The summer season is closely linked to which of the following? an equinox because the earth is very close to the sun an equinox because the earth is very far away from the sun a solstice because the earth is very close to the sun a solstice because the earth is very far away from the sun

Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.

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.

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)