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A horizontal wire that is 4.4 m long is exposed to a uniform external magnetic field of magnitude 79 mT (millitesla). The external field is directed at an angle of 39o below the horizontal. The magnetic force on the wire has a magnitude of 3.5 N. Determine the current I in the wire, in amps.
A 7 kg bowling ball moves at 2.15 m/s. How fast should a 2.40 g Ping-Pong ball move so that the two balls have the same kinetic energy.
a nurse measures the temperature of a patient to be 41.5 degrees C. what is the temperature on the Fahrenheit scale
If a second point charge of ?3.0 nC is placed at the location where you calculated the electric field in part (a), what will be the magnitude of the force on this second charge due to the field of the first
A 30-meter steel tape is correct at a temperature of 20.0(C). The distance between two points, What is the true distance between the points
A 7 g bullet has a speed of 270 m/s and embeds itself into a 600 g block. How far does the block slide after the collision before coming to rest
A tank of water sits at the edge of a table of height 1.0 m. The tank springs a very small leak at its base, What is the water level h in the tank
A 60.0-kg runner expends 335 W of power while running a marathon. determine the volume of bodily fluid (assume it is water) lost per hour
A thundercloud similar to the one described in Example 24.3 produces a lightning bolt that strikes a radio tower. find the effective resistance of the air during the lightning strike
A person whose mass is m = 97.0 kg steps on a mechanical bathroom scale placed on an inclined plane that makes the angle ? = 25.3° with the horizontal
If the curve were not banked, elucidate the minimum coefficient of friction between tires and road that would keep traffic from skidding out of the turn when traveling at 97 km/h?
A high-speed flywheel in a motor is spinning at 450rpm when a power failure suddenly occurs. How many revolutions would the wheel have made during this time
A ball leaves a table with an initial horizontal velocity of 2.4 m/s. The height of the table is adjustable. What is the horizontal distance between the two landing locations of the ball
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