9. CALCULATE: How much more power is used to move a weight of 500 N a distance of 20 m in
5s than is used to move a weight of 1,000 N a
distance of 30 m in 30 sec?

Decreased sensitivity to an unchanging stimulus is known as

Convection currents are caused by differences in what two things?

Ne way in which elements differ from each other is the structure of the electron cloud in each element's atoms. in an electron cloud, an electron that is farther away from the nucleus has