What is magma? a. the molten mixture of rock-forming substances, gases, and water from the mantle.. c. hardened lava on the surface of the earth. b. liquid rock that reaches the surface. d. all of the above select the best answer from the choices provided

When you turn on a battery-operated device, an electrical circuit is

In all trials, the magnitude of the final velocity for g1 + g2 was less than the magnitude of any initial velocity. as mass increased, what happened to the velocity? the velocity decreased. the velocity increased. the velocity of g1 + g2 could not be measured. the velocity was not affected by the mass increase.

Within a pendulum, as potential energy decreases, energy increases. a. heat b. kinetic c. frictional d. gravitational