Why are there so few eclipses in 2014? Shouldn't there have been a lunar eclipse every month? - Because the Moon was not close enough to the Earth to be completely in its shadow.
- Because there is not a New Moon every month.
- Because the Moon's orbit around Earth is tilted.
- Because the Earth is tilted.

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.

What causes the development of most clouds and precipitation in the atmosphere?