The atmospheric temperature decreases when snow starts melting because the snow releases thermal energy from the atmosphere to melt. true or false?

FALSE

Explanation:

When snow melt in the form of liquid then in this type of phase transformation we can say that energy is required to convert it from solid to liquid

The heat energy required to convert it into liquid is given by

here we know

m = mass of snow

L = latent heat of fusion

So when snow is melt into liquid then in that case the thermal energy from the surrounding is absorbed to convert it into the form of liquid.

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