Which feature is used to classify galaxies age color shape size

Can someone help me with this but give details please? (it's a physics class)

tino4ka555 [31]

Answer:

The question is basically asking you to research a instrument that provides scientific-physical terms like sound waves. It also says to explain how different types of instruments provide different tones.(Hint: Sound waves)

5 0

3 years ago

PLEASE ANSWER ASAP I will give 30 points

Anestetic [448]

Answer:

Florence is often named as the birthplace of the Renaissance. The early writers and artists of the period sprung from this city in the northern hills of Italy. As a center for the European wool trade, the political power of the city rested primarily in the hands of the wealthy merchants who dominated the industry

Explanation:

5 0

3 years ago

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When does gravitational lensing occur? High concentrations of dark matter cause length contraction of nearby objects. The gravit

Stella [2.4K]

Answer:

A massive object (like a galaxy cluster) bends the light from an object (like a quasar) that lies behind it.

Explanation:

A massive object, like a galaxy cluster, is able to deform the space-time shape as a consequence of its own gravity, so the light that it is coming from a source that is behind it in the line of sight will be bend or distorts in a way that will be magnified, making small arcs around the cluster with the image of the background object.

This technique is useful for astronomers since they make research of faraway objects (at hight redshift) that otherwise will difficult to detect with a telescope.

4 0

4 years ago

Select the object that has the most gravitational force. a sand grain a marble a bowling ball a tennis ball

Anna35 [415]

So we want to know which object has a gravitational force of the greatest magnitude. Since gravitational force depends on the mass of the object, the object with the greatest mass will have the greatest magnitude of the gravitational force. In this case that is the bowling ball.

7 0

3 years ago

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I dont understand how to find the blanks

Amiraneli [1.4K]

The forces are:

$F_{grav} = 98,000 N$ , down

$F_{net} = 80,000 N$ , down

$F_{air}=18,000 N$ , up

Explanation:

We start by finding the force of gravity on the elephant, $F_{grav}$ , which is given by

$F_{grav}=mg$ (downward)

where

m = 10,000 kg is the mass of the elephant

$g=9.8 m/s^2$ is the acceleration of gravity

Substituting,

$F_{grav}=(10,000)(9.8)=98,000 N$

Now we know that the net acceleration of the elephant is

$a_{net}=8.0 m/s^2$ downward

We can now use Newton's second law:

$F_{net}=ma_{net}$

where $F_{net}$ is the net force on the elephant. Substituting, we find

$F_{net}=(10,000)(8.0)=80,000 N$

and it also acts downward, since it has the same direction as the acceleration.

Finally, we can write the net force on the elephant as

$F_{net}=F_{grav}-F_{air}$

where the force of gravity acts downward, while the air resistance ( $F_{air}$ acts upward. The net force also acts downward, so it has the same sign of gravity.

Substituting:

$F_{net}=80,000 N\\F_{grav}=98,000 N$

And solving, we find the air resistance:

$F_{air}=F_{grav}-F_{net}=98,000-80,000 = 18,000 N$ (upward)

Learn more about forces and Newton laws of motion:

brainly.com/question/8459017

brainly.com/question/11292757

brainly.com/question/12978926

#LearnwithBrainly

4 0

4 years ago