Friday
April 18, 2014

Search: energy

Number of results: 16,536

Science
Which 6 are energy from sunlight?? nuclear energy,geothermal energy,tidal energy,fusion energy,wind,hydroelectric energy,solar energy,biomass,fossil fuels,ocean thermal,energy conversion
Monday, November 14, 2011 at 5:18pm by Jason

SCIENCE PLZZ HELP
Which 6 are energy from sunlight?? nuclear energy,geothermal energy,tidal energy,fusion energy,wind,hydroelectric energy,solar energy,biomass,fossil fuels,ocean thermal,energy conversion
Monday, November 14, 2011 at 6:00pm by Jason

Science
During the process of photosynthesis, solar energy is converted into: a. chemical energy. b. heat energy. c. thermal energy. d. mechanical energy. e. nuclear energy. a
Monday, February 26, 2007 at 8:11pm by Dave

Science
Molecules that make up matter move constantly.Which of these forms of energy refers to the energy of the moving molecules and why? A.Chemical Energy B.Thermal Energy C.Electrical Energy D.Light Energy Which device can change electrical energy to light and sound energy? A....
Monday, April 2, 2012 at 5:06pm by Rezu

science-physics
Q1)which of these energy resources does not originate from the suns energy?:natural gas,oil,geothermal energy,coal Q2)the burning of fossil fuels does not release? potential energy,light energy,sound energy , heat energy?? Q3)at the moment renewable energy sources generate? ...
Monday, November 5, 2007 at 4:44pm by elliot

science
a fan uses 150j of mechanical energy, 20j of heat and 75j of sound energy a) what is the total input energy b) what is the total useful output energy c)what is the total wasted energy d) what is the energy efficiency e) what percent of the energy was wasted
Sunday, December 5, 2010 at 3:57pm by Anonymous

Science
Which of these energy changes takes place in a solar cell? A.Heat energy to light energy B.Light energy to electrical energy C.Electrical energy to heat energy D.Thermal energy to electrical energy C?
Monday, April 2, 2012 at 5:42pm by Rezu

physics
Friction converts kinetic energy to a. mechanical energy b. potential energy c. nonmechanical energy d. total energy i don't think its B,..
Saturday, February 21, 2009 at 3:16pm by Bella

Physics
in a compressed spring, energy is in the form of (a) kinetic energy (b) potential energy (c) chemical energy (d) sound energy
Wednesday, August 18, 2010 at 6:48am by Anonymous

Science
Which one of these is a form of stored energy? A. Heat energy B. Light energy C. Electrical energy D. Chemical Energy D?
Monday, April 2, 2012 at 4:26pm by Rezu

science
1.what similarities do nuclear energy and chemical energy share?pick all that apply A.both are types of kinetic energy. B.both are types of potential energy C.both involve magnetic energy D.both involve stored energy (I PICK B AND D) 3.the energy an object has due to its ...
Wednesday, January 22, 2014 at 8:46pm by Matt

science 8th grade
1. The thermal energy of an object is _____. (1 point) its potential energy its average kinetic energy its potential energy minus its kinetic energy its kinetic energy plus its potential energy Thanks, jessica :)
Tuesday, April 9, 2013 at 8:05pm by jessie

ap chemistry
a battery operated tool, such as a cordless drill, converts... a.) electrostatic energy to chemical potential energy b.) mechanical energy to thermal energy c.) thermal energy to mechanical energy d.) thermal energy to chemical potential energy e.) chemical potential energy to...
Friday, September 24, 2010 at 9:45pm by Sarah

science(answer please)
please answer these 1.what similarities do nuclear energy and chemical energy share?pick all that apply A.both are types of kinetic energy. B.both are types of potential energy C.both involve magnetic energy D.both involve stored energy 3.the energy an object has due to its ...
Wednesday, January 22, 2014 at 8:27pm by Matt

the big idea of energy
the big idea of energy is v. simple. all it means is there is a certain ammount of energy in the universe. you can`t create or destroy energy. it can only change forms, so kinetic/movement energy can be transformed into heat energy. there. nutshell.
Tuesday, December 5, 2006 at 2:18pm by Charlamagne

the big idea of energy
The Big Idea Of Energy Is The Limited Amount Of Energy We Have In The World Today, For Example There Is Energy Say Kinetic Energy And You Can Change That Into Hear Energy, Potential Energy Whatever. For The Iron And Sulphur Reaction That I Am Doing I Clearly Stated That The ...
Tuesday, December 5, 2006 at 2:18pm by S.xox

