How many calories are in 4.50 kilojoules (kJ)? Must show correct work for credit. *Note the following conversions: 1 calorie = 4.18 J and 1 kJ = 1000 J

The tilt of the earth's axis of rotation is responsible for the a) ocean's tides. b) size of the moon. c) brightness of stars. d) earth’s seasons.

According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons

What energy conversion occurs when a sling shot is used to shoot a rock across the room? (2 points) question 2 options: 1) stored mechanical energy is converted to mechanical energy. 2) stored mechanical energy is converted to radiant energy. 3) gravitational energy is converted to radiant energy. 4) gravitational energy is converted to mechanical energy.