Stars with fairly circular orbits about the galactic center is found in the disk
<h3>What are
stars?</h3>
Stars are one of the astronomical object that is usually very bright.
A circular orbit star is a star that moves in circular direction and not elliptical orbit which is most common to starts.
Therefore, Stars with fairly circular orbits about the galactic center is found in the disk
Learn more on orbit below
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Answer:
field B = µ₀c I / 2πr
The field in the xy plane due to the fact that the two wires are perpendicular to the plane Bx and By are everywhere 0 on the plane.
a) Midway between, the Bz components cancel, so <0, 0, 0> T
b) Bz = µ₀ x I / 2πa + µ₀ x I / 2π(3a) = (µ₀ x I / 2π)(1/a + 1/3a)
Bz = (µ₀ x I / 2πr)(3/3a + 1/3a) = (µ₀x I / 2πr)(4 / 3a) = 2µ₀ x I / 3πa
c) By symmetry, Bz = -2µ₀ x I / 3πa (that is, down into the plane)
Answer:
The displacement, the time and the direction
Explanation:
The velocity of an object is defined as:
where
d is the displacement, which is a vector describing the change in position of the object
t is the time in which the displacement takes place
Since d (the displacement) is a vector, velocity is a vector as well: this means that it also has a direction, which corresponds to the direction of the displacement.
The magnitude of the velocity, insteand, is called speed.
Average velocity is equal to the total distance traveled over the time elapsed.