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A narrow flat coil wound on a square frame has 120 turns and sides of 21.5 cm. It carries a current of 2.05 A and is positioned in a 0.230- T magnetic field. What is the maximum torque that can be exerted by the field on the coil?
An electron is accelerated by a uniform electric field (1000 V/m) pointing vertically upward. Use energy methods to get the magnitude and direction of its velocity
A 4.5m long, non uniform beam weighing 750N, supported by two weighing cables, is at rest in horizonal position as shown . The cable on the right has a tension of T1=650 N.
q1. a ball in flight is recorded and analyzed using digital video analysis software. the analysis produced the result
A capacitor (capacitance C1) is connected across the terminals of an ac generator. Without changing the voltage or frequency of the generator, a second capacitor (capacitance C2) is added in series with the first one.
A playground merry-go-round has radius 2.10m and moment of inertia 2200kg*m^2 about a vertical axle through its center, compute the average power supplied by the child
A pulley 18 in diameter is free to rotate about the horizontal axle. A 220 mass and a 420 mass are tied to either end of a massless string, and string is hung over the pulley.
A circular loop of conducting wire, with radius a and resistance R, is placed in a magnetic field. Find an expression for the induced current in the loop as a function of time
What is magnetic flux through the desk surface
An insulated Thermos contains 138cm3 of hot coffee at 95 °C. You put a 12g ice cube at its melting point to cool the coffee. By how numerous degrees has your coffee cooled once the ice has melted and equilibrium is reached.
The ems of an AC circuit has an rms value of 120V. What is the maximum positive emf
A man claims that he can hold onto a 16.0-kg child in a head-on collision as long as he has his seat belt on. Find the magnitude of the average force needed to hold onto the child
The front 1.20 m of a 1600 kg car is designed as a "crumple zone" that collapses to absorb the shock of a collision.
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