Answer:
Explanation:
Given that:
The conductivity of the material = 5.0 s/m
; &
The electric field intensity of the material E = 250 sin(10¹⁰ t) V/m
(a) The conduction current density
(b) Displacement current density
Recall that:
∴
(c) The frequency at which will have the same magnitude is:
By substitution
f = 90 GHz
Answer:
average acceleration = 2.74 x 10⁻³ rad/s²
Explanation:
given,
CD playing time = 76 minutes
initial angular speed of CD = 4.10 × 10² rev/min
=
= 42.9 rad/s
final angular speed of CD = 2.90 × 10² rev/min
=
= 30.37 rad/s
average acceleration =
=
average acceleration = 0.00274 rad/s²
average acceleration = 2.74 x 10⁻³ rad/s²
Answer:
88.1 N
Explanation:
As shown in the free body diagram attached to the question, the only forces acting on the inner block include in the required vertical direction.
- Its Weight.
- Frictional forces as a result of the Two compression forces.
If the block is not to slip off, the weights must match the two frictional forces
Let the compressive forces be F and frictional force be Fr
Fr = μ F
Sum of force acting on the inner block in the y-direction
Fr + Fr - W = 0
μ F + μ F = mg
2 μF = 118
2(0.67) F = 118
F = 118/1.34
F = 88.1 N
Each of the compression forces is 88.1 N
Hope this Helps!!!
Answer:
The answer is number 2 :)