Answer:
The change in angular momentum is 
Explanation:
From the question we are told that
The initial angular velocity of the spinning top is 
The angular velocity after it slow down is 
The time for it to slow down is 
The rotational inertia due to friction is 
Generally the change in the angular momentum is mathematically represented as

substituting values


Answer:
B = (μ₀*i/(2*π*x))*(x²-(a/2)²)/((b/2)²-(a/2)²)
Explanation:
Given
Outer diameter of the wire = b ⇒ R = b/2
Diameter of the clindrical hole at the center = a ⇒ r = a/2
The current that flows from left to right and is uniformly spread over the region between a and b = i
We apply Ampere's Law
Using the following formula for a/2 ≤ x ≤ b/2
B = (μ₀*i/(2*π*x))*(x²-(a/2)²)/((b/2)²-(a/2)²)
Answer:
vertical distance between a peak or a valley and the equilibrium point.
Explanation:
Answer:
-0.0426 m
Explanation:
-i / o = h' / h
-1.71 / 0.0237 = 3.04 /o
o = -0.042
1/o + 1/i = 1/f
1/(-0.042) + 1/(3.04) = 1/f
-23.81 +0.329 = 1/f
-23.481 = 1/f
f = -0.0426 m