Which one is the correct equation for calculating density? *
Density - Mass / Volume
Density - Mass / Weight
Density - Volume / Mass
Density = Volume / Weight

Answers

Answer 1

Answer: Density=Mass/Volume

Explanation:

Answer 2

Answer:

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

explanation :

here some examples

the mass of 20 cm³ of mercury is 272g. calculate it density of mercury.

[tex]density \\ = \frac{mass}{volume} = \frac{272g}{ {20cm}^{3} } [/tex]

answer :-

[tex] = 13.6g \: {cm}^{ - 3} [/tex]


Related Questions

2 Co + 3 H2O → Co2O3 + 3 H2
List all of the elements in this equation

Answers

Cobalt- Co
Water- H2O
Cobalt(III) Oxide- Co2O3
Dihydrogen- H2

Which factors best determine the variety of climate zones on earth?

Answers

I’m pretty sure the answer is B

When do enzymes stop reacting to the substrates?

Answers

This structure is held together by weak forces between the amino acid molecules in the chain. High temperatures will break these forces. The enzyme, including its active site, will change shape and the substrate no longer fit. The rate of reaction will be affected, or the reaction will stop.

Answer:

If the reaction is divalent metal ion-dependent, you can stop the reaction by adding an excess of EDTA to bind the metal.

You can kill the protein by adding perchloric acid, then precipitate the perchlorate with an equivalent amount of potassium carbonate, leaving nothing but carbonic acid in the supernatant, which bubbles off as carbon dioxide. Centrifuge the sample and take the supernatant to analyze for the product.

A rather slow method is ultrafiltration, using a micro-centrifugal ultrafilter (e.g. Microcon) with a molecular weigh cutoff smaller than the molecular weight of the enzyme. This can be done at 4oC to slow down the reaction during the separation.

Explanation:

which will most likely result in a negative growth rate in the human population of a country

Answers

Answer:

The death rate is higher than the birth rate. The birth rate is higher than the death rate.

Explanation:

please help (5 stars nocap)3

Answers

Answer:

C) Chloroplasts

Explanation:

Chloroplasts are the organelle of photosynthesis. They capture light energy from the sun and use it with water and carbon dioxide to make food (sugar) for the plant.

Hope this helps :)

Answer:

c

Explanation:

There are various types of plant cells which include: parenchyma cells, sclerenchyma cells, collenchyma cells, xylem cells, and phloem cells. Parenchyma cells are the major cells of plants.

hope it helps

Besides poaching, what other major factor is causing a decline in elephant populations?

Answers

Answer:Habitat Loss and conflict with communities

Explanation: Habitat loss and conflict with communities

Most elephant habitat still extends outside protected areas, and the rapid growth of human populations and the extension of agriculture into rangelands and forests formerly considered unsuitable for farming mean that elephant habitat is continuing to be lost.

Increasing conflict with people

As human populations expand, more land is being converted to agriculture. So elephant habitat is shrinking and becoming more fragmented, and people and elephants are increasingly coming into contact - and conflict - with each other.

Elephants sometimes raid farmers’ fields and damage their crops – affecting the farmers’ livelihoods – and may even kill people. Elephants are sometimes killed in retaliation.

With human populations continuing to grow across their range, habitat loss and degradation - and conflict with communities - will remain major threats to elephants' survival.

Besides poaching other major factor is causing a decline in elephant populations is habitat Loss and conflict with communities.

What are the reason behind the decline of the population of elephants?

The reason behind the decline of the population of elephants are poaching, besides poaching other major factor is causing a decline in elephant populations is habitat Loss and conflict with communities.The logistics growth curve has been defined as the population per capita growth rate is decreases and get smaller and the size of population increases maximum applied by resources which are limited  in the environment which is known as the K that has been carrying capacity.

The logistics population growth has been  represented by the logistic growth curve on a line graph and the shape of the curve has S - shaped that represents the slow increase, and rapid growth in the population and after that there has been reduction in the growth.

The best example of the logistics growth has observed in the wild population that includes the sheep as well as harbor seals. In both of the cases the number of the population has been increases and carrying capacity for small period of time.

Therefore, Besides poaching other major factor is causing a decline in elephant populations is habitat Loss and conflict with communities.

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How are plant and animal cells different in size and shape

Answers

Answer:

plant cells are rectangular while animal cells are spherical

Explanation:

plant cells are mostly rectangular due to the cell walls morphing them into that shape while animal cells are more sphere like in order to save space

An animal Cell doesn't have a cell wallPlant cells has chloroplast, animal doesntAnimal cells have small vacuoles, plants have bigPlant cells are often rectangular, and animals cells are round

Hope this helped

Fun facts about the endocrine system? Any ideas

Answers

Answer:

... does this help ?....

Explanation:

The body's hormones, and the glands that produce them, make up the endocrine system. There are eight major glands, and their job is to regulate the body's metabolism, reproduction, growth and sleep. Like the nervous system, the endocrine system is an information signal system.

