Abeam of light is propagating in the x direction. the electric-field vector (a) can oscillate in any arbitrary direction in space. (b) must oscillate in the z direction (c) must oscillate in the yz plane (d) must oscillate in the x direction. (e) must have a steady component in the r direction.

Aball tossed vertically upward from the ground next to a building passes the bottom of a window 1.8 s after being tossed and passes the top of the window 0.20 s later. the window is 2.0 m high from top to bottom. what was the ball's initial velocity? the unit vector j^ is directed upward. how far is the bottom of the window from the launch position? how high does the ball rise above the launch position?

Apersons beliefs and general outlook, which act like filters on the information they receive are called ?

Aheavy piece of hanging sculpture is suspended by a90-cm-long, 5.0 g steel wire. when the wind blows hard, the wire hums at its fundamental frequency of 80hz. what is the mass of the sculpture?