Answer:
The resistance of the wire is 1.47 ohms
Explanation:
Electromagnetic induction is a physical phenomenon that consists on generate electric current changing magnetic flux. The magnitude of the electromotive force (emf) generated by the change on magnetic flux is given by Faraday-Lenz law:
with N the turns of the coil, and phi_{B} the magnetic flux.
So, in our case because the magnetic flux changes from 12.0 Wb to 4.5 Wb on 0.034 seconds.
The electromotive force acts as voltage source for the coil, so we can use Ohm's law:
with I the current, R the resistance and V the voltage (the emf), solving for R
3 x 108 is roughly 300 people.
Half of them have cars. Half of 300 = 150.
150 x 12000 = 1,800,000 miles driven.
Each car gets 20mpg.
Solve for the # of gallons consumed.
Answer:
i. -4m
ii. 20m
Explanation:
The car travels 8m to the east, then travels 12m to the west which is the opposite of the east. Going west, the car travels 8m back to the origin point and then another 4m due west to make 12m. The displacement from the origin point is -4 (the negative sign shows the direction because displacement is a vector quantity)
Total distance = 8m going east + 8m back to origin + 4m west = 20m
Rock climbing. Free diving. Sky diving. Dog sledding.
