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nekit [7.7K]
3 years ago
11

Carla uses a table tennis ball and a volleyball to represent two astronomical bodies based on their sizes. Which of the followin

g representations is the most correct based on what Carla has?
A: The table tennis ball represents the Milky Way and the volleyball represents the local group cluster.
B: The table tennis ball represents the solar system and the volleyball represents Earth.
C: The table tennis ball represents the solar system and the volleyball represents the moon.
D: The table tennis ball represents the Milky Way and the volleyball represents the solar system.
Physics
2 answers:
VladimirAG [237]3 years ago
6 0

Answer:

A: The table tennis ball represents the Milky Way and the volleyball represents the local group cluster.

Explanation:

The universe is huge. It contains millions of billions stars in total of about 10 billion galaxies. These galaxies are grouped into clusters. Milky way is our home galaxy which is part of local group cluster. There are main three galaxies in local group cluster- Milky way, Andromeda and Triangulum. Other than these large galaxies there are dwarf galaxies part of the cluster.

Thus, a table tennis ball which is smaller in size would represent milky way and volley ball would represent local group cluster.

iragen [17]3 years ago
4 0
<span>A: The table tennis ball represents the Milky Way and the volleyball represents the local group cluster.</span>
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Answer:

Here is the complete question:

https://www.chegg.com/homework-help/questions-and-answers/magnetic-field-372-t-achieved-mit-francis-bitter-national-magnetic-laboratory-find-current-q900632

a) Current for long straight wire  =3.7\ MA

b) Current at the center of the circular coil =2.48\times 10^{5}\ A

c) Current near the center of a solenoid 236.8\ A

Explanation:

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\mu=4\pi \times 10^{-7}\ \frac{henry}{m}

Plugging the values,

Conversion 1\times 10^6 A = 1\ MA,and 2cm=\frac{2}{100}=0.02\ m

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⇒Magnetic Field at the center due to circular coil (at center) is given by,B=\frac{\mu\times I (N)}{2(a)}

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Answer:

Explanation:

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c)

If we change k to 1.8 W/m/K:

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d)

If k is 52.4 W/m/K and s is 0.024 m:

q = (k/s) A ΔT

q = (52.4 / 0.024) (0.42) (210)

q = 192,570 J/s

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