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Six identical bulbs are connected in series across a 120-Volt source. What is the voltage across each bulb? If the current is 0.55 A, what is the resistance of each bulb and what is the power dissipated in each bulb?
A transverse mechanical wave is traveling along a string lying along the x-axis. The displacement of the string as a function of position and time, y(x,t), is described by the following equation: y(x,t) = 0.0490sin(3.60x-182t) where x and y are in..
Two 24.1-cm-focal-length converging lenses are placed 16.5-cm apart. An object is placed 35.0-cm in front of one lens. What is the total magnification
When the switch was first closed to charge the capacitor, what was the effective resistance of the capacitor when it was fully charged
a golfer uses a club to hit a 45-g golf ball resting on an elevated tee so that the golf ball leaves the tee at a
a solid copper and glass sphere are equally negatively and positively charged respectively. draw diagrams showing the
Your car has stalled and you need to push it. You notice as the car gets going that you need less and less force to keep it going. How much work does the force of gravity do on the ball
A 20.0 kg box is pulled up a ramp a distance d = 15.0 m with a force of Fp = 165 N parallel to the ramp, as shown in the figure to the right. Find the work done on the block by gravity
A wire is formed into a circle having a diameter of 10.0 cm and placed in a uniform magnetic field of 2.50 mT. The wire carries a current of 5.00 A. Find the maximum torque on the wire.
Consider a heat engine that operates between thermal reservoirs at 510 K and 242 K. Suppose the engine does 4900 J of work while it expels 103 J of energy to the cold reservoir. Is this engine possible in the real world? Hint: Violations of the secon..
A mirror faces a cliff located some distance away. How many times does the muzzle flash of the gun travel the round trip distance between the mirrors before the echo of the the gunshot is heard
A model-train car of mass 275 gtraveling with a speed of 0.50 m/s links up with another car ofmass 410 g that is initially at rest. What is the speed of the cars immediately after they have linked together? Find the initial kinetic energy.
a person stands at the base of a hill that is a straigt incline making an angle omega with the horizontal. for a given
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