An object with a mass of 20kg has a net force of 80 n acting apon it

Asimple electrochemical cell contains two electrodes.

What is the momentum of 70 kg runner traveling at 10 m/s?

Which statements best describe medical uses for radioactive isotopes? check all that apply. radioactive isotopes are used to detect medical problems. high-energy gamma rays are injected into the body. radioactive isotopes are used to treat some diseases. radiation is used to kill cancer cells. radioactive isotopes are directed at tumors from outside the body.