A weightlifter lifts a 1000 newton barbell above his head from the floor to a height of 2.5 meters. he holds the barbell there for 5 seconds. how much work does he do during the 5 second interval?

What is power? A) Power is the rate at which energy is used up. B) Power is the rate at which work is done. C) Power is the amount of work that is done. D) Power is force multiplied by distance.

Where do clouds form? Select three options. at the ground in the upper atmosphere near the Earth's surface where the air has very low humidity where the atmosphere contains few particles

How to convert 45.77 cubic inches to cubic centimeters

Do you think Pluto should be considered a planet? Why or why not?

A very long, straight wire has charge per unit length 3.50*10^-10 C/m. At what distance from the wire is the electricfield magnitude equal to 2.90 N/C?

Which universal force acts on protons and neutrons in an atom's nucleus?

How many turns are in the secondary coil of a step up transformer that increases voltage from 30 V to 150 V and has seven turns in the primary coil?

What is a nuclear bulge? a) The bulging corner of a spiral galaxy consisting of gas in the shape of a spiral sphere that circles a galaxy b) The bulging center of a spiral galaxy consisting of debris in the shape of a flattened sphere that circles a

Your friend of mass 50 kg can just barely float in fresh water. Calculate her approximate volume.

A flashlight beam strikes the surface of a pane of glass (n = 1.50) at a 61° angle to the normal. what is the angle of refraction?