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Q. A 10.0 resistor, 10.0 mH inductor, and a 110.0 µF capacitor are connected in series to a 50.0 V (rms) source having variable frequency. Find the energy delivered to the circuit during one period if the operating frequency is twice the resonance frequency.
Q. A uniform magnetic field of magnitude 0.078 T passes through a circular area of radius 0.1 m. The magnetic field lines are oriented at an angle of 25 degrees with respect to a line that is normal to the circular area. Calculate the flux through the surface.
Throughout three hours one winter afternoon, when outside temperature was 9° C, a house heated by electricity was kept at 21° C with the expenditure of 46kwh (kilowatt•hours) of electric energy.
Establish angles subtended by the moon and the sun
For a damped oscillator with a mass of 170g, the spring constant 92 N/m and a damping coefficient of 55g/s, what is the ratio of amplitude of the damped oscillations to the initial amplitude at the end of 22 cycles.
The minimum distance required to stop a car moving at 36.0 mi/h is 48 ft. What is the minimum stopping distance for the same car moving at 70.0 mi/h, assuming same rate of acceleration.
A 11.0g bullet is fired horizontally into a 103g wooden block that is firstly at rest on a frictionless horizontal surface and connected to a spring of constant 154N/m. The bullet becomes embedded in block. If the bullet-block system compresses the s..
If an astronaut can throw a certain wrench 14 {rm m} vertically upward on earth, how high could he throw it on our moon if he gives it the similar starting speed in both places.
What minimum force is necessary to start the block moving up the wall? (Hint: The static frictional force is now directed down the wall.)
A child attempts to drink water by a 100 long straw but finds that water rises only 75 .By how much has the child reduced the pressure in her mouth below atmospheric pressure.
A box of books weighing 397 N is shoved across the floor by a force of 543 N exerted downward at an angle of 37 degrees below the horizontal.
The street automobile with the greatest acceleration is the Tempest. It has an acceleration of 6.89m/s2. Suppose the car accelerates from the rest to a final speed of 96.5km/h. How long does it take Tempest to reach this speed.
A uniform plank of length 5.70 m and weight 215 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support. To what distance x can a person who weighs 452 N walk on the overhanging part of the plank before it just be..
A dog running in an open field has components of velocity = 3.4 and = -1.9 at time = 10.4. For the time interval from = 10.9 to = 24.7, the average acceleration of the dog has magnitude 0.45 and direction 25.
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