A machine produces 5000 joules of work in 5 seconds. how much power does the machine produce?

When an explanation to a problem is accepted as always true, it is a. law theory hypothesis fact?

What is the mass of an atom that has 11 protons, 16 neutrons and 11electrons? a. 11 b. 22 c. 27 d. 38

What is the speed of the unknown nucleus immediately after such a collision?

Which is more likely to hurt: being stepped on by a 200 lb man wearing loafers or being stepped on by a 100 lb woman wearing high heels?

Types of mechanical waves include transverse waves. longitudinal waves. surface waves. all of the above.

A proton accelerates from rest in a uniform electric field of 610 N/C. At some later time, its speed is 1.4 106 m/s. (a) Find the magnitude of the acceleration of the proton.

What does the law of conservation of matter state?

Heat flows due to: Select one: a. conduction b. convection c. radiation d. all of the above

A mine elevator is supported by a single steel cable 0.0125 m in diameter. The total mass of the elevator cage and occupants is 6450 kg. By how much does the cable stretch when the elevator hangs by 362 m of cable? (Neglect the mass of the cable.

Express the displacement Δy of an object travelling with acceleration a during a time period Δt that has an initial velocity vi.