What did the Curies demonstrate by studying pitchblende? Uranium is not the only radioactive element.
All elements are potentially radioactive.
Radium can cause anemia, bone and tissue damage, and death.
Uranium salts emit something that can expose photographic film.

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.