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You have a small electromagnet that consumes 300 W from a residential circuit delivering 120 V at 60.0 Hz. Using your AC multimeter, you determine that the unit draws 3.52 A rms.
What is the internal resistance of the electromagnet?
What is the inductance of the electromagnet?
A 60kg boy and a 45 kg girl use an elastic rope while engaged in a tug-of-war on a frictionless icy surface. If the acceleration of the girl toward the boy is 2.3 m/s2, find the magnitude of the acceleration of the boy toward the girl.
A crate of mass 2000 kg is hanging from a crane at the end of a cable 12 m long. what angle will the cable finally make with the vertical
A rope is used to pull a 2.25 kg block at constant speed 7.47 m along a horizontal floor. The force on the block from the rope is 7.52 N, find the work done by the rope's force
A singly charged positive ion has a mass of 2.53 10-26 kg. After being accelerated through a potential difference of 238 V, Calculate the radius of the path of the ion in the field
q1. a projectile is launched from earths surface at a certain initial velocity at an angle above the horizontal
question1visualize a crystal that exploits for binding coulomb attraction of the positive andnbspnegative ions of the
A circular saw blade of diameter 0.175m starts from rest. In a time interval of 5.60s it accelerates with constant angular acceleration to an angular velocity of 140rad/s
An air-traffic controller observes two aircraft on his radar screen. The first is at altitude 750 m, horizontal distance 19.8 km, What is the distance between the two aircraft
Find the energy required to flip a magnetic dipole of 3 x 10^(-4) A*m^(2) in a magnetic field of 0.6T
If a 0.34kg kickball is rolled towards a kicker at 8.1m/s and then is kicked at its velocity of -12.0m/s, what impulse is acting in the kickers foot
Illustrate w hat angular speed (in revolutions per minute) is needed for a centrifuge to produce an acceleration of 720 times the gravitational acceleration 9.8 m/s2 at a radius of 9.95 cm ?
A thin rod has a length of .25 m and rotates in a circle on a frictionless tabletop. The axis is perpendicular to the length of the rod at one of its ends. What is the angular momentum of the rod before the bug started crawling
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