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A 475turn circular-loop coil17.0cm in diameter is initially aligned so that its axis is parallel to Earth's magnetic field. In2.82ms the coil is flipped so that its axis is perpendicular to the Earth's magnetic field. If an average voltage of0.168V is thereby induced in the coil, what is the value of Earth's magnetic field at that location?
BEarth=µT
A father racing his son has 1/4 the kinetic energy of the son, who has 1/3 the mass of the father. The father speeds up by 1.5 m/s and then has the similar kinetic energy as the son.
A 140-m-wide river flows due east at a uniform speed of 3.9 m/s. A boat with a speed of 7.8 m/s relative to the water leaves the south bank pointed in a direction 39o west of north. How long does it take for the boat to cross the river
An AC voltage of rms value 413 V and frequency 75 Hz is connected across a light bulb with a resistance of 471 ohms. What is the rms current and maximum current
A person walks first at constant speed of 5.00 m/s along a straight line from point a to point band, What is her average speed over the entire trip
A proton in the upper atmosphere moves at 9.8×105m/s , perpendicular to Earth's magnetic field, Find the curvature radius of the proton's trajectory
How much work is done on the car by the engine when accelerating the car from rest to 90m/s, What is the average power delivered by the engine
A kangaroo is capable of jumping to a height of 2.62 m. Determine the takeoff speed of the kangaroo
An object moves 2.95m in the +x-direction under the influence of a 125N force directed 52 degrees above the x-axis. Find the work done on the object
Bill and Julie are both now on identical trains. Bill's train is moving to the right with velocity (/2)c with respect to Julie's train. How long does Bill measure Julie's train to be
12.0g of aluminum at 200C and 20.0g of copper are dropped into 51.0cm^3 of ethyl alcohol at 15C. What is the initial Temp of Copper
What is the resistance of a lightbulb that uses an average power of 55.0 W when connected to a 60.0 Hz power source having a maximum voltage of 180 V
A 2100 kg truck traveling north at 41 km/h turns east and accelerates to 54 km/h, What is the change in the truck's kinetic energy
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