Both the moon and the sun influence the tides on earth. the moon has a much greater influence though. why is that? a) because the sun is much less dense b) because the sun is gaseous, not solid c) because the sun is so far away from earth d) because the sun is less massive than the moon

What object a collides with object b and bounces back its final momentum is?

Suppose a wire with a current is pushed upward by a magnetic field. how would the wire move if the direction of the current reversed? explain your answer.

Consider a one meter long horizontal pipe with a constant 100 cm^2 cross sectional area. water flows rightward into the pipe at x = 0 with flow velocity 02m/sec at every point within the pipe intake area. at x=1, the rightward flow rate is 0.192 m/sec. assume the water is a conserved quantity in the pipe, so there must be a leak (a sink) somewhere in the pipe. 1. compute net volumetric flow of the source if the system to be in equilibrium. 2. now assume the pipe in the problem has no leaks. compute the net volumetric rate of change for the system.