Answer:
doppler effect
Explanation:
''The Doppler effect occurs for light as well as sound. For instance, astronomers routinely determine how fast stars and galaxies are moving away from us by measuring the extent to which their light is “stretched” into the lower frequency, red part of the spectrum''
what type of compound is iron (3) oxide
Answer:
B Group Salt (Ionic Bond)
Explanation:
Iron (III) Oxide
Fe2O3
Answer:
Carbon Trioxide
Explanation:
How do you convert 34.6 kilograms to micrograms?
Also the Steps that got you that answer
first 30 elements with their atomic mass
A few important ones........
A certain atom has 20 electrons, 21 neutrons, and 20 protons. What is the atomic mass of the atom?
(earth science not chem!!) What branch of Earth Science deals with stars and galaxies beyond Earth?
Answer:
The answer is Astronomy.
Explanation: Astronomy is the study of objects beyond the Earth’s atmosphere
which character of Life distinguishes a fire and a flowering plant
Answer:
a flowering plant needs water while a fire doesn't.
That what I guessed???
A cubic object has a volume of 250 cm. What is its density if its mass is 5 points
257.3 g?
Answer:
The answer is 1.03 g/cm³Explanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\ [/tex]
From the question
mass = 257.3 g
volume = 250 cm³
We have
[tex]density = \frac{257.3}{250} \\ = 1.0292[/tex]
We have the final answer as
1.03 g/cm³Hope this helps you
what happens when you microwave a chip bag....
(asking for a friend)
Answer:
i have done this before
Explanation:
the bag just starts shrinking after sparkling a little bit
What is a watt, which is a unit of power,equal to?
A joule divided by a meter
A joule times a meter
A joule times a second
A joule divided by a second
Answer:
A joule divided a second
Explanation:
i took the test
plz give me brainlist :)
How many significant figure are in the number 0.000850320
Answer:
6
Explanation:
the sig figs are 850320
Write the electron configuration for element 53. Use the noble gas notation.
Answer:
2,8,8,8,8,8,8,3
Explanation:
Electron Configuration is the distribution of electrons of an atom or molecule in atomic or molecular orbitals.
Where are each part of the atoms located?
Answer: With the portion of hydrogen, all atoms have three parts. The parts of an atom are protons, electrons, and neutrons. A proton is accurately charged and is located in the center or nucleus of the atom. Electrons are negatively charged and are located in rings or orbits spinning around the nucleus.
Explanation: I hope this was helpful.
What part of the sun do we see from earth?
Answer:
photosphere
Explanation:
photosphere
There are 3 main layers of the Sun that we can see. They are the photosphere, the chromosphere and the corona. Together they make up the "atmosphere" of the Sun. The part of the Sun that glows (and that we see with the naked eye) is called the photosphere
Answer:
There are 3 main layers of the Sun that we can see. They are the photosphere, the chromosphere and the corona. Together they make up the "atmosphere" of the Sun. The part of the Sun that glows (and that we see with the naked eye) is called the photosphere.
Explanation:
Yes, that's right a layer of the sun is called Corona
Coincidence, I think not
1 point
QUESTION 5: What happens if you reset and place the refrigerator instead
of the wooden box with an applied force fo 200 Newtons for about 3
seconds? *
O The speed of the skateboard increases compared to the wooden box
O The speed of the skateboard decreases compared to the wooden box
Answer: The speed of the skateboard decreases compared to the wooden box
Explanation: well, umm... if you placed a refrigerator on a skateboard... that will be difficult to move, if anything it will brake the board!
A wooden box is much lighter than a refrigerator
When water changes states from a liquid to gas , the water molecules move far apart . True or false? (6th grade science)
Answer:true
Explanation:
Show all work: A metal bar has a length of 5.0 cm, a width of 3.0 cm, and a height of 1.0 cm. What volume of water, measured in deciliters, would this bar displace?
15 cm
and I have to explain but there's nothing to explain so yea
15. Which of the following is a correct statement?
O Nuclear power plants produce non-radioactive waste.
O Nuclear power plants utilize nuclear fusion.
O Fission utilizes the limited fuel source uranium.
O The waste products from a nuclear reactor are no longer radioactive.
Answer:
The answer is A
Explanation:
Nuclear power plants produce non-radioactive waste
Answer:
A
Explanation:
If you know the volume and the density of an iron rod, how would you calculate the mass of that iron rod? Show a formula.
Answer: for an example
volume can easily be calculated: pi*(d^2/4)*length -> pi*[(7x10^-2)/4]*70x10–2 = volume of iron rod {VOIR}
Density = mass / volume
Therefore
Mass = density x volume
However, weight is equals to ‘mass x g (free fall acceleration’
So mass is in kg but weight is a force so simple force equation to where ‘a (acceleration)’ in ‘F=ma’ is ‘g’.
