how did astronmers use technology to indenifty characteristic of the crab nebula

Answers

Answer 1

Answer:

technology that detects radio waves identified a pulsar at the center of the nebula

Explanation:

This detected radio source, determined to be pulse-like, was identified to be coming from a pulsating star called a pulsar. The charged particle emitted by the rapidly rotating star is emitted as synchrotron radiation in the radio spectrum. The pulsation was discovered to be at the rate of 30 times a second. Crab nebula is a nebula cloud made from a supernova

Answer 2

Answer:

B. technology that detects radio waves identified a pulsar at the center of the nebula

Explanation:

Eng 2021


Related Questions

What type of relationship where both organisms benefit

Answers

Answer: mutualism!

hope this helps! recently learned about this. :D

Make a list of objects, products, and any other items around your house where plants were involved in the production of the item. You should have a list of at least twenty items

Answers

Answer:   This is all I could think of, but I hope this helps a litttle

Explanation:

Shampoo

rubber

medicine

tea

clothes

paper

Can someone help me fill out this chart about alleles please?

Answers

Explanation:

#of individuals

80

64

56

Which scientist determined the nature of the forces that keep the planets in their orbits?


Newton

Brahe

Galileo

Copernicus

Answers

Answer:

Newton

Explanation:

Isaac Newton discovered this forces that keep the planets in their orbits

Which mechanism listed below does NOT cause evolution to occur?

Artificial Selection
Genetic Drift
Reproduction
Gene flow
Mutations

Answers

The answer is artificial selection! All of these cause evolution except that. NATURAL selection would cause evolution to occur

What happens first at each origin of replication?


A: enzymes kill viruses


B: enzymes remove bases


C: enzymes unwind DNA


D: enzymes eat nucleotides

Answers

Answer:

The answer is C.

Explanation:

At first, an enzymes called Helicase unwind the double helix in a DNA .

The changing of the rivers created more ____________ for animals

aRegeneration
bVegetation
c Erosion
d Habitats

Answers

Answer:

D) Habitats for animals.

Explanation:

It depends what the question means when it says 'the changing of the rivers'. I took it as the rivers are changing size and becoming more spread out. In that case, I chose habitats.

The more water there is, the more habitat there is for sea life.

All in all, the correct answer is D).

During photosynthesis blank energy is converted into blank energy

Answers

Answer:During photosynthesis solar energy is converted into chemical  energy

Explanation:

What would the Earth look like without radiation from the sun? *

Answers

Answer:

Without the Sun's heat and light, the Earth would be a lifeless ball of ice-coated rock. The Sun warms our seas, stirs our atmosphere, generates our weather patterns, and gives energy to the growing green plants that provide the food and oxygen for life on Earth.

Explanation:

During their early stages of development, the embryos of reptiles, birds, and mammals look very similar. The embryos of reptiles, birds, and mammals also have many of the same structures and develop in similar patterns. This suggests that reptiles, birds, and mammals... *

Answers

Answer:

share a common ancestor

Explanation:

The similarity in their embryos and embryonic development suggests that reptiles, birds, and mammals share the same ancestor.

Similarity in the structure and development of embryo is one of the evidences that is been used by scientists to support the theory of evolution of species. According to the theory of organic evolution, all organisms are on earth as a result of descent with modifications from common ancestors.

Reptiles, birds, and mammals are all vertebrates. They share some basic characteristics and are thought to have shared a common ancestor before each group took different adaptive channels leading to their  differences as they currently exist.

Whales have the vestiges of a pelvis TRUE OR FALSE

Answers

Answer: True

Explanation: The only hints of the former hind limbs are the vestiges of a pelvis and femur embedded in the body wall. One in 100,000 whales is estimated to have a slightly protruding stub of a hind limb.

If you drive at 100 m/s for 36,000 s how far will you go ?

Answers

Answer:

Distance = 3,600,000 m

Explanation:

Distance = Speed × Time

Distance = 100 × 36,000

Distance = 3,600,000 m

The water cycle gets its energy from the ___?