Physics
please check: Which of the following energy forms is associated with an object in motion? a. potential energy b. elastic potential energy c. nonmechanical energy d. kinetic energy i think its B Which of the following energy forms is associated with an object due to its ...
Monday, February 9, 2009 at 5:34pm by y912f

chemistry
Higher energy is equivalent to instability. Energy of a molecule refers to the energy that exists within its bonds. The higher the potential energy within the bonds, the more unstable the molecule. That is, molecules of high energy hope to lose the energy and retain stability ...
Wednesday, June 30, 2010 at 7:10pm by Anonymous

Physics
energy in f riction= mg*mu*.05m = 5.886 leftover energy= 1/2 m 1.5^2 = 1.35 So, If I add the leftover energy and the energy in friction I get the initial energy. Then what??
Wednesday, March 31, 2010 at 2:07pm by Holy Grail

the big idea of energy
The big idea of energy transfer is the idea of a source of energy being changed into another form of energy such as light energy to heat energy. This effect happens in global warming where chemical energy is transfered into heat energy with a greenhouse effect
Monday, January 10, 2011 at 2:10pm by Saz

Physics
Actually, I believe the answer is c - kinetic energy. Kinetic energy is energy that is in use, and as she rises, that is what is happening. It wouldn't be choice a because she is moving. (Potential energy is energy that has not yet been used.)
Wednesday, November 21, 2007 at 4:55pm by Michael

the big idea of energy
The big idea of energy transfer is the idea of a source of energy being changed into another form of energy such as light energy to heat energy. This effect happens in global warming were chemical energy is transfered into heat energy with a greenhouse effect. This effect also...
Tuesday, December 5, 2006 at 2:18pm by Nelly

Science
When energy changes forms, the total amount of energy is conserved. However, the amount of useful energy is almost always less than the total amount of energy. Explain the energy conversions and unwanted energy that might be produced by the hinges of a squeaky door.
Wednesday, January 5, 2011 at 6:57pm by Elijah

Geography
Geothermal energy is energy that comes from the earths inner heat. This type of energy is used in areas with volcanic activity; Iceland, Italy, Japan, and New Zealand all make use of geothermal energy. The last type of energy, solar energy, is energy produced by the sun. ...
Wednesday, August 26, 2009 at 6:04pm by mysterychicken

Env Science
Distinguish between high-quality energy and low-quality energy, and give an example of each. Relate these terms to energy efficiency High-quality energy is energy that can be converted to work, with a high conversion efficiency. Two examples are electrical energy and ...
Monday, July 9, 2007 at 11:01am by Kim

john tyler
Base on the law of conservation of energy, energy cannot be created nor destroyed. Knowing this, potential energy=kinetic energy. Find the potential energy. PE=mgh m=mass, g=gravity, h=height
Thursday, December 9, 2010 at 8:16pm by TutorCat

Physics
Which of the following is not an example of potential energy? a.)The energy stored in a pile driver b.)The energy stored in a stretched spring c.)The energy of a body moving across a horizontal surface d.)The energy in the water at the top of a waterfall
Friday, July 29, 2011 at 11:36pm by Tarissa

the big idea of energy
The big idea of energy transfer is the idea of a source of energy being changed into another form of energy such as light energy to heat energy.
Tuesday, December 5, 2006 at 2:18pm by Anonymous

the big idea of energy
The big idea of energy transfer is the idea of a source of energy being changed into another form of energy such as light energy to heat energy.
Tuesday, December 5, 2006 at 2:18pm by Anonymous

