how much is a promethean board
Types and Cost of Promethean Boards Error message | View complete answer on https://study.com
Category: Q&A
elements that are liquids at room temperature
The only liquid elements at standard temperature and pressure are Bromine (Br) and Mercury (Hg). Although, elements Caesium (Cs), Rubidium(Rb), Francium (Fr) and Gallium (Ga) become liquid at or …
what’s the thickest layer of the earth
Mantle is the thickest layer of earth at ~2900km. What is the thickest interior layer of Earth? The thinnest? https://homework.study.com › what-is-t… https://homework.study.com › what-is-t… Dịch trang này 1 …
can an object have zero velocity and nonzero acceleration
It is possible that the acceleration of a particle is non-zero and velocity is zero at the same instant. For example, if a ball is thrown up then at …
what does the court do with john proctor
He was hanged because he was accused of doing the devil’s work. He was given the chance to save his life if he admitted on a piece of paper …
another year around the sun meaning birthday
The word trip means journey, which creates the idea that each of us makes a journey around the sun, each year. Therefore, the phrase is often used on a …
which atmospheric conditions are necessary for condensation
Two things must be present for condensation to occur: warm moist air, and cool surface temperatures below the dew point. Error message | View complete answer on https://www.mbma.com
what is the most complex level of body organization
The most complex level of organization is the organismal level, where all eleven organ systems function in the human organism, the whole living person. There are numerous levels of …
how does the biosphere interact with the hydrosphere
The interaction between biosphere and hydrosphere is that hydrosphere provides water for the biosphere to function, grow, and live. Animals (biosphere) drinks water (hydrosphere), Fish (biosphere) need water (hydrosphere) …
how is the earth’s groundwater and surface water replenished
Answer and Explanation: Both groundwater and surface water are largely replenished by rainwater. Error message | View complete answer on https://homework.study.com
how to find equation of secant line
Answer: The equation of a secant line given two points (a, b) and (c, d) is y – b = (x – a) Secant Line Formula & Equation – …
what does the wolf mean in manifest
There’s a reason the wolf keeps showing up, and Manifest creator Jeff Rake explains why to Bustle. “I think of the wolf symbolically as the idea of a predator …
what is the molar heat capacity of liquid water
75.3 J mol-1 K-1 The molar heat capacity of liquid water is 75.3 J mol-1 K-1. (a) What is the molar heat capacity of liquid water? J/mol C (b …
can you survive 110 degree fever
Outlook for hyperpyrexia? Hyperpyrexia, or fever of 106°F or higher, is a medical emergency. If the fever is not lowered, organ damage and death can result. In fact, if …
how many neutrons does al have
14 Error message | View complete answer on http://hobart.k12.in.us
who discovered the first living cell
Initially discovered by Robert Hooke in 1665, the cell has a rich and interesting history that has ultimately given way to many of today’s scientific advancements. Who discovered the …
where do ducks go in winter
Ducks winter in mild areas where food is plentiful and the water rarely freezes like the Mississippi Alluvial Valley in the southern area of the United States. Another great …
the warmest temperature zone of the ocean is the
The hottest ocean area is in the Persian Gulf, where water temperatures at the surface exceed 90 degrees Fahrenheit in the summer. Another hot area exists in the Red …
what type of bond joins amino acids to make peptides
Each amino acid is attached to another amino acid by a covalent bond, known as a peptide bond. When two amino acids are covalently attached by a peptide bond, …
how long does it take to drive through europe
If you were to drive this amazing road trip across Europe in one go, without stopping and without sleeping, it would take about 364 hours or 16 days to …
according to siddhartha how will he find enlightenment
In Siddhartha, Siddhartha learns that enlightenment cannot be reached through teachers because it cannot be taught—enlightenment comes from within. Siddhartha begins looking for enlightenment initially by looking for external …
what is found in rna but not dna
Uracil is present in RNA but not in DNA. Which base is present in RNA but not in DNA? – Toppr https://www.toppr.com › ask › question https://www.toppr.com › ask …
what does the bear symbolize in the kite runner
I am wrestling the bear. ‘ In this dream, the bear might represent Assef, the Talib, or it could represent his guilt that he is finally facing when as …
who were the first producers of rap records
Rap music is usually traced back to such late 70s offerings as the Fatback Band’s “King Tim III” and Sugarhill’s “Rapper’s Delight”, which were the first rap/hip-hop records. Hip …
four abiotic factors in a prairie ecosystem
All plant species need sunlight, water, space, and soil nutrients (abiotic factors) but are often eaten by animals (biotic factors). What Is A Biotic Factor In The Prairie Ecosystem …
why did farmers support backing money with silver
