Cynthia and Marsha are standing still on top of a hill of the same height. Cynthia is a mass of 50 kg, and Marsha is a mass of 70 kg. Who has more potential energy? A) Cynthia
B) Marsha
C) They both have the same potential energy
D) The both have no potential energy

When a resistor with resistance r is connected to a 1.50-v flashlight battery, the resistor consumes 0.0625 w of electrical power. (throughout, assume that each battery has negligible internal resistance.) what power does the resistor consume if it is connected to a 12.6-v car battery? assume that r remains constant when the power consumption changes.

The ph is the a.independent variable b.the dependent variable c.control group

In a classical model of the hydrogen atom, the electron moves around the proton in a circular orbit of radius 0.053 nm. what is the electron's orbital frequency? what is the effective current of the electron?