In astronomy circumpolar constellations are those ones which never set from viewer's perspective like ursa minor, cassiopiea etc.
Because of the rotation of the Earth and its orbit around the Sun, we divide the stars and constellations into two groups. Some stars and constellations never rise nor set, and they are called circumpolar. All the rest are divided into seasonal stars and constellations. Which stars and constellations will be circumpolar and which seasonal depends on your latitude.
If atoms lose , they become more organized.
When energy is removed from a given amount of atoms, they enter a more organized state because their attractive forces overcome their repulsive forces, which causes them to come closer. This is observed when a gas is condensed to a liquid, and then also when a liquid freezes into a solid. This moving closer also limits the motion of the particles.
Answer:
diameter of transmission is 3.473 mm
Explanation:
given data
current = 300 A
total wire length = 1.0 m
voltage drop = 0.55 V
solution
as here Resistivity of copper is = 1.68 × ohm- m
so we get here resistance of wire that is
resistance = ..............1
R =
R = 1.774 × ohm
and now we get diameter of wire that is
R = .............2
d² = ...............3
put here value
d² =
d =
d = 3.473 × m
d = 3.473 mm
so diameter of transmission is 3.473 mm
Answer:
8 mm
Explanation:
From the information given:
The Ampere circuital law can be used to estimate the magnetic field strength at two points when the distance is less than the radius and when the distance is greater than the radius.
when the distance is less than the radius ; we have:
when the distance is greater than the radius; we have:
Equating both equations together ; we have :
where; d = radius of the wire and r = distance;
R = 8 mm
Explanation:
Waves are disturbances that transmits energy from one point to another either using the particles of the medium or not.
There are different forms of waves.
The electromagnetic waves is produced by the sun and it transmits energy to all the universe
Ocean waves are clearly physical and we can see how they propagate in nature.
Causes of waves:
- The ultimate cause of a wave is a source of disturbance and energy.
- In the ocean, wave are caused by winds when they cause friction over surface waters.
- Electromagnetic waves are energetic waves that transmits their own energy outward.
- Temperature differences between places can cause waves too.
- Vibration can lead to generation of waves.
- Pressure differences
learn more;
Light waves brainly.com/question/8032392
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