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An AC generator has an output rms voltage of 94 V at a frequency of 76 Hz. If the generator is connected across a 15 mH inductor, find the following.
(a) inductive reactance
______Ω
(b) rms current
_______A
(c) maximum current in the circuit
A car drives north at 42 mi/h for 10 {rm min} and then turns east and goes 5.0 {rm mi} at 62 mi/h. at last, it goes southwest at 30 mi/h for 6.0 {rm min}.
Two capacitors, C1 = 30 µF and C2 = 4.0 µF, are connected in parallel and charged with a 110 V power supply. Calculate the total energy stored in two capacitors
Two spheres with masses m1 = 820 kg and m2 = 830 kg are separated by 0.230 m. What is the net gravitational force from them on a 3.0 kg sphere located 0.161 m from m1 and 0.069 m from m2? Use a + sign if the direction is towards m2 and a - sign if..
A car traveling on a flat (unbanked), circular track accelerates uniformly from rest with a tangential acceleration of a. determine the coefficient of static friction between the car and the track
A man pushes a lawnmower for 13.1 m along a handle that makes a 28.2° angle with the ground. He pushes with a force of 42.8 N even as the force of friction between the lawnmower and the ground is 13.7 N.
An alpha particle (the nucleus of a helium atom formed by 2 protons and 2 neutrons with charge q = +2(1.6 x 10-19 C), Calculate the acceleration of the alpha particle
A tiny sphere with a charge of q = +6.0 µC is attached to a spring. Two other tiny charged spheres, each with a charge of ?4.0-µC, are placed in the positions, in which b = 3.8 cm. The spring stretches 5.0 cm from its previous equilibrium position..
Assume that 10 g of steam is added to 100 g of water initially at 19°C. The water is inside an aluminum cup of mass 35 g. Find the final temperature of the water after equilibrium is reached
A proton moving at 3.6*10^5m/s to the right enters a region where a uniform electric field of magnitude 60kN/C points to the left
Alberta is going to have dinner at her grandmother's house, but she is running a bit behind schedule. What is the slowest speed at which she could drive
If you stand on a bathroom scale, the spring inside the scale compresses 0.40mm, what does the scale read at its peak
suppose that the springs have somehow not yet compressed to their maximum amount. How much are the springs compressed.
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