The half life of a radioactive substance is 2 days. What is the fraction of original number of atoms which have decayed in 8 days ?​

Calculate the capacitance of a system that stores 2.0 x 10^-10c of charge at 100.0 v. use c=q/v. a. 2.0 x 10^-12 f b. 2.0 x 10^-8 f c. 5.0 x 10^11 f d. 5.0 x 10^7 f

A17,250 kg rocket is pushed with a thrust of 6,450,284 n. what is the acceleration of the rocket?

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false