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A wire of length L carries a current i in the positive direction of an x axis through a magnetic field = By(j hat) + Bz (k hat). In unit-vector notation, what is the magnetic force on the wire? (Use any variable or symbol stated above as necessary.)
Neglect air resistance for the following. A soccer ball is kicked from the ground into the air. When the ball is at a height of 12.6 m, its velocity is (5.5 + 4.5) m/s. To what maximum height will the ball rise
You are trying out for the position of place-kicker on a professional football team. By how much is it under or over the bar
The origin of the coordinate system and with a label at their heads. Two of these vectors are given in terms of the unit-vectors I and j as
A Carnot engine uses hot and cold reservoirs that have temperatures of 1850 and 845 K, respectively. The input heat for this engine is QH. The work delivered by the engine is used to operate a Carnot heat pump. The pump removes heat from the 845-K re..
A camera's flash uses the energy stored in a 270 microF (uF) capacitor charged to 190 V. The current in the charging circuit is not to exceed 25 mA. What's the resistance in the charging circuit
Examine that, for gold, the volume of water displaced will be 51.8 cubic centimeters.
A 55.6 kg child slides down a water slide with a velocity of 0.9 m/sec at the top. At the bottom of the slide, she is moving horizontally, y=1.5 meters above the water. She splashes into the water d=2 meters to the left of the bottom of the slide.
A curve in a road forms part of a horizontal circle. As a car goes around it at constant speed 14.0 m/s, What is the total horizontal force on the driver
Two objects of the same mass move along the same line in opposite directions. The first mass is moving with speed. What was the speed of the second mass before the collision
A gas water heater burns natural gas. Each gram of natural gas burned yields approximately 13,000 calories of energy. A typical water heater takes in water at about 20oC (68oF) and raises its temperature to 60oC (140oF). A typical “low-flow” showe..
Water is drawn from a well in a bucket tied to the end of a rope whose other end wraps around a solid cylinder of mass 50 kg and diameter 25 cm. As this cylinder is turned with a crank, the rope raises the bucket.
Calculate the magnitude of the electric field at one corner of a square 0.820m on a side if the other three corners are occupied by 6.03×10?6C charges
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