A lead sinker of mass 300 grams and density of 11.3 g/cm3 is attached to the bottom of a wooden block of mass 30 grams and density 0.6 g/cm3. Calculate the apparent mass when both are submerged in water.

An electric current in a wire will push or pull on a permanent magnet. which statement best explains how an electric current creates an electromagnetic force on another magnet?

Two masses are connected by a rope that hangs over a pulley as shown below. the pulley is a uniform cylinder of radius 푅=0.381meters and mass 푀=3.1푘푔. initially 푚"is on the ground and 푚#rests 2.5 meters above the ground. if the system is released, use conservation of energy to determine the speed of 푚#just before it strikes the ground. assume the pulley bearing is frictionless.

Which sections of the heating curve illustrate this process?