how many kg of ice temperature - 2 ° C we mix 110 kg of water so that the final temperature is 20 ° C

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.

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car