Idon't have time to sit down and learn this school is almost out and i'm failing plz me somebody . chemical reactions happen when atoms attract or repel one another heat is created by friction two or more substances are mixed substances are heated or cooled

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.

Which is not true of alpha radiation? o a. it increases the number of protons. o b. it has a positive charge. o c. it causes transmutation. o d. it is heaviest of the three types

Describe the work performed by a ski lift in terms of kinetic and gravitational potential energy