Hence,
Weight = 9.81 ms^-2 (is ‘g’) x 7870 kgm^-3 x VOIR m^3 is *insert calculated answer* N.
Explanation:
A car traveling at a constant speed of 75 miles/hr for 7.5 hours will go how far?
a
10 miles
562.5 miles
b
O.c
Od
751.5 miles
199 miles
Answer:
The answer is 562.5 milesExplanation:
The distance covered by an object given it's velocity and time taken can be found by using the formula
distance = velocity × time
From the question we have
distance = 75 × 7.5
We have the final answer as
562.5 milesHope this helps you
which terms are used to identify pure substances
Answer:
Number 2:
Element and compound
What is the density of a 805 g sample of pure silicon with a volume of 2.3 cm3?
you find a 2cmsquared piece of pure gold with a mass of 38.6 g. what is it's density?
Answer:
First change cm in m and mass is 38.6g. Volume. =200m
Explanation:
Now,
Density =mass /volume
38.6/200
0.193 density
Cells with nuclei belong in the domain
Archaea
Bacteria
Eukarya
Protists
Answer:
Eukarya
Explanation:
if it has an nuclei its eukaryotic
Help Please : Will Mark Brainliest !!
Gold atoms can be identified based on the number of which subatomic particles?
A. Protons
B. nuclei
C. electrons
D. neutrons
Answer:B
Explanation:
I'm not sure which category this is. But please help me on this!!
Two piles of heavy boxes must be lifted onto a shelf. Each pile has 20 boxes and each box is the same size and weight. Tom and Claudia are each responsible for a pile. Tom lifts each box straight up from the pile to the shelf. Claudia places a long, gradual ramp that leads from the pile to the shelf. She pushes each box up the ramp until it rests on the shelf.
(Tom used more force.)
Compare the distance each person moved each box. Who moved the boxes a longer distance?
Answer:
Tom
Explanation:
Simply because we see Claudia used a shortcut. Tom uses more physical force than Claudia, since Claudia only had to push the boxes into there required shelves.
emelie is working on a science project. her task is to answer the question does rogooti a hair cream sold on tv affect the speed of hair growth in length her family is willing to volunteer for the experiment
Answer:
This question is incomplete and unclear; the complete question including the missing part is:
Emelie is working on a science project. Her task is to answer the question:
"Does Rogooti (a hair cream sold on TV) affect the speed of hair growth
(in length)". Her family is willing to volunteer for the experiment. Identify the control group (CG) and the independent and dependent variables.
ANSWER:
Independent variable: Rogooti hair cream
Dependent variable: Speed of hair growth/length
Control group: Family members that do not use the Rogooti hair cream
Explanation:
In an experiment, the independent variable is the variable that the experimenter changes or manipulates in order to bring about a measurable response. In this case, the ROGOOTI HAIR CREAM is the independent variable.
Dependent variable refers to the variable that is measured or the variable that responds to the change made to the independent variable. In this case, the dependent variable is SPEED AT WHICH HAIR GROWS (IN LENGTH).
Control group in an experiment is the group that does not receive the experimental treatment. In this case, the experimental treatment is the Rogooti hair cream, hence, the control group will be the VOLUNTEER FAMILY MEMBERS THAT DOES NOT RECEIVE THE ROGOOTI HAIR CREAM ON THEIR HAIR.
Nitrogen-7 configuration
Explanation:
Electronic configuration of Nitrogen -
₇N = 1s² 2s² 2p³
If the value of volume doubles but the mass stays
the same, the value for density will be
1.double
2.the same
3.halved
Answer:
halved
Explanation:
density decreases when volume increases if mass is kept constant density is defined as mass divided by volume.If the value of volume doubles, but the mass stays the same, the value for density will be halved. The correct option is 3.
What are volume, mass, and density?Density is the mass per unit volume. Density is a scalar quantity. It is denoted by d and the symbol for density is given as rho, a Greek symbol. Density is calculated as mass divided by volume.
Mass is the quantity of matter in a physical body. The product of the molar mass of the compound and the moles of the substance are defined as mass.
Volume is the space occupied by a three-dimensional object. Volume is calculated by dividing mass by density.
These three factors are related to each other. If two variables are given, the third can be calculated.
Thus, the correct option is 3. Halved.
To learn more about volume, mass, and density, refer to the link:
https://brainly.com/question/13799762
#SPJ2
Which statement describes potential energy?
A energy of motion
B.stored energy
C energy due to heat
D. used energy
Answer:
B. stored energy
hope this helps!!