Physics
Total energy during the fall is constant. Thus loos of potential energy = gain in kinetic energy m g h = (1/2) m v^2 so v = sqrt (2 gh) Force * distance = energy Here the energy is m g h, the loss of potential energy during the fall.
Saturday, March 9, 2013 at 3:23am by Damon

Chem
Consider a system of three molecules A, B, and C. Suppose that three units of energy can be distributed over the three atoms. Each atom can have no energy, one unit of energy, two units of energy, or all three units of energy. Assume that each of the ten possible arrangements ...
Wednesday, November 3, 2010 at 1:14am by John

CHEMISTRY
Consider a system of three molecules A, B, and C. Suppose that three units of energy can be distributed over the three atoms. Each atom can have no energy, one unit of energy, two units of energy, or all three units of energy. Assume that each of the ten possible arrangements ...
Wednesday, November 3, 2010 at 9:58am by John

chem helpp!
Consider a system of three molecules A, B, and C. Suppose that three units of energy can be distributed over the three atoms. Each atom can have no energy, one unit of energy, two units of energy, or all three units of energy. Assume that each of the ten possible arrangements ...
Wednesday, November 3, 2010 at 4:33pm by John

math
kinetic energy is moving energy, or the energy possessed by an object in motion. potential energy is the the energy possessed by an object during rest. Similarity Think of a roller coaster. The chain pulls the rollercoaster full of people up the hill to the top. On the way up ...
Monday, January 9, 2012 at 9:32pm by Jordan

the big idea of energy
o.k ppl i get it look just copy and paste (sulfur&iron) The big idea of energy is that energy is never 'made' it simply changes from one form to another. During the sulphur and Iron experiment the energy transformed from heat energy from the bunsen burner to light energy (the ...
Tuesday, December 5, 2006 at 2:18pm by Melanie B. Demetri

the big idea of energy
o.k ppl i get it look just copy and paste (sulfur&iron) The big idea of energy is that energy is never 'made' it simply changes from one form to another. During the sulphur and Iron experiment the energy transformed from heat energy from the bunsen burner to light energy (the ...
Tuesday, December 5, 2006 at 2:18pm by Melanie B. Demetri

Science
where does this energy conversion occur? gravitional energy to kietic energy to electrical currernt. what i don't understand is what is gravitational energy?
Sunday, October 10, 2010 at 7:40pm by Izzy

Physics(work and energy)
You have done it well, the principle is conservation of energy: the energy at the top of the wall (PE+KE) is equal the the original energy.
Sunday, May 20, 2012 at 12:50pm by bobpursley

Science
Kinetic energy is the energy of motion and K.E. = 1/2 mv^2. Potential energy is the energy a system has as a result of its position (for example, a rock at the top of a ledge).
Monday, October 8, 2007 at 2:52pm by DrBob222

Physics
energy stored in spring= 1/2 k d^2 energy in f riction= mg*mu*.05m leftover energy= 1/2 m 1.5^2 well, initial energy=finalenergy+frictionwork solve for d
Wednesday, March 31, 2010 at 2:07pm by bobpursley

Science please
google it Thermal, or heat energy Chemical Energy Electrical Energy w w w . nmsea . o r g /Curriculum/ Primer/ forms _ of _ energy . htm
Tuesday, November 19, 2013 at 7:47pm by Sam

Muscular Energy
human beings and animals need energy to do work.they use the energy of their muscles to do different types of work.this is called muscular energy.they get energy from the food they eat. food is,therefore,the sources of energy for manual work.
Sunday, February 18, 2007 at 1:21pm by mahima

Science
Batteries change ____ energy into _____ energy Chemical and electric Converting the suns energy into electricity does not work if it is ____ time or there is ___ weather night and bad? The suns energy can be turned into electrical energy or ___ energy solar? A toaster ...
Wednesday, September 19, 2012 at 8:10pm by Lance

