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A 1200 turn coil in a dc motor has an area per turn of 2.2 * 10-2m-2. The design for the motor specifies that the magnitude of the maximum torque is 2.9 N-m when the coil is placed in a .20 T magnetic field. What is the current in the coil?
Here on Earth you hang a mass from a vertical spring and start it oscillating with amplitude 1.9 cm. How long does it take for the mass to make one round trip
A 4 kg block, resting on a horizontal surface, is struck by a bullet moving horizontally with a speed of 200 m/s. How much energy is dissipated (mostly as heat) in this collision process
How much work is done by the motor when the motor when the position of the arm is moved from x=0.150m to x=0.750m? what is the power of the motor in watts
Four identical springs support equally tghe weight of a 1300 kg car. the car driver goes over a speed bump, find the oscillation period
Jack wants to build a radio to tune to a station at 520 MHz. He has available 0.25 micro hertz inductor, What value of capacitance should be used
Two stars located 22 light-years from Earth are barely resolved using a reflecting telescope having a mirror of diameter 66 cm. find the separation between the stars
Space vehicles traveling through Earth's radiation belts can intercept a significant number of electrons, Find the resulting surface charge density
Consider a loop with 50 square turns that is 12 cm on a side and is in a uniform 0.6 T magnetic field. Find the current through a loop needed to create a maximum torque of 9.00 N · m
A specimen of oil having an initial volume of 600cm3 is subjected to a pressure increase of3.6×106Pa, What is the bulk modulus (in Pa) of the material
Find out how far from the center of the earth this location is. The mass of the earth is 5.98x10^24 kg. The mass of the moon is 7.35x10^22kg. The mean distance between the moon and the earth is 3.85x10^8 m
A sample containing carbon, oxygen, and an unknown element isplaced in a mass spectrometer. What is the mass of the unknown element
A light plane is headed due south with a velocity of 157 km/h relative to still air. After 1.00 hour, the pilot notices that they have covered only 121 km and their direction is not south but southeast (45.0^circ).
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