A charged particle moves through uniform electric and magnetic fields. Which is true about the magnetic force and the electric force acting on the particle? Neither force depends on the speed of the particle. Both forces depend on the speed of the particle. The magnetic force depends on the speed; the electric force does not depend on the speed. The electric force depends on the speed; the magnetic force does not depend on the speed.

Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?

Which articulations allow for greatest range of motion?

6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.