Explain the difference between potential energy and kinetic energy.



Sentence Starters

"Potential Energy is. . "

"Kinetic Energy is. . "

"The difference between potential energy and kinetic energy is. . ."

The formula for the relationship between weight and blood pressure in children is:

We differentiate the above function with respect to x Therefore:

Rate of change at the 70-pound weight level:

Blood is a fluid found in all living things that functions to deliver substances and oxygen needed by body tissues, transports chemical products of metabolism, and also acts as the body's defense against viruses or bacteria. Blood has the function of regulating acid and base balance. ,transports O2, carbohydrates, and metabolites, regulates body temperature by conduction or conduction, carries body heat from heat production centers (liver and muscles).

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Answer:

The noble gases are relatively nonreactive. In fact, they are the least reactive elements on the periodic table. This is because they have a complete valence shell. They have little tendency to gain or lose electrons.

Explanation:

Answer:

numbers of molecules = 3×6.023×10-23

The specific heat of the metal is 0.220106  (J/g °C).

Solution:

This can be calculated using the equation q = mc∆T, where q is the energy given off, m is the mass of the metal (5.25 g), c is the specific heat of the metal, and ∆T is the change in temperature (40.5 °C - 49.5 °C = -9 °C).

Thus, c = -10.4 J / (5.25 g * -9 °C), which can be simplified to 0.220106  (J/g °C).

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The balanced chemical equation is:

0.5C7H16 + O2 → 0.5CO2 + H2O

For balancing the chemical equation C7H16 + O2 → CO2 + H2O, we can use linear algebraic techniques. We need to determine the coefficients that balance the number of atoms on both sides of the equation.

Let's denote the coefficients for C7H16, O2, CO2, and H2O as a, b, c, and d, respectively.

The balanced chemical equation can be written as:

aC7H16 + bO2 → cCO2 + dH2O

To balance the carbon (C) atoms, we have:

7a = c (Equation 1)

To balance the hydrogen (H) atoms, we have:

16a = 2d (Equation 2)

To balance the oxygen (O) atoms, we have:

2b = 2c + d (Equation 3)

We have three equations (Equations 1, 2, and 3) and four unknowns (a, b, c, d). To solve this system of equations, we can write it in matrix form and find the solution using linear algebraic techniques.

The augmented matrix for the system of equations is:

[ 7 0 -1 0 | 0 ]

[ 0 0 0 -2 | 0 ]

[ 0 -2 2 -1 | 0 ]

By performing row operations to row-reduce the augmented matrix, we can obtain the solution:

[ 1 0 -0.5 0 ]

[ 0 1 -1 -0.5 ]

[ 0 0 0 0 ]

The solution to the system of equations is:

a = 0.5

b = 1

c = 0.5

d = 1

Putting the values of a,b,c, and d we get the balanced chemical equation as:

0.5C7H16 + O2 → 0.5CO2 + H2O

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Answer: D) Sufficient kinetic energy

Explanation:

The orbital hybridization of the central carbon atom in CSe2 is sp.

In chemical bonding, atomic orbitals may be combined to form appropriate hybrid orbitals suitable for bonding. The orbitals that combine during hybridization must be close enough in energy.

In the compound Cse2, carbon is the central atom bonded to two selenium atoms. The carbon atom in CSe2 is sp hybridized.

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Answer:

I'm not really sure. but I think is D

Answer: B, Molar concentration is proportional to the change in the number of moles in a reaction

Explanation: took the test on plato

Answer:

Gas>Liquid>Solid

Explanation:In a gas state, molecules are allowed to move freelyand  rarely collide into nearby particles. In a liquid state, the molecules are contained within the liquid and occasionally bump into each other. now in a solid state the atoms arrange themselves into a structure that the atoms sit very tightly next to each other, sometimes vibarating

Answer:

1.0555 * 10^24 molecules

Explanation:

Number of molecules = ?

Mass = 3.79  Kg = 3790 g

Molar mass of Cs7(Cr5O3)4 = 2162.25 g/mol

Number of moles = Mass / Molar mass

Number of moles = 3790 g / 2162.25 g/mol

Number of moles = 1.7528 mol

1 mol = 6.022 * 10^23 molecules

1.7528 mol = x

solving for x;

x = 6.022 * 10^23 *  1.7528

x = 1.0555 * 10^24 molecules

Answer:

It comes from same parent material.

Explanation:

The two rocks have some similar minerals which indicates that they are comes from the same parent material but with the passage of time it is mixed with other minerals due to which they are some different in composition from one another so we can conclude that they comes from the same parent material due to the presence of some similar minerals.

An unknown element has three naturally occurring isotopes total average atomic mass 20.18 amu and element from the periodic table is neon

Isotopes are the members of a family of an element that all have the same number of protons but different numbers of neutrons

There are three neon isotopes and the more abundant ²⁰Ne and ²¹Ne are both essentially all primordial, as there is no significant global production of these isotopes and also ²²N

Neon 20 is made up of ten proton and ten neutron the atomic mass unit of the gas is 19.992 and the abundance of the gas is 90.48% and neon 21 is made up of ten proton and eleven neutron and the atomic mass unit of the gas is 20.994 and the abundance is 0.27% and neon 22 is made up of ten proton and twelve neutron and the atomic mass unit of the gas is 21.991 and the abundance of gas is 9.25%

Unknown element from the periodic table is neon

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The power radiated by the radiator changes by a factor of 14.1573 when the temperature is increased from 27°C to 54°C.

