Bob and John are pulling in different directions. If Bob is pulling to the right with a force of 10N, and John is pulling to the left with a force of 12N

A) What is the net force acting on the box?

B) What direction the box will move

C) If the mass of the box is 4kg, what is the acceleration of the box?

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.