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Question: A 130-W lamp is placed in series with a resistor and a 100-V source. If the voltage across the lamp is 29 V,
Part A: What is the resistance R of the resistor?
I need help to find the resistance R of the resistor.
Two vehicles approach a right angle intersection and then collide. find the magnitude and direction of the final velocity of the wreck
Two wire loops are side by side (1, then 2). The current I(1)in loop 1 is supplied by an external source and is clockwise asviewed from the right. While I(1) is increasing, what is the direciton of the magnetic force exerted on loop 2 if any? Expla..
the collision between a hammer and a nail can be considered to be approximately elastic. estimate the kinetic energy
A monochromatic light i incident on a single slit of width of 0.1 mm, and a diffraction pattern is formed at a screen which is 0.7 m away from the slit. The second order bright fringe is at a distance 2 mm from the center of the central maximum.
A 500g model rocket is on a cart that is rolling to the right at a speed of 3.0m/s. The rocket engine, At what horizontal distance left of the hoop should you launch
Suppose I have three small objects of equal mass m. I place them on a massless, rigid, circular hoop of radius R. what is the moment of inertia for the whole system
Compare the speed of sound following from that slope to the calculated speed of sound from the gas properties
A 900 kg car is going 20 m/s along a level road. How large a constant retarding force is required to stop it in a distance of 30 m? Perform the calculations for a (a) smooth road and (b) road with coefficient of rolling friction of 0.03.
A common neutron source uses alpha particles striking beryllium, causing the reaction 4He+9Be -> 12C+1n. find the total kinetic energy of the reaction products
A small airplane flies in a flies in a straight line at a speed of 750 kilometer per hour. Find how many hours or minutes does it take the plane to fly 350 kilometer
The 65.0 kg climber in the figure is supported in the "chimney" by the friction forces exerted on his shoes and back. What is the minimum normal force he must exert
a coil is connected to a 60 hz ac generator with a peak emf equal to 80 v. at this frequency the coil has an impedance
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