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In each of two coils the rate of change of the magnetic flux in a single loop is the same. The emf induced in coil 1, which has 243loops, is 3.36 V. The emf induced in coil 2 is 4.75 V. How many loops does coil 2 have?
A system of 1402 particles, each of which is either an electron or a proton, What is the mass of this system
A28.0-kg block is initially at rest on a horizontal surface. A horizontal force of76.0N is required to set the block in motion, after which a horizontal force of57.0N is required to keep the block moving with constant speed.
A 12 kg runaway grocery cart runs into a spring with spring constant 240 N/m and compresses it by 60 cm. What was the speed of the cart just before it hit the spring?
What is the greatest mass that can be accelerated upwards at 2.9 m/s2 if the stress in the cable is not to exceed the elastic limit of the cable, that is 2.2 108 Pa.
imagine a truck with a mass of 25 metric tons t 1 t1000 kg barrelling down a highway at a speed of 59 mih. what is the
A copper wire of radius a = 0.331 mm has an aluminumjacket of outer radius b = 0.459 mm. There is a currenti = 2.23 A in the composite wire. Take the resistivity for copper and aluminum to be 1.69 x 10-8Ω·m and2.75 x 10-8Ω·m.
Two spheres are launched horizontally from a 1.2 -high table. Sphere is launched with an initial speed of 4.5. What is the time for the sphere to hit the floor
A small block of mass m = 1.8 kg slides, without friction, along the loop-the-loop track shown. What is the kinetic energy of the mass at the point A on the loop
A 41.9 g object is attached to a horizontal spring with a spring constant of 10.8 N/m, What is the velocity of the object when it is halfway to the equilibrium position
A certain source of soundwaves radiates uniformly in all directions. What is the total acoustic power output of the source
A 9.7 Ω resistor,a 10.8 µF capacitor, and a 27.9 mH inductor are connectedin series with a 120 V (rms) source with variable frequency. At what frequency will the current be maximum? Find the maximum rms current.
A 220 kV power transmission line carrying 500 A is hung from grounded metal towers by ceramic insulators, What fraction of the power carried by the line in this
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