The epicenter of an earthquake is located in a sandy desert region. seismic waves move outward from the epicenter. a rocky region is located a few hundred miles from the desert. the particles of matter are more closely packed in rock than they are in sand. which statement correctly describes the change in seismic waves as they move from sand to rock?

Jackson is designing a new heater, and he wants to experiment with different thermally conductive materials. which of these materials would be useful in conducting heat?

Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?