Calculate the kinetic energy of a 100kg cart moving at a speed of 6 m/s.
Answers
The kinetic energy of a cart weighing 100kg moving at a speed of 6 m/s is 1800 J.
Kinetic energy is defined as the energy that an object has because of its motion. If you want to accelerate an object, then you must apply a force. Force can be applied when work is done by us. After work has been done, the energy will get transferred to the object, and the object will be moving with a new constant speed.
Formula for kinetic energy is given as,
K.E = 1/2 mv²
m = 100 kg
v = 6 m/s
Substituting the values we get,
K.E = 1/2 × 100 × 6 × 6
⇒ K.E = 1800 J
Hence, The kinetic energy of a 100kg cart moving at a speed of 6 m/s is 1800 J.
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Related Questions
predict if the reaction takes place, balance reactionPb + AgNO3a
Answers
This is a substitution reaction
why hydrogen and oxygen atoms are more stable when they form bonds in a water molecule?
Answers
The outer shell of electrons is full, so there is no need to gain or lose electrons.
The hydrogen and oxygen atoms are more stable in water molecules as they get a complete valence shell when they bonded with other atoms.
What is the reaction to the formation of water?In a chemical reaction, two or more reactants react with each other under the chemical condition to form two or more products. The Chemical reaction is defined as a reaction two or more reactant components react with each other to form two or more products.
The water is formed by reacting hydrogen and oxygen. The chemical reaction of water formation is shown below.
\(H_2(g)+O_2(g)\longrightarrow H_2O(l)\)
The balanced chemical equation can be defined as a reaction where the number of moles of reactants is equal to the number of moles of products.
\(H_2(g)+ \frac{1}{2}O_2(g)\longrightarrow H_2O(l)\)
The hydrogen atoms have one electron and the oxygen has two electrons less than the complete valence shell. But in the water molecule, every atom has a complete valence shell so atoms become more stable.
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2. Which of the following is a physical property that Mendeleev used to design the periodic table?
F. Atomic weight
Guidation state
H. Reactivity with metals
1 Crystalline structure
Answers
Answer:atomic weight
Explanation:
In Beaker A, an antacid tablet is added to 50 mL of 20ºC water. In Beaker B, an antacid tablet is added 50 mL of 70ºC water. In which beaker will the reaction occur faster?
B
both will occur at the same rate
A
Answers
In Beaker A, an antacid tablet is added to 50 mL of 20ºC water. In Beaker B, an antacid tablet is added 50 mL of 70ºC water reaction occur faster in the beaker B
Antacid tablet are the medicine for acid in the stomach to relieve indigestion and heartburn and in the given data in beaker A the antacid tablet is added in 50mL of 20ºC water and then in beaker B an antacid tablet is added 50 mL of 70ºC water then in beaker B the reaction will occur fast because in beaker B the temperature of water is more than beaker A so the antacid tablet will dissolve fastly in more temperature than in less temperature
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What subatomic particles are found within a nucleus
What do the elements in the first row have in common please answer both
Answers
Answer:
In the middle of every atom is the nucleus. The nucleus contains two types of subatomic particles, protons and neutrons. The protons have a positive electrical charge and the neutrons have no electrical charge. A third type of subatomic particle, electrons, move around the nucleus
All of the elements in a period have the same number of atomic orbitals. For example, every element in the top row (the first period) has one orbital for its electrons.
What happens to the hydrogen and oxygen molecules when they rearrange to from water.something must be recombined.How does this happen?
Answers
When the preexisting molecular links are broken and new bonds are created between oxygen and hydrogen atoms, hydrogen molecules react strongly with oxygen molecules.
The outcome is an explosive release of energy and the formation of water since the reaction's products are at a lower energy level than its reactants.
What kind of response takes place when water is created?The most well-known instance of a synthesis reaction is the burning of hydrogen and oxygen to produce water.
What causes water to form?Most of the water that was created was in the form of vapors, which mixed with cosmic dust on the way to the earth's surface. These water vapors condensed into oceans, seas, rivers, and lakes when the world first came into existence.
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determine how many grams of kno3 would dissolve in 100g of water at 50 degrees celcuis to make a saturated solution
Answers
The amount of KNO₃ would dissolve in 100g of water at 50 degrees celcuis to make a saturated solution is 44 g.
To create a saturated solution of KNO₃ in 100g of water at 50 degrees Celsius, the following steps should be taken:
Step 1: Find out the mass of the solvent in the saturated solution.
