A student weighs 600 N. The students shoes are in contact with the floor over the surface of 0.012 m². Calculate the pressure exerted by the student on the floor

Consider a one meter long horizontal pipe with a constant 100 cm^2 cross sectional area. water flows rightward into the pipe at x = 0 with flow velocity 02m/sec at every point within the pipe intake area. at x=1, the rightward flow rate is 0.192 m/sec. assume the water is a conserved quantity in the pipe, so there must be a leak (a sink) somewhere in the pipe. 1. compute net volumetric flow of the source if the system to be in equilibrium. 2. now assume the pipe in the problem has no leaks. compute the net volumetric rate of change for the system.

Coal contains energy. a. light b. kinetic c. chemical d. mechanical

Another word for electromagnetic energy is a. heat b. force c. matter d. radiation