Integrated Physics and Chemistry
If the kinetic energy of a sample increases, the ____ will also increase. A)potential energy B)temperature C)chemical energy D)nuclear energy
Thursday, April 21, 2011 at 10:16am by Ashley!!

physics
Use energy: gravitational potential energy: GPE = mgh kinetic energy: KE = (1/2)m*v^2 By conservation of energy, GPEi+KEi = GPEf + KEf. (Final energy = initial energy). At the bottom of the hill, GPEf = 0 (h=0). At the top of the hill, KEi = 0(v=0). Find the final kinetic ...
Sunday, January 2, 2011 at 5:47pm by Marth

physics!-concervation of energy equations
wait...if this is conservation of energy, better to use: convert the potential energy into kinetic energy! (sorry). potential energy is mgh, and kinetic enery is (1/2)m*v^2
Thursday, December 4, 2008 at 9:33pm by DanH

the big idea of energy
Sooooooo Energy can't be destroyed it just changes state So the heat energy used on the iron and sulphur is then changed into chemical bonds, heat energy, light energy etc. The energy is still there but being used as chemical bonds to keeep the compound as a compound. The Big ...
Tuesday, December 5, 2006 at 2:18pm by Abi

science
It has kinetic energy when the CD is turning. Its potential energy depends upon its elevation. Asking "where" the energy is doesn't make a lot of sense. The kinetic energy is in any part that moves, and the potential energy is in all parts of the player.
Monday, May 11, 2009 at 12:13am by drwls

7th grade
Energy is the ability to do work. The two main types are kinetic energy (the energy of motion) and potential energy (stored energy). Anything moving (relative to you) has energy because it has kinetic energy. But things that are not moving (relative to you) can also have ...
Wednesday, April 15, 2009 at 7:05pm by RickP

Physics
it says to use conservation of energy we know conservation of energy when not dealing with heat is u+k=u+k where u is the potential energy and k is you kinetic energy. potential energy is mass x gravity x height. kinetic energy is (1/2)(mass)(velocity)^2. from there you get ...
Monday, November 15, 2010 at 11:57pm by jc

PHYSICS
percent efficiency: (final energy)/initial energy * 100 so I see about 1059/1130 * 100=93.7 percent Now, on a: demonstrate the law of conservation of energy: Does initial energy= final energy? not exactly, some mechanical energy was lost, probably to friction.
Sunday, January 31, 2010 at 11:28am by bobpursley

Science
Bobbie is playing with his radio-controlled car by using a handheld remote box. What type of energy is being used to power Bobbie's car? a)chemical energy b)electrical energy c)heat energy d)mechanical energy THANKS!!!!!
Thursday, April 12, 2012 at 8:40pm by Sally urgenttt

Science
Bobbie is playing with his radio-controlled car by using a handheld remote box. What type of energy is being used to power Bobbie's car? a)chemical energy b)electrical energy c)heat energy d)mechanical energy THANKS!!!!!
Thursday, April 12, 2012 at 8:58pm by Sally urgenttt

Science 8R - help (please read!!!)
Homework - Pick 4 out of the 6 forms (types) of energy and gives an example of each from your house. Types/Forms of Energy 1. Mechanical Energy 2. Electrical Energy 3. Electromagnetic Energy 4. Heat Energy 5. Chemical Energy 6. Nuclear Energy I'm picking heat and mechanical, ...
Monday, November 26, 2012 at 8:39pm by Laruen

chemistry
If I understand the question, the standard free energy, delta G^o, is the free energy of formation from the elements at 25 C. The free energy of a reaction is the free energy of the products minus the free energy of the reactants.
Sunday, March 1, 2009 at 10:32pm by DrBob222

Physics
what forms of energy are involved in the following situations? (choices: kinetic energy, potential energy - gravitational potential energy, elastic potential energy) a. a bicycle coasting along a level road b. heating water c. throwing a football d. winding the mainspring of a...
Sunday, January 25, 2009 at 2:32pm by PB and apples

Science
During the process of photosynthesis, plants convert carbon dioxide and water into glucose. Covalent bonds hold the glucose molecules together. The breaking of the covalent bonds during digestion releases energy. the type of energy released is A.nuclear energy B.kinetic energy...
Monday, February 3, 2014 at 4:04pm by hafsah

Chemistry
Consider a system of three molecules A, B, and C. Suppose that three units of energy can be distributed over the three atoms. Each atom can have no energy, one unit of energy, two units of energy, or all three units of energy. Assume that each of the ten possible arrangements ...
Tuesday, October 23, 2007 at 12:45am by Richard

science(check answers)
can someone check my answer thanks ! 2.The ability to do work or cause change is called A.velocity. B.energy.(I PICK B.) C.transfer. D.friction. 3.Which type of energy is demonstrated by a person jogging? A.electrical energy B.nuclear energy C.electromagnetic energy D.kinetic ...
Wednesday, March 5, 2014 at 1:13pm by matt

Science
Wil kinetic energy increase or decrease based on the amount of potential energy it starts with?? If potential energy is lost, KEnergy increases. Potential Energy + kinetic energy= constant.
Monday, February 5, 2007 at 7:52pm by Linda

biology
the first statement is true. there are reactions which require energy for activation and reaction proceeds with the evolution of energy. chemical bonds MIGHT NOT be always broken by energy absorption. the amount of energy depends on the nature of reactants. moreover there are ...
Thursday, April 15, 2010 at 11:40am by Uddeshya

Earth Science
1. Is it true that since energy cannot be created nor destroyed, the total energy of the river system remains constant? 2. What is the source of energy that powers the water cycle? a. sunlight insolation b. kinetic energy c. radioactive decay d. gravitational potential energy ...
Monday, November 24, 2008 at 1:08pm by John

science
Suppose you put your lunch up on a shelf. Name two kinds of energy it has, and explain why. I think it would have potential energy because it has stored energy being off the ground, but what other energy?
Sunday, January 13, 2013 at 12:39pm by maya

Science
What type of energy from the Sun do plants use to make their own food? A.Chemical Energy B.Sound Energy C.Light Energy D.Heat Energy C? An MP3 player uses the chemical energy in a battery to produce electricity energy. The electrical energy makes the player work.When turned on...
Monday, April 2, 2012 at 6:38pm by Rezu

physics-energy conservation
when you apply the brakes of a car its kinetic energy or energy of motion decreases. a)to what form of energy is the kinetic energy converted? b)where does the resulting energy end up? Do the brake drums on the wheels heat up? so does it convert into heat energy?and the ...
Tuesday, May 8, 2007 at 4:32am by Emma

physics
A)When the energy input to gas fired power station is 1000MJ,the electrical energy output is 300MJ.What is the efficiency of the power station in changing the energy in gas into electrical energy b)what form does the 700MJ of lost energy take c)what is the fate of the lost energy
Wednesday, August 3, 2011 at 4:58am by Luc

science(check answers)
2.how would the kinetic energy of a 12,000-kg train compare with the kinectic energy of a 900-kg compact car if both were traveling at the same speed? A.the trains kinectic energy would be equal to the cars kinectic energy. B.the trains kinectic energy would be greater than ...
Wednesday, January 29, 2014 at 12:37pm by annabelle

Physics-energy
work done = force * distance F = m a Change in potential energy = - m g (.52*10^3) sin 13.5 Change in kinetic energy = - (1/2) m (88-34)^2 (10^3 m/km/3600s/hr)^2 thermal energy + change in potential energy + change in kinetic energy = 0
Tuesday, February 16, 2010 at 6:36pm by Damon

Physics
Subtract the particle energy at 0.905c from the (higher) energy at 0.980c. They have already told you the v's. When you divide by c in the Lorentz-factor, you will get v/c values of 0.980 and 0.905. The energy at speeed v is m c^2 / sqrt[1 - (v/c)^2] That includes the rest-...
Friday, April 3, 2009 at 10:57pm by drwls