The formula that relates the power radiated by an object with the fourth power of the temperature is known as the Stefan-Boltzmann Law. It is stated as follows: P = σA(T⁴), where P is the power radiated, σ is the Stefan-Boltzmann constant (5.67 × 10⁻⁸ W/m²K⁴), A is the surface area of the radiator, and T is the temperature in Kelvin.

We must first convert the temperature to Kelvin:

TK = T°C + 273.15

TK1 = 27°C + 273.15 = 300.15 K

TK2 = 54°C + 273.15 = 327.15 K

The factor by which the power radiated changes is the ratio of the power at the new temperature to the power at the original temperature. The equation is as follows:

P2/P1 = (T2/T1)⁴

Substituting the given values:

P2/P1 = (327.15/300.15)⁴

P2/P1 = 1.8856⁴

P2/P1 = 14.1573

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Type II construction has a recurring fire spread problem related to its combustible roof covering. This can be a significant safety concern for occupants of the building and can cause significant damage to the property.

What is construction?

The transfer of heat through the metal roof deck can ignite the combustible materials above, leading to the spread of fire along the roof covering. It is important for building owners, operators, and firefighters to be aware of this potential hazard and take appropriate measures to prevent or control fires in Type II buildings. This may include upgrading the roofing materials to reduce the risk of fire spread, regular inspections of the roof covering, and prompt response to any signs of fire. It is also important for officers and firefighters to examine the roof covering after a fire has been extinguished to ensure that the fire hasn't spread and to take necessary measures to prevent further damage or reignition.

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we find the energy to be approximately \(3.41 * 10^-19\) Joules is the answer.

To calculate the wavelength of a photon with a frequency of 61.7 MHz, we can use the formula: wavelength = speed of light / frequency. The speed of light is approximately\(3 * 10^8\) meters per second.

Converting the frequency to Hz (\(1 MHz = 10^6 Hz\)), we have \(61.7 * 10^6\)Hz.

Plugging these values into the formula, we get: wavelength =\((3 * 10^8 m/s) / (61.7 * 10^6 Hz).\)

Simplifying, we find the wavelength to be approximately 4.862 meters.

Now, to calculate the energy of a photon with a wavelength of 582.8 nm, we can use the equation: energy = Planck's constant × speed of light / wavelength.

Planck's constant is approximately \(6.63 * 10^-34\) Joule-seconds.

Converting the wavelength to meters (\(1 nm = 10^-9 m\)), we have \(582.8 * 10^-9 m.\)

Plugging these values into the equation, we get: energy =\((6.63 * 10^-34J·s) * (3 * 10^8 m/s) / (582.8 * 10^-9 m).\)

Simplifying, we find the energy to be approximately \(3.41 * 10^-19\) Joules.

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Answer: no you need a balance skall to make it the correct balance that you want. yes the hypothesis is correct because you change the balance with your balance scale so obviously it's going to make your hypothesis higher.

Explanation: I HOPE THAT HELPED.

Answer:

The Isotope of sulfur.  

32S 94.99% stable.

33S 0.75%   Stable.

Explanation:

Answer:

23.81%

Explanation:

The mass percent of a solution, also known as percentage by weight or w/w%, can be calculated using the formula:

mass percent = (mass of solute / mass of solution) x 100%

In this question;

Mass of solute (sugar) = 15g

Mass of solution (sugar + water) = 63g

Hence,

w/w% = 15/63 × 100

w/w% = 0.2381 × 100

w/w% = 23.81%

Therefore, the mass percent of the sugar solution is 23.81%.

The amount of radium that decomposes after 555 years is:

100.0 g - 74.7 g = 25.3 g.

The integrated rate law for a first-order decay is: ln([A]t/[A]0) = -kt

where [A]t is the amount of substance remaining after time t, [A]0 is the initial amount of substance, k is the rate constant, and t is the time.

To solve for the amount of radium that decomposes after 555 years, we can use the following equation:

ln([A]t/[A]0) = -kt

ln([A]t/100.0 g) = -(0.693/1620 years) * 555 years

ln([A]t/100.0 g) = -0.297

[A]t/100.0 g = e^(-0.297)

[A]t = (e^(-0.297)) * 100.0 g

[A]t = 74.7 g

Therefore, the amount of radium that decomposes after 555 years is:

100.0 g - 74.7 g = 25.3 g.

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The solubility of Cr(OH)₃ at a pH of 11.00 is 4.69 × 10⁻¹⁰ mol/L. at a pH of 11.00 is 4.69 × 10⁻¹⁰ mol/L.

Given that the Ksp of Cr(OH)₃ is 6.70 × 10⁻³¹ at a pH of 11.00.To find the solubility of Cr(OH)₃, we use the expression for the solubility product. It is given as:Ksp = [Cr³⁺][OH⁻]³We know that at a pH of 11, the concentration of OH⁻ ions is 1.0 × 10⁻³ M.

