g water is often used as a heat sotrage material especially in solar energy systems. what properties make water suitable for this purpose

a very high value of its heat or specific capacity

Explanation:

Water is a compound that has hydrogen in its system, hydrogen atoms can form bonds called hydrogen bridges, they give water a high capacity to store heat, at a macroscopic level these characteristics are reflected in a very high value of its heat or specific capacity

       ce = 4186 J / kg ºC

therefore to change the temperature the water must absorb a lot of energy

d

explanation:

v=uf/(u-f)

= 5.10/(5-10) convex lens has positive focal length

=50/-5

=-10 cm (formed at other side)

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement