if the half time of a substance A is 0.5 years how long would it take for 2 grams of substance A to remain given an initial mass of 16 grams

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

Plz mark brainliest 30 points 1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s. 2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?

Heat is the total potential energy of a substance that can be transferred. true false