A piece of metal weighing 5kg is heated from 25°C to 50°C, the heat needed is 7000 J. Calculate :
(a) the heat capacity of the piece of metal
(b) the specific heat capacity of the piece of metalll.

gravity

explanation:

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

part 1: which substance has a higher solubility?

a

smallest amount left undissolved atall temps in table shown most has dissolved high sol'by