5.the motion of the piston of an automobile engine is approximately shm. a) if the stroke of an engine (twice the amplitude) is 0.100m and the engine runs at 3500rev/min., compute the acceleration of the piston at the endpoints of its stroke. b) if the piston has a mass of 0.450kg, what net force must be exerted on it at this point? c) what are the speed and kinetic energy of the piston at the midpoint of its stroke? d) what average power is required to accelerate the piston from rest to the speed found in c)?

Part a)

Part b)

Part c)

So kinetic energy is given as

Part d)

Explanation:

Part a)

Amplitude of motion is given as

angular frequency is given as

Now for acceleration of piston we have

Part b)

Net force on the piston is given as

Part c)

Speed of the piston at the mean position is given as

So kinetic energy is given as

Part d)

Average power is given as ratio of work done and time

here we know that

So power is given as

hi,

what occurs during a solar eclipse?

there are small tides across earth.

the moon is between earth and the sun.

p.s. im not sure if the first answer is correct because during a solar ecliphse there are spring tides and i dont know if they are the same.