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A simple generator id designed to operate in the outback of Australia. The square armature consists of windings that are 36.0cm long on each side and the armature rotates in a magnetic field of 0.42 T at rate of 2300 revolutions per minute. There are 650 loops of wire (diameter of wire is 2 min) wound on the square armature. What is the expected output voltage from this generator?
in a poll of 1084 adults it was found that 22 smoked cigarettes in the past week. use 0.05 nificance level to test
A car engines has an efficiency of 25 percent and produces an average of 23,000 Joule of mechanical work per sec during operation. Determine how much heat input is required
A spool of wire of mass 4.1 kg and radius 0.35 m is unwound under a constant wire tension 4.4 N. Find the friction force on the bottom of the spool
Considering just the Sun and Jupiter, determine the radius of the circular orbit the Sun makes about the Sun-Jupiter center of mass
A sledge loaded with bricks has a total mass of 17.1 kg and is pulled at constant speed by a rope inclined at 19.9° above the horizontal. how much work is the roping doing on the sledge
The focal length of a bi-convex lens is 10 cm. The focal length of a convex-concave thin lens is -20 cm. If placing them in parallel and in close contact, what is the compound focal length
heat is a energy transferred by virtue of a temperature difference b energy transferred by macroscopic work c energy
A 0.14 kg sphere hangs on a string from the ceiling of a car that is accelerating horizontally at a constant rate. What is the magnitude of the net force on the sphere
A 66 kg rock climber is climbing a so called chimney between two rock slabs, What is her push against the rock
A car is towing a boat on a trailer. The driver starts from restand accelerates to a velocity of +19.2 m/s in a time of 27 s. What is the tension in the hitch that connects the trailer to the car
An ice cube is floating at the top of a glass of water. After it melts completely, will the water level rise, fall, or stay the same? Explain your answer.
A trunk of mass m = 1.100 kg is pushed a distance d = 32.0 cm up an incline with an angle of inclination theta = 26.0 ° by a constant horizontal force P = 150. N. find the work done on the trunk by the gravitational force
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