Which of the following actions will reduce the current induced in a wire by a magnetic field?
A. Increasing the length of the wire in the circuit
B. Moving the magnet more quickly
C. Wrapping the wire tighter around the magnet
D. Decreasing the number of coils in the wire

Match the atomic particles with their characteristics. 1. made of two protons and two neutrons neutron 2. similar to an electron; positive charge neutrino 3. orbits nucleus; negative charge positron 4. bundle of energy; zero charge proton 5. found in nucleus; positive charge meson 6. very unstable; +, -, or zero charge gamma 7. found in nucleus; zero charge electron 8. negative particle; negative charge beta 9. atomic energy converted to mass alpha

Aball bearing at 220.0 °c is dropped into a cup containing 250.0 g of water at 20.0 °c. the water and ball bearing come to a temperature of 30.0 °c. what is the heat capacity of the ball bearing in j/°c? (hint: how are the algebraic signs of q related for the ball bearing and the water? )

Heena wants to measure the volume of a ball that is 24 cm across. how should she set up her equation?