The power from a car engine is the power of a bicycle because a car engine does the same amount of work in time. raul and katrina equally shared a frozen lunch but heated each portion in two different microwaves. katrina's lunch was warm in one minute while raul's lunch took two minutes. the power used by raul's microwave must be the power used by katrina's because his microwave took time to do the same amount of work.

more than, less

less than, more

grav force prop 1/r squared 2r all squared is 4rsquared 1/4rsquared quartered

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