The change in pitch of a train's horn as it passes while you are standing still can be explained by

a. sympathetic vibration.

b. ultrasonic vibrations.

c. resonance.

d. the Doppler effect.

An alpha particle travels at a velocity of magnitude 550 m/s through a uniform magnetic field of magnitude 0.045T. (An alpha particle has a charge of charge of + 3.2 x 10-19 C and a mass 6.

Which list accurately identifies the hierarchy of space from smallest to largest? Universe, solar system, galaxy, planet Galaxy, solar system, universe, planet Moon, solar system, galaxy, universe Universe, galaxy, solar system, moon

A rectangular garden has a perimeter of 54 feet. it's length is 3 less than twice its width. write and solve an equation to solve for the gardens dimensions

Which best compares freezing and condensation? a. Both involve changes between liquids and gases. b. Both involve changes between gases and solids. c. Both involve the release of heat. d. Both involve the absorption of heat.

A plane comes out of a power dive, turning upward in a curve whose center of curvature is 1300 m above the plane. The plane's speed is 260 m/s. a. Calculate the upward force of the seat cushion on the 100 kg pilot of the plane. b.

What kinds of space and matter can light travel through?

A capacitor is connected to a power source and begins charging. What causes the capacitor to stop charging while it is still connected to the power source?

Do the data for the second part of the experiment support or refute the second hypothesis? Be sure to explain your answer

The capacitance of a parallel-plate capacitor does not depend on: area of the plates medium between the plates distance between the plates the material of which the plates are made

Which sequence lists types of material in order from least conductive to most conductive