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High voltage power lines are made of aluminum and often start with an electric potential of around half a million volts and can carry as much as 10,000 Amps of current. How much potential is lost due to resistance in the lines as a function of length?
A series RLC circuit with L = 15 mH, C = 3.1 F, and R = 4.7 is driven by a generator with a maximum emf of 120 V and a variable angular frequency 8700. Find out phase angle (in degrees).
A movie camera with a (single) lens of focal length 75.0 mm takes a picture of a 177 cm high person standing 30.0 m away
A solid bowling ball with a radius of 10.9 cm and a mass of 7.3 kg rolls along a bowling alley at a linear speed of 2.4 m/s
A Carnot heat engine has a thermal efficiency of 0.510, and the temperature of its hot reservoir is 700 K. what is the work output of the engine during one cycle
An electron is initially at rest just outside a large copper surface that has the charge density of 1.20 x10-6 C/m2. How far has the electron moved in 1.07 x10-9 s if the field is uniform over this region.
Consider an unpolarized lightwave incident from air onto a planar dielectric material of index of refraction 1.50. Calculate the degree of polarization of the transmitted beam in part b above
A certain light source is found to emit radiation whose peak value has a frequency of 1.83E+15 Hz. Calculate the temperature of the source
A 12.5 cm tall soft drink can has a mass of 17.0 g and contains 364 g of soda when full. Where is its center of mass when half full
Bohr Model An electron is in the n=5 state of hydrogen to what states can the electron make transitions, what are the energies of the emitted radiations
A 2.83-kg book slides 1.17 m along a level surface. The coefficient of kinetic friction between book and surface is0.41. Find the work done by friction
A cannon tilted upward at = 33 fires the cannonball with a speed of 99. At that instant, what is the component of the cannonball's velocity parallel to the ground.
question1the large quadriceps muscle in upper leg terminates at its lower end in a tendon attached to upper end of the
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