A bandwidth of 12 MHz becomes available for assignment. If assigned for TV broadcast service, only two channels could be accomodated. Determine the number of AM stations that could broadcast simultaneously if the maximum modulating frequency is limited to 5kHz. a) 650 stations b) 1200 stations c) 600 stations d) 1000 stations ؟

What are igneous intrusions and extrusions

"an open tank has the shape of a right circular cone. the tank is 6 feet across the top and 5 feet high. how much work is done in emptying the tank by pumping the water over the top edge? note: the density of water is 62.4 lbs per cubic foot."

Alarge cruise ship of mass 7.00 ✕ 107 kg has a speed of 11.6 m/s at some instant. (a) what is the ship's kinetic energy at this time? (b) how much work is required to stop it? (give the work done on the ship. include the sign of the value in your answer.) (c) what is the magnitude of the constant force required to stop it as it undergoes a displacement of 3.00 km?