Answer:
x
Explanation:
22 °C to K (approximate room temperature)
Answer:
295.15 i think
Explanation:
3(6+7)=
i need help on it
39..........................
Answer:
39
Explanation:
Why do you think the placebo effect works
Answer:
The placebo effect is when an improvement of symptoms is observed, despite using a nonactive treatment. It’s believed to occur due to psychological factors like expectations or classical conditioning.
Research has found that the placebo effect can ease things like pain, fatigue, or depression.
hope this will help u :)
If you wanted to find the chemical element of an atom, you would need to...
a. know how many electrons it has
b. know how many protons it has
c. know its melting temperature
d. see it with a microscope
Answer:
Know how many electrons it has
If you wanted to find the chemical element of an atom, you would need to know how many electrons it has. So the correct option is A.
What is a chemical element?Any compound that cannot be broken down into simpler chemicals by regular chemical processes is referred to as a chemical element or element. The building blocks of which all matter is made are called elements.
There are 118 chemical elements that are currently recognized. About 20% of them have only been created synthetically in the lab and are only known because they do not exist in nature or are only present in trace levels.
Of the known elements, 11 are gases under normal circumstances (hydrogen, nitrogen, oxygen, fluorine, chlorine, and the six noble gases), 2 are liquids (two more, cesium and gallium, melt at slightly above or around room temperature), and the remaining 7 are solids.
Compounds are made of a number of more complex substances that are formed when elements mix with one another. Nearly all conceivable compounds have been found, and there are likely millions more that have yet to be identified.
When two or more elements come together to create a compound, they lose their individual identities and the resultant substance exhibits properties that are very different from those of the original constituents.
Therefore the correct option is A
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Which of the following describes the expected solubility of benzoic acid?
O Because it is an acid, it should be soluble in aqueous acids
O Because it is an acid, it should be soluble in aqueous bases
O Because it is an acid, it should be soluble in water
O Because it is an acid, it should be soluble in hexane
A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The INDEPENDENT variable is *
5 points
the size of the baby alligators
the temperature
the incubator
the gender of the alligator
Answer:
The temperature of the incubator.
Explanation:
The temperature of the incubator would be the independent variable in this scenario because it is what controls the dependent variable. The gender of the alligator depends on the temperature of the incubator.
hope this helps!
What are three properties of inertia?
For energy calculations, height must be measured in the unit of *
mass=40g
volume=20mL
what is the density
Answer:
2g/mL
Explanation:
Density = m/V
m = massV = volumeDensity = 40g/20mL = 2g/mL
when a human female reaches a certain as then vaginal bleeding occurs for a few days after regular intervals of time:
(a) what is this process known as (i) in scientific terms, and (i) in everyday language?
(b) what is the human female sad to have attend at this stage?
(c) what does the onset of this process in human female signify?
(d) at what particular event in the life of a human female this process stops temporarily but starts again?
(e) what name in given to the event when this process stop permanently?
a) Mentruastion in Sciencetific Terms.
Periods in Everyday Language.
b) Well, yea Sad. It's an Awful Period in Life, I mean, There are Certain Restriction That Needs to be Followed during that time. it's not easy..
c) "Sexual Maturity" in Human Female Body.
d) During Pregnancy it stops Temporarily and Continues after That.
e) Menopause is the name Given For the Event to stop Permanently. usually at the age of 40-45.
_______________________________
This Particular Event is Common in all Females, we undergo this Stage at 10-12.
[tex] [/tex]
Answer:
Hii dear.....wnt be my frnd???
Why type of data must be plotted on a graph for the slope of the line to represent density?
Answer:
you need data that has at least one independent variable in order to plot a graph for a slope of the line
Explanation:
Why are scientists interested in learning more about dark matter
Answer:
Dark matter and dark energy raise some of the biggest questions in the study of space and physics. Lots of scientists are using observations and math to figure out what these are. This will help us understand more about our amazing universe, where there is always more to discover and more to learn.
Some of the most important concerns in the study of space and physics are raised by dark matter and dark energy. Many scientists are utilizing math and observations to determine what they are.
What is dark matter?
