Find the center of mass of each of the following: (a) A thin wire bent into the form of a three-sided, block-shaped "u" with each segment of equal length b (b) A quadrant of a uniform circular lamina of radius b (e) The area bounded by parabola y =rib and the line y =b (d) The volume boumded by paraboloid of revolution z = (r*+y)/b and the plane z=b (e) A solid uniform right circular cone of height b​

spare some change and give it to the poor

explanation:

plz : ((

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.