An element having symbol Te has half life 6 hours. The number of atoms which are decayed in one day are? (a) 1/2 (b) 1/4 (c) 1/16(d) 1/32

The experiment done in lab is repeated, using a ball that has unknown mass m. you plot your data in the form of f 2 versus m/l, with f in rev/s, m in kg, and l in m. your data falls close to a straight line that has slope 3.19 m/(kg · s2). use g = 9.80 m/s2 and calculate the mass m of the ball.