Answers

Answer:

the sun

Explanation:

what was the purpose of the field study? keys and kingdoms worksheet

Answers

Answer:

A field study is a general method for collecting data about users, user needs, and product requirements that involves observation and interviewing. Data are collected about task flows, inefficiencies, and the organizational and physical environments of users.

Answer:

is it correct or not?

Explanation:

Which is older the pebbles inside the rock or the rock surrounding the pebbles? Explain why the pebbles are older?
I need help with that question and is due today pls help me out I been struggling with it and having a hard time

Answers

Answer:

The pebbles inside the rock.

Explanation:

The outside of the rock would've formed around the pebbles.

The pebbles are older because they would need to be formed already in order for another solid to form around it

True or False: All living organisms have cell membranes.

Answers

Answer:

Yes ,each  living cell possess a cell membrane,which has a

semi-permeable barrier for various foreign particles.

Explanation:

warm fronts appear on weather maps in areas of

Answers

Answer:

On a weather map, a warm front is usually drawn using a solid red line with half circles pointing in the direction of the cold air that will be replaced. Warm fronts usually move from southwest to northeast. ... A cold front is the transition area where a mass of cold air moves in to replace a mass of warm air.

Explanation:

Answer:Which object is created during the formation of a star?

a nebula

a protostar

a supergiant

a supernova

Explanation:

2 Polnis
What do members of a population have in common? Select all that apply.
A. They live in the same area.
B. They have the same density
D
C. They are the same species.
D. They live at the same time.
E. They are the same size

Answers

Answer:

the answers are a, c, and d

Explanation:

a makes sense because if you are a member of a population then the other members live in the same area as you

b doesn't make sense because even though you live in the same population as someone, it doesn't mean you'd have the same density

c makes sense because the definition of population is, "a group of individuals of the same species living and interbreeding within a given area."

d makes sense since in order to be considered a member of a population you have to be living

e doesn't make sense since everyone is a different size

Members of a population have in common -

A. They live in the same area.

C. They are the same species.

D. They live at the same time.

A population is defined as a group of individuals of the same species living and interbreeding within a given area.

Members of a population often rely on the same resourcesare subject to similar environmental constraintsdepending on the availability of other members to persist over time.They are the same species

Thus, Members of a population have in common -

A. They live in the same area.

C. They are the same species.

D. They live at the same time.

Learn more:

https://brainly.com/question/2578091

Complexity is a measure of how difficult it is to understand something. What is an example of complexity in the natural world?

Answers

Answer:

Answer:

Multicellular organism is the example of complexity of the natural world.

Explanation:

Multicellular organism such as human which is made of billions of cell. Each cell perform a specific function. The function of one organ is different from the other organ. For example, brain of human is made of millions of neurons which takes instructions from brain to the organs and bring messages from organs to the nervous system in the form of electrical impulses. In short every system in our body is full of complexity.

Subirrigation requires

Answers

Subirrigation also known as seepage irrigation, is a method of irrigation where water is delivered to the plant root zone. The excess may be collected for reuse. ... Advantages are water and nutrient conservation, and labor-saving. The outfitting cost is relatively high.

Using the drop-down menus, identify whether the following definitions describe a producer, consumer,
or decomposer.
an organism that breaks down dead and decaying organisms to obtain energy
an organism that takes in or consumes other organisms to receive energy
an organism that uses the energy from the sun or inorganic substances to make its
own food
DONE

Answers

Answer:

an organism that breaks down dead and decaying organisms to obtain energy- decomposer

an organism that takes in or consumes other organisms to receive energy- consumer

an organism that uses energy from the sun or inorganic substances to make its own food- producer

The identification of the given definitions that describe the producer, consumer or decomposer is given below.

Identification of the decomposer, consumer, and producer:

In the case when the organism should be split down dead and the organism should be decayed for obtaining the energy - decomposer.

The organism should consume another organism for receiving the energy - consumer.

The organism that used the energy from the sun or the non-organic substance for making the food - producer

Learn more about organism here: https://brainly.com/question/25327080

Can somebody help with those 3 problems please

Answers

Answer:

first one is option A

second one option B

third is26 N

Explanation:

1.the law here is every action has an equal and opposite......

