The video shows a collapsing cloud of interstellar gas, which is held together by the mutual gravitational attraction of all the
1 answer:
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Answer:
The electric flux through the sphere is
Explanation:
Given
Required
Find the electric flux
Electric flux is calculated using the following formula;
Ф = q/ε
Where ε is the electric constant permitivitty
ε
Substitute ε and
; The formula becomes
Ф =
Ф =
Ф =
Ф =
Ф =
Ф =
Ф =
Ф =
Hence, the electric flux through the sphere is
Answer:
length of selfie-stick is 1.62 m
Explanation:
Given data
image size h1 = 5 mm = 5 × m
focal length = 4 mm = 4 × m
distance h2 = 2.032 m
to find out
How long of a selfie-stick
solution
here we find first magnification
that is M = h1 /h2
M = 5 × / 2.032
M = 2.46 ×
and we know M = p/q
so p = Mq = 2.46 × q
so we apply lens formula
1/f = 1/p - 1/q
1/ 4 × = 1 / 2.46 ×
q - 1/q
q = 1.622 m
so length of selfie-stick is 1.62 m