Two students take turns lifting an object. each student lifts the object from the ground to the same height. the first student lifts the object in one third the time it takes the second student to lift the object. which of the following best compares the power of each student ? a the first student uses one third ad much power as the second student

b the first student uses the same amount of power as the second student

c the first student uses three times as much power as the seconds student

d the first student uses nine times as much power as the second student

If an object with an initial temperature of 300 k increases its temperature by 1°c every minute, by how many degrees fahrenheit will its temperature have increased in 10 minutes? (a) 6°f (b) 10°f (c) 18°f (d) 30°f

The discovery of the electron as a subatomic particle was a result of

It may seem strange that the selected velocity does not depend on either the mass or the charge of the particle. (for example, would the velocity of a neutral particle be selected by passage through this device? ) the explanation of this is that the mass and the charge control the resolution of the device--particles with the wrong velocity will be accelerated away from the straight line and will not pass through the exit slit. if the acceleration depends strongly on the velocity, then particles with just slightly wrong velocities will feel a substantial transverse acceleration and will not exit the selector. because the acc