In order for the aluminium bar to have its rate of conduction increased, which of the following changes should be made?
A. Increase its length
B. Increase its thickness
C. Decrease its thermal conductivity
D. Decrease the temperature gradient

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.

If element x has 99 protons how many electrons does it have

An object dropped from cliff falls with a constant acceleration of 10 metre per second square find its speed of two seconds after it was dropped