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The secondary coil of a neon sign transformer provides 7500 V at 10.0 mA. The primary coil operates on 120 V. What does the primary draw?
An airplane maintains a speed of 573 km/h relative to the air it is flying through as it makes a trip to a city 689 km away to the north. What time interval is required for the trip if the plane flies through a headwind blowing at 38.1 km/h toward t..
You spray your sister with water from a garden hose. The water is supplied to the hose at a rate of 0.105 liters per second, At what speed does the water exit the nozzle
The temperature of a body is increased from -173 C to 357 C. What is the ratio of energies emitted by the body per second in these two cases
A laser of 750 nm is shown through a grating having 5,000 lines per cm. What is the angle to the first order spots
Two balls are on a frictionless horizontal tabletop. Ball X initially moves at 10 meters per second, which angle and at what velocity will ball y move
A coil has an inductance of 0.05 H and a resistance of 52 O. The coil is connected to a 6.0-V battery. After a long time elapses, the current in the coil is no longer changing. What is the rate of energy dissipation in the coil
A particle with a charge of q = -5.40 nC is moving in a uniform magnetic field of vec{B}=( -1.24 T ) hat{z}. The magnetic force on the particle is measured to be vec{F}= ( -7.60×10-7 N )hat{y}. find v_x, the x component of the speed of the particl..
An 85 kg man lowers himself to the ground from a height of 5.6 m by holding onto a rope that runs over a frictionless pulley to a 75 kg sandbag
If 1 mol of oxygen is heated at a constant pressure of 1 atm from 10 C to 25 C. What is the change of volume of the gas in this process
A parallel-plate capacitor is formed from two circular 20-cm-diameter plates spaced 1.0 mm apart. What is the charge (in nC) on the positive plate
A hanging wire made of an alloy of aluminum with diameter 0.12 cm is initially 2.8 m long. When a 40 kg mass is hung from it, the wire stretches an amount 1.57 cm. A mole of aluminum has a mass of 27 grams, and its density is 2.7 g/cm3.
The rope makes an angle of 70.0 degrees with respect to the vertical as shown. Illustrate what is the tangential speed of the ball?
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