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Write a paragraph that explains the differences among incandescent, fluorescent, and laser light.

Answers

Answer 1

Answer:

An incandescent light bulb works by heating a filament in the bulb. Fluorescent light is a bright light produced by electricity flowing through a tube filled with ionized gas. Fluorescent light bulbs are more energy-efficient than incandescent bulbs.

Explanation:


Related Questions

Models can be used to make predictions .
truth or false ?

Answers

Answer:

true

...................

The answer would be true hope this helps!

Expressed to the correct number of significant figures, the sum of two masses is 445.2 grams. Which two masses produce this answer?
a) 210.10g+ 235.00g
b) 210.100g + 235.10g
c) 210.1g + 235.1g
d) 210.10g + 235.10g

Answers

Answer:

All except a

Explanation: I like math. Pls mark brainliest.

The two numbers presented in the options, B, C, and D give a sum of 445.2 grams. So the correct options are B, C, and D.

What are significant figures?

The number that is given as digits is established using significant figures. A significant depiction of numbers is carried by these digits. Frequently, significant numbers are employed in place of figures. By counting all of the values beginning with the first non-zero digit on the left, we may determine the number of significant digits. 13.56, for instance, has four significant digits.

The crucial or key digits that accurately represent the meaning of a certain number are known as the significant figures of that number. 7.864 contains four significant digits, for instance. These huge amounts give the accuracy of the numbers. Additionally, they are known as important digits.

Therefore, the correct options are B, C, and D.

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empirical formula of c8h14

Answers

Answer:

C4H7

Explanation:

Empirical formula is defined as the  simplest ratios of atoms present in the compound.

The empirical formula for C8H14 is C4H7 as if you multiply each coefficient of C4H7 by 2, it will become C8H14. The chemical name of C8H14 or C4H7 is 1-Methylcycloheptene.

Hence, the correct answer is "C4H7".

how much empty space was there in the medium-sized rock sample​

Answers

Answer:

I'm assuming this is from a lab that you did - in which case, I can't really help you out here.

Explanation:

Nah I’m going to have to say that it is 27

I need some help with with question:

How could you prepare 100 ml of a 0.40 mol/L of MgSO4 solution from a stock solution of 2.0 mol/L MgSO4. And then how would u prepare it?

Answers

Answer:

C1V1=C2V2

C1 is 2.0mol/l

V1=?

C2=.4mol/L

V2=100ml or for this 0.1L

V1 is 20ml

Best way to prepare this is to measure out 20ml of the 2 molar solution and add 80mL to it to get to 100mL

Explanation:

If you have 3 moles of calcium carbonate, how many grams of calcium bicarbonate are formed?

Answers

Answer:

hhjcioz xlioyudiyyxyisrupautwtritu regards Roy

Help please!! I'll name you brainliest!!

Answers

Answer:

MgO

Explanation:

Mars have more gravity than earth?

True or false?

Answers

Answer:

false

Explanation:

earth is larger than mars so it has more gravity

Answer: false

Explanation:

the empirical formula is C6H6O.vapour density is 47.find the molecular formula​

Answers

Answer: The molecular formula will be [tex]C_6H_6O[/tex]

Explanation:

Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.  

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.

The empirical formula is [tex]C_6H_6O[/tex]

The empirical weight of [tex]C_6H_6O[/tex] = 6(12)+6(1)+1(16) = 94 g.

The molecular weight = [tex]2\times \text{vapour density}=2\times 47=94[/tex]

Now we have to calculate the molecular formula.

[tex]n=\frac{\text{Molecular weight}}{\text{Equivalent weight}}=\frac{94}{94}=1[/tex]

The molecular formula will be=[tex]1\times C_6H_6O=C_6H_6O[/tex]

Will give brilliantiest!!
can energy produce more carbon dioxide?

Answers

different fuels emit different amounts of carbon dioxide in relation to the energy they produce when burned to analyze

84.9 g of solid iron reacts with oxygen gas forming iron(III) oxide. How many moles of oxygen will react

Answers

Answer:

1.14 moles of oxygen will react

Explanation:

The balanced equation of reaction between iron and oxygen is  

4 Fe + 3 O₂  → 2 Fe₂O₃

By stoichiometry of the reaction (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of each compound participate in the reaction:

Fe: 4 molesO₂: 3 molesFe₂O₃: 2 moles

The molar mass of iron being Fe 55.85 g/mole, then the following amount of mass reacts by stoichiometry: 4 moles* 55.85 g/mole=223.4 g

You can apply the following rule of three: if by stoichiometry 223.4 grams of Fe react with 3 moles of O₂, 84.9 grams of Fe react with how many moles of O₂?

