The amount of heat energy required to raise the temperature of a unit mass of a material one degree is: A. absolute zero. B. a Joule. C. a Btu. D. its heat capacity

Two liquids, 1 and 2, are in equilbrium in a U-tube that isopen at both ends. The liquids do not mix, and liquid 1 restson top of liquid 2.

An initially stationary electron is accelerated by a uniform 640 N/C Electric Field. a) Calculate the kinetic energy of the electron after it has traveled 15 cm in a direction parallel to this field.

When distances were carefully measured from Earth to globular clusters above and below the Milky Way plane (where our view of them is not obscured by interstellar dust and gas), their distribution was found to be

ll of mass m is thrown vertically upward with an initial speed of v0. It experiences a force of air resistance given by F = - kv, where k is a positive constant. The positive direction for all vector quantities is upward.

Suppose an electron and a proton move at the same speed. which particle has a longer de broglie wavelength? suppose an electron and a proton move at the same speed.

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