Which choice shows the energy transformations that occur when a light bulb heats up after it has been turned on. A electrical - light - thermal
o
B. chemical - electrical thermal
O C. chemical - electrical - light
O
D. electrical - chemical-thermal

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

The electric field between square plates of a parallel-plate capacitor has magnitude e. the potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. the magnitude of the electric field between the plates is now equal to a)e b)e/4 c)e/2 d)4e e)2e

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?