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Questions: Electric Motor 1. How can you make your motor run in reverse? Make sure to try it. 2. Try making various armatures for your motor. Increase or decrease the number of turns in the armature. What effect does this have? 3. How do you think this motor operates?
A 1500-kg car starts from rest to reach 60.0 miles/h in 7.50 s. What is the engine's power output
Calculate the pressure at the center of pipe A. Suppose T = 10?C.
A 100 kg block is pulled at a constant speed of 6.2 m/s across a horizontal floor by an applied force of 123 N directed 27° above the horizontal. obtain the rate at which the force does work on the block
A 4.38-kN piano is lifted by three workers at a constant speed to an apartment 27.2 m above the street using a pulley system fastened to the roof of the building. find the time required to lift the piano from the street to the apartment
An iron tower in is 304 meters tall on a cold day (T = -9 degrees Celsius). What is its height of the tower on a hot day when the temperature is 34.6degrees Celsius
A thin, flexible rod of length L=10 cm carries charge Q=91 N/C uniformly along its length. What is the magnitude of the electric field at the center
the intensity of a laser beam is 450 wm2. what is the rms value of the electric field of this laser beam? careful-rms
If both the ring and the rod are warmed together, what temperature must they both reach so that the ring barely slips over the rod.
the ion source in a mass spectrometer produces both singly and doubly ionized species x and x2. the difference in mass
you are swinging your younger sister in a horizontal circle of radius 0.65 m. her mass is 21 kg and you arrange it so
A typical power transmission line carries a current of 1000 A about 30.0 meters above the ground. The magnetic field generated at ground level by the current is a matter of concern to those who live nearby.
A Space Ship is very deep in space, it stars from rest and firesits engine. After 10 seconds, the engine shuts off. Describe themotion of the ship after the engine shuts off?
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