force required to move a system to a certain distance. Work done is calculated as product of force with displacement.
So in the present case, the force is given as 100 N, the displacement is given as 5 m and the time is given as 4 s, then power is
As Work done = Force acting on the machine × Displacement
So
Power = =125 W
So, 125 W is the power output of this machine.