[tex]moles of O_{2} =\frac{84.9 grams of Fe*3 moles ofO_{2} }{223.4 grams of Fe}[/tex]

moles of O₂= 1.14 moles

1.14 moles of oxygen will react

Which statement best compares the melting points of magnesium and sodium?

a
Magnesium has a higher melting point because it contributes one additional electron per atom than sodium in the electron sea.
b
Sodium has a higher melting point because it contributes one fewer electron per atom than magnesium in the electron sea.
c
Sodium has a higher melting point because it contributes two fewer electrons per atom than magnesium in the electron sea.
d
Magnesium has a higher melting point because it contributes two additional electrons per atom than sodium in the electron sea.

Answers

A because according to electron sea theory magnesium shares two valence electrons in electron sea while sodium shares one suggesting that magnesium has stronger metallic bond than sodium so breaking metallic bond in magnesium will require more energy as compared to breaking metallic bond in sodium

The melting point of magnesium is higher than the melting point of sodium because it contributes two additional electrons per atom than sodium in the electron sea. Thus option d is correct.

What is melting point?

Melting point of a substance is the temperature at which it converts from solid state to liquid state where, the two phases are in equilibrium. Melting point is affected by the bond type, molecular weight, temperature and pressure.

Melting point of elements increases along a period because the atomic size is decreasing along the period and molecular weight is increasing. Thus, the nuclear attractive pull increases resulting in higher energy needed to break the attractive force.

Magnesium is 12th element and sodium is 11th element. Thus magnesium is smaller than sodium and have one more electron than sodium. Thus magnesium have high molecular weight and high nuclear attraction leads to its higher melting point.

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C6H12O6 O3 NF3 Co KNO3 H2 CO

Which one of these are molecules list all that apply

Answers

Oh wow , what grade are you in ukliblo ?


How does the nervous system work with the digestive system?

A: The muscular and nervous systems enable the involuntary breathing mechanism.
B: It doesn't
C: The enteric nervous system's network of nerves, neurons and neurotransmitters extends along the entire digestive tract - from
the esophagus, through the stomach and intestines, and down to the anus.
D: Gets nutrients (good) from food and hands it over to the blood

Anyone help I’m failing :(

Answers

Answer:

Enteric Nervous System

The enteric nervous system (ENS) is a subdivision of the autonomic nervous system (ANS) that directly controls the gastrointestinal system.

LEARNING OBJECTIVES

Describe the structure and function of the enteric nervous system (ENS)

KEY TAKEAWAYS

Key Points

The enteric nervous system (ENS), which is embedded in the lining of the gastrointestinal system, can operate independently of the brain and the spinal cord.

The ENS consists of two plexuses, the submucosal and the myenteric. The myenteric plexus increases the tone of the gut and the velocity and intensity of contractions. The submucosal plexus is involved with local conditions and controls local secretion, absorption, and muscle movements.

While described as a second brain, the enteric nervous system normally communicates with the central nervous system (CNS) through the parasympathetic (via the vagus nerve ) and sympathetic (via the prevertebral ganglia) nervous systems, but can still function when the vagus nerve is severed.

The ENS includes efferent neurons, afferent neurons, and interneurons, all of which make the ENS capable of carrying reflexes and acting as an integrating center in the absence of CNS input.

The ENS contains support cells, which are similar to the astroglia of the brain, and a diffusion barrier around the capillaries surrounding the ganglia, which is similar to the blood –brain barrier of cerebral blood vessels.

Key Terms

enteric nervous system: A subdivision of the peripheral nervous system that directly controls the gastrointestinal system.

EXAMPLES

The second brain of the enteric nervous system is the reason we get butterflies in our stomach or need to use the restroom more frequently when we are nervous and/or under stress.

The gastrointestinal (GI) system has its own nervous system, the enteric nervous system (ENS). Neurogastroenterology is the study of the enteric nervous system, a subdivision of the autonomic nervous system (ANS) that directly controls the gastrointestinal system. The ENS is capable of autonomous functions such as the coordination of reflexes.

