Power in physics is: how very difficult the work feels in your body.
how much total energy is used.
how fast a mass is moved.
how much muscle you have.

frequency or wavelenth of em radiation in a vacuum

false br

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

i'm on my way to history not a mistory.