All matter is composed of atoms, which are, in turn, composed mostly of empty space. why is it not possible to walk through a wall or to put your hand right through your desk?

The force on a current-carrying wire is maximum when the current is moving at what angle to the magnetic field

What is difference between static electricity and current elecity ... ?

Calculate the average speed of a gazelle that runs 140 meters in 5.0 seconds.

The ability to pick up small objects, to stack objects, and to carry objects appears first during which time period? a. Twelve to eighteen months b. After two years c. Birth to six months d. Six to twelve months

What are examples of scalar and vector quantity?

What does Newton's second law of motion say

Two sinusoidal waves are moving through a medium in the positive x-direction, both having amplitudes of 7.00 cm, a wave number of k=3.00m-1, an angular frequency of ω=2.50s-1, and a period of 6.00 s, but one has a phase shift of an angle ϕ=π12rad.

Which season does the Southern Hemisphere experience when it is tilted toward the sun? A. winter B. summer C. spring D. autumn

For an ideal fluid flowing through a horizontal pipe, Bernoulli's principle and the continuity equation state that the pressure within the pipe does which of the following? (Assume measurements are taken along the pipe in the direction of fluid flow.

A bowling ball has a mass of 40kg and is kicked with a force of 10 N. What is it's acceleration