Calculate the volume of this irregular solid to the nearest cubic centimeter.

What is the volume of the key?

Answers

Answer 1

Answer:

The answer is 8cm

Explanation:

:)

Answer 2

Answer:

8 cm

Explanation:


Related Questions

define atom and give an example

Answers

Answer:

Many atoms consist of a positively charged nucleus composed of protons and neutrons surrounded by a negatively charged cloud of electrons. At its most basic level, an atom is any particle of matter that contains at least one proton. ... Here are some examples of atoms: Neon (Ne) Hydrogen (H)

Explanation:

One of the uses of methanol (CH3OH) in dilute form is as a windshield washer antifreeze. In pure form, methanol has a molar concentration of 24.7M. How many moles are contained in 500 mL of solution?

Answers

Mol of methanol =12.35Further explanation

Mole itself is the number of particles contained in a substance

1 mole = 6.02.10²³ particles

Mole : the ratio of the amount of substance mass and its molar mass

[tex]\large{\boxed{\boxed{\bold{mole=\frac{mass}{molar\:mass}}}}[/tex]

Molarity is a way to express the concentration of the solution

Molarity shows the number of moles of solute in every 1 liter of solute or mmol in each ml of solution

[tex]\large{\boxed {\bold {M ~ = ~ \frac {n} {V}}}[/tex]

Molar concentration of methanol=24.7 M

Volume of solution = 500 ml = 0.5 L

[tex]\tt mol=M\times V\\\\mol=24.7\times 0.5\\\\mol=12.35[/tex]

3. describe how unequal heating causes weather

Answers

Answer:

The uneven heating causes temperature differences, which in turn cause air currents (wind) to develop, which then move heat from where there is more heat (higher temperatures) to where there is less heat (lower temperatures).

Explanation:

Matter is anything that takes up space and can be described by physical and chemical properties. Which statement
BEST differentiates chemical properties from physical properties?
A)
Physical properties are properties that can be physically seen or touched,
while chemical properties can only be found when matter is mixed with
specific chemicals.
B)
Physical properties are measured when matter changes its physical state,
while chemical properties can only be measured if matter remains in one
state for an extended time.
C)
Physical properties are difficult to measure because they require special
tools to detect, and chemical properties are easy to measure and require
not special tools to detect.
D)
Physical properties can be measured/observed without changing matter
into something else, while chemical properties describe matter's ability to
react/combine with other matter.

Answers

Answer:

D)

Physical properties can be measured/observed without changing matter

into something else, while chemical properties describe matter's ability to

react/combine with other matter.

Explanation:

Physical Change                                                                                              

The changes that occur only due to change in shape or physical properties but their chemical or internal composition remain unchanged.  

1 = These changes were reversible.

2= They have same chemical property.

3= These changes can be observed with naked eye.

Example :

Water converting to Ice

Water converting to gas

In this water molecule remain the same only they rearrange themselves that change its state of mater not composition

Chemical change:

The changes, that occur due to change in the composition of a substance and result in a different compound is known as chemical change.

1 = These changes are irreversible

2 = These changes occur due to chemical reactions

3 = These may not be observed with naked eye

Example:

Combustion of fuel or wood: that oil or wood convert into energy, CO₂ and ash in case of wood

Boiling of egg: that change the chemical composition of protein in the egg .

The reaction of Hydrogen and oxygen:

H₂ (g)  + O₂  (g)   →    2H₂O  (l)

1.why does gravity exist?

2.what does the strength of gravity on?

3.what will have stronger force of gravity, jupiter or earth ?

This class is science !!

Answers

Answer:

Gravity exists because elementary particles (electrons, quarks, and neutrinos), are NOT static with time and expansion. Matter is dynamic; elementary particles must continually accrete energy (the quanta of space) in order to conserve the continually increasing angular momentum of the expanding universe.

Strength of gravity

9.80665 m/s 2

Jupiter

How many molecules are there of the following compound?

5NaNO3

Answers

Answer:

84.99467

Explanation:

This should be the answer.

5 molecules Na is 1 N is 1 and O3 is 3 molecules so thats a sum of 5 molecules

Are hemoglobin formation and functioning brains and muscles benefits of Iron?

Answers

Whats a homogoblen? Not even sure what to say to this question

1. A teacher instructs her students to measure out 50.0 mL of hydrogen
peroxide for three trials of an experiment. A student measures out 37.2 mL,
38.7 mL, and 36.9 mL.
Use this information to answer the questions below (1a and 1b).
3 points
1a. Calculate the percent error for each measurement and include them
below. (For example: 1%, 2%, 3%) *

Answers

Answer:

by measuring the teacher gets to 1590

Explanation:

ndnmv drf

When copper is bombarded with high-energy electrons, X rays are emitted. Calculate the energy (in joules) associated with the photons if the wavelength of the X rays is 0.154 nm.

Answers

Answer:

E = 12.92 × 10^(-16) J

Explanation:

Formula for energy is;

E = hc/λ

Where;

h is Planck's constant = 6.63 x 10^(-34) J.s

c is speed of light = 3 × 10^(8) m/s

λ is wavelength = 0.154 nm = 0.154 × 10^(-9) m

E = (6.63 x 10^(-34) × 3 × 10^(8))/(0.154 × 10^(-9))

E = 12.92 × 10^(-16) J

The energy associated with the photons of X rays with a wavelength of 0.154 nm is 1.29 × 10⁻¹⁵ J.

When copper is bombarded with high-energy electrons, X rays, with a wavelength of 0.154 nm (λ) are emitted.

We can calculate the energy (E) associated with the photons of these X rays using the Planck-Einstein relation.

[tex]E = \frac{h \times c }{\lambda } = \frac{(6.63 \times 10^{-34}J.s ) \times (3.00 \times 10^{8}m/s ) }{0.154 \times 10^{-9} m } ]= 1.29 \times 10^{-15} J[/tex]

where,

h: Planck's constantc: speed of light

The energy associated with the photons of X rays with a wavelength of 0.154 nm is 1.29 × 10⁻¹⁵ J.

Learn more: https://brainly.com/question/2058557

How many atoms of aluminum are in a molecule of magnesium aluminum oxide (Al2MgO4)?

Answers

Answer:

12

Explanation:

Which of the following is the least likely to remain homogeneous?
. O A. All of these
O B. A supersaturated solution
O C. An unsaturated solution
O D. A saturated solution

Answers

Answer:

all

of them

Explanation:

A sample of gas has a volume of 10 ml at 2 atm. The pressure increases to 4 atm. What is the new volume?

Answers

Answer:

The answer is 5 mL

Explanation:

In order to find the new volume we use the formula for Boyle's law which is

[tex]P_1V_1 = P_2V_2[/tex]

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume

Since we are finding the new volume

[tex]V_2 = \frac{P_1V_1}{P_2} \\[/tex]

We have

[tex]V_2 = \frac{10 \times 2}{4} = \frac{20}{4} \\ [/tex]

We have the final answer as

5 mL

Hope this helps you

Which types of reactions would result in the production of gas?
PLEASE HELP NOW!! worth lots of points

Answers

Answer:

farts

Explanation:

How many cesium atoms are in 21.9 grams?

Answers

The answer to the problem is 0.16477879575292056

As part of a chemistry experiment, Sam notes that the temperature at which liquid mercury
freezes into a solid is -102 Fahrenheit (F). The beaker of liquid mercury provided to him Is
at a room temperature of 68". By how many degrees will Sam have to cool the liquid
mercury for it to freeze into a solid?
-102"F
-34°F
102°F
170°F
o

Answers

Answer:

-34¨F

Explanation:

How many atoms are in a sample of 2.89 moles of potassium (K)?

Answers

Answer:

The answer is

1.74 × 10²⁴ potassium atoms

Explanation:

To find the number of atoms given the number of moles we use the formula

N = n × L

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question

n = 2.89 moles

We have

N = 6.02 × 10²³ × 2.89

We have the final answer as

1.74 × 10²⁴ potassium atoms

Hope this helps you

1Which statement about plant cells is true? A A plant cell cannot contain both a nucleus and chlorophyll. Incorrect answer B A plant cell can contain both chlorophyll and a nucleus. Incorrect answer C A plant cell must contain chlorophyll, but can have no nucleus. Incorrect answer D A plant cell has neither a nucleus nor chlorophyll.

