The core of a dying massive star of 25 solar masses might collapse directly into a black hole in what is known as supernova.

d) the number of neutrons plus the number of protons

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

2.6 and i can kick good lol