German philosopher and physicist Gustav Theodor Fechner founded psychophysics.

True or False

If a solid is 180g what is the density

If a car is traveling at 35 mph how far will the car travel in 2.5 hours

Jerusha and anavi are working very hard to tend their organic veggie garden when jerusha sees a bunny nibbling on a tender letuce leaf. In a fit of rage, anavi chases the fluffy little rabbit across the yard.

1. A 1,000-kg car has 50,000 joules of kinetic energy. What is its speed?

A satellite orbits earth in a circular orbit. Does Earth's gravity do work on the satellite? Explain.

A small kid sits on a bike (Anita). A bigger and stronger person (Jamy) pushing the kid so that the kid starts speeding up. (neglect friction). Mark all correct statements about the forces between them. A.

A ___ is awarded to the opposing team when that team violently or dangerously charges a opponent. (in soccer) A) Goalie kick B) Indirect kick C) Direct kick D) Throw in

Which has greater potential energy, a book on the top shelf of a bookcase or a book on the bottom shelf? Why?

Fusion occurs with atoms of elements less massive than a. iron. b. helium. c. calcium. d. uranium.

Which describes what happens when fuel is ignited in a heat engine? A. Chemical energy is converted into thermal energy B. Thermal energy is converted into solar energy. C. Solar energy is converted into chemical energy D.