How will the mass of a rusted iron nail compare with the mass of the same nail before it rusted? a. the two masses will be the same. b. the rusted nail will have the greater mass. c. the unrusted nail will have the greater mass. d. it depends on whether or not the nail has rusted all the way through.

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

Choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. a 1.0 kg block is placed on top of a 2.0 kg block. a horizontal rope pulls the 2.0 kg block across a frictionless floor with a force of 21.0 n. the coefficient between the two blocks is 0.75. does the 1.0 kg block on top slide?

What do the atoms of elements in the same group have in common? a. they have the same atomic numbers. b. they have the same average atomic masses. c. they have the same number of electron shells. d. they have the same number of electrons in their outermost shells.