Physics, 11.02.2020 10:59 marwaalsaidi

When light shines on a metal surface, the maximum energies of emitted electrons:

1. vary with the intensity of the light
2. vary with the frequency of the light
3. vary with the speed of the light
4. are random

Answers: 2

Show answers

Another question on Physics

Physics, 22.06.2019 03:30

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

Answers: 1

Answer

Physics, 22.06.2019 14:40

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?

Answers: 3

Answer

Physics, 22.06.2019 16:40

Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward

Answers: 1

Answer

Physics, 22.06.2019 17:20

The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b.b. at twice the distance, the magnitude of the field is 2b.c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.

Answers: 3

Answer

You know the right answer?

When light shines on a metal surface, the maximum energies of emitted electrons:

1. vary...

Questions