Calculate the increase in volume in an aluminium cube whose size is 10cm long when heated from 0 degree celcius to100 degree celcius ( cofficient of linear expansion of aluminium bar is 2.5 exponential -5 kelvin inverse

that would be because of both gravity and friction. so     c

i think the answer is a and b

i wish you luck

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.