Although it receives considerable innervation from the autonomic nervous system, it can and does operate independently of the brain and the spinal cord. The ENS consists of some 100 million neurons, one-thousandth of the number of neurons in the brain, and about one-tenth the number of neurons in the spinal cord. The enteric nervous system is embedded in the lining of the gastrointestinal system.

Ganglia of the ENS

The neurons of the ENS are collected into two types of ganglia:

The myenteric (Auerbach’s) plexus, located between the inner and outer layers of the muscularis externa

The submucosal (Meissner’s) plexus, located in the submucosa

The Myenteric Plexus

The myenteric plexus is mainly organized as a longitudinal chains of neurons. When stimulated, this plexus increases the tone of the gut as well as the velocity and intensity of its contractions. This plexus is concerned with motility throughout the whole gut. Inhibition of the myenteric system helps to relax the sphincters —the muscular rings that control the flow of digested food or food waste.

The Submucosal Plexus

The submucosal plexus is more involved with local conditions and controls local secretion and absorption, as well as local muscle movements. The mucosa and epithelial tissue associated with the submucosal plexus have sensory nerve endings that feed signals to both layers of the enteric plexus. These tissues also send information back to the sympathetic pre-vertebral ganglia, the spinal cord, and the brain stem.

This is an illustration of neural control of the gut wall by the autonomic nervous system and the enteric nervous system. A sensory neuron is shown to stimulate the nerves in the submucosal and myenteric plexuses, which are connected to nerves in the sympathetic and parasympathetic nervous systems. The sensory neuron is also shown signal the ganglia and central nervous system.

Neural control of the gut: An illustration of neural control of the gut wall by the autonomic nervous system and the enteric nervous system.

Function and Structure of the ENS

The enteric nervous system has been described as a second brain. There are several reasons for this. For instance, the enteric nervous system can operate autonomously. It normally communicates with the central nervous system (CNS) through the parasympathetic (e.g., via the vagus nerve) and sympathetic (e.g., via the prevertebral ganglia) nervous systems. However, vertebrate studies show that when the vagus nerve is severed, the enteric nervous system continues to function.

Explanation:

the answer is A:The muscular and nervous systems enable the involuntary breathing mechanism

Is barium hydroxide Ba(OH)2 or is BaOH?

Answers

Answer:

What is the charge on the barium ion and what is the charge of the hydroxide ion.

Explanation:

To get the correct formula they have to add to zero over all.

Baking soda has a pH of 8. Its a(n) _________ substance
Acid
Neutral
Alkaline
Powdery
(god bless!! have a wonderful and blessed day!!! i love you!! and dont forget no matter what god loves you too!!!

Answers

Answer:

it's an acid

Explanation:

because itis soda

What are the 3 Newton laws

Answers

Answer:

The laws are: (1) Every object moves in a straight line unless acted upon by a force.

(2) The acceleration of an object is directly proportional to the net force exerted and inversely proportional to the object's mass.

(3) For every action, there is an equal and opposite reaction.

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Find the mass of a person walking west at a speed of 0.8 m/s with momentum of 52.0 kg*m/s west.

Answers

Answer:

12 preguntas y no te sabes ni una sola valla el mundo se está acabando

Answer:

65 kg

Explanation:

m = p ÷ v

m= 52 ÷ 0.8

m = 65 kg

Which organism is a producer? A:owl B:mouse C:grass D:snake please somebody help me

Answers

Answer:

I think it's C. Grass. :)

It would be C. grass

blood plasma for average adults has a volume of 3100mL. if the density of plasma is 1.020 g/mL, what mass of plasma is in the average adult?

Answers

Answer:

Noseeeeeee

Explanation:

Eeeeeeeeeee

HELP ASAP PLEASE WILL GIVE 12 points

A. Which of the following reaction mixtures will produce
hydrogen more quickly at room temperature:

(i) zinc granules + dilute nitric acid?
(ii) zinc powder + dilute nitric acid?

B. Give an explanation of your answer to a.

C. Suggest two other methods by which the speed of
this reaction can be altered.

Answers

Answer:

zinc powder + dilute nitric acid

Decrease the temperature in Exothermic reactions (Reactions that release energy, or become hot) Add a catalyst (A substance that reduces activation energy, speeding up the reaction) Increase the concentration of reactants. Increase the concentration of catalysts

Explanation:

Brainliest?


