An ice cube is put into a heated pan. What will most likely happen to the molecules in the ice as the ice is heated 1. the molecules will begin to move slower
2.the molecules will begin to move faster
3. the molecules will begin to increase in density
4. the molecules will begin to condense in the air

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2 the molecules will move faster

Explanation:

the heat from the pay gives the molecules now energy causing the to spread out and move faster

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

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