Which phrase describes radiation? A) The process in which energy is released by molecules breaking apart.
B) The process in which energy is emitted by one object, transmitted though space, and absorbed by another.
C) Transfer of heat by the actual movement of warmed matter.
D) Transfer of heat between two objects that are touching.

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

conservation of mass

mass before something happens = mass afterwards

yeah the answer is mean