An air-conditioning system's automatic controller might directly control the A. conversion of pneumatic energy to hydraulic signal pressure. B. thermostat's setpoint temperature C. motor of a large condenser fan D. sensitivity of the ladder logic

The least penetrating form of radiation is

If forces acting on an object are unbalanced. true or false

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.