Light waves require a medium to travel. *
True
False

25pts the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

If y gets smaller as x gets bigger and y have an relationship?