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An ideal step-down transformer has a primary coil of 340 turns and a secondary coil of 11 turns. Its primary coil is plugged into an outlet with 110 V (AC). If the current in the secondary coil is 25.65 A, what current does the primary coil draw? In the previous question, what is the power output of this transformer?
A block with mass m = 4 kg is sitting on the ground and not moving. The acceleration due to gravity is g = 9.81 m/s2. Please answer the following questions.
an electron emitted by a heated cathode and accelerated through a potential difference of 2.0 kv enters a region with
Two long, straight wires are oriented perpendicular to the computer screen, as shown below, in which L = 4.5 cm. The current in one wire is I1 = 3.1 A, pointing into the screen, and the current in the other wire is I2 = 4.0 A, pointing out of the sc..
Two 1.50-V batteries-with their positive terminals in thesame direction-are inserted in series into the barrel of a flashlight. What is the lamp's resistance
In a local bar, a customer slides an empty beer mug down the counter for a refill. The height of the counter is h. What was the direction of the mug's velocity just before it hit the floor
A mass spectrometer is used to examine the isotopes of uranium. Ions in the beam emerge from the velocity selector at a speed of 3.02 105 m/s and enter a uniform magnetic field of 0.625 T directed perpendicularly to the velocity of the ions.
water vapor is a polar gas whose diellectric constant exhibits an appreciable temperature dependence .the following
a particle of mass m starting with an initial velocity v0 is acted on by a force f mkv cv2 where k and c are
Which means that the clock of a photon's clock
The coefficients of static and kinetic friction between a 67 kg box and a horizontal surface are 0.56 and 0.32, respectively. Illustrate what is the acceleration of the object if a 335 N horizontal force is applied to the box?
A wooden plank is 5.00 meter long and supports a 75.0 kilogram block 2.00 meter from one end. find how much force is needed to support each end
jupiter has a mass that is roughly 320 times that of the earth and a radius equal to 11 times that of the earth. What is the acceleration due to gravity on the surface of jupiter
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