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An ac generator has a frequency of 2.2 kHz and a voltage of 240 V. An inductance L1 =6.0 mH is connected across its terminals. Then a second inductance L2 =10 mH is connected in parallel with L1. Find (a) the current that the generator delivers to L1 and (b) to the parallel combination.
if a planet has a radius 20% greater than of the earth but has the same mass as the Earth, what is the acceleration due to gravity at its surface
The Pfund series results from emission/absorption of photons due to transitions of electrons in a hydrogen to/from the n = 5 energy level from/to higher energy levels
When one person shouts at a football game, the sound intensity level at the center of the field is 62.4 dB. When all the people shout together, how many people are at the game
a thin rod of length 10.3m and mass 20kg is supported at a 30 degree incline. one support is 2.4m and the other is 8.3m from the lower end of the rod, Find the normal force exerted on the rod by the upper support answer in units of N
Assuming all the energy is retained by the hammer head, evaluate how much will its temperature increase? (Chead=0.11 kcal/kg degrees C) 1/2 m v^2 = mc Deltatemp solve for deltaTemp.
A 270-m-wide river flows due east at a uniform speed of 3.5 m/s. A boat with a speed of 7.6 m/s relative to the water leaves the south bank pointed in a direction 25o west of north. What is the (a) magnitude and (b) direction of the boat's velocit..
Calculate the change in the melting point of naphthalene for one atmosphere rise in pressure given that its melting point is 80 C. Latent heat of fusion is 4563 cal/mol and increase in volume on fusion is 18.70 cm3 per mol and 1 calorie = 4.2×10^7..
A rocket carrying a satellite is accelerating straight up from the earth's surface. At 1.10 s after liftoff, the rocket clears the top of its launch platform, Calculate the magnitude of the average velocity of the rocket
how much work was done by her force acting on the car
A solenoid is 8.93 cm long, 1.56 cm in diameter, and has 310 turns. find the magnetic flux through one turn of the solenoid
Two teams of nine members each engage in a tug of war. The first team's members have average masses of 65 kg and exert average forces of 1350 N horizontally. What is the acceleration of the two teams
It is believed that a large electric fish known as Torpedo occidentalis uses electricity to shock its victims. What is the rate at which this work is done by the electric organs during a pulse
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