That statement is flase. The index of refraction
of every material is more than 1.0 .
Answer:
Given:
radius of the coil, R = 6 cm = 0.06 m
current in the coil, I = 2.65 A
Magnetic field at the center, B =
Solution:
To find the number of turns, N, we use the given formula:
Therefore,
N = 22.74 = 23 turns (approx)
Answer:
9 hr
Explanation:
Speed = distance/time
Let the time taken by the train be t.
=> 70 = 630/t
=> t = 630/70
=> t = 9
it take 9 hr to complete its journey
Answer:
b
Explanation:
I believe its B and I'm pretty positive it is
24 hours x (60 mins/1hr) = 1440 mins
(10 kilometres/ min) x 1440 mins=14400 kilometres