At the gym, a man pulls a bar on a machine that works the muscles of the upper back. It takes him 0.5 seconds to raise 30 kilograms. of weights a vertical distance of 0.5 meters.
Which of these exerts the same power output? (Estimate g as 10 m/s2.)
es )
A)
Lifting 25 kilograms a distance of 2.4 meters in 2.0 seconds
B)
Lifting 45 kilograms a distance of 2.4 meters in 3.0 seconds
C)
leg pressing 45 kilograms a distance of 0.5 meters in 0.5 seconds
D)
bench pressing 30 kilograms a distance of 0.5 meter in 1.5 seconds
Conservation Laws
Regular Calc
Graphing Calle

Did the proton move into a region of higher potential or lower potential? did the proton move into a region of higher potential or lower potential? because the proton is a negative charge and it accelerates as it travels, it must be moving from a region of higher potential to a region of lower potential.because the proton is a negative charge and it accelerates as it travels, it must be moving from a region of lower potential to a region of higher potential.because the proton is a positive charge and it slows down as it travels, it must be moving from a region of higher potential to a region of lower potential.because the proton is a positive charge and it slows down as it travels, it must be moving from a region of lower potential to a region of higher potential.request answerpart bwhat was the potential difference that stopped the proton? express your answer with the appropriate units.î”v î” v = nothingnothingrequest answerpart cwhat was the initial kinetic energy of the proton, in electron volts? express your answer in electron volts.ki k i = nothing ev request answerprovide feedback

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

How much energy is supplied to each coulomb of charge that flows through a 12-v battery?