In which direction do seismic waves travel from their point of origin? a. north to south only b. toward the equator only c. in all directions d. inward, toward earth’s core

Calculate a pendulums frequency of oscillation (in hz) if the pendulum completes one cycle in 0.5s.

Four 5-gram blocks of metal are sitting out in the sun and absorb the same amount of heat energy. use the following specific heat capacity data to determine which block will increase its temperature the most.

When and why was the metric system invented?