Speed = distance /time
speed = 30 miles / 26 minute
speed = 30 miles /26 minute x 60 minutes/1 hour
speed = 900 miles/13 hours
speed = 69 mph
The speed actually exceed the limit
hope this helps
Answer:
So the induced emf is
Explanation:
Since there is a variation in the current flow on the coil , it means that the magnetic field in the brain would also vary causing an emf to be induced
and from the question the current varies from zero to peak so would the magnetic field vary from zero to peak(i.e from 0 to 0.40T)
This induced emf is mathematically represented as
Where dt =
where
and
So dt
A is the area of the coil mathematically evaluated as
A =
Where
Substituting 2.2cm = for d
Then
Now
Answer:
0.68 s
Explanation:
We are given that
Initial velocity of box=
Final velocity of box=v=11.5 m/s
Distance=d=8.5 m
We have to find the time taken by box to slow by this amount.
We know that
Substitute the values
We know that
Acceleration=
Substitute the values
Hence, the time taken by box to slow by this amount=0.68 s
Answer:
Explanation:
We are given that
Current,I=2.85 A
Length of segment=l=2.35 m
d=0.275 m
We have to find the magnitude of magnetic field due to this segment of wire at a point P which is at midpoint of the straight wire.
Magnetic field,B=
Where
Using the formula
Answer:
GPS Satellites.
Explanation:
You will always be able to have access to 4 of them no matter where you are on the Earth. This is useful for triangulation.