The unit for wave frequency is Hertz (Hz)
Explanation:
1) Speed of armature is your answer
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Answer:
Explanation:
from snells law
sin(i)/sin(r) = refractive index
r = 90°
sin(i) = sin90°x 1.6
sin(i) = 1 x 1.6
angle of incidence = arcsin(1.6)
since sin90° = 1
hence,
angle of incidence = 36.86°
<span>Electrons display some properties of waves and while they reside outside of the nucleus, their positions cannot be known with certainty. </span>
Answer:
<em>The magnetic field's direction is towards the north</em>
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Explanation:
The force on a positive charge in a uniform magnetic field is represented by the right hand rule. To determine the direction of the force, place your right hand with your palm up, and your thumb at 90° to the other fingers. If the fingers represent the magnetic field, and the thumb the direction of the positive charge, then the palm will push up in the direction of the force. But a negative charge like an electron pushes in exactly the opposite direction. So if you follow this rule, you will find that the magnetic field points towards the north.