While driving down the road, a tiny hummingbird hit the windshield of
Maria's car. This is a clear case of Newton's 3rd law of motion. The
hummingbird hit the car and the car hit the hummingbird. How do the
forces on the hummingbird and the windshield compare?*
The forces are equal and opposite.
The force on the windshield is greater
The force on the hummingbird is greater
The force on the hummingbird is less than that of the windshield.

Answers

Answer:

2

Explanation:

Answer:

a

Explanation:

i just took it

Dona is attempting to make an electromagnetic to pick up old nails in her driveway. Which of these materials would be best to us for the core to make the strongest electromagnetic to pick up the most nails?

Answers

Answer:

The materials would be best to us for the core to make the strongest electromagnetic to pick up the most nails is described below in detail.

Explanation:

Use a couple of wire strip-pers to exclude some centimeters of insulation from every end of the cable. Skillfully cover the cable around the nail. The more cable you enclose around the nail, the more effective your electromagnet will be. Compose certain that you leave sufficient of the cable unwrapped so that you can connect the battery.

The water cycle describes the movement of water on Earth. Water in oceans and lakes evaporates and turns into water vapor. This water vapor condenses and forms clouds which produce precipitation. Precipitation falls all over the Earth's surface. The water eventually comes back to the oceans through run-off. Which steps in the water cycle carry water out of an ocean and into a freshwater lake?
A. Evaporation and precipitation
B. Rivers and streams
C. Underground tunnels
D. Condensation and run-off

Answers

Answer:

c. Underground tunnels

Explanation:

Yes, water below your feet is moving all the time, but, no, if you have heard there are rivers flowing below ground, that is not true. Water moves underground downward and sideways, in great quantities, due to gravity and pressure. Eventually it emerges back to the land surface, into rivers, and into the oceans to keep the water cycle going.

Note: This section of the Water Science School discusses the Earth's "natural" water cycle without human interference.

The steps in the water cycle that carries water out of the ocean into a freshwater lake are rivers and streams.

What is the water cycle?

The water cycle is used to describe the movement of water in the ecosystem. It involves the various processes through which water can move in the universe.

The steps in the water cycle that carries water out of the ocean into a freshwater lake are rivers and streams.

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please help which one is it it’s due in 1 hour

Answers

Answer:

carbon monoxide

Explanation:

I'm not sure but I think

14. How many liters would 5 moles of oxygen gas take up?
a.0.22L
b.112
c.27.4L
d.55L​

Answers

Answer:

a 0.22L

Explanation:

Answer:

A

Explanation:

1 moles of oxygen is 0.044L

What happens when a cold drink sits in a hot room? A) It remains coldincorrect answer B) It gets warmerincorrect answer C) It starts boilingincorrect answer D) It starts freezingincorrect answer

Answers

Answer:

its B

Explanation:

Petroleum is a mixture of many alkanes. The alkanes are separated and purified at oil refineries. What process decribes what happens in an oil refinery?

Answers

Answer:

Fractional distillation

Explanation:

The process of separating petroleum products into its fractions is called fractional distillation.

Fractional distillation is a method of separating a mixture of substances based on the differences in their boiling points.

Petroleum is a mixture of hydrocarbons separated in a large fractionation tower having many trays maintained at different temperatures.

As the vapor containing the petroleum mixture ascends the fractionation tower, the mixture is separated at each tray to yield the various fractions of petroleum.

What is the Ka of a 0.479 M
solution of acetic acid
(CH3COOH) with a pH of 4.76?
r

Answers

Answer:

6.31x10^-10

Explanation:

Answer: 6.31 x 10^-10

Explanation:

A group of 6 students was asked, "How many hours did you watch television last week?" Here are their responses.
7,9,4,13,13,16
Find the mean number of hours for these students.
If necessary, round your answer to the nearest tenth.

Answers

Answer:

10.3

Explanation:

Other Questions
QUESTION 2At which stage of the cell cycle is the cell NOT dividing?anaphasemetaphasetelophaseinterphaseO prophaseOUESTION 2 The figure below is parallelogram. Find the measure of thvariable. Although Communism and Socialism aim to serve society in similar ways how do they differ in the way they govern? Select one: A. Communism decentralizes power in the form of democracy. B. Communism centralizes power in the form of totalitarianism. C. Communism decentralizes power in the form of republicanism. D. Communism centralizes power in form of monarchism. Craftmore Machining produces machine tools for the construction industry. The following details about overhead costs were taken from its company records.Production ActivityIndirect LaborIndirect MaterialsOther OverheadGrinding$320,000Polishing$135,000Product modification600,000Providing power$255,000System calibration500,000Additional information on the drivers for its production activities follows.Grinding13,000 machine hoursPolishing13,000 machine hoursProduct modification1,500 engineering hoursProviding power17,000 direct labor hoursSystem calibration400 batchesRequired1. Classify each activity as unit level, batch level, product level, or facility level.2. Compute the activity overhead rates using ABC. Form cost pools as appropriate.3. Determine overhead costs to assign to the following jobs using ABC.Job 3175Job 4286Number of units200 units2,500 unitsMachine hours550 MH5,500 MHEngineering hours26 eng hours32 eng. hoursBatches30 batches90 batchesDirect labor hours500 DLH4,375 DLH4. What is the overhead cost per unit for Job 3175? What is the overhead cost per unit for Job 4286?5. If the company used a plantwide overhead rate based on direct labor hours, what is the overhead cost for each unit of Job 3175? Of Job 4286?6. Compare the overhead costs per unit computed in requirements 4 and 5 for each job. Which method more accurately assigns overhead costs? How will the nation benefit from the system? The entire nation will prosper. One region prospers more than the others. The debate would be ended. How is the messengers news good and bad? An estuary that normally shelters juvenile fish and other organisms has become filled with silt and pollution. How will this affect the age distribution of the populations? Which of the relations has a domain of {-5, 0, 5}?A. {(-5, 5), (0, 5), (5,5)}B. {(0, -5), (0, 0), (0, 5)}C. {(-5, 0), (0, 5), (1, 0)} 1. lara but a dress that originally cost 575 with 20% discount how much did lara pay for the dress 2. a salesman sells a car for 860,000 if you receives a commission of 15% how much will be his commission What is the active ingredient in marijuana? HEY CAN ANYONE PLS ANSWER DIS!! help Ill give brainliest A tree casts a shadow 38 m long.At the same time, the shadow cast by a 37 cm tallstatue is 75 cm long.Find the height of the tree. Use correct units. Sam wants to make a sketch of the white house with a scale factor of 2 inches to 15 feet. She knows that the white house is about 85 feet wide and 152 feet long. What will the width and height of her model be? RIGHT ANSWERS ONLY PLEASE. I HAVENT FOUND A GOOD ANSWER YETWhich is the best thesis for an essay about how Greg changes from the beginning of The Treasure of Lemon Brown to the end?Greg gets along better with other people at the end of the story because he leans a valuable lesson from fighting the thugs with Lemon Brown. At the beginning of the story, Greg and his father dont get along. Then Greg talks to Lemon Brown. His feelings about his father are different after that.At the beginning of the story, Greg is angry and resentful. But his interactions with the thugs and Lemon Brown alter how he feels about others.Greg appreciates his father more at the end of the story because Lemon Brown helps him understand how important family is. 7. Which of the following best explains the economic advantage of the type of farm-produced goodsshown in the images?a. Compared to fresh produce, these packaged agricultural goods significantly increase the grossnational income that is sourced from industrial production and bring financial wealth to farmersb. Compared to plain milk or fresh fruit, these value-added agricultural goods significantlyincrease the price of the farm products sold and increase earnings for farmersC. Compared to factory-made dairy products and condiments, these preservative-free goods havea decreased shelf life, which increases the prices of the goods soldd. Domestication of plants and animals began in the Fertile Crescent and the process diffused aspastoral nomads migrated to other areasDomestication of plants and animals began in the Indus River valley and the process diffused toother areas across trade routese (-10,-8), (8, 10) what the slope for this plz How did the outcome of the Civil War and Reconstruction affect NC economically, socially and politically? " After Sophia eats her body breaks down the food to use as an engery source when she runs this is an example of which type of engery conversion how many 1/2 inch cubes does it take to fill a rectangular prism with a length of 1 inch, a width of 2 inches and a height of 3 inches