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A 440-loop circular armature coil with a diameter of8.0cm rotates at 120rev/s in a uniform magnetic field of strength 0.30T.
What is the rms voltage output of the generator? Include appropriate units.
A student walks 24 m from her math class and then turns 90° and walks 10 m to her locker, that is directly north of her class. What is her total displacement.
Two 53 {rm g} blocks are held 30 {rm cm} above a table. One of them is just touching a 50-long spring. The blocks are released at the same time. The block on the left hits the table at accurately the same instant as the block on the right first comes..
A 12.0-V battery produces 205mA when it's across a 47.5? load, Find the potential difference across the battery's terminals
A 79.0 kg man is riding in a shopping mall. The escalator moves the man at constant velocity from ground level to the floor above, the vertical height of 4.40m.What is the work completed on the man by the gravitational force and the escalator.
A sphere of radius R is uniformly charged to a total charge of Q. It is made to spin about an axis that passes through its center with an angular speed ω. Find the magnitude of the resulting magnetic field at the center of the sphere.
A ball of mass 522 g starts at rest and slides down a frictionless track. It leaves the track horizontally, striking the ground a distance of 1 m from the end of the track after falling the vertical distance 1.25 m from the end of the track.
An electron starts from rest 5.00 cm from the center of a uniformly charged sphere of radius 4.00 cm. If the sphere carries a total charge of 1.00 x10-9 C, how fast would the electron be moving when it reaches the surface of the sphere.
An aircraft weighing 812 N is accelerated at 11.8 m/s2 for 5 seconds, at which time the aircraft launches. Assume the acceleration is constant
What is the pressure (in kPa) exerted by an object that has a base which is 2cm by 4cm nd a weight of 45N.
If an astronaut dropped a small rock near the surface of Pluto, how far (in m) would the rock fall in 2.4 s
How much energy is given to the cell during this pulse. How many years would it take the earth to move 1.0 mm at this speed.
When he accelerates from a stoplight, the tassel deflects backward toward the rear of the car hanging at an angle of 6.30° relative to the vertical. Find the tension in the string holding the tassel
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