A pulley is used to lift a heavy mass from the floor to a platform. The IMA of the system is 5 and the AMA is 2.5. What is the efficiency of the system?

The addition of electron shells results in shielding of electrons from the nucleus.

You are holding a shopping basket at the grocery store with two 0.60 kg cartons of cereal at one end of the basket. The basket is 0.77 m long. Where should you place a half gallon of milk (1.

Which is NOT a property of an acid

1. How much energy is needed to raise 1 g of water 1°C? 2. How much energy is needed to change 1 g of water at 100°C to steam at 100°C

Which type of power plant uses energy directly from the sun to generate electricity? A. Wind B. Hydroelectric C. Radiant D. Coal

Which of the following atoms do not usually form bonds

The red LED consists of a white LED covered with a red filter. What does the red filter do?

What is the net force acting on a 10 kg freely falling object?

A comet is a A. meteoroid that travels through Earth's atmosphere and hits the surface. B. meteoroid that burns up in Earth's atmosphere, producing a streak of light. C.

Can Someone explain the steps for this? A lovesick lad wants to throw a bag of candy and love notes into the open window of his girlfriend's bedroom above. Assuming it just reaches the window, he throws the love gifts at 16.