Which best describes internet wikis as a source of scientific information

Answers

Answer 1

Answer:

They are written or edited by anyone

Explanation:


Related Questions

If size of an image is 10 cm and the magnification produced by a mirror is +1, what will be the size of object?

Answers

Answer:

h = 10 cm

Explanation:

The magnification produced by a mirror is given by :

[tex]m=\dfrac{h'}{h}[/tex]

h' is the image size and h is the object size

We have, h = 10 cm, m = +1

So,

[tex]m=\dfrac{h'}{h}\\\\h=\dfrac{10}{1}\\\\h=10\ cm[/tex]

So, the size off the object is same as that of the size of the image i.e. 10 cm.

Use the reaction equation to answer the question
6CO2 + 6H20 - C6H12O6 + 602
The reaction equation shows a common chemical reaction. Where does this reaction commonly occur?
A
in soap mixed with oil
B
in candle wax as it burns
С
in the leaves of a plant
D
in animals digestive systems

Answers

Answer:

C

Explanation:

in the leaves of a plant where photosynthesis occurs

GO
10 20
What is one standard kilogram define in Si system

Answers

Answer:

The mass of cylinder made up of alloy of platinum iridium that is kept at international bureau of weights and measures is called one standard kilogram.

The system of seven fundamental quantities is called SI system .

How long would it take you too run the 100m sprint if from rest you accelerate at 2m/s/s for the whole race?

Answers

Answer:

10 s

Explanation:

Given:

Δx = 100 m

v₀ = 0 m/s

a = 2 m/s²

Find: t

Δx = v₀ t + ½ at²

100 m = (0 m/s) t + ½ (2 m/s²) t²

t = 10 s

The elements least likely to form bonds are found in which group?
O 15
O 16
017
O 18

Answers

The answer is group 18.

Explanation:
Group 18 is known as the Noble Gases. They are the most stable elements because they have a full outer shell of valence electrons, so they have no need to bond with other elements.

The element that is least likely to form bonds is found in group 18. Thus, the correct option for this question is D.

What is group 18 of the periodic table known?

The elements of group 18 in the modern periodic table are known as noble gases. These gases are colorless, odorless, tasteless, and nonflammable under standard conditions.

They were once labeled group 0 in the periodic table because it was believed they had a valence of zero, meaning their atoms cannot combine with those of other elements to form compounds.

Due to this fact, they would not have any ability to form bonds with other elements in order to produce compounds or molecules. They are the most stable elements because they have a full outer shell of valence electrons, so they have no need to bond with other elements.

Therefore, the element that is least likely to form bonds is found in group 18. Thus, the correct option for this question is D.

To learn more about Noble gases, refer to the link:

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Which of the following is not a way to make exercising on a cold day safer?
A. Wear gloves and thick socks.
B. Dress in several layers instead of wearing one bulky garment for warmth.
C. Drink hot tea during your workout.
D. Wear a synthetic or wool hat.
I NEED HELP ASAP FIRST ANSWER GETS BRAINLIEST

Answers

Answer:

D.

Explanation:

I think its D. because Tea during a cold workout isnt safe at all. Drinking tea while working out adds weight and you just simply dont need tea when working out.. Hope this helps man :)

C. You shouldn't exercise while drinking hot tea because you can spill it and burn yourself especially while on a treadmill.

If this helped please mark me as brainliest!

[tex]\left[\begin{array}{ccc}Thanks,\\JustSomeIdiot\end{array}\right][/tex]

An object of mass 30 kg is falling in air and experiences a force due to air resistance of 50 newtons. Determine the net force acting on the object:

Answers

Explanation:

Draw a free body diagram.  There are two forces: weight force pulling down and air resistance pushing up.

Sum the forces in the y direction:

∑F = 50 N − (30 kg) (10 m/s²)

∑F = -250 N

what is torque...........m​

Answers

Answer:

Torque is the rotational equivalent of linear force. Torque is the engine's rotational force.

Hope this helps..

Explanation:

(i feel so dumb )
10. Mrs. Wichert walked Riley for 30 minutes and a distance of 300 meters. Riley stopped often to smell things.
Which is the correct answer?

•Her speed was 10 meters/ minute
•Her speed was 9000 meters/minute
•Her average speed was 10 meters/minute
•Her velocity was 10 meters/minute

Answers

The correct answer choice is C.
Hope this helps

WILL GIVE BRAINILY TO FIRST PERSON TO ANSWER!!!!
Complete this sentence. If volume remains the same while the mass of a substance ________, the density of the substance will_______________. increases, stay the same decreases, stay the same decreases, increase increases, increase

Answers

The answer is increase.

d = m/v. if you increase the mass without changing the volume, the density will increase.

describe how changing the particles changed the atom​

Answers

Answer: During chemical changes particles do change with atoms or ions regrouping . Bonds (links) between atoms break and new ones form and energy is either given out or taken in.

Explanation:

Chemical reactions make particles to change and resulting to change atoms or ions via regrouping .

What is chemical reaction?

