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4 years ago

Currently, the Sun is thought to be located in the galactic _ about the center of the galaxy.

Physics

1 answer:

Ede4ka [16]4 years ago

8 0

Answer:

a. Disk, 28 thousand light-years from

Explanation:

Since, a galactic disc is a component of disc galaxies, for instance spiral galaxies and lenticular galaxies. It consists of a stellar component and a gaseous component.

Also, the Sun lies within the galactic disk or in other words it is thought to be located in the galactic disk,

The Sun is located about 26,000 light-years away from the centre of the galaxy.

∵ From the given options 28,000 is nearest to 26,000

Hence, the sun is about 28 thousand light-years from the centre of the galaxy.

i.e. OPTION 'a' would be correct.

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The force of attraction between a -165.0 uC and +115.0 C charge is 6.00 N. What is the separation between these two charges in m

Molodets [167]

Answer:

r = 5.335 meters

Explanation:

Given that,

Charge 1, $q_1=-165\ \mu C$

Charge 2, $q_2=115\ \mu C$

Force of attraction between two charges, F = 6 N

The force of attraction between two charges is given by :

$F=k\dfrac{q_1q_2}{r^2}$ , r is the separation between two charges

$r=\sqrt{\dfrac{kq_1q_2}{F}}$

$r=\sqrt{\dfrac{9\times 10^9\times 165\times 10^{-6}\times 115\times 10^{-6}}{6}}$

r = 5.335 m

So, the separation between two charges is 5.335 meters. Hence, this is the required solution.

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3 years ago

Each kidney contains nephrons that filter the blood and remove waste. Please select the best answer from the choices provided. T

bekas [8.4K]

Answer: The correct answer is "True".

Explanation:

Nephron is a functional unit of kidney. Each kidney contains a millions of nephrons. It contains small blood vessels.

It filters the blood to remove excess water and the waste product from the blood. Then, it returns the cleaned blood back to rest of the body. It selectively reabsorbs the substance such as glucose. It excretes nitrogenous waste such as urea. It removes excess salt in the form of urine.

Therefore, the given statement is true.

8 0

3 years ago

Read 2 more answers

A cat is being chased by a dog. Both are running in a straight line at constant speeds. The cat has a head start of 3.8 m. The

Mars2501 [29]

In 6 secs, the dog covers-
S=vt
8.9*6 = 53.4 m.
In the same time, the cat covers, 53.4-3.8 = 49.6 m.
Thus, speed of the cat, v= s/t,
= 49.6/6 = 8.267 m/s

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4 years ago

23. Lunar Gravity Compare the force holding a

romanna [79]

Explanation:

Given

mass of the rock is 10 kg

Force requires to hold the rock is equal to its weight

Weight is given by the product of mass and acceleration due to gravity

Weight on the earth surface

$\Rightarrow W_e=10\times 9.8\\\Rightarrow W_e=98\ N$

Weight on the moon surface

$\Rightarrow W_m=1.6\times 10\\\Rightarrow W_m=16\ N$

So, the force holding the rock on earth is approximately 6 times the force on the moon.

3 0

3 years ago

Need help ASAP

gladu [14]

Answer:

a. Gamma ray, microwaves, infrared

3 0

3 years ago

Currently, the Sun is thought to be located in the galactic _____________ about ____________ the center of the galaxy.

Currently, the Sun is thought to be located in the galactic _ about the center of the galaxy.