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The primary of a transformer is connected to a source of voltage that has two components: an alternating current (AC) component of 120 volts and a steady direct current (DC) component of 5 volts. The number of turns of the primary is 300 and the that of the secondary is 6000. What is the voltage at the output of the secondary?
A) 2400 volts AC and 100 volts DC
B) 2400 volts AC only
C) 100 volts DC only
D) 2500 volts AC only
E) 2500 volts DC only
Define how Pascal's law addresses the pressure in a fluid at different heights (or depths) before addressing the question and would you apply it in this case
A parallel-plate capacitor with circular plates and a capacitance of 13.9F is connected to a battery which gives a voltage of 12.8V. What is the charge on each plate? How much charge would be on the plates if their separation were doubled while the c..
Consider a thin, uniform rod of mass m and length L (and negligible other dimensions) lying on the x axis (from x=-L to 0). Derive a formula for the gravitational ?eld “g” at any arbitrary point x to the right of the origin (but still on the x-axi..
Taking the clockwise direction to be negative, find the angular acceleration of the cylinder. During the rotation, the forces maintain their same angles relative to the cylinder.
Kim has a far point of 29 cm. If she wants to use glasses of power -3.99 D to correct her vision. How far from her eyes should the glasses be put
A diver 40 m deep in 10 degree Celcius fresh water exhales a 0.50-cm-diameter bubble. What is the bubble's diameter just as it reaches the surface of the lake, where the water temperature is 20 degrees Celcius? Assume that the air bubble is always in..
When monochromatic light is being used with a certain diffraction grating, it is found that the first-order maximum occurs at 8°. What is the highest order of maximum that can be observed
The top surface of a calm, smoothly flowing stream is always at atmospheric pressure. As water in this stream runs into a tree stump and slows almost to a stop, the water's top surface
A force acts on a block weighing 45N. The block is initially at rest on a plane inclined at angle θ = 18.0° to the horizontal. The positive direction of x axis is up the plane.
Two charges, Q1= 2.10 microCoulombs, and Q2=6.10 microCoulombs, are located at points (0,-4.00cm) and (0,+4.00cm). P is located at(5.50cm,0). What is the y-component of the total electric field at P
Find the final velocities of (a) the 2.70-kg ball and of (b) the 7.10-kg ball if the collision is elastic. (c) Find the magnitude and direction of the final velocity of the two balls if the collision is completely inelastic.
A 83.0 kg fullback is running at 3.86 m/s to the east and is stopped in 0.760 s by a head-on tackle by a tackler running due west. Calculate the impulse exerted on the fullback.
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