Joe and alexandria are playing a game of tetherball. alexandria begins the game and serves the ball counterclockwise. after traveling revolutions, the ball is struck by joe in a clockwise direction. if the path of the ball is modeled on a cartesian plane with the initial position of the ball at , at what angle is the ball 2 revolutions after joe hits it?

The us government wants to allocate billions of dollars in the next 10 years to assure our future energy security. the funds will be spread among a variety of possible energy resources. where do you think the government should put the greatest support: solar energy, wind energy, clean coal, oil exploration, gas exploration, or a combination of sources? are there other efforts that should be explored? support your position with cited information for both questions.

What happens to atoms and chemical bonds during a reaction?

The magnetic field inside a superconducting solenoid is 4.50 t. the solenoid has an inner diameter of 6.20 cm and a length of 26.0 cm. determine (a) the magnetic energy density in the field and (b) the energy stored in the magnetic field within the solenoid.