The solvent is water in this instance. So, using the formula for the mass of a solution, we can calculate the mass of the solvent in the saturated solution as follows:
Mass of solvent = Mass of solution - Mass of solute
= 100 g - Mass of KNO₃
Step 2: Determine the amount of solute that would be dissolved in the solution to make it saturated.
The mass of KNO₃ that would dissolve in 100 g of water at 50°C to create a saturated solution is 56g/100g of water.
Step 3: Calculate the mass of KNO₃ that would dissolve in 100g of water to make a saturated solution.
Mass of KNO₃ = Solubility of KNO₃ × Mass of solvent
Mass of KNO₃ = 56 g/100 g × (100 g - Mass of KNO₃)
Now, let's solve for Mass of KNO₃;
56 = 56g(100-Mass of KNO₃)/100100 - Mass of KNO₃ = 100
Multiply both sides of the equation by 100 to obtain;
5600 - 100 Mass of KNO₃ = 100
Mass of KNO₃ = 5600/10100 - 56
= 44 g
Therefore, 44 g of KNO₃ would dissolve in 100g of water to make a saturated solution.
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What does a molecule structurally have to have in order to be able to form condensation polymers vs only being able to form a single ester?.
Answers
The ester can polymerize if both the acid and the alcohol have different functional groups.
What is a molecule, for instance?A molecule is the smallest unit of any material that is composed of one or more elements and is capable of existing independently while maintaining all of the substance's physical and chemical properties. Further atom division occurs within molecules. For instance, the symbols for the oxygen atom and molecule are O and O2, respectively.
What is a molecule, exactly?The smallest component of a substance which possesses both its chemical and physical characteristics. One or even more atoms make up molecules.
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list one difference between blended fibres and regenerating synthetic fibres
Answers
Answer:
blended is better than synthetic fibre. because blended fabrics have quality of synthetic and natural fibres so they are more better than fabrics. For example terrycot. Blended Fibres are considered better than individual synthetic fibres because they show the advantages of 2 or more fibres.
How many molecules are in6.0 moles of methane (CH4)?Let's begin by setting up our equation.What belongs in the green box?6.0 moles CH4 [?]Il mole CH4A. 1 mole CH4B. 6.02 x 1023 molecules CH4Enter
Answers
The Avogadro's number is the constant number for the number of atoms or molecules represented in 1 mol, this number is equal to 6.022*10^23, to find out how many molecules there are in 6.0 moles we can set up this equation:
6.0 moles of CH4 * 6.022*10^23 molecules / 1 mol of CH4
The answer will be 3.61*10^24 molecules of CH4
What is the molar mass of C2H4O2?
Answers
Answer:
60.052 g/mol
Explanation:
Answer:
60.052 g/mol
I hope it can help
Reaction of an alkene with H2 to form an alkane is an example of a(n) _____ reaction because there is a(n) _____ in the number of C-H bonds. Multiple choice question. reduction, increase reduction, decrease oxidation, increase oxidation, decrease
Answers
Reaction of an alkene with H2 to form an alkane is an example of reduction reaction because there is an increase in the number of C-H bonds.
Tanisha is mixing powdered orange drink mix into a cup. She wants to make sure the orange taste is strong, so she adds a lot of powdered mix. As she is mixing, she notices that the powdered mix starts to float around in the water in clumps, and some settles on the bottom of the cup. Predict why this would happen.
A.
The powder is too old to dissolve in the water.
B.
No more powder will dissolve in the water.
C.
The powder needs to be shaken to fully dissolve.
D.
The powder does not fully dissolve because the water is too warm.
Answers
Answer:
B. No more powder will dissolve in the water.
Explanation:
If a lot of powder is added to the water, then a fully saturated solution would be created. This means that no matter how much more powder is added or how strong the mix is shaken, no more powder will disolve. The powder will instead remain in solid form in the solution.
Answer:
Heat up the water first because it increases solubility of the powdered mix.
Explanation:
Took the test on Edg. Hope this helps!! :)
4. A piece of limestone (CaCO3) with an initial mass of 3.24 g is placed in 100 mL of a HCl solution. The
calcium carbonate reacts with the hydrochloric acid solution to yield calcium chloride, carbon dioxide, and
water. Once this reaction goes to completion there is still 2.24 g of excess limestone left in the solution.