The reaction is given as:Cr(OH)₃(s) ⇌ Cr³⁺(aq) + 3OH⁻(aq)The concentration of Cr³⁺ is the same as the solubility of Cr(OH)₃(s).Let the solubility of Cr(OH)₃ be x. Then, the concentration of Cr³⁺ is x.[OH⁻]³ = Ksp/Cr³⁺(1.0 × 10⁻³)³ = 6.70 × 10⁻³¹/xx = (6.70 × 10⁻³¹/(1.0 × 10⁻³)³)¹∕³= 4.69 × 10⁻¹⁰ mol/LTherefore, the solubility of Cr(OH)₃ at a pH of 11.00 is 4.69 × 10⁻¹⁰ mol/L.

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An example of molecule that cannot be represented by a single Lewis structure is Ozone (O₃).

A Lewis Structure may be defined as the representation of electrons of an atom with the help of dots and symbols. The symbols are used for representing initials of atom and dots are used for electrons. If there is a molecule, which is to be represented as Lewis's structure, then the bonds are shown with the help of straight line. However, there are some atoms which cannot be represented by a single Lewis structure. For those atoms different resonating structures are drawn. Resonating structures are different Lewis structures f similar molecule or atom in which delocalization of electrons takes place. These structures are drawn because a single Lewis structure is unable to explain all the properties of the molecule.

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Reduction in tourism and Groundwater recharge are possible environmental impacts of flooding  .

What are floods ?

During floods, people need to quickly move themselves and their most valuable possessions to higher ground. Leaving home in search of a safer place is called evacuation. Floods occur at irregular intervals and vary in magnitude, duration and areas affected.

Water flows naturally from high ground to low ground. This means that low-lying areas can flood quickly before they start reaching higher elevations. In rivers, flooding can occur, especially at bends and meanders in the channel, when flow exceeds the bed's capacity. Floods often damage homes and businesses when they are in the natural floodplains of rivers.

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Answer:

the market is largely driven by the growing population, increasing burden of chronic disease, and rising inclination toward targeted therapy.

Explanation:

also, the huge demand of biopharmaceutical is facilitated by an accelerating focus in research and related investment.

Answer:

The less valence electrons an atom has, the least likely it will gain electrons. Electron affinity decreases down the groups and from right to left across the periods on the periodic table because the electrons are placed in a higher energy level far

Explanation:

Answer:

Electron affinity increases upward for the groups and from left to right across periods of a periodic table because the electrons added to energy levels become closer to the nucleus, thus a stronger attraction between the nucleus and its electrons. Remember that greater the distance, the less of an attraction; thus, less energy is released when an electron is added to the outside orbital. In addition, the more valence electrons an element has, the more likely it is to gain electrons to form a stable octet. The less valence electrons an atom has, the least likely it will gain electrons.

Electron affinity decreases down the groups and from right to left across the periods on the periodic table because the electrons are placed in a higher energy level far from the nucleus, thus a decrease from its pull. However, one might think that since the number of valence electrons increase going down the group, the element should be more stable and have higher electron affinity. One fails to account for the shielding affect. As one goes down the period, the shielding effect increases, thus repulsion occurs between the electrons. This is why the attraction between the electron and the nucleus decreases as one goes down the group in the periodic table. hope i helped

Explanation:

The zones with sampling locations A, B, and C in this lake is (c) location A, thermocline; location B, hypolimnion; location C, epilimnion.

Based on the recorded temperatures, we can determine the location of the sampling sites. Late winter and late autumn are cold months, and therefore the hypolimnion would have the coldest temperatures. In late spring and late summer, the epilimnion would have the warmest temperatures as it is exposed to sunlight and warm air temperatures.

From the given options, the correct answer is (c) location A, thermocline; location B, hypolimnion; location C, epilimnion. This is because the thermocline would have moderate temperatures that change rapidly, which is consistent with the temperature recorded at location A in all seasons. The hypolimnion, which is the coldest layer, is consistent with the temperature recorded at location B in all seasons. Finally, the temperature recorded at location C is consistent with the warmest layer, the epilimnion, in all seasons.

In summary, understanding the temperature variations in different zones of a lake is important in identifying the location of temperature-sampling sites. By recording temperatures at different times of the year, we can observe the changes in temperature that occur in different lake zones and understand how these changes impact aquatic life.

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Answer:

covalent

Explanation:

Answer:

1.3155M

Explanation:

molar mass of CuSO4

=63.55+32.07+16(4)

=159.62g/mol

n=mass/molar mass

n=42.00/159.62

n=0.2631mol

volume=200mL=0.2L

molarity=mole (n)/volume (v)

molarity=0.2631mol/0.2L

molarity=1.3155M

Answer:

d cell membrane:)

Explanation:

Answer:

C1V1=C2V2

C1 is 2.0mol/l

V1=?

C2=.4mol/L

V2=100ml or for this 0.1L

V1 is 20ml

Best way to prepare this is to measure out 20ml of the 2 molar solution and add 80mL to it to get to 100mL

Explanation: