A student conducts an experiment to test how the temperature of a ball affects its bounce height. The same ball is used for each test, and the ball is dropped from the same height each time. What is the independent variable?

the temperature of the ball

the type of ball

the drop height of the ball

the bounce height of the ball

C or B

Explanation:

it said that the ball was dropped from the same height but answer C could also be the answer because it said that it was the same ball

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards

there are no atoms