A person drives 4 miles to the mall. If the speed limit is 45 miles/hr and the person
1 answer:
Answer: Third Option
Yes, the person is going 133 miles/hr.
Explanation:
Remember that the average speed can be calculated as
Where s is the speed
d is the distance traveled
t is the time
In this case
Therefore
Remember that the speed limit is 45 miles/hr
So the answer is the third option "Yes, the person is going 133 miles/hr".
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<span>A. decreasing the current
In fact, the magnetic field produced by a current carrying wire is given by
</span>
<span>where
</span>
<span>I is the current in the wire
r is the distance from the wire at which the field is calculated
We see from the formula that the intensity of the field, B, is directly proportional to the current I, so if the current decreases, the magnetic field strength B decreases as well.</span>