Suppose you attempt to break a cubic salt crystal, 1.75 mm on a side, by applying forces f and −f perpendicular to opposite sides of the cube, trying to pull it apart. how great would f have to be to overcome the attractive forces of all the ions in a 3.0625 mm2 plane of the crystal? (be sure to type in units! hint: how many ions are in one side? a plane? how much force does each ion apply to each other? )

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

get the total number of pieces of fruit and divide it by 4 to get the average. the result is the answer to the problem. 14 total number of fruits and there are 4 members. 14 divided by 4 is equals to 3.5.