Asimple pendulum and a mass oscillating on an ideal spring both have period t in an elevator at rest. if the elevator now accelerates downward uniformly at 2 m/s2, what is true about the periods of these two systems? a. the period of the pendulum would increase but the period of the spring would stay the same. b.the period of the pendulum would decrease but the period of the spring would stay the same. c. both periods would remain the same. d. both periods would decrease. e. both periods would increase.

Ineed ! using proper grammar, spelling, and punctuation, write at least one 5 sentence paragraph describing 3 ways we use the elements of the electromagnetic spectrum (ems) in our everyday lives.

Ahorizontal force of 400.0 n is required to pull a 1760 n truck across the floor at a constant speed. find the coefficient of sliding friction.

Asquare 1m x 1m plate is shown below. all four of its edges are kept at 0 co. at t=0the temperature distribution is given by: y xtsins n75)=.a) using separation of variables determine the temperature distribution t(x, y,t)along the plate at any time t. b) discretize the heat conduction equation +=22222 txtusing a second-order centered difference scheme for the two second derivatives and a first-order forward euler scheme for the first derivative. using von neumann stability analysis, determine the stability criterion for the proposed discretization scheme in terms of , hand t. solve for the maximum allowable time step tmax