If an object has a mass of 45g and a volume of 9 cubic centimeters, what is its density? been wroking forever
A.405g/cubic centimeters
B . 5g/ cubic centimeters
C > 4g/ cubic centimeters
0.2g/ cubic centtimeters

Answers

Answer 1

Answer:

The answer is option B

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\ [/tex]

From the question

mass of object = 45 g

volume = 9 cm³

Substitute the values into the above formula and solve

We have

[tex]density = \frac{45}{9} \\ [/tex]

We have the final answer as

5.0 g/cm³

Hope this helps you

Answer 2

Answer:

the answer is B 5g/ cubic centimeters

Explanation:

to find the density you divide the mass by the volume


Related Questions

What is the difference between the dependent variable and the independent variable in an experiment?

Answers

Answer:

An independent variable is the cause. Its value is independent of other variables in your study. A dependent variable is the effect. Its value depends on changes in the independent variable

Explanation:

Variables are the factors or the numbers used as a quantity. The dependent variables are conditional, and the independent variable is the cause that affects the result.

What are dependent variables and independent variables?

The independent variable of an experiment is the data that is the cause of the experimental design. Its value and result do not depend on other factors and conditions. These values are manipulative and are set by the researcher.

The dependent variables, on the other hand, vary based on the other factors and variables and are the effect that is based on the response and the outcome of the other variables. It is the tested or the measured value.

Therefore, the independent and dependent variables differ based on cause and effect.

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What is the correct measurement for solubility?

Answers

Other commonly used units include g/L (grams of solute per liter of solution) and m/L (moles of solute per liter of solution). Solubility units always express the maximum amount of solute that will dissolve in either a given amount of solvent, or a given amount of solution, at a specific temperature.

Need help with this

Answers

Answer:

Its enviormental science because enviormental science  is an interdisciplinary academic field that integrates physical.

If not for human activity how long would carbon stay as fossil fuel

Answers

Answer:

1,000 years

Explanation:

1,000 years

According to the U.N. Intergovernmental Panel on Climate Change (IPCC), which issued a special report on CCS in 2005, a properly selected site should securely store at least 99 percent of the sequestered CO2 for more than 1,000 years.

brownie mix a homogeneous or a heterogeneous mixture

pls helpppp​

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Brownie mix is a heterogeneous mixture:)

Testing a hypothesis is

Answers

Answer:

State the hypotheses. Every hypothesis test requires the analyst to state a null hypothesis and an alternative hypothesis. Formulate an analysis plan. The analysis plan describes how to use sample data to accept or reject the null hypothesis. Analyze sample data. Interpret the results.

Explanation:

Answer:

Your hypothesis is what your guess is for an answer and testing would be to test your hypothesis to see if its right

Explanation:

Determine the correct number of sig figs in: 1650

Answers

Answer:

3 sig figs

Explanation:

Why are scientific models important in the study of science?

Answers

Answer:

In science, amodel is a representation of an idea, an object or even a process or a system that is used to describe and explain phenomena that cannot be experienced directly. Models are central to what scientists do, both in their research as well as when communicating their explanations.

Explanation:

Answer:

They always involve critical mathematical calculations.

Explanation:

tell me if im wrong but this one makes the most since to me

Stars form inside giant clouds of gas and dust. What are these giant clouds of gas and dust called?
A.) Supernova
B.) Quasar
C.) nebula
D.) Black hole

Answers

They are called nebulas

How do the number of protons in an atom affect the atom's
identity?

Answers

Answer:

The number of protons in an atom define each individual element because the number of protons is the atomic number which is the defining property of an atom and never changes. The number of protons determines an atom's identity. For example, Oxygen has an atomic number of 8, so it has 8 protons, so no matter what ionic compound or molecule it's part of, every single Oxygen atom will always have 8 protons each.

If the density of water is 1.0 g/mL, what is the mass of 2.0 L of water?

Answers

Answer:

Density=1.0 g/mL

Volume=2.0 L

Mass=?

