Standing waves are set up on a string that is fixed at both ends so that the ends are nodes. How many nodes are there in the fourth mode, including the endpoints?

Which device uses ac current to operate?

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

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?