That's 299,792,458 meters per second.
The statement "<span>The motion of a pendulum for which the maximum displacement from equilibrium does not change is an example of simple harmonic motion." is true.
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When boat is sunk into the liquid the net buoyancy on the boat is counterbalanced by weight of the boat
So here weight of the boat = Buoyancy force
let say boat is sunk by distance "h"
now we can say


now by above force balance equation we can write




so boat will sunk by total 5 mm distance
A scalar quantity is one in which there is no direction given.
30 Lbs would be the answer, since there is no indicator of direction.
If the machine works at a 70% efficiency it must complete 14,000 work out of the 20,000