Answer:

The endocrine system. ... Traditional Chinese healers practiced endocrinology more than 2,000 years ago. ... The endocrine system is sometimes at fault for osteoporosis. ... The term "hormone" is only about a century old. ... Not all hormones come from the endocrine system. ... Diabetes was once diagnosed by tasting urine.

PLEASE HELP !!!!!! What will happen if the Soufriere Hills volcano became clogged with hardened lava ???

Answers

Answer:

it would be inactive

Explanation:

I think that's the answer

Answer:

it will explode

Explanation:

the built up pressure will cause it to explode

How many types of bones are there?
1.) 1
2.) 2
3.) 3
4.) 4
5.) 5

Answers

There are 5 types of bones

Answer:

Hello!!! Princess Sakura here ^^

Explanation:

There are 5 types of bones and they would be flat, long, short, irregular, and sesamoid.

Which of the following are supported by many
observations?

hypotheses
laws
theories

Answers

Answer:

laws.

Explanation:

hypothesis is an educated guess

therous are ideas

and laws are supported by observations. like newton's law.

Answer:

laws and theories

Explanation:

bc i just answered it

Which of the following organisms contributes to the production of soil on a newly formed area of land during primary succession?

Answers

Answer:

The settling of a pioneer community marks the start of the colonizing phase of primary succession. Examples of pioneer species are lichens, algae, and fungi. These species are more tolerant and eventually contribute to the formation of the soil by breaking down rocks into smaller particles.

Explanation:

PLEASE HELP WILL MARK THE FIRST PERSON TO RESPOND BRAINIEST.
Sir Nurse compares the biological cell to the physical atom. Do you think this is a good comparison? What strengths does this comparison have? What weaknesses does it have?

Answers

Answer:

No

Explanation:

Cells and Atoms both have a nucleus, even though they are made of different things. They make up the main structure of the cell or atom. The weakness is that is all they have in common

1. What is a predator and what is a prey? 2. How do they impact each other both positively and negatively, use clear details/examples to explain

Answers

Answer:

A predator is usually an animal who mostly eats and it's not eaten by other organisms. A prey is are organisms who are eaten by other animals.

Explanation:

Thoughts on Pokémon?

Answers

Answer: i like pokemon ;)

Explanation:

Answer:

Pokémon is a thing that you enjoy more if you grow up with it

Explanation:

the half life of carbon-14 is 5730 years. a corpse is pulled from a bog and tested for C-14 beta radiation. the amount of radiation is 75% of the normal amount coming from living things. how long has the corpse been in the bog?

Answers

Answer:

%67

Explanation:

A _____ is a substance that speeds up a chemical reaction without being used up in the reaction

Answers

Answer:

An enzyme is a substance that speeds up a chemical reaction without being used up in the reaction.

Answer:

Catalyst

Explanation:

One example of a catalyst is yeast, it helps speed up the process of bread becoming fluffy, for example

what happens to energy during cellular respiration ​

Answers

Answer:

During cellular respiration glucose and oxygen are converted into carbon dioxide and water and the energy is transferred to ATP.

Explanation:

As the human population grows, what happens to our natural-resource requirements?
They increase.
They decrease.
They do not change.
They go in cycles.

Answers

Answer:

A: They increase

Explanation:

Edge2021

As the human population grows, our natural-resource also increases which is denoted as option A.

What are Resources?

This is referred to as a substance which enables an individual make profits or benefits.

When human population grows, wants also increases which will lead to an increase in the natural-resource requirements.

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During which stage of the life cycle is a star a ball of gas and dust?

Answers

Answer:

The sixth stage in a low mass stars life, the remains of the red giant is a glowing ball of gas about the size of earth. Nuclear fusion has stopped and the gas begins to cool.

Carbon is unique due to the carbon atom’s

Answers

Answer:

Carbon is the only element that can form so many different compounds because each carbon atom can form four chemical bonds to other atoms, and because the carbon atom is just the right, small size to fit in comfortably as parts of very large molecules.

Explanation:

In a certain plant, yellow leaves are dominant (Y) and red leaves are recessive yA plant with genotype Yy and a plant with YY are crossed. If they have four offspring, how many would you predict would have red leaves? (Hint. Draw a Punnett square to help you determine the answer) OA. 0 OB. 3 Oc. 1 OD. 2​

Answers

Answer:

Its 1 I just took the test and answered 0 and got it wrong

Explanation:

If two plants with yellow leaves with YY and Yy genotypes are crossed then all the offspring will have yellow leaves. Thus, the correct option is A.

What is a Monohybrid cross?

A monohybrid cross is the hybrid of the two individuals with homozygous genotypes or heterozygous genotypes which result in the formation of opposite phenotype for a certain genetic trait. The cross between the two monohybrid traits such as flower color or plant height is called a Monohybrid Cross.

