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3 years ago

What do we now understand to be the primary difference between normal galaxies and active galaxies?

Physics

1 answer:

MAVERICK [17]3 years ago

6 0

Answer:

active galaxies are extremely bright and travel faster than normal galaxies. The mass of active galaxies is confined to a smaller space and they have some activity in their nuclei which produces an enormous amount of energy in a very small volume of space.

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Which statements best describe the motion of Car A and Car B? Check all that apply. Car A and Car B are both moving toward the o

Lera25 [3.4K]

Answer: car b

Explanation:

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3 years ago

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Given that a pipe having a diameter of 1.5 feet and a height of 10 feet, what is the psi at 5 feet ?

grin007 [14]

Answer:

The pressure is 2.167 psi.

Explanation:

Given that,

Diameter = 1.5 feet

Height = 10 feet

We need to calculate the psi at 5 feet

Using formula of pressure at a depth in a fluid

Suppose the fluid is water.

Then, the pressure is

$P=\rho g h$

Where, P = pressure

$\rho$ = density

h = height

Put the value into the formula

$P=1000\times9.8\times1.524$

$P=14935.2\ N/m^2$

Pressure in psi is

$P=2.166167621\ psi$

$P=2.167\ psi$

Hence, The pressure is 2.167 psi.

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3 years ago

Why shadow is black in colour ?

lions [1.4K]

Answer:

Absence of light causes shadow

Explanation:

The shadow is of the black colour because it is formed by the white light from the sun. Black is the opposite colour of white. In case you use different colour of light to cast a shadow you will get a shadow of opposite colour of light used to cast shadow.

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Suppose you have a scarf that appears red when you are outside on a sunny day. Will the scarf appear red if you view it under di

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Answer:

actually no one weres the scarf in sunny ʕ•ε•ʔ

Explanation:

The colours we see are the wavelengths that are reflected or transmitted. For example, a red shirt looks red because the dye molecules in the fabric have absorbed the wavelengths of light from

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Instruments on board the trmm (tropical rainfall measuring mission) satellite show 3d images of very tall rain columns called __

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These columns are called hot towers

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