32P is used to treat some diseases of the bone. Its half-life is 14 days. Find the time it would take for a sample of 32P to decay from an activity of 10,000 counts per minute to 8,500 counts per minute.

Achemist has dissolved a certain substance in water. the chemist knows that more of the substance could be dissolved into the water before it stops dissolving. therefore

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.

An alpha particle is: a hydrogen atom a nucleus of helium two neutrons an electron