The chemical reaction is the reaction between two reactants that led to the formation of products.

The products are substances that forms after reaction. The reactants are the substances which are original materials.

Bonds between atoms break and make new ones. In this process, energy is either rejected or taken in.

The particle are the electrons which are shared between the atoms of same or different elements.

The electrons in the valence get donated or accepted by the atoms and form bond. When the electrons are donated, the bonds break and when electrons are accepted, bonds are formed. So, the new element or compound is formed.

Thus, the chemical reaction are responsible for change in atoms due to change in particles.

Learn more about chemical reaction.

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8
An airplane flies 8000 m in 30 seconds. Calculate the velocity of the airplane. U
(10 Points)
O 0.27 m/s
16 m/s
267 m/s
24,000 m/s

Answers

Answer:

267

Explanation:

8000/30= 266.666666667

or 267 rounded to the nearest whole

Why does stone take so long to cool?

Answers

Answer:

Stone has what's called a high thermal conductivity, which is simply a fancypants way of saying that it allows heat to flow through it quickly. For example, suppose the piece of stone in question is at room temperature, or 70 degrees. Your body likes to keep an average toasty temperature of 98.6F.

how does mass affect gravity????

Answers

The amount of gravity that something possesses is proportions to its mass and distance between Iran’s another object

For writing a scientific lab report, when you write the discussion do you need to include every single result in your data? Or do you just include a summary of your data?

Answers

Answer:

include a summary of data

Explanation:

In writing a scientific laboratory report, only the summary of the data is included in the discussion and not the entire result.

The discussion section of a lab report deals with the interpretation and explanation of findings during the course of the experiment in relation to the background information leading to the experiment/research. Hence, only the summary of the data generated is required. The detailed results are usually reported in the result section, not the discussion section.

In need of help!!!!!!

Answers

Answer:

b

Explanation:

because it fly and you need for it to drop at the right spot for them to get it

Please help me! Ill give brainliest who helps me first!!!!


What is one difference between mixtures and pure substances?
A. mixtures can be physically separated
B. mixtures are made of one type of atom
C. pure substances have no chemical bonds
D. pure substances can be physically separated

Answers

i think it’s A hope this helps
Mixtures can be physically separated (I believe)

List one benefit and one limitation of using scientific models.

Answers

Answer:

the benefit is that they can see and experiment on the model but some times the model isn't accurate resulting in immediate failure

im only 13 sorry if this is wrong i tried.

hey can anyone help me out pls!

Answers

If you try to squish a table it aint gonna move. That is because,

C. They are packed closely together.

A isn’t true.

B is true, they do vibrate, but that is NOT the reason why it doesn’t change when pressure is applied.

D is wrong because C is correct.

The friction of the water on a boat produces an acceleration of -10 m/s2. If the
boat is traveling at 30 m/s and the motor is shut off, how long does it take the boat
to slow down to 5.0 m/s?
a
2.5 s
b 2.35
c
2.2 s
d
2.0 s

Answers

Answer:2.5s

Explanation:

Idk I guessed and got it right

Friction is the force that exists between two surfaces that are sliding or attempting to slide across each other.

The acceleration produced by the friction of water is a = [tex]-10 m/s^2[/tex]

The boat takes 2.5 seconds to slow down.

What causes of friction?Surface roughness: When two rough surfaces collide, they generate frictional force or an opposing force, which can sometimes be converted into heat. Body deformation: Deformations in the body or the surface of the body in contact may cause friction during motion.Friction is the force that exists between two surfaces that are sliding or attempting to slide across each other. For example, friction makes it difficult to push a book across the floor. Friction always acts in the opposite direction that the object is moving or attempting to move.

 The equation that rules the change of velocities is:

[tex]V = V _0 + at[/tex]

Where:

a   = acceleration

Vo = initial speed

v = final speed

t    = time

The acceleration produced by the friction of water is a = [tex]-10 m/s^2[/tex] and the boat is initially traveling at v=30 m/s. When the motor is shut off, the boat will start braking until it stops. We need to find the time it takes to ready the final speed of v=5 m/s.

t = [tex]\frac{V - V_0 }{a}[/tex] = -5-30 /10 = 2.5 s.

The boat takes 2.5 seconds to slow down.

To learn more about : Friction

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1. Reflection Question: What are some actions or activities that can affect your heart rate and respiratory rate and cause either or both of them to increase or decrease?

Answers

Answer:

There are following two activities which affect heart rate and respiratory rate.

1-Exercise

2-Hiking

Explanation:

when we are exercising or hiking our heart rate and respiratory rate affected. This is because during hiking and exercising our body may need three or four time your normal cardiac output. This is because our body consuming energy during the workout and our muscles needs more oxygen. To meet the need of energy and oxygen respiration rate become fast and heart rate also increase.

