D?.... I think? My guess anyway
This question is incomplete, the complete question is;
A flat coil is in a uniform magnetic field. What angle between the magnetic field and the plane of the coil produces the maximum flux, and what angle produces 90% of the maximum flux
A) max: 0°
90% of max: 90°
B) max: 90°
90% of max: 45°
C) max: 90°
90% of max: 64°
D) max: 0°
90% of max: 26°
E) max: 90°
90% of max: 80°
Answer:
Option C) max: 90°
90% of max: 64° is the correct Answer
Explanation:
from the Suppose Area is A.
then flux at angular position O is
Ф = BAsin∅
⇒ Ф = βmaxSin∅
flux will be max when sin∅ = 1
therefore sin∅ = 1
∅ = sin⁻¹ 1
∅ = 90°
Now at 90% of max flux
Ф ⇒ 0.9βmax = βmax sin∅
0.9 = sin∅
∅ = sin⁻¹ (0.9)
∅ = 64.15° ≈ 64°
Therefore Max ∅ = 90°
90% flux = 64°
Option C) max: 90°
90% of max: 64° is the correct Answer
<span>Part B
What are the values of the intial velocity vector components v0,x and v0,y (both in m/s) as well as the acceleration vector components a0,x and a0,y (both in m/s2)? Here the subscript 0 means "at time t0."
15.0, 26.0, 0, -9.80
</span><span>Part C
What are the values of the velocity vector components v1,x and v1,y (both in m/s) as well as the acceleration vector components a1,x and a1,y (both in m/s2)? Here the subscript 1 means that these are all at time t1.
15, 26, 0, -9.81</span><span>
</span>
Mechanical waves are those waves that require a material medium for propagation.
<h3>What are mechanical waves?</h3>
Generally, we define a wave as a disturbance along a medium which transfers energy. It then follows that waves move energy from one point to another.
Waves can be classified as;
- Mechanical waves
- Electromagnetic waves
Mechanical waves are those waves that require a material medium for propagation such as sound, and waves on a strings.
Learn more about mechanical waves: brainly.com/question/9242091
Answer:
There are eight planets in our Solar System.
Explanation:
