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For 10$a page, you can get your written essay. # What happens when the electron moves from the first energy level to the second energy level? Energy is absorbed, and an emission line is produced. Energy is released, and an emission line is produced. Energy is absorbed by the atom. Energy is lost from the atom. Energy is absorbed by the atom. Emission lines occur only in the case of transitions from higher to lower energy levels in which energy is emitted. ## Related Questions Posted in Physics Which of the following is not an example of kinetic energy? mechanical energy nuclear energy electrical energy thermal energy It is only mechanical energy that is kinetic energy while the other choices are not kinetic energy. Nuclear, electrical and thermal are other types of energy. Hope this answers the question. Have a nice day. Feel free to ask more questions. Posted in Physics Nuclear reactions result in tremendous amounts of a. uranium. b. energy. c. fission. d. mass. I believe the correct answer from the choices listed above is option B. Nuclear reactions result in tremendous amounts of energy. nuclear reaction is considered to be the process in which two nuclear particles interact to produce two or more nuclear particles or ˠ-rays. Hope this answers the question. Posted in Physics If a 375 mL sample of water was cooled from 37.5 C to 0 C how much heat was lost in joules? Please, you have to apply the formula below: Q=c∗m∗Δt where Q is the energy lost, c is the specific heat of water, m is the mass of water involved, so m=3.75 *10^-1 Kg c=4,184 J/(Kg*°C) delta t=37.5 °C I hope my answer has come to your help. God bless and have a nice day ahead! TopAcademicTutors.Com Expert Assignment Help for students who have pending assignments. For 10$ a page, you can get your written essay.

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Where do plants get energy to live and grow?

From the sun, i think thats what it is.

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Explain Why must a cooling system do work to transfer thermal energy?

Although internal energy will not spontaneously flow from a cold region to a hot region, it can be forced to do so by doing work on the system.Refrigerators and heat pumps are examples of heat engines which cause energy to be transferred from a cold area to a hot area. Usually this is done with the aid of a phase change, i.e., a refrigerant liquid is forced to evaporate and extract energy from the cold area. Then it is compressed and forced to condense in the hot area, dumping its heat of vaporization into the hot area. ARE YOU FROM K12?

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For 10$a page, you can get your written essay. Posted in Physics A car starts from xi = 12m at ti = 0 and moves with the velocity graph shown in figure below. What is the objects position and t=3s and t=4s? Picture in comments below Our starting velocity is V0 = 12m/s There are 2 ways of solving this question First is to use formula which connects starting speed, acceleration (which we would calculate from graph where we can see how speed changes) and time to calculate traveled distance. S = V0 * t + 1/2*a*t^2 acceleration a is a = -4m/s^2 S(t=3s) = 18 On this value we add 12 initial meters of distance and we get S(t=3s) = 30 meters For t=4s we get S = 16 m Plus initial distance of 12 m we get 30 meters Answers are 30 and 28 meters. ------------------------------------------ second way is to find surface of graph bellow speed line for 3 and 4 seconds... Posted in Physics Which is an example of transforming potential energy to kinetic energy? Check all that apply. changing thermal energy to electrical energy changing chemical energy to thermal energy changing nuclear energy to radiant energy changing radiant energy to electrical energy changing mechanical energy to chemical energy When we say potential energy, this is the energy at rest. And kinetic energy is the energy at motion. So, here are the examples of energy that is transforming from potential energy to kinetic energy: changing thermal energy to electrical energy, and changing radiant energy to electrical energy. Hope this answer helps. TopAcademicTutors.Com Expert Assignment Help for students who have pending assignments. For 10$ a page, you can get your written essay.

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If a substance containing charged ions and electrons can be compressed so that the particles have less space between them, the substance is a gas. plasma. solid. liquid.

Explanation:

Plasma is a hot ionized gas that contains approximately equal number of both positive ions and negatively charged electrons.

Thus, we can conclude that if a substance containing charged ions and electrons can be compressed so that the particles have less space between them, the substance is a plasma.

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If two carts collide, what type of collision will conserve both momentum and kinetic energy? a. head on b. perfectly inelastic c. none d. perfectly elastic

The appropriate answer is d. perfectly elastic. When a perfectly elastic collision occurs both momentum and kinetic energy are preserved. Momentum is the mass of an object times its velocity while kinetic energy is the energy that a moving object has due to its motion. In an elastic collision kinetic energy would be converted to some other form of energy.

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Rounded to the nearest whole number, what is the atomic mass of platinum? 78 117 195 273

Answer: The atomic mass of the platinum will be 195.

Explanation:

We know that,

Atomic mass is the sum of the electrons and protons.

Platinum is the chemical element and it is the symbol is Pt. The atomic number of the platinum is 78 and the atomic mass is the 195,084 u.

According to the question,

Rounded to the nearest whole number

Hence, The atomic mass of the platinum will be 195.

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For 10$a page, you can get your written essay. Posted in Physics Crystals can have _____ bonds between their atoms. ionic covalent metallic all types of ### Answer; All types of Crystals can have all types of bonds between their atoms. ### Explanation; • Crystals are solid materials which contains atoms, molecules or ions that are arranged in a complex structure forming a crystal lattice. • Crystals may have all types of bonds, these includes; ionic bonds, formed as a result of transfer between a metallic bond and a non-metal atom, Covalent bond, formed as a result of sharing electrons between non metal atoms, hydrogen bonds, metallic bonds Van der Waals bonds, etc. TopAcademicTutors.Com Expert Assignment Help for students who have pending assignments. For 10$ a page, you can get your written essay.

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W many atoms of nitrogen are in the chemical formula Ni(NO3)2

There are 2 atoms of nitrogen in that chemical formula.

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A substance made of one or more atoms of a single type is a ?

An element is a substance made up of only one type of atom.

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An atom that has 84 protons and 86 neutrons undergoes a reaction. At the end of the reaction, it has 82 protons and 84 neutrons. What happened to the atom?

Answer: The atom undergoes alpha decay.

Explanation: An atom has 84 protons and 86 neutrons initially. When this atom undergoes a reaction the product obtained has 82 protons and 84 neutrons.

As the product obtained has 2 protons less and 2 neutrons less which means that the mass number is decreased by 4 units and atomic number is reduced by 2 units.

The atom undergoes an alpha-decay because in this decay the particle emitted is alpha particle which has an atomic number of 2 and atomic mass of 4 units.

Equation follows: The atom which is undergoing alpha decay is Polonium (Po) and the product formed is Lead (Pb).

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For 10$a page, you can get your written essay. Posted in Physics When would the temperature and thermal energy of an object differ? The difference between temperature and thermal energy is that temperature measures the average kinetic speed of molecule and thermal energy is the total kinetic energy of all particles in a given substance. Posted in Physics An is_____ produced around a wire when electrical current is in the wire A magnetic field is produced around a wire when electrical current is in the wire :) TopAcademicTutors.Com Expert Assignment Help for students who have pending assignments. For 10$ a page, you can get your written essay.

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For 10$a page, you can get your written essay. Posted in Physics Which makes fast-moving water a greater force of erosion? A. greater heat capacity B. greater energy C. increased density D. greater oxidation Answer: B. Greater energy Explanation: Fast moving water is very energetic as its can displace very large rocks, boulders and make pebbles and sand out of them through the process r erosion. Fast moving water have kinetic energy, it opposes anything that come in its way. As river make its own channel by eroding plane. Many antecedent rivers have make their channel by cutting large mountains too. Posted in Physics Which atom in a water molecule has the greatest electronegativity?? The oxygen atom in a water molecule has the greatest and or highest electronegativity, it has the greatest ability of all of the elements in a water molecule, 2, to pull electrons closer towards its own atom. TopAcademicTutors.Com Expert Assignment Help for students who have pending assignments. For 10$ a page, you can get your written essay.

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1. In the circuit shown below, with each bulb holding a resistance of 100 ohms, how many amps of current are flowing? Express your number as a decimal. (See Figure) 2. Protons have positive charge, neutrons have negative charge, and electrons have no charge. A. True B. False 3. A complete electric circuit includes a voltage source, current, wires, and something to _________ the flow of current.

These are 3 questions and 3 answers.

Question 1.

Explanation:

a) Data:

i) Type of circuit: series

ii) R₁ = 100 Ω

ii) R₂ = 100 Ω

iii) V = 2 V

iv) I = ?

b) Formulas

i) Equivalent resistance, R = R₁ + R₂

ii) Ohm's law, V = IR

c) Solution

i) R = 100Ω + 100Ω = 200Ω

ii) I = V / R = 2 V / 200Ω = 0.01 A

Question 2)

Explanation:

The nuclear model of the atom states that the atom is neutral, and consists of a nucleus, which holds the protons and the neutrons, and the electrons which are around the nucleous (in regions called orbintals).

The electrons are negatively charged and the protons are positively charged.

The magnitudes of the charges of both electrons and protons are equal.

Therefore, for the atom be neutral, the neutrons cannot have charge.

Question 3.

Explanation:

1) The most basic electrical circuit consists of a 1) potential difference (voltage) source, which gives the "impulse" to the charge to flow, 2) the wire, which is the medium through which the charge flows), and 3) a resistor.

The resistor is the element with "resistance" to the flow of charge, this is it resists or oppose the flow of charge.

Some components, like motors, filaments, buzzers, which content or are resistors per se, transform the current (flow of charge) in other useful forms of energy (motion, light, heat, sound).

The resistor meets Ohm's law which states R = V / I, at constant temperature.

Posted in Physics

When an electron moves from a lower to a higher energy level the electron?

A photon is absorbed

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Valence electrons are in which shell? First Outer Most Inner Most None of the above

Valence electrons reside in outermost shell.