When two plants, one with homozygous yellow leaves (YY) and one with heterozygous yellow leaves (Yy) are crossed, then the offspring will have yellow leaves and none of the offspring will have red colored leaves as this is a recessive trait and it requires to be present in homozygous condition to show its effect.

Therefore, the correct option is A.

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if a star is moving towards earth it is​

Answers

Answer:

a shooting star even thou its just a burning rock with a flame tail shooting across the sky XD

Explanation:

Answer:

A shooting star

Explanation:

What is the reason of dividing Endoplasmic Reticulum Into two types.
Explain in detail.
Please answer

Answers

Answer:

We divide ER into two types because Smooth ER(SER) do not have ribosomes and Rough ER(RER) have ribosome thus former is also called Agranulated ER and Latter is called Granulated ER. SER is not involved in protein synthesis its main function is synthesis of lipids carbs steroid thus it is found in Adipose cells, interstitial cells, liver cells. RER have ribosomes so they are involved in protein synthesis so they are present in protein synthesising cells such as salivary glands and pancreas.

Which of the following is an example of a non contact force

Answers

Answer:

Gravity, Electrostatic force, Magnetic force

Explanation:

A non-contact force is a force that is applied to an object by another object without contact. Gravity, electrostatic force, and magnetic force all don't need two objects to be touching in order for them to work.

On the other hand, an example of a contact force is friction, because it can only occur if two objects are touching. If you want to tell the difference between a contact and non-contact force, just ask yourself if it can occur if the two objects are not touching. If it can occur while two objects aren't touching, it is non-contact, and if it can't, it is contact.

All the options given describe a force that involves contact except for the force exerted by magnets. Thus, the correct option is C.

Magnetic force is the force exerted by magnets. It can be described as the effect exerted on a charged particle due to the magnetic field of the other particle.

It is a consequence of the electromagnetic force, which is caused due to the movement of electrically charged particles.

Two objects that are oppositely charged will have a magnetic force of attraction, whereas two objects that have the same charge will have a magnetic force of repulsion.

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Your question is incomplete. The full question probably might be:

Which of the following is an example of a non-contact force?

(a) The force exerted by us to lift a bucket

(b) push a stationary car

(c) The force exerted by magnets

(d) Force due to friction​

Which of the following statements is true for a molecule that is phosphorylated?
A) It has been reduced as a result of a redox reaction involving the loss of an inorganic phosphate.
B) It has a decreased chemical energy and is less likely to provide energy for cellular work.
C) It has been oxidized as a result of a redox reaction involving the gain of an inorganic phosphate .
D) It has increased chemical potential energy that may be used to do cellular work.

Answers

Answer:

The correct appropriate is Option D.

Explanation:

The phosphorylation mechanism of both a chemical compound, either through inorganic phosphate conversion other than by phosphate conversion from yet another biological phosphate.  Those have improved chemical energy capacity which could be used to do cellular function.  

Some other possible alternatives are not connected to the situation described. So, the solution above is the right one.

The statement 'it has increased chemical potential energy that may be used to do cellular work.' is TRUE about a molecule that is phosphorylated (Option D).

Phosphorylation is a posttranslational protein modification that plays a fundamental role in many cellular processes.

Phosphorylation increases the potential energy of a molecule by adding a phosphate group that contains a high-energy phosphate bond.

The energy released by this phosphate bond can be used to drive many cellular processes.

In conclusion, the statement 'it has increased chemical potential energy that may be used to do cellular work.' is TRUE about a molecule that is phosphorylated (Option D).

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Are ecosystems at the edge of forests more likely to stay healthy, or ecosystems in the interior of forests? Explain your choice. ​

Answers

Answer:

Interior because it is harder for humans to get machinery inside to chop down trees or harvest natural resources. They must start destroying from the edge inwards.

Explanation:

Answer:

The ecosystem in the interior of forests stay healthy.

Explanation:

Ecosystem at the edge of the forests are exposed to many things that can affect it and ecosystem in the forests are untouchable and are exposed to things that naturally occurring.

Which two of the three elements have SIMILAR CHEMICAL PROPERTIES (valence electrons)?
1. Li - Na - Mg
2. F - Br - O
3. P - As - Se
4. Ra - Ba - Cs

Answers

Answer:

1. Li - Na

2. F - Br

3. P - As

4. Ra - Ba

Cells use ATP to…

A) move molecules, ions and other substances across membranes

B) make new cells

C) decompose old cells

D) make cell membranes stronger so molecules can not pass through

Answers

The answer is A because atp is used to move the cell thingys
The answer is A.
ATP is the cells source of energy, required for the function of cellular tasks such as movement of molecules across membranes and protein synthesis

9. List the steps of cellular respiration in order

Answers

Answer:

glycoliysis, citric acid cycle, electron transfer chain

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