10 points Which statement describes surface waves?
They arrive before S waves.
They travel faster than P waves.
They are produced by P and S waves.
They travel deep below Earth’s surface.

Asun-sized star will spend most of its lifetime as a: white dwarf red giant protostar main-sequence star

The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.

Why do astronauts in the space shuttle weigh less?