Which is an example of a compound?

A - gold

B-sand

C-iodine

D-water

True or false the higher the amplitude of the wave, the greater its intensity and the greater its loudness

A wave x meters long has a speed of y meters per second. The frequency of the wave is a. x/y hertz c. y · x hertz b. y/x hertz d. y + x hertz

Which is an example of a multicellular organism? A. gorilla B. amoeba C. bacterium D. paramecium

Which of the following substance is not formed by chemical bonds? A.) Mixture B.) Molecule C.) Compound D.) Pure substance

A bodybuilder lifts a 10 N weight a distance of 2.5 m. How much energy has the weight gained?

A 70 kg boy is sitting 3 m from the ground in a tree. what is his gravitational potential energy

Which of the following describes the flow of charges through a wire or a conductor?

What is the kinetic energy of a 2 kg snowball thrown through the air at 5 m/s?

A 5.00*105-kg subway train is brought to a stop from a speed of 0.500 m/s in 0.400 m by a large spring bumper at the end of its track. what is the force constant k of the spring

A moving object always has energy in its?