Density=mass/volume

Mass=density*volume

Mass=1.0*2.0

Mass=2g

Which of the examples represent potential energy A candy bar Wind A stretched rubber band Rowing a boat A ball rollinv down a hill A roller coaster at the top of a hill

Answers

Answer:

A candy bar

A stretched rubber band

A roller coaster at the top of a hill

Explanation:

Potential energy is the energy present as a result of the position of an object. This energy depicts zero motion or movement unlike kinetic energy.

A candy bar, stretched rubber band and roller coaster at the top of a hill all indicate positions without any said explanation of movement.

The other option choices depicts a type of movement .This is why the three option choices are correct in this scenario.

The examples that represent potential energy are:

A. A candy bar

B. A stretched rubber band

D. A roller coaster at the top of a hill

What is Potential energy?

It is the stored energy in any object or system by virtue of its position or arrangement of parts. This energy depicts zero motion or movement unlike kinetic energy. For example : A candy bar, stretched rubber band and roller coaster at the top of a hill all indicate positions without any said explanation of movement.

Thus, correct options are A, B and D.

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Is this atom Reactive (unstable) or Unreactive (stable) ?

Answers

Answer:

The answer is Unreactive.

Explanation:

This is an unreactive atom because it has completely filled out stable electrons in the outer shell.

8 electrons in the outer shell means stable.

What does the atomic mass come from on the periodic table?

Answers

The atomic mass comes from isotopes on the periodic table.

Describe how you would measure the density of a boat (how would you predict if it would float )

Answers

Answer:

Please find the description below

Explanation:

The density of a substance refers to its mass per unit of its volume i.e the amount of a substance contained in a given volume. The density is calculated using the formula:

Density = mass/volume

Using this formula, with the known value for mass and volume of the boat, the density of the boat can be calculated.

An object will FLOAT on a liquid substance if its density is lower than that of the liquid while it will SINK if it has a higher density than that of the liquid.

In this case, with a known density of water, which is 1g/cm^3 or 1000kg/m^3,

a boat placed on water will FLOAT if its density is <1g/cm^3 (less than) while it will SINK if its density is >1g/cm^3 (greater than).

who can answer questions 5 and 6​

Answers

1. C - fluorine
2. A - Potassium

You are stranded on survivor island in which there are already 375 other survivors. For every survivor there are two hands, for every hand there is an eye; for every eye, there is a footprint; and for every 4 footprints, there is a dinosaur; for every half dinosaur, there are40 ducks; for every 20 ducks, there are 32 pineapples; for every 12 pineapples, there is 1 palm tree; for every 30 palm trees, there is 1 wave; for every wave, there are 100 anchors; and for every anchor, there are 30 turtles. How many turtles are on the island? Use dimensional analysis to solve this calculation.

Answers

Answer:

its in the answer

Explanation:

What do you think it means to use science to answer a question?

*ANSWER AND ILL GIVE YOU BRAINLIEST ANSWER*

Answers

Answer: Science is an accurate measure of whats true, there are laws of science like physic, and mathematics and you can prove your answer by using science

Explanation:

describe the motion of objects that are viewed from your reference frame from both inside and while you travel inside a moving vehicle

Answers

Answer:

They don't move

Explanation:

it may look like they move but you are moving and you are passing the objects so they are not moving other wise things like some trains or animals they move with you. I hope this helps! :D

The motion of objects that are viewed from your reference frame from both inside and while you travel inside a moving vehicle are not moving. It seems that way because the car you are in is moving, but the surrounding things aren't moving unless they are people, animals, or other cars.

What is motion ?

An object changing its position with regard to time is referred to as motion. In mathematics, displacement, distance, velocity, acceleration, and speed are used to explain motion.

Motion is the shift in an object's location with regard to time. Motion includes things like a book tumbling off a table, water running from the faucet, rattling windows, etc. Even the air we breathe has motion to it! The entire universe is in motion.

Because the two observers are using distinct frames of reference, the observations differ. Different frames of reference move in relation to one another. A frame of reference is a collection of coordinates that may be used to calculate the locations and velocities of objects within it.

Thus, The motion of objects that are viewed from your reference frame from both inside and while you travel inside a moving vehicle are not moving.

