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

Car is travelling 100 km/h west and comes to a stop in 3 min. what is the car's acceleration?

How are surface winds formed?

Why do sound waves move faster through the ground than through the air? A. Particles of matter are packed more loosely in the ground than in the air. B. Particles of matter are packed more tightly in the ground than in the air. C.

Which one of the following does not accurately describe the universal gravitational law? (a) gravitational forces is proportional to the product of the two masses.

What is an ideal diode? a. The ideal diode acts as an open circuit for forward currents and as a short circuit with reverse voltage applied. b. The ideal diode acts as an open circuit regardless of forward voltage or reverse voltage applied. c.

The average kinetic energy of the particles in a sample of matter is expressed as

Which waves in the electronic spectrum are considered los energy waves?

The leader of a bicycle race is traveling with a constant velocity of + 12.60 m/s and is 11.4 m ahead of the second-place cyclist. the second-place cyclist has a velocity of + 9.20 m/s and an acceleration of + 1.50 m/s2.

A 50kg child on a skateboard experiences a 75n force as shown what is the expected acceleration of the child?

How many significant figures does the value 0.080 have? A. 1 B. 2 C. 3 D. 4