Answer:
Angular velocity = 0.105 rads⁻¹
speed of tip = 0.00105 ms⁻¹
Explanation:
A second hand turns 2π rad each 60 sec
Thus: it has an angular speed given by
ω = 2π/T = 2π/60 = π/30 = 0.105 rad s⁻¹
The speed of the tip is given by
V= rω = 0.01 m × (0.105 rads⁻¹)
= 0.00105 ms⁻¹
Answer:
The average induced emf is 29.06 V
Explanation:
Given;
radius of the circular loop, r = 12.0 cm = 0.12 m
magnetic field strength, B = 1.8 T
time interval = 2.8 ms = 0.0028 s
Area of the circular loop, A = πr² = π (0.12)² = 0.0452 m²
where;
B is magnetic field
A is area
t is time
substitute the values given in the above equation to calculate the average emf that will be induced in the wire loop during the extraction process.
Therefore, the average induced emf is 29.06 V
Answer:
The dimension of mass can be represented as:
Explanation:
We have Force = Mass X Acceleration
= Mass X
or, Mass = Force x
So, dimensions of mass =
=