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A 5000 W electric heater is used for 32 hours. Calculate the energy consumed in this period. The plates are seperated by a distance of .100 mm. If air is in the space betwen the plates calculate the capacitance C of the capacitor. If the heater is connected to a 220 V line, what is the current drawn by the heater?
A closed cylindrical tank has a height of 0.77m. The tank is at first filled with air at a pressure of 2.00 atm. Water is pumped into the tank until the air pressure reaches 6.1 atm. The temperature is constant. Find out the height of the compress..
A coin with a diameter of 3 cm is dropped onto a horizontal surface. The coin starts out with an initial angular speed of 27.8 rad/s, How far does the coin roll before coming to rest
R 134a flows at steady state through a horizontal pipe havingan inside diameter of 4 cm, entering as saturated vapor at -8degrees C with a mass flow rate of 17 kg/'min. Refrigerant vaporexits at a pressure of 2 bar.
The velocity selector in the figure is designed to allow charged particles with a speed of 4700 m/s to pass through undeflected. Find the magnitude of the required electric field
Two 1.7 kg masses are 2.0 m apart (center to center) on a frictionless table. Each has +1.0 µC of charge. What is the magnitude of the electric force on one of the masses
An ultrasound unit sends a 2.4 MHz sound wave into a 35cm long tube filled with an unkown liquid. What is the speed of the sound in the liquid
a 70 kg hockey player sliding freely on his knees on horizontal icy surface with velocity m/s. find the velocity of the player after he catches the puck
The fire department decides to use the burning books to heat water
An x-ray tube is operated at 40600 V. find the minimum wavelength of the radiation emitted by this tube
Then a second inductance L2 =10 mH is connected in parallel with L1. Find out (a) the current that the generator delivers to L1 and (b) to the parallel combination.
A train on a straight, level track has an initial speed of 37.0 km/h. What is the speed of the train at the end of this distance
A group of students need to cross a river in the shortest time. In what direction should the students head the boat
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