Write a balanced equation to represent this reaction and find the molarity of the hydrochloric acid
Answers
Explanation:
The balanced chemical equation for the reaction between calcium carbonate (CaCO3) and hydrochloric acid (HCl) is:
CaCO3 + 2 HCl → CaCl2 + CO2 + H2O
According to the problem, 3.24 g of calcium carbonate reacted with excess hydrochloric acid, leaving 2.24 g of excess limestone in the solution. This means that 3.24 - 2.24 = 1 g of calcium carbonate reacted with the hydrochloric acid. We can use this information to calculate the number of moles of calcium carbonate that reacted:
1 g CaCO3 / 100.09 g/mol CaCO3 = 0.00999 mol CaCO3
Since the balanced chemical equation shows that 1 mole of calcium carbonate reacts with 2 moles of hydrochloric acid, we know that 0.01998 moles of hydrochloric acid reacted. We can use this information to calculate the molarity of the hydrochloric acid solution:
Molarity = moles of HCl / volume of solution
Molarity = 0.01998 mol / 0.1 L
Molarity = 0.1998 M
Therefore, the molarity of the hydrochloric acid solution is 0.1998 M.
define a near azeotropic refrigerant blend and give two examples
Answers
A near-azeotropic refrigerant blend is a mixture of two or more refrigerants that have similar boiling points and vapor pressures, resulting in a composition that behaves like a single fluid. These blends are designed to offer improved performance and efficiency compared to single-component refrigerants.
Two examples of near-azeotropic refrigerant blends are R-410A and R-404A.
R-410A is a blend of difluoromethane (R-32) and pentafluoroethane (R-125), which has replaced R-22 as a popular refrigerant for air conditioning systems due to its superior efficiency and environmental properties.
R-404A is a blend of tetrafluoroethane (R-134a), pentafluoroethane (R-125), and 1,1,1,2-tetrafluoroethane (R-143a), which is commonly used in commercial refrigeration applications such as supermarkets and convenience stores.
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Draw the product for the intramolecular aldol reaction (with dehydration) of 2,5-hexanedione.
Answers
The product for the intramolecular aldol reaction (with dehydration) of 2,5-hexanedione is 3,5-dimethyl-2-cyclopentenone.
To draw the product, follow these steps:
1. Identify the reactive sites: The alpha-carbon (next to carbonyl groups) of 2,5-hexanedione can act as a nucleophile, and the carbonyl group can act as an electrophile.
2. Formation of enolate: Deprotonate the alpha-carbon of the less hindered carbonyl group to form an enolate anion.
3. Intramolecular aldol reaction: The enolate anion attacks the carbonyl group of the other ketone, forming a 5-membered ring and an alcohol.
4. Dehydration: The alcohol formed in the aldol reaction loses a water molecule to form a double bond, resulting in a conjugated enone.
The final product is 3,5-dimethyl-2-cyclopentenone, a 5-membered ring with a conjugated enone system.
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22. The estimated age of the Universe is this number:
a) 9 billion years
b) 700 million years
c) 26, 000 years
d) 4.7 billion years
e) 13.7 billion years
Answers
The estimated age of the Universe is 13.7 billion years. This is calculated by measuring the rate at which the universe is expanding and the rate at which it has cooled since the Big Bang.
Scientists use a variety of techniques to measure the age of the Universe, such as looking at the red-shift of distant galaxies and measuring the cosmic microwave background radiation.
By analyzing these indicators, scientists have been able to determine the age of the Universe to within a few hundred million years. It is theorized that the Universe was created in a single event known as the Big Bang, and that it has been expanding and cooling since then. This suggests that the Universe is around 13.7 billion years old, give or take a few hundred million years.
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animal cells do not have a cell wall. why is this advantage for these eukaryotes ?
Answers
100% The Great Plains area of the United States is known for its abundant groundwater and rich soil. How do these natural resources most likely affect the people in the Great Plains? OA. Building in the area is difficult because the ground is unstable. OB. People migrated away from the area to avoid large seasonal floods. Oc. Many people in the area participate in large-scale farming and agriculture. OD. The area has become enriched in oil and gas over time so fuel is inexpensive.
Answers
The most likely effect of the abundant groundwater and rich soil in the Great Plains area on the people is many people in the area participate in large-scale farming and agriculture.
With its rich soil and plentiful groundwater resources, the Great Plains region is ideally suited for agriculture. It is the perfect place for large scale farming and agriculture as the soil is rich in nutrients and promotes the growth of crops. As a result, a large number of people live in the Great Plains and work in agriculture, such as growing crops and raising cattle. Agriculture plays an important role in the region's economy and way of life, creating jobs and increasing the general prosperity of the towns and cities of the Great Plains.
