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A 120 V (rms) AC power supply that delivers 0.5 A (rms) current is connected to "side 1" of a transformer. The coil on side one of the transformer has 100 turns and the coil on side 2 of the transformer has 250 turns. If the circuit connected to side two of the transformer has two resistors in series, 135 ohms and 225 ohms, respectively, what is the peak voltage drop across the first resistor?
A 144-g baseball moving 29m/s strikes a stationary 5.25-kg brick resting on small rollers so it moves without significant friction. Determine the baseball's speed after the collision
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1330 Hz. What is the speed of the bird
A steam catapult launches a jet aircraft from the aircraft carrier John C. Stennis, giving it a speed of 190 mi/h in 2.00 s. (a) Find the average acceleration of the plane. Your response is within 10% of the correct value. This may be due to round..
Two forces FA and FB are applied to an object whose mass is 5.43 kg. The larger force is FA. When both forces point due east, the object's acceleration has the magnitude of 1.40 m/s2. Though, as FA points due east and FB points due west, the accelera..
Mr. Physics drops a rock down a 250-meter deep well. Upon impact with the bottom of the well a short burst of sound is produced with a frequency of 250 Hz. How long after he drops the rock does he hear it hit bottom of the well.
You have 3.0 moles of helium gas initially at a temperature of 350 K, and a pressure of 0.20 x Patm, How much heat flows into the gas
A circular coil, with radius of 10 cm, and 25 turns, rotates in a constant magnetic field of strength 2.4 T, If the magnetic field that the coil is in points down the page, which direction does the coil rotate
Consider two widely separated conducting spheres, 1 and 2, the second having four times the diameter of the first. What is the ratio of the final surface charge density of spheres
An explosion breaks an object initially at rest into two pieces, one of which has 1.6 times the mass of the other. how much kinetic energy did the heavier piece acquire
A damped mass-spring system oscillates at 165 Hz. The time constant of the system is 2.0 s. At t = 0, the amplitude of oscillation is 7.0 cm and the energy of the oscillating system is then 70 J.
A bullet is fired into a block of wood sitting on a block if ice. The bullet has an initail velocity of 500m/s and a mass of 0.005 kg. The wooden block has a mass of 2kg and is initially at rest.
A student pushes a loaded sled whose mass m is 240kg for a distance d of 2.3m over the frictionless surface of a forzen lake. if the sled starts from rest, what is its final velocity
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