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An x-ray machine uses 260 kV rms at80.0 mA rms when it is operating. The power source is a 420 V rms line.
a) What must be the turns ratio of the transformer?b) What is the rms current in the primary?c) What is the average power used by the x-ray tube?
A 1200-kg car is being unloaded by a winch. At the moment shown in figure 9-46, the gearbox shaft of the winch breaks, and the car falls from rest. Find the speed of the car as it hits the water
For nitrogen gas at 35 C calculate the vrms, the vp and the translational kinetic energy
You are driving into St. Louis, Missouri, and in the distance you see the famous Gateway-to-the-West arch. how far (in kilometers) are you from the base of the arch
three identical 6.0-kg cubes are placed on a horizontal frictionless surface in contact with one another. the cubes are
q1.an green hoop with mass mh 2.4 kg and radius rh 0.14 m hangs from a string that goes over a blue solid disk pulley
A coil of wire is connected to an ideal 12.0-V battery at t = 0. At t = 14.2 ms, the current in the coil is 210 mA. calculate the inductance of the coil
question1asteroids can be classified into two broad groups based on their composition and location carbon-rich
a spherical virus has a diameter of 50 nm. it is contained in a long narrow cell of length 1 x 10-4 m. what uncertainty
Unpolarized light passes through five successive Polaroid sheets, What is the intensity of the transmitted beam
a body of mass 7.06 kg moves along the x axis influenced by a conservative-variable force fx -4x3 the bodys initial
two resistors one of 5 ohms and the other of 3 ohms are connected in series to a 6v battery. a what is the resistance
A bowling ball of mass 2.7 kg and radius 9.5 cm rolls from rest, What is the speed of the ball at the bottom of the incline
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