Physics, 01.08.2019 00:20 babycakes08d
Ahorizontal power line carries a current of 4950 a from south to north. earth's magnetic field (80.1 µt) is directed toward the north and is inclined downward at 56.0° to the horizontal. find the (a) magnitude and (b) direction of the magnetic force on 100 m of the line due to earth's field.
Answers: 3
Physics, 21.06.2019 17:10
Aspecial electronic sensor is embedded in the seat of a car that takes riders around a circular loop-the-loop ride at an amusement park. the sensor measures the magnitude of the normal force that the seat exerts on a rider. the loop-the-loop ride is in the vertical plane and its radius is 23 m. sitting on the seat before the ride starts, a rider is level and stationary, and the electronic sensor reads 740 n. at the top of the loop, the rider is upside down and moving, and the sensor reads 370 n. what is the speed of the rider at the top of the loop?
Answers: 1
Physics, 22.06.2019 15:30
Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled? a. the field does not change b. the field strength decreases by half. c. the field strength doubles d. the field strength quadruples
Answers: 1
Physics, 22.06.2019 16:00
What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass
Answers: 1
Physics, 22.06.2019 16:00
The discovery of the electron as a subatomic particle was a result of
Answers: 2
Ahorizontal power line carries a current of 4950 a from south to north. earth's magnetic field (80.1...
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