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1. Which statement best describes why a gas is
easily compressible while most solids
are incompressible?
A. The molecules of a gas are much smaller
than those of a solid.
B. The molecules of a solid are not attracted to
one another.
C. The molecules of a gas are much further
apart than those of a solid.
D. The molecules of a solid are much larger
than those of a gas.

Answers

C) The molecules of a gas are much further

apart than those of a solid.

A gas is easily compressible while most solids are incompressible because the molecules of gas are much further apart than those of a solid.

What are gases?

Gases is one of the four fundamental state of matter.

Gases can be defined as phase of matter that neither have fixed shape nor have fixed volume.

The molecules of gases are far apart from each other as compare to other phases of matter.

The change in properties of volume is known as compressibility and those fluid whose volume changes are known as compressible fluids or gases.

The fluids which does not compressed or expanded and its volume remain constant are known as incompressible fluids or gases.

Thus, gas is easily compressible while most solids are incompressible because the molecules of gas are much further apart than those of a solid.

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I was wondering if this is correct?

Answers

Answer:

I believe you are correct

thats because All of the 2nd choices seem to be larger

which of the following is the correct equation for photosynthesis​

Answers

Answer:

6CO2 + 6H20 + ENERGY = C6H12O6 + 6O2

Explanation:

Carbon dioxide + water + energy from light produces glucose and oxygen

Carbondioxide gas is't collectable in water. why​?

Answers

Answer:

carbon dioxide is a gas so it isn't collected over water.

Explanation:

it works for insoluble gases such as hydrogen,or gases that do not dissolve easily in water such as ammonia and chlorine are readily soluble in water and are not collected this way.

hope it is helpful for you.

12. Which of the following species has the
least mass?
A. Electron C. Hydrogen ion
B. Helium atom D. Neutron
13. The mass number of an element whose
atom contains 13 electrons, 13 protons and
14 neutrons is
A. 13 B. 26 C. 27 D. 40
14. Which of the following elements exhibits
variable oxidation states and forms​

Answers

12.electrons

13.13

14.aluminum has 14 neutron.

1. Which number is more accurate if the correct number is 3.5. Is it 3.1, 3.3, 3.6, or 4.0?

Answers

Seems to be 3.6 since it’s closer by 1, As for 4.0 it would be 5 more.

Answer:

3.6

Explanation:

3.6 is only 0.1 away from 3.5

I hope this helped and plz give brainliest!

Scientists use results from new experiments to
support their own personal political opinions.
increase precision of data that were collected previously.
modify existing explanations of how nature works.
aid in distinguishing science from pseudoscience.

Answers

Answer:

modify existing explanations of how nature works.

Explanation:

Scientists use new experiments to aid in distinguishing science from pseudoscience also to update the explanations of how nature works.

What is pseudoscience?

Pseudoscience is the falls assumptions and predictions by some thoughts and prejudice that arguing to be scientific. For example astrology, there is no scientific evidence for that,

Scientists update the phenomenon and concepts in nature through various research works which are planed in advanced level. These results are not for personal requirements not for political opinions.

Thus new experiments are conducting for arriving at new information that are valuable to everyone and thus distinguishing  science from pseudoscience.

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Which atom has a configuration that ends in 5s 2?

Answers

Answer:  Zirconium [Kr]4d :)

Explanation:

What is mass in grams of 300 ml of salt water with a density of 1.30 grams per centimeter cubed

Answers

Answer:

The answer is

390 g

Explanation:

The mass of a substance given the density and volume can be found by using the formula

mass = Density × volume

From the question

Density = 1.30 g/cm³

volume = 300 mL

Substitute the values into the above formula and solve

That's

mass = 1.3 × 300

We have the final answer as

390 g

Hope this helps you

which branch of science studies non-living things?

Answers

Answer: The branch of science you are referring to is Physical Science.

Answer:

physical science

Explanation:

Physical science is a branch of natural science that studies non-living systems, in contrast to life science.

What are the key differences between dependent and independent variables? *

Answers

Dependent variables are essentially what you are measuring and is kept the same, and the independent variable is what you change in the experiment
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