10. On Christmas Eve night when all the Who's are sleeping, are they still using energy? Explain this by using the Law of Conservation of Energy.

Using  the Law of Conservation of Energy is described below in details.

Explanation:

The law of conservation of energy tells that energy can not be produced nor stopped - only transformed from one kind of energy to different. This indicates that a system constantly has the same quantity of energy, unless it's combined from the outside. This law is extremely significant because it is a really easy process to figure out relevant knowledge about an article.

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.