During the 1980s, the average emission of carbon from burning fossil fuels on earth was 5.438 petagrams (pg) of carbon per year in the form of co2. (a) how many kg of c were placed in the atmosphere each year

Work = force × a. work b. energy c. distance d. momentum

An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. what other characteristic does the radiation have?

Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.