the bright and dark bands you see in a photograph of a double slit interference pattern represent a. the respective positions of destructive and constructive interference of light from the two sources. b. the respective positions of constructive and destructive interference of light from the two sources. c. the respective positions of the crests and the troughs of the light wave. d. an interference pattern that is not present unless it is produced by the camera lens. e. the respective positions of bright and dark particles of light. g
if the tennis ball and racket are in contact for 10 ms, what is the average force that the racket exerts on the ball?
describe how the colors of available light sources and the bending of light waves determine what we see test question
two point charges of 11 nc each are placed at two of the corners of an equilateral triangle with sides of length 30 cm. what is the electric potential at the unoccupied corner of the triangle?
the magnetic field perpendicular to a circular wire loop 6.0 cmcm in diameter is changed from 0.60 tt to -0.65 tt in 120 msms , where means the field points away from an observer and - toward the observer. part a calculate the induced emf.
4)a heat pump used to heat a house runs about one-third of the time. the house is losing heat at an average rate of 22000 kj/h. if the cop of the heat pump is 2.8, determine the power the heat pump draws when running.
a drum with negligible mass, 0.400 m in diameter, is attached to the motor shaft, and the power output of the motor is used to raise a weight hanging from a rope wrapped around the drum. how heavy a weight can the motor lift at constant speed?
jamarious wants to transfer energy by electrical current for a class project. he begins observing simple household examples of electrical currents moving energy. which answer choice is not an example of energy transferring through electricity?
8) how do we know when the solar system formed? usually we say that the solar system is 4.5 billion years old. to what does this age correspond?
a can of paint with a mass of 6 kg hangs from a rope. if the can is to be pulled up to the rooftop with an acceleration of 1 m/s2 , what must the tension in the rope be?
immediately after the switch is closed, the current through the battery is 2.8 a. how much energy is stored in the capacitor a very long time after the switch is closed?
what will be the direction of the heat flow when the metal is dropped into the water? how will the direction of heat flow affect the metal? how will it affect the water?
starting from rest a disk rotates about its central axis with constant angular acceleraiton. in 3.00 s it rotates 10.7 rad. during that time, whtat are the magnitdues of
alpha centauri is a famous star because it is one of the closest stars to earth (other than the sun of course). where would you look in the night sky for alpha centauri?
