there are two uncharged objects, A and B. some electrons move from A to B. How does the charge of two objects change?

The speed of a light wave is dependent upon the properties of the medium. Light travels fastest through a vacuum; slowest through solids. In the case of electromagnetic waves, the speed of the wave depends upon the optical density of that material.

Radiant energy has properties similar to

A pelican is flying with a momentum of 50 kg. m. m/s. If it is flying 5 m/s east, what is the mass of the pelican?

An elevator starts from rest with a constant upward acceleration and moves 1 m in the first 1.6 s. A passenger in the elevator is holding a 4.2 kg bundle at the end of a vertical cord. What is the tension in the cord as the elevator accelerates?

Why will a set of stars appear at a different angle to us at different times of the year? A. because we change location as Earth orbits the sun B. because the stars move back and forth across the sky C. because of distortions by gravity ... ?

Solve: 12 > 3 (z+8)

What is another word for consumer? autotroph heterotroph producer decomposer

An Unfair Race This applet shows the results of releasing a frictionless block and a rolling disk with equal masses from the top of identical inclined planes.

What are glacial grooves?

What perspective of dream interpretation is being offered? A. Freudian B. activation-synthesis C. Jungian D. motivation Not D