3. me(2 mkandle
The diagram below shows the essential features of a solar heating panel. A small electric pump circulates the
liquid through the pipes.
Glass plate
Metal plate
Pipes
Air space
Material fibre glass
State briefly why:
The pipes and metal plates are blackened.
(ii) There is a material fibre glass on the panel.
(1mk)
(1mk)​

Which two objects have the greatest gravitational force acting between them

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.

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?