a. the larger the current, the larger the magnetic field
Explanation:
The magnetic field produced by a current-carrying wire is given by the equation:
where
is the vacuum permeability
I is the current in the wire
r is the distance from the wire at which the field strength is calculated
From the equation, we notice the following points:
- The strength of the magnetic field is directly proportional to the current in the wire
- The strength of the magnetic field is inversely proportional to the distance from the wire
Therefore, the only correct option in the list is
a. the larger the current, the larger the magnetic field
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Answer:
No he should not attempt the pass
Explanation:
Let t be the time it takes for the car to pass the truck. The driver should ONLY attempt to pass when the distance covered by himself plus the distance covered by the oncoming car is less than or equal 400 m (a near miss)
At acceleration of 1m/s2 and a clear distance of 10 + 20 + 10 = 40 m, we can use the following equation of motion to estimate the time t in seconds
Within this time frame, the first car would have traveled a total distance of the clear distance (40m) plus the distance run by the truck, which is
8.94 * 25 = 223.6m
So the total distance traveled by the first car is 223.6 + 40 = 263.6m
The distance traveled by the 2nd car within 8.94 s at rate of 25m/s is
8.94 * 25 = 223.6 m
So the total distance covered by both cars within this time frame
223.6 + 263.6 = 487.2m > 400 m
So no, he should not attempt the pass as we will not clear it in time.
The cart is going left is your answer
Kilogram(kg)
It's not the SI unit of mass in the metric system however.
I believe that fidget toys should not be brought back in school, reason being is because fidget spinners were originally made for students with example: Autism . Who actually needed them. Now that people who don't need them are buying them and playing with them in the classroom, it causes a complete distraction and is not being used for its original purpose whatsoever .