Answers

Answer:

B A plant cell can contain both chlorophyll and a nucleus.

Explanation:

All plants are eukaryotic organisms i.e the cells of all plants possess a membrane-bound nucleus that houses their genetic material (DNA). In addition to this, most plant cells also contain a unique organelle called CHLOROPLAST, which they use to capture the energy from sunlight in order to perform a process called PHOTOSYNTHESIS.

According to this question, plant cells can contain both chlorophyll and a nucleus. They can possess chlorophyll because chlorophyll is a pigment in their chloroplast that captures the light energy.

A + ion (positive ion, one with extra positive charge)?

Answers

Answer:

If an ion has a positive charge then it has lost an electrons.

Explanation:

So you don't "gain" anything when the ion has a positive charge. It loses an electron which means it has more protons than electrons. Thus, the ion has a positive charge. If it "gained" an electron then it would have a negative charge.

What is the main difference between gases and liquids

Answers

Answer:

1.Liquids have less force of attraction between molecules than solids and more than gases; gases have a very weak force of attraction between the molecules which is the least amongst the three states of matter. 2.Liquids have definite volume; gases do not have definite volume.

Explanation:

:) HOPE THIS HELPS

Answer:

particles

Explanation:

particles are buzzing around very quickly when in a gas, but when in a liquid they vibrate.

Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground. What is the independent variable?

Answers

Answer:

Wing length

Explanation:

According to the given excerpt, independent variable is 'wing length' and dependent variable is 'amount of time it takes for helicopter to hit the floor'.

Independent variable refers to the variable that do not undergo any change or shift in the course of the experiment of research. The other variables are measured using the constant independent variable. The value obtained from the independent variable is independent. On the other and, the dependent variable witnesses change with respect to the independent variable.

In an ionic bond
a. electrons are shared equally
b. protons are transferred
c. electrons are shared unequally
d. electrons are transferred

Answers

Answer: a chemical bond; in which one atom donates an electron to another atom

Explanation:

Burning 1 kg of coal releases about 3 million joules of energy. If you could use all of the chemical energy to lift another kilogram of coal, how high could you lift it?

Answers

I could lift 3.06 x 10⁵ m high

Further explanation

Energy is the ability to do work. Energy can change from one energy to another

Potential energy is the energy that an object has because of its position

The potential energy can be formulated:

Ep = m. g. h

E = potential energy of an object, joule

m = object mass, kg

g = gravity acceleration, m / s²

h = height of an object, m

energy of coal = 3.10⁶ J

mass = 1 kg

g = 9.8 m/s²

[tex]\tt h=\dfrac{E}{m.g}\\\\h=\dfrac{3.10^6}{1\times 9.8}=3.06\times 10^5`m[/tex]

HELP QUICK What is the mass of an object that has a volume of 2 ml and a density of 10g/ml?

Answers

Answer:

The answer is 20 g

Explanation:

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

mass = Density × volume

From the question we have

mass = 10 × 2

We have the final answer as

20 g

Hope this helps you

In Bohr’s model of the atom, where are the electrons and protons located?

Answers

The electrons move around the protons, which are in the center of the atom.

Please help me with this I’ve been on this question for 10 minutes now...

Answers

Answer:

A

Explanation:

we know that pangea was when all the continents were connected and the tectonic plates moved, causing pangea to split into multiple pieces. so north america was formed by moving tectonic plates.

i hope this helps :))

What is a stable electron configuration?

Answers

They have two or eight electrons in their valence shell. They do not gain, lose or share electrons.

What is a graph?


A graph is a _______________________ representation of the relationship between two quantities.
_______________________ variable (manipulated)
Controlled by experimenter
_______________________________ variable (responding)
Something we observe as the result of the experiment

Answers

*Visual

*Independent

*Dependent

Line M passes through the points (-5, 9) and (-1,9).
12
10-
8
6
2
-12-10-8-6-4-22
2
6 8 10 12 X
6
-10
-12-
Which is true of line M?

Answers

Answer:

line m is vertical line with an undefined slopel line correct answer is 6 8 10 12 x

What is the oxidation number of Gallium?

