Physics, 13.12.2021 05:10 amclinger4734
an airplain is flying due east at a speed of 116.3 m/s. A car is also traveling due east at a speed of 44.6 m/s on the ground below. If east is considered the positive direction, the speed of the car relative to a passenger on the plane is m/s
Answers: 3
Physics, 21.06.2019 16:30
Acar accelerates from 5.0 m/s to to 11 m/s at a rate of 3.0 m/s^2. how far does it travel while accelerating? 20m 117m 43m 16m
Answers: 3
Physics, 22.06.2019 01:10
If vx = 7.00 units and vy = -7.60 units, determine the magnitude of vโ . determine the direction of vโ .
Answers: 2
Physics, 22.06.2019 07:10
Search coils and credit cards. one practical way to measure magnetic field strength uses a small, closely wound coil called a search coil. the coil is initially held with its plane perpendicular to a magnetic field. the coil is then either quickly rotated a quarter-turn about a diameter or quickly pulled out of the field. (a) derive the equation relating the total charge q that flows through a search coil to the magnetic-field magnitude b. the search coil has n turns, each with area a, and the flux through the coil is decreased from its initial maximum value to zero in a time โt. the resistance of the coil is r, and the total charge is q = iโt, where i is the average current induced by the change in flux. (b) in a credit card reader, the magnetic strip on the back of a credit card is rapidly โswipedโ past a coil within the reader. explain, using the same ideas that underlie the operation of a search coil, how the reader can decode the information stored in the pattern of magnetization on the strip. (c) is it necessary that the credit card be โswipedโ through the reader at exactly the right speed? why or why not?
Answers: 2
Physics, 22.06.2019 12:30
Aboy with a mass 25 kg climbs into a small tree. he sits on a branch that is 2.o m above to the ground.what is his gravitational potential energy above the ground?
Answers: 1
an airplain is flying due east at a speed of 116.3 m/s. A car is also traveling due east at a speed...
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