AQA GCSE Kerboodle Book: P14.3 Light Design an experiment using a light meter and a rectangular glass block to find out how the absorption of light by a glass block depends on the thickness of the block. (6 marks)

An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.

If the new moon happens on january 15th, what shape will it be on february 6th?

Which form of cell division creates the sperm and egg, resulting in half of the chromosomes as the other cells?