Answers

Answer: +3

Explanation: Gallium liquefies just above room temperature. Gallium is a soft solid, however it quickly becomes liquid when heated.

For lunch you have a glass of sweetened ice tea. The glass contains crushed tea leaves, sugar, a slice of lemon, and both liquid and frozen water (ice cubes). Which of the following categories of matter best describes the contents of the glass? *

Answers

Answer:

I think solids

Explanation:

sorry if its not right

Other Questions
A package of 5 pairs of insulated gloves costs $33.95. What is the unit price of the pairs of gloves? The difference between total factory overhead cost incurred during a period and the total standard factory overhead cost assigned to production of the period is the:______________.A) Flexible-budget variance.B) Production-volume variance.C) Total factory overhead variance.D) Overhead efficiency variance.E) Total overhead spending variance. any luck of help? I'll brainlist uu promise . I really need it for correction :) Which of the following is NOT true about matter in the biosphere?a) Matter is transferred in one direction through the biosphere. b) Biogeochemical cycles transform and reuse molecules. c) The total amount of matter decreases over time. d) Human activity does not affect the movement of matter Who was the first filibuster? Human hair is composed of three layers. Name these three layers from the inside out...Innermost layer Who is most Affected by cost living increases produces by the US creating money to pay for it dept?A. wealthyB. banksC. foreign governmentsD. Middle class and poor Which of the following best describes the Articles of Confederation?AA document outlining how the British government ignored the colonies' rightsBThe first plan for the government of the original thirteen statesCJohn Locke's writings on the separation of government powerDJames Madison's document outlining the principles of the US government What can cause an infectious disease when they enter your body and multiply?A.) phagocytes B.) antibodies C.) pathogens D.) T cellsPlease explain why. How does a calorie on a food label relate to a calorie that is produced in cellular respiration?? Please help How many 2/3 cup servings are in 28/3 cups of yogurt The Pompeii worm was discovered near _______. a. a hydrothermal vent b. a sea mount c. Hawaii d. the great barrier reef Please select the best answer from the choices provided A B C D what percentage is equal to 32/100 M= 1/2 M= 2M= -1/2M=-2 A quarterback dropped back 5 yards behind the lone of scrimmage. Then, he passed the ball 14 yards. How far past the line of scrimmage did the ball travel? (Write an equation to represent this problem) Which of the following statements about Latin American governments is false?A.Most countries have written constitutions.B.Most countries have strong executive branches and weaker legislatures.C.Most countries are military dictatorships.D.At least one country has an authoritarian dictatorship. Forrester Company is considering buying new equipment that would increase monthly fixed costs from $425,000 to $445,500 and would decrease the current variable costs of $60 by $15 per unit. The selling price of $100 is not expected to change. Forrester's current break-even sales are $1,140,000 and current break-even units are 11,400. If Forrester purchases this new equipment, the revised break-even point in dollars would be: I WILL GIVE HEART AND 5 STARS IF ANSWERED CORRECTLY: What criteria must be met for a state to claim status as a persistent objector?Select one:a. Its objections must be consistent, persistent, and timelyb. Its objections must be repeated over a long duration of time and internally consistentc. Its objections must be based on principles of its domestic legal systemd. Its objections must be public and specific Annotate: In paragraph 2, highlight how the authorindicates what Keffer remembers seeing.Analyze: How does including Keffer's memory helpachieve the author's purpose? Why is it important to knowwhat Keffer remembered? PLEASE HELP (TIMED TEST) Alex pondered the situation. His neighbor's new kitten, Madge, had managed to climb onto the garage roof, but she now seemed to beutterly panicked and completely at a loss as to how to get back to solid ground. Alex considered climbing a nearby tree and jumping the shortdistance onto the roof to rescue Madge. But he rejected that thought. Instead, he got a ladder, propped it against the garage, and cautiouslyclimbed toward the frightened kitten. He gently scooped up Madge, descended the ladder, and placed her in his neighbor's arms. The neighborsmiled and thanked Alex for his heroic gesture.Which word is closest in meaning to "heroic"?01. gallant2. grandO 3. reckless4. risky