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Two coils have the same number of circular turns and carry the same current. Each rotates in a magnetic field acting perpendicularly to its axis of rotation. Coil 1 has a radius of 4.6 cm and rotates in a 0.23-T field. Coil 2 rotates in a 0.44-T field. Each coil experiences the same maximum torque. What is the radius (in cm) of coil 2?
Two particles with Q1 = 50 µC and Q2 = 79 µC are initially separated by a distance of 2.4 m, What is the change in the electric potential energy
As a engineer, you are designing a heat pump that is capable of delivering heat at the rate of 22 kW to a house. The house is located where, in January, the average temperature is 10°C.
The velocity of a ball changes from m/s to m/s in 0.02 s, due to the gravitational attraction of the Earth and to air resistance. What is the rate of change of momentum of the ball
Explain how far x can a man who weighs 447 n from the right support which is 1.1 m from the right side of the board before the board tips?
Two objects of masses m and 3.00 m are moving towards each other along the x-axis with the same initial speed of v. The object with mass m is travelling to the left.
find the period of this oscillation.
An electron with a speed of 7.98 × 108 cm/s in the positive direction of an x axis enters an electric field of magnitude 2.25 × 103 N/C, how much time will have elapsed
Certain criteria have been met which suggest that an intangible asset has been created. Illustrate w hat amount should be recognized as research and development expense in 2011 using U.S. GAAP?
What is the size of the smallest vertical plane mirror in which a 10 tall giraffe standing erect can see her full-length image? (Hint: Locate the image by drawing a number of rays from giraffe's body that reflect off the mirror and go to her eye.
As the drawing shows, the bullet puts a hole in a window of another building and hits the wall that faces the window. h is 0.54 m and d is 8.0 m. Assume that the bullet does not slow down as it passes through the window. Evaluate the Distance H
A helicopter is ascending vertically with a speed of 9 m/s. At a height of 200 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach ground.
A car traveling at 93km/h strikes a tree. The front end of the car compresses and the driver comes to rest after traveling 0.75 m. What was average acceleration of the driver during the collision? Express the answer in terms of "g's," where 1.00g ..
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