What is a hypothesis?
A.
a statement that can be tested through a scientific investigation
B.
a description of the steps involved in an experiment
C.
a statement that summarizes the results of an experiment
D.
a question that cannot be scientifically tested

Answers

Answer:

A

Explanation:

a statement that can be tested through the scientific method

Match the element with its description.
Column A
1. Sodium :
2. Silicon :
3. Bromine :
4. Argon:
Column B
a. Nonreactive gas
b. Has properties of both metals and nonmetals
c. Malleable, soft, and shiny
d. Highly reactive gas
What are the matches?

Answers

Answer:

1.c

2.b

3.d

4.a

Explanation:

There are your answers

Answer:

Sodium---Malleable, soft, and shiny

Silicon---Has properties of both metals and nonmetals

Bromine---Highly reactive gas

Argon---Nonreactive gas

Can you tell me what a substance is

Answers

Answer:

Explanation:

a particular kind of matter with uniform properties.

Answer:

a particular kind of matter with uniform properties or the real physical matter of which a person or thing consists and which has a tangible, solid presence.

Explanation:

What does this indicate about the claim?

Answers

claim

[klām]

VERB

state or assert that something is the case, typically without providing evidence or proof.

"he claimed that he came from a wealthy, educated family" · [more]

synonyms:

assert · declare · profess · maintain · state · hold · affirm · avow · aver · [more]

NOUN

an assertion of the truth of something, typically one that is disputed or in doubt.

"he was dogged by the claim that he had CIA links" · [more]

synonyms:

assertion · declaration · profession · affirmation · avowal · averment · protestation · representation · contention · submission · case · allegation · pretense · asseveration

a demand or request for something considered one's due.

"the court had denied their claims to asylum"

Answer:

the first person is right at all

What is the exact mass (a.m.u) of a electron? (First correct answer get Brainiest)

Answers

Answer:

0.00054386734

Explanation:

9.1093897*10-31 kg = 0.00054386734

a. How can a spinning ball have more lift than one that is not spinning?

Answers

Answer:

It is spinning, making the ball a little more airborn than the one that isn't spinning

Answer:

A spinning ball creates a Centrifugal Force because it is given the "energy" so to speak to spin. A ball that is not moving does not need any external energy to keep it still or, in other terms, at rest.

Explanation:

The smallest units of life that make up all living things are Group of answer choices tissues organ system organs cells

Answers

Answer:

Cells is your answer

Explanation:

Cells are the basic unit of life

hope this helped you

please mark as the brainliest (ㆁωㆁ)

What is one example of thermal energy

Answers

Answer:

Solar Energy

Explanation:

Solar radiation (a form of an object) heats up our atmosphere, that's why heat is felt on earth.

What makes human travel to the other planets in our solar system difficult?

Answers

Answer:

Taking water and oxygen from Earth is rather expensive and hard to do.

Explanation:

Without water and oxygen, travel to other planets is basically impossible

Other Questions
Name a pH level that amylase andalkaline phosphatase share? A scientist claims that Fabric A is better able to resist fire than Fabric B.Which option describes an experiment that will produce evidence that willsupport or refute her claim?O A. Make detailed measurements of each type of fabric to determinethe thickness of their fibers.B. Measure how long it takes for a specific amount of Fabric A toburn up completely.O C. Hold each type of fabric over a candle flame and time w long ittakes for the fabric to start to burn.O D. Combine Fabric A and Fabric B and measure the temperature atwhich they start to burn. consider the sequence -5,1,7,13,19,25 write a recursive definition and a general formula for this sequence 5. Explain why a washing machine would be considered technology. Which programs or projects are most likely funded by taxes paid by the citizens of the United States? Select three options.constructing a highwaypublic school fundingdeveloping a vacation resortbuilding of private homesmaintaining state parks how to combine two integers Prepare a statement of cash flows for MED Corporation. (Enter your answers in thousands. Amounts to be deducted should be indicated with a minus sign.) Cash flow from Operating Activities $ Cash flow from Investing Activities $ Cash flow from Financing Activities $ Net Change in Cash and marketable securities $ Why are chronically stressed people at a greater risk for developing a number of diseases? Which statement best explains the pharaoh's role in the economy?The pharaoh only taxed the wealthy.The pharaoh owned all land and wealth.O The pharaoh provided jobs in the kingdom.The pharaoh oversaw all trade with other kingdoms. During which decade did transcontinental rail service begin in the United States?18501860 How many Native Americans were here before Columbus landed in 1492? Find the value of x in each case: During the summer months the water level in Marthas pool decreases by about 1/2 inch each day due to evaporation which equation shows the approximate total change in inches to the water level in a pool after 30 summer days Without using a calculator, fill in the blanks with two consecutive integers to complete the following inequality.\, To which place value is the number rounded?8.293 to 8.29 aones btenths chundredths dthousandths What is 17% of 425=? factors of 4x^3-14x^2+12x There are 60 inches in 5 feet. How many inches are in 8 feet?63 inches72 inches96 inches80 inches GPS (the Global Positioning System) is a tool that is used toA. create satellite images from the atmosphereB. find locations and navigate between placesC. take aerial photos from airplanesD. forecast weather using radar what is 8653 8975??????????????????????????????