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The secondary voltage of an ignition transformer in a furnace is 14.5 kV. When the primary operates at an rms voltage of 100 V, the primary impedance is 23.3 O and the transformer is 91.9% efficient.
a) What turns ratio is required?b) What is the current in the secondary?c) What is the impedance in the secondary?
One cylinder in the diesel engine of a truck has an initial volumeof 600 cm3. Air is admitted to the cylinder at 30 C anda pressure of 1.0 atm. What are its final temperature and volume
A .115 kg mass undergoes simple harmonic motion on a horizontal spring with force constant k= 287 N/m. estimate the amplitude of the motion
Which pulls harder gravitationally, the Earth on the Moon, or the Moon on the Earth? Which accelerates more? Explain your answers in terms of relevant principles of physics.
At the surface of Jupiter's moon Io, the acceleration due to gravity is 1.81 m/s^2 .
A pendulum of length 9.00 m is held out to point A. At the vertical position, an overhang effectively cuts the length of the pendulum by an amount equal to 3m. (That is, 3.0 m is no longer free to swing.) How long does this pendulum take for one o..
A beanbag is thrown horizontally from a dorm room window a height h above the ground. find the direction of the beanbag's velocity just before impact
Household wiring made of aluminum wire with cross-section area 3.1 x 10^-6 m^2 carries a current of 4.5 A. what is the power loss over 5.2 m of wire
answer these 4 questions in detail approximately 300 words. make the senteces easier. dont make them complicated. just
In the first-order spectrum, maxima for two different wavelengths are separated on the screen by 3.22 mm. What is the difference between these wavelengths
Using Ampère's law, calculate the magnetic field inside and outside of a toroidal coil with a radius of 25 cm
a globular cluster at its farthest point from the galactic center is at a distance of 104 pc.what is its period of
Guns on World War II battleships could shell targets 15 km away. Find (a) the minimum launch speed needed to achieve that range and (b) the shell s flight time under these conditions
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