2. only unbalanced forces move objects from rest or of uniform motion

3.net force is the sum of forces ,if forces are in the same direction

hope this helps plz mark me brainliest

2) Option A.
Force is directly proportional to the mass. As the mass of the fuel deceases as the fuel is burnt, the force also decreases as force is directly proportional to mass, and as the force decreases, the acceleration decreases as acceleration is also directly proportional to the force, and the shuttle may eventually come to a stop due to the increasing deceleration. However, initially if the forces are kept balanced as the space shuttle and the gases exert an equal amount of force on each other in the directions opposite to each other, the object will keep on moving upwards in a constant velocity as the amount of force is also kept constant.


3) Option B.
The motion will definitely change when the forces acting on an object are unbalanced-it will start to move, accelerate or decelerate or change its direction in the direction of the net force. The object will not move at all or continue moving with the same velocity and in the same direction if the forces acting on it are balanced or zero.

4) When the forces are unbalanced and are acting on an object in the same direction, the net force will be found by finding the sum of those forces.
Net force=17+9=26 N.

I really, really hope this helps! And please mark it as brainliest.

Describe the pituitary gland. What hormones does it produce and what do they control ​

Answers

Answer:

The anterior pituitary gland produces the following hormones and releases them into the bloodstream: adrenocorticotropic hormone, which stimulates the adrenal glands to secrete steroid hormones, principally cortisol. growth hormone, which regulates growth, metabolism and body composition.

All living organisms are composed of what?​

Answers

All living organisms are composed of one or more cells.So, your answer would be Cell.

hope it helps!

Mary Shelley traveled to Switzerland so that she could find a quiet place to write her novel.
true or false

Answers

Answer:

true

Explanation:

Please help out! It would be very nice !!

Answers

Answer:D

Explanation:

Cell wall provides structure and protection

Answer:

D is the answer to the question

Sound travels as mechanical waves.

How does light travel?


as mechanical waves


as magnetic beams in a medium


as surface waves


as electromagnetic waves

Answers

Answer:

Light travels as a surface wave

Explanation:

Answer:

it's electronic waves

Explanation:

i took the test and it said that it was electronic waves not surface waves

What feature is the same in the formation of many sedimentary rocks and fossil fuel?many sedimentary rocks and fossil fuels-
A-require material to be buried and exposed to heat amd pressure.

B-are made out of organic material that stores the sun energy

C-form where there are frequent earthquakes and volcanic activity

D- are produced high in the mountains where temperatures are low

Answers

Answer:

maybe C i'm so sorry if this is wrong

Explanation:

Organic materials and silt build on top to produce fossil fuels. Heat and pressure transform organic materials into coal, petroleum, or natural gas. Therefore, option (A) is correct.

What are fossil fuels?

An extracted and burnt fossil fuel is a hydrocarbon-containing substance that naturally originated in the Earth's crust from the remnants of extinct plants and animals. Coal, oil, and natural gas are the three primary fossil fuels.

Because certain sedimentary rocks contain trapped fossil fuels, sedimentary rocks and fossil fuels are connected. As organic materials and silt build up on top over time, fossil fuels are created. The organic material undergoes a chemical shift under heat and pressure, turning it into coal, oil, or natural gas.

Learn more about fossil fuels, here:

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#SPJ5

hi i like this app is so cool

Answers

Answer:

me too I love helping people

Describe three methods used to decrease the chances that microorganisms will spoil
the food.

Answers

1. wash your food.

2. put it in the fridge.

3. Cover it up.

I'm  boredddd lol

Drying, refrigeration, and fermentation are methods used to decrease the chances that microorganisms will spoil  the food.

Food preservation are techniques or practices which prevent the growth of microorganisms and slow the oxidation of fats in foods so as to prevent spoilage.

There are different methods of food preservation. Common methods which are used are drying, refrigeration, and fermentation.

Find out more at: https://brainly.com/question/18250110

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