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A "110-watt" lightbulb uses an average power of 110 W whenconnected to an rms voltage of 120 V.
A) What is the resistance of the lightbulb?B) What is the maximum current in the bulb?C) What is the maximum power used by the bulb at any given instantof time?
A massive steel cable drags a 20.0kg block across a horizontal, frictionless surface. A 115N force applied to the cable causes the block to reach a speed of 4.30m/s in 2.30s. What is the difference in tension between the two ends of the cable?
The range of a projectile depends not only on v0 and ?0 but also on the value g of the free-fall acceleration, which varies from place to place. by how much would his record have differed
The transformer supplying power to an artist's light sculpture provides 9600-V AC when supplied by 120-V AC. how many turns are there in its secondary coil
Three capacitors having capacitances of 8.7%u03BCF , 8.7%u03BCF , and 4.1%u03BCF are connected in series across a 31-V potential difference. What is the total energy now stored in the capacitors
You are pulling a suitcase through an airport at a constant speed. The handle of the suitcase makes an angle of 60 degrees with respect to the horizontal direction, what is the contact force due to the floor acting on the suitcase
A disk shaped grindstone of mass 3.0 kg and radius 8 cm is spinning at 600 rpm. After the power is shut off the frictional torque brings the grindstone to rest in 10 s. ? What is the number of complete revolutions of the grindstone after the power is..
A long, narrow horizontal slit lies 1.00 µm above a plane mirror, which is in the horizontal plane. Find the distance from the mirror to the first maximum
Sally travels by car from one city to another. She drives for 26.0 min at 74.0 km/h, 44.0 min at 48.0 km/h, Determine the total distance traveled
Two 8.00mm x 8.00mm electrodes with a 0.10-mm-thick sheet of Mylar between them are attached to a 8.0V battery. Without disconnecting the battery, the Mylar is withdrawn. (Very small spacers keep the electrode separation unchanged.) Dielectric consta..
A 5.06 10-5 H solenoid is constructed by wrapping 63 turns of wire around a cylinder with a cross-sectional area of 9.70 10-4 m2 , Determine the change in the length of the solenoid
The system shown above is in equilibrium. The steel block has a mass m1 = 234 kg, What is the tension in the vertical wire that holds the steel block
Calculate the pressure on the top lid of a chest buried under 3.65 meters of mud with density 1.75 103 kg/m3 at the bottom of a 11.5-m-deep lake
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