A60.0 kg person walks from the ground to the roof of a 74.8 m tall building. how much potential energy doed the person have at the top?

The passing of heat through a material while the material itself stays in place. a. radiation b. conduction c. convection

The charge on an electron is 1.60218 × 10−19 c and its mass is 9.10939 × 10−31 kg. how strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.5 cm? answer in units of t.

If you place a magnet under a clear dish, and sprinkle iron fillings over it, above what part of the magnet will most of the fillings gather