So, the correct option is C.
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WILL MARK BRAINLIEST WConsider two elements. Element A has a low ionization
energy of 500 kJ/mol and element B has a high ionization
energy of 1050 kJ/mol. Which element is most likely to form
a positive ion? [Select ]
In which block would you most likely find Element A?
Select)
In which block would you most likely find Element B?
[Select]
Answers
Answer:
the one with the lower ionization energy is more likely to be positive as it is easier to remove the valence electron that causes the positive charge
element a is likely in the s block as that is a low ionization energy and they get larger as you move up and to the R in the table
and element b is likely in the p block for the same reason
Explanation:
what does Le châteliers principle state?
Answers
Hope this helps!
true or false just a single row of bonds across a slip plane breaks simultaneously [i.e., not the entire plane of bonds] when a material undergoes plastic deformation.
Answers
Answer: true
Explanation: because they slip simultaneously causing the charged particles to go through plastic deformation which increases the hydroplasisis of the ions
Which property is NOT used to separate a mixture?
Answers
Answer:
Conductivity.
Explanation:
The Atomic mass if hydrogen us 1.008 amu. The reason that this value is not a whole number is that
A. The Mass of hydrogen is the sum of the masses of the protons and electrons in the atom
B. Hydrogen has more than one isotope
C. Hydrogen only exists as a diatomic molecule
D. The Mass of a proton is not exactly equal to 1 amu
Answers
Answer:
I'm pretty sure its c
Explanation:
The atomic mass of hydrogen, which is 1.008 amu, is not a whole number because hydrogen has more than one isotope.
The atomic mass of an element is got from the sum of the proton and neutron in its atom. However, the atoms of some element exists in more than one isotope. Isotopes are atoms of the same element with same atomic number but different atomic masses. The different atomic masses arise from the difference in the number of neutrons of each isotope. Hydrogen has more than one isotope. The atomic mass of an element with more than one isotope is the weighted average of the mass numbers of the different isotopes of that element, hence, the resulting value cannot be a whole number.Learn more at: https://brainly.com/question/11680817?referrer=searchResults
What is the number of valance electrons for oxygen
Answers
Answer:
six
Explanation:
Valence electrons are the electrons in the outermost shell, or energy level, of an atom. For example, oxygen has six valence electrons, two in the 2s subshell and four in the 2p subshell.
Answer:
Six!
Explanation:
Valence electrons are the electrons in the outermost shell of an atom.
Cyclohexene oxidation with potassium permanganate gives three different products, depending on conditions. what product (one) could not be obtained
Answers
Answer:
will you help us with that one please
1. SiH4 what is the covalent compounds
Answers
Answer: Silicon tetrahydride (silane) is a covalent compound where a central silicon (Si) atom is covalently bonded to 4 terminal hydrogen (H) atoms.
Explanation:
just want you to know that I hope you have a wonderful day/night!
Answers
Answer:
Aw, Thanks!
Explanation:
Hope you have a great day/Night!
Hydrofluoric acid is what type of acid?
Answers
Hydrofluoric acid is a solution of hydrogen fluoride (HF) in water. Solutions of HF are colourless, acidic and highly corrosive. It is used to make most fluorine-containing compounds; examples include the commonly used pharmaceutical antidepressant medication fluoxetine (Prozac) and the material PTFE (Teflon).
Is the Earth's surface covered with the same materials?
What was different about each scientific drilling site?
What is the same for all of the drilling sites we examined?
Answers
The Earth's surface is not covered with the same materials ; however, some areas share similar materials.Several drilling sites have been dug in various regions of the planet to analyze the Earth's surface.
Each drilling site is unique, with differing characteristics and results. Despite these differences, all of the drilling sites analyzed offer scientists a more in-depth knowledge of the Earth's surface.In essence, the scientific drilling sites each had different lithologies, stratigraphies, and geologies. Each site had different types of rocks, depths, and ages, which led to varying drilling conditions, depths, and equipment used. Different types of equipment were also used to reach the depths required, which was a significant difference in each drilling site.The scientific drilling sites also had different purposes. Scientists had specific goals they wanted to achieve at each location. For example, the scientific drilling site in the Iceland region was focused on analyzing a unique layer of igneous rocks. The primary objective was to investigate the formation of the rock layer.The same materials were not found at each scientific drilling site.
Still, they had some similarities. They all provided geologists with vital information about the Earth's surface. The data provided from each drilling site was used to piece together the Earth's geologic history and how it has changed over time.
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