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1. Determine the resistance of a 75-W lightbulb connected to its proper source voltage of 110 V. Express your answer to two significant figures and include the appropriate units.
2. Determine the current through a 75-W lightbulb connected to its proper source voltage of 110 V. Express your answer to two significant figures and include the appropriate units.
3. Determine the resistance of a 250-W lightbulb connected to its proper source voltage of 110 V. Express your answer to two significant figures and include the appropriate units.
4. Determine the current through a 250-W lightbulb connected to its proper source voltage of 110 V. Express your answer to two significant figures and include the appropriate units.
a bicyclist starts a sprint with an initial speed of 2.0m/s, she moves a constant acceleration, how long did it take the bicyclist to complete the race
At what distance along the central axis of a ring of radius 1.8 cm and uniform charge 66 C is the magnitude of the electric field maximum.
A 47.0 kg woman stands up in a 70.0 kg canoe of length 5.00 m . She walks from a point 1.00m from one end to a point 1.00m from the other end. how far does the canoe move during this process
Brain injuries generally occur any time the brain's acceleration reaches 100 g for even a short time, Consider a car running into a solid barrier
A ball with I=(2/5)MR2 is placed on a plane inclined atan angle θ. The plane is accelerated upward (along its direction) with acceleration a. For what value of a does the CM(center of mass) of the ball not move?
A 0.600 kg hammer is moving horizontally at 8.00 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. What was the average force exerted on the nail
A satellite of mass 4500 kg orbits the Earth(mass = 6.0 1024 kg) and has a period of 5800 s. Find the magnitude of the Earth's gravitational force on the satellite
two wires a and b are of equal length. each is attached at one end to the ceiling and to a weight at the other end. the
You're driving down the highway late one night at 17m/s when a deer steps onto the road 38m in front of you. What is the maximum speed you could have and still not hit the deer
The coefficient of kinetic friction is 0.250. Illustrate what should be the magnitude of P, so that the net work done by it and the kinetic frictional force is zero?
a steel wire has the following properties length 5.50m cross-sectional area 5.00times10?2cm2 youngs modulus
A 240-V dc motor has an armature whose resistance is 1.10? . When running at its operating speed, it draws a current of 16.0A, What is the back emf of the motor when it is operating normally
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