1' draw a displacement -time graph for the following. displacement (m) 0,20,40,40,80,80,60,40 time (s) 0,10,20,30,40,50,60,70,80. a) explain the different sections of the graph in as much detail as you can. b). use the graph to determine the maximum velocity c) find the average velocity after 45s. d) find the instantaneous velocity at 45s ​

Which is not one of the major climate zones? question 3 options: rain forest polar tropical temperate

Starting with only the balmer series light (visible light), how could we ensure that the solar panels generate a current that mark can use for his power station? a)by gradually increasing the brightness (amount) of light that we shine on it. b)by gradually increasing the frequency of the light we shine on it. c)by gradually increasing the wavelength of the light that we shine on it.

Sound is a disturbance that travels through a medium as a