What is the potential energy of a 0.5 kg object sitting on a shelf that is 1.5 meters high?

Refraction occurs when a wave strikes an object and bounces off. True False

If a flea can jump straight up to a height of 21.1 cm, what is its initial speed as it leaves the ground, neglecting air resistance?

Which technique uses a porous barrier to separate a solid from a liquid? a. Chromatography b. Crystallization c. Distillation d. Filtration

Two trains traveling on parallel tracks are going toward each other from a distance of 552 miles. If the freight train is moving at 38 mph and the passenger train is moving at 54 mph, when will the trains pass each other?

Velocity is a vector quantity that has both magnitude and direction using complete sentences describe the objects velocity comment on both magnitude and the direction

Along with an alpha particle what other product is produced in the alpha decay of americium-241

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.