To solve the problem it is necessary to use the concepts and expressions related to the magnetic dipole moment.
It is usually defined by,
Where,
Magnetic Dipole Moment
I = Current
A = Area
In this way re-arrange for the current and replacing,
Therefore the current is 
Amperes
Answer:
3.83 s
Explanation:
Initially for 50 m A falls with acceleration equal to g ie 9.8 m /s².In this journey his initial velocity u = 0 , a = 9.8 , v = ? , t = ?
h = ut + 1/ 2 g t²
50 = .5 x 9.8x t²
t = 3.19 s
v = u +gt
= o + 9.8 x 3.19
= 31.26 m /s
For motion under deceleration
initial speed u = 31.26 m/s
Final speed v = 14 m/s
deceleration a = - 27 m/s²
v = u - at
14 = 31.26 - 27 t
t = 0.64 s
So total time in the air
= 3.19 + .64 = 3.83 s
Answer: a) Mr = 2.4×10^-4kg/s
V = 34.42m/a
b) E = 173J
Ø = 2693.1J
c) Er = 0.64J/s
Explanation: Please find the attached file for the solution
Answer:
12m/s
Explanation:
x = (21 + 22t – 6 t2) m,
We can express change bin velocity as
dx/dt= -12t + 22
But Velocity is changing
interval t = 1 s
t = 4 s
at t = 1, x = 21 + 22(1) -6(1)^2
=37
at t = 4, x = 21 + 22(4) -6(4)^2
=13
Distance travelled at interval t = 1 s
t = 4 s
X2 - X1=13- 37. = - 24m
Velocity= displacement/ time
= 24/(3-1)=12 m/s