Supporters of free silver included owners of silver mines in the West, farmers who believed that an expanded currency would increase the price of their crops, and debtors who …
energy of motion is also known as
The energy of motion is called Kinetic Energy. Error message | View complete answer on https://homework.study.com
is bike long or short vowel
Placing an E at the end of a word also creates a long vowel sound. This happens in words like ‘bake,’ ‘bike,’ ‘mote,’ ‘mute. ‘ Notice how the word …
what is the outer core state of matter
Outer Core The outer core, about 2,200 kilometers (1,367 miles) thick, is mostly composed of liquid iron and nickel. Error message | View complete answer on https://www.nationalgeographic.org
why is humidity higher at night
More Videos. Cassie explains that humidity changes based on the difference between the actual air point temperature and the dew point temperature, so when temperatures lower at night, the …
when ice melts is it a chemical change
No chemical changes took place when you melted the ice. The chemical composition of water remains same, it only changes its state from one form of matter (solid) to …
how long will it take to get to mexico
Flying time from United States to Mexico The total flight duration from United States to Mexico is 2 hours, 39 minutes. This assumes an average flight speed for a …
what makes a good solvent for recrystallization
An ideal crystallization solvent should be unreactive, inexpensive, and have low toxicity. It is also important that the solvent have a relatively low boiling point (b.p. often
another name for the civil war
American Civil War, also called War Between the States, four-year war (1861–65) between the United States and 11 Southern states that seceded from the Union and formed the Confederate …
elements that react violently with water
The alkali metals (Li, Na, K, Rb, Cs, and Fr) are the most reactive metals in the periodic table – they all react vigorously or even explosively with cold …
all living things need air to breathe
Most living things need oxygen to survive. Oxygen helps organisms grow, reproduce, and turn food into energy. Humans get the oxygen they need by breathing through their nose and …
is active now accurate on messenger
Facebook Messenger’s active status is not 100% accurate. There are various explanations for why your Facebook Messenger active status is inaccurate. They include: Facebook Messenger is running in the …
how hot is it inside a volcano
The eruption temperature of Kīlauea lava is about 1,170 degrees Celsius (2,140 degrees Fahrenheit). The temperature of the lava in the tubes is about 1,250 degrees Celsius (2,200 degrees …
how does a shooting star work
A “falling star” or a “shooting star” has nothing at all to do with a star! These amazing streaks of light you can sometimes see in the night sky …
which two atmospheric layers have temperature profiles that promote convection
Mesosphere and Troposphere. Very powerful cyclonic storms that form over warm tropical waters are called? What is the most abundant element in the earth’s atmosphere … https://www.coursehero.com › 28064690… …
how does bohr’s model of the atom differ from rutherford’s
Answer and Explanation: Bohr’s model of the atom had the electrons circling the nucleus comparable to planets orbiting the Sun. Rutherford’s model of the atom had a nucleus, but …
the fossil record is incomplete because
The fossil record is considered to be incomplete because fossilization is a very rare phenomenon. Most organisms decompose quickly after their death, and their remains dispersed. Error message | …
different types of terrain on earth
15 Common Types of Terrain and Infographic Plateau. A plateau is a level, high tract of land significantly above the surrounding terrain. … Mountain. These massive slabs of rock …
deposition of water vapor to ice
Frost is the deposition of water vapour from humid air or air containing water vapour on to a solid surface. Solid frost is formed when a surface, for example …
how many pores on human body
5 million pores Pores can be found on every inch of skin, except for the palms of your hands and the soles of your feet. In fact, the adult …
why are specialized cells found only in multicellular organisms
Why do multicellular organisms contain specialized cells? To more efficiently perform wide variety of physiological and biochemical functions. A unicellular organism cannot specialize to the degree as all the …
how many chapters in the book of esther
The purpose of this study is to examine how the content of a biblical book is divided with different types of divisions. We chose the little book of Esther …
what does the dust symbolize in a rose for emily
In a way, the dust is a protective presence; the aldermen cannot penetrate Emily’s murky relationship with reality. The layers of dust also suggest the cloud of obscurity that …
how many carbon atoms does glucose have
six carbon atoms Glucose has an aldehyde group (-CHO) on carbon atom number one and is therefore called an “aldose,” also it has six carbon atoms (a hexose) so …
both earthquakes and volcanoes are a result of
Both volcanoes and earthquakes occur due to movement of the Earth’s tectonic plates. They are both caused by the heat and energy releasing from the Earth’s core. Earthquakes can …