Dark matter is a part of the cosmos that can only be detected by its gravitational pull, not by its brightness. The universe's matter-energy ratio is made up of 30.1 percent dark matter, 69.4 percent dark energy, and "regular" visible matter (0.5 percent).
The existence of dark matter also referred to as the "missing mass," was first suggested by Swiss-American astronomer Fritz Zwicky, who found that the mass of all the stars in the Coma cluster of galaxies only made up about 1% of the mass required to prevent the galaxies from escaping the cluster's gravitational pull in 1933.
Until the 1970s, when American astronomers Vera Rubin and W. Kent Ford observed a similar phenomenon, the existence of this missing mass was unknown. At that time, the mass of the stars visible in a typical galaxy was only about 10% of the mass needed to keep those stars orbiting the galaxy's center.
Generally speaking, the rate at which stars circle the galactic nucleus is independent of how far away from the nucleus they are; in fact, orbital velocity either remains constant or slightly rises with distance instead of decreasing as would be predicted.
This requires a linear relationship between the mass of the galaxy inside the orbit of the stars and their separation from the galaxy's centre. However, this interior material emits no visible light, thus the term "dark matter."
Therefore, many scientists are utilizing math and observations to determine what they are.
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When students observed boiling water, they noticed the temperature increased. What conclusion could they draw from this observation? (1 point)
The average kinetic energy decreased.
The average kinetic energy remained the same.
ОООО
The molecular motion decreased.
The molecular motion Increased.
Answer:
the molecular motion increased. hope this helps
Explanation:
- Zombie
The conclusion that could they draw from this observation is that molecular motion increased. The correct option is D.
What is motion?
Motion is changing the position of an object when any force is applied to it. Motion means the object is moving. The motion of molecules means the molecules of an element are moving. This happens due to an increase in temperature.
Boiling is the term for the process of a liquid turning into a gas when heated to a constant temperature. The molecular motion is controlled by the kinetic energy of the molecules.
The kinetic energy of liquid molecules increases with heating. These molecules begin to move faster and farther apart. So the conclusion will be molecular motion.
Thus, the correct option is D. The molecular motion increased.
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Why are there only two elements in the first period of the periodic table? (1 point)
A. Because only two electrons can fit in the first orbit around the nucleus, and each period on the table is organized by number of orbits
B. Because the first two elements both start with H and are grouped together
C. Because the next elements have other things in common and they need to be arranged together
D. Because each row increases in atomic mass by a specific number so anything over five is in the second
Answer:A. Because only two electrons can fit in the first orbit around the nucleus, and each period on the table is organized by number of orbits
Explanation: This is because the The periodic table of elements is designed according to the number of shells from up going down together with their increasing number of atomic numbers, Now only Hydrogen and Helium have one shell and are therefore the only two elements that should be placed in the first period .
Also note that in filling of their s-orbital, the maximum number of electrons that it can contain is 2 as in 1s²
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For the following, round off each number to three significant digits, and then express it in scientific notation.
1) 3.478
2) 65.345
3) 4444
4) 3.1416
5) 55555
6) 45.35455
Answer:
1) 3.478 3.48
2) 65.345 6.53x10^1
3) 4444 4.44x10^3
4) 3.1416 3.14
5) 55555 5.56x10^4
6) 45.35455 45.4x10^1
Explanation:
12579 nm rounded to 3 significant figures is
[tex]\\ \sf\longmapsto 12579nm[/tex]
[tex]\\ \sf\longmapsto 12579\times 10^{-9}m[/tex]
[tex]\\ \sf\longmapsto 1257.9\times 10^{-8}m[/tex]
[tex]\\ \sf\longmapsto 12.5\times 10^{-6}m[/tex]
[tex]\\ \sf\longmapsto 12.5\mu m[/tex]
Answer:
1.26e-5
Explanation:
Change 12579 nm to meters first, it becomes 1.2579e-5, then rounding it to 3 significant figures becomes 1.26e-5.
What is the length of a rectangle with width 10 in. and area 45 in.2
A trinnalo hac height aft and area 32 ft2 What is the length of its b-
Possible answer could be 900 or 450.
an object is traveleing at a speed of 7.500.0 cm/sec. what is this value in km/day
Answer:
1 cm » 0.00001 km
1 sec » 1/86400 days
[tex]7500 {cm \: sec}^{ - 1} = \frac{75 00\: cm}{1 \: sec} \\ \\ = \frac{7500 \times 0.00001 \: km}{(1 \times \frac{1}{86400}) \: day } \\ \\ = { \boxed{ \boxed{6480 \: km \: {day}^{ - 1} }}}[/tex]
Describe the process of making the four major macromolecules.
Answer:
Proteins, carbohydrates, nucleic acids, and lipids are the four major classes of biological macromolecules—large molecules necessary for life that are built from smaller organic molecules. Macromolecules are made up of single units known as monomers that are joined by covalent bonds to form larger polymers.
Explanation:
Have a great day!
Answer:, , nucleic acids, and lipids are the four major classes of biological macromolecules—large molecules necessary for life that are built from smaller organic molecules. Macromolecules are made up of single units known as monomers that are joined by covalent bonds to form larger polymers. I forgot to add carbohydrates and proteins also my bad
i just started learning aboit this too
Explanation:
What are the 2 characteristics of all matter
fill in the blank
7.95 x 10^7 = ? x 10^6
[tex] \large \mathfrak{Answer : }[/tex]
[tex]7.95 \times 10 {}^{7} = \boxed{79.5} \times 10 {}^{6} [/tex]I hope it helped...
Answer:
correct answer is 7.95*10^7=79.5*10^6
Can someone do this for me? Pleaseeeee I’m very busy.
The directions tell you what to do.
Answer:
in number 7 its Gas because the molecules are afloat and/or moving rapidly.
Explanation:
which is an example of a polymer?
A. Diamond
B. Cellulose
C. Sodium Chloride
D. Carbon Monoxide
Answer:
diamond
Explanation:
need this please help me
Answer:
Newton’s second law can be formally stated as,
The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object..
Application of Second Law
The application of the second law of motion can be seen in identifying the amount of force needed to make an object move or to make it stop. Following are a few examples that we have listed to help you understand this point:
Kicking a ball
When we kick a ball we exert force in a specific direction, which is the direction in which it will travel. In addition, the stronger the ball is kicked, the stronger the force we put on it and the further away it will travel.
Pushing a cart
It is easier to push an empty cart in a supermarket than it is to push a loaded one. More mass requires more force to accelerate.
Two people walking
Among the two people walking, if one is heavier than the other then the one weighing heavier will walk slower because the acceleration of the person weighing lighter is greater.
2. Metric Conversion: Which units are equivalent (the same) as 75g? (Pick 3)
(1 Point)
A. 7500 mg
B. 750 dg
C. 7.5 dag
D .075 kg
Answer:
0.075 kg
750 dg
7.5 dag
Explanation:
1 kg = 1000 g
So, 0.075 kg = (0.075 × 1000)g = 75 g
1 dg = 0.1 g
So, 750 dg = (750 × 0.1) g = 75 g
1 dag = 10 g
So, 7.5 dag = (7.5 × 10) g = 75 g
I NEED THE ANSWER QUICKKK!!!
Match each step of the scientific method with its matching example.
Match Term Definition
Analysis A) Based on what other scientists have done, algae life cycles are affected by light.
Research B) Under the same temperature and water conditions, green algae is grown under natural light, blue light, and green light.
Conclusion C) The data recorded in the experiment supports the hypothesis about how algae reproduce.
Experiment D) The growth of green algae is recorded every day for several weeks and compared.
Answer: This is hard to do accurately, but here is my best assessment.
Explanation:
Experiment: B - describes how the experiment was done
Conclusion: A - The data support the prevailing hypothesis
Research: D - This is what we analyzed
Analysis: C - We compared the data
why is liquid wax transparent, while solid wax is opaque?
Answer:
hope this helps
Explanation:
it has to do with crystallization in the wax. When solid, the long alkyl chains align and crystallize, and these crystallites scatter light which leads to higher opacity. When heated, the crystallites melt, and the resulting amorphous liquid no longer scatters light.
How does mercury negatively affect human health?
Answer:
The inhalation of mercury vapour can produce harmful effects on the nervous, digestive and immune systems, lungs and kidneys, and may be fata
Explanation:
What is the frequency for electromagnetic radiation with a wavelength of 3.10x10^-7 m?
Answer:
I have the same thing it's hard
4. Write conversion factors for each equality.
a. 1 m3 = 1 000 000 cm3
b. 1 in. = 2.54 cm
c. 1 ug = 0.000 001 g
d. 1 Mm = 1 000 000 m
Answer:
Conversion factors are defined as an ‘arithmetical multiplier’ in which one quantity expressed in one unit is equivalent to the quantity expressed in another units. The International System of Units have developed a system of measurement, which can be used worldwide in their derived forms.
Explanation:
Conversion factors are used to change one of units in another form that are equivalent. For example,
[tex]\begin{aligned}1^{3} &= 1000000 \; \text {cm}^{3} \\&= 10^{6} \text {cm}^{3} }\end{aligned}[/tex]
Also,
Converting [tex]1\;\text{cm}^{3}[/tex] into [tex]\text {m}^{3}[/tex], the equation will be written as:
[tex]\begin{aligned}1\text{cm}^{3} &= \dfrac{1}{1000000 \; \text {m}^{3} \\\\&= 10^{-6} \text {m}^{3} }\end{aligned}[/tex]
Similarly,
[tex]1\;\text {inch}&=\; 2.54 \;\text{cm}[/tex]
The value of one inch in centimetres is 2.54 centimetres. Therefore, converting the centimetres into inches, the conversion factor will be:
[tex]1\;\text{cm} = 0.393 \;\text{inches}[/tex]
The conversion factor for 1 microgram to grams is 0.000001. now for converting grams into micrograms, the conversion factors will be:
[tex]1 \;\text{gram} = 1000000 \;\text{micrograms}[/tex]
Similarly, for the next conversion factor, [tex]1\;\text{ megametre}& = 1000000 \; \text{meter}[/tex]. The conversion factor for the meter to megametre will be:
[tex]\begin{aligned}1\text{\;m}} &= \dfrac{1}{1000000 \; \text {Mm} \\\\&= 10^{-6} \text {Mm}} }\end{aligned}[/tex]
Conversion factor is simply the number that converts a unit to another unit. The conversion factors are:
[tex]10^6[/tex] for [tex]m^3[/tex] to [tex]cm^3[/tex][tex]2.54[/tex] for [tex]in[/tex] to [tex]cm[/tex][tex]10^{-6}[/tex] for [tex]\mu g[/tex] to [tex]g[/tex] [tex]10^{6}[/tex] for [tex]Mm[/tex] to [tex]m[/tex]Let:
[tex]k \to[/tex] conversion factor
[tex](a)\ 1\ m^3 = 1000000\ cm^3[/tex]
Cancel out both units.
[tex]k = 1000000[/tex]
Express [tex]1000000[/tex] as exponent
[tex]k = 10^6[/tex]
Hence, the conversion factor from [tex]m^3[/tex] to [tex]cm^3[/tex] is: [tex]10^6[/tex]
[tex](b)\ 1\ in = 2.54\ cm[/tex]
Cancel out both units
[tex]k = 2.54[/tex]
Hence, the conversion factor from [tex]in[/tex] to [tex]cm[/tex] is: [tex]2.54[/tex]
[tex](c)\ 1\mu g = 0.000001g[/tex]
Cancel out both units
[tex]k = 0.000001[/tex]
Express as exponents
[tex]k = 10^{-6}[/tex]
Hence, the conversion factor from [tex]\mu g[/tex] to [tex]g[/tex] is: [tex]10^{-6}[/tex]
[tex](d)\ 1Mm = 1000000m[/tex]
Cancel out both units
[tex]k = 1000000[/tex]
Express as exponents
[tex]k = 10^6[/tex]
Hence, the conversion factor from [tex]Mm[/tex] to [tex]m[/tex] is: [tex]10^{6}[/tex]
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