Two masses mass m and 2m are connected by a light rod, rotates about an axis at a distance L from the smaller mass. The rotating axis is perpendicular to the rod. Find the inertia of the system

How many neutrons does plutonium -196 with an atomic number of 78.

Which word expression describes how much to calculate pressure

Abatter hits a 0.140-kg baseball that was approaching him at 30 m/s and, as a result, the ball leaves the bat at 40 m/s in the reverse of its original direction. the ball remains in contact with the bat for 2.0 ms. what is the magnitude of the average force exerted by the bat on the ball?