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A transformer consists of 300 primary windings and 832 secondary windings. 1. If the potential difference across the primary coil is 22.5 V , what is the voltage across the secondary coil? 2. If the potential difference across the primary coil is 22.5 V , what is the effective load resistance of the secondary coil if it is connected across a 110 ohm resistor?
A capacitor has plates that are located .08 meters from each other with air as the material between the plates, Find the force exerted on the plates of the capacitor
A pendulum has a time period of 5 sec at a particular place. calculate the acceleeration due to gravity at this place
A rock climber throws a small first aid kit to another climber who is higher up the mountain. What is the vertical height between the two climbers
You drop a 297-g silver figure of a polar bear into the 245-g aluminum cup of a well-insulated calorimeter containing 257 g of liquid water at 22.7°C. What is the final temperature of the water, cup, and bear
A steel wire of mass 0.400kg and length 0.640m supports a 102 kg block. The wire is struck exactly at its midpoint causing a small displacement. How long does it take the peak of this displacement to reach the top of the wire.
A large tanker truck can carry 30 ton of liquid. (a) What volume of water can it carry? (b) What volume of gasoline can it carry.
A 5.00--long ladder has mass 12.5 kg and is leaning against a frictionless wall, making a 64 degree angle with the horizontal. If the coefficient of friction between the ladder and ground is 0.42, what is the mass of the heaviest person who can safel..
A 0.450-kg ball is dropped from rest at a point 1.30-m above floor. The ball rebounds straight upward to a height of 0.700-m. What are the magnitude and direction of the impulse of the net force applied to the ball throughout the collision with th..
When an open-faced boat has a mass of 5150 kg, including its cargo and passengers, it floats with the water just up to the top of its gunwales (sides) on a freshwater lake. What is the volume of the boat
In a ballistics test, a 22.0g bullet traveling horizontally at 1300m/s goes through a 30.0cm -thick 350kg stationary target and emerges with a speed of 900m/s, How long is the bullet in the target
A car traveling east and a minivan traveling south collide in a completely inelastic collision at a perpendicular intersection. what is the speed of the vehicles immediately after collision
A diving bell with interior air pressure equal to atmospheric pressure is submerged in Lake Michigan at a depth of 180.5 m. find the magnitude of the net force on the viewing port
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