You serve a volleyball with a mass of 2100g. The ball leaves your hand with a velocity of 30 m/s. Calculate

Which statement best describes copper? a. it has a low resistance and prevents charges from moving freely. b it has a high resistance and allows charges to move freely. c. it has a high resistance and prevents charges from moving freely. d. it has a low resistance and allows charges to move freely

In the first law of thermodynamics, triangle e=q-w, what does q stand for

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2