Chemistry 2
I just wanted to compare my answer with the answer that i will be getting.. This is what I have: Exothermic reaction starts at a higher energy value and ends at a lower energy value. In an exothermic reaction, we know that energy is given off in the form of heat. This energy ...
Monday, March 31, 2014 at 3:44pm by Helen

Physics kinetic energy
Okay the equation for kinetic energy is = 1/2mv^2 so how would i figure this out?? If a semi-truck decreases its speed from 10 m/s to 5 m/s, its new Kinetic Energy is: a)4 times its old Kinetic Energy b)2 times its old Kinetic Energy c)1/2 its old Kinetic Energy d)1/4 its old ...
Saturday, October 30, 2010 at 2:17am by Aisumi

Science
A spherical rock rests at the top of a steep hill. the rock has A)Potential Energy B) Chemical energy C)Kinetic energy or D) no energy i think it's A or B but I'm not sure. thanks
Friday, October 14, 2011 at 12:54pm by Jon

Science please
Kinetic energy and Potential energy are often considered to be forms of mechanical energy. List three other forms of energy and state a source for each.
Tuesday, November 19, 2013 at 7:47pm by anon

Chemistry
Can someone explain in easier terms the spontaneous process, entropy, and free energy. The textbook is hard to understand. Just a simple explanation. Thanks. Appreciate it! Free energy is the amount of energy that can be released in a chemical reaction. If free energy is ...
Thursday, February 8, 2007 at 6:38pm by Maria

Probability
Consider a system of three molecules A, B, and C. Suppose that three units of energy can be distributed over the three atoms. Each atom can have no energy, one unit of energy, two units of energy, or all three units of energy. Assume that each of the ten possible arrangements ...
Monday, October 22, 2007 at 10:58pm by Richard

physics
A. A particle is traveling without friction up and down hills and valleys. If its initial potential energy is 6 J and its initial kinetic energy is 78 J, what is its total energy, E? E: J B. If at a later point its potential energy is -14 J, what is its kinetic energy K at ...
Saturday, October 12, 2013 at 11:12pm by carol

science
Assuming the car has no kinetic energy at the top... energy at the bottom = energy at the top energy at the bottom = kinetic energy kinetic energy = (1/2) * m * (v^2) So, (1/2)*m*(v^2)=20,000J Solve for v
Tuesday, October 9, 2007 at 11:51pm by Quidditch

Conservation of energy
Can someone explain to me what happens when you take a slap shot in hockey according to conservation of energy? I think that when you wind up you have potential energy, then when you swing the stick towards the puck you have kinetic energy, then when the stick flexes you have ...
Monday, June 13, 2011 at 8:11pm by Kyle

Physics
this case the energy of sistem is conservation of energy: (1/2)kx = (1/2)mv then you can find the energy of springs, this energy would be the energy of total sistem because no exist friccion. the maximum velocity of the mass v= square root((kx)/ m) the speed when it has ...
Saturday, June 2, 2012 at 12:07am by Delbarre

physics
when something is dropped, its potential energy is turned into kinetic energy. as the object stops [as if it is bouncing back up and starting to slow to fall back down] kinetic energy decreases and becomes potential energy again. the energy of a system is the total kinetic ...
Sunday, May 2, 2010 at 9:44pm by Kake

physics
not quite any energy lost to friction or air resistance would prevent it from having enough energy to make it back to the same height (unless it started with a big push) If not moving at start, total energy = potential energy = m g h if any energy is lost during the trip, it ...
Sunday, January 29, 2012 at 7:15pm by Damon

physics30
potential energy = m g h = 56*9.81 * 3.5 kinetic energy = (1/2) m v^2 = 28*16 sum to get total energy at top kinetic energy at bottom = (1/2)m v^2 = total energy at top - 900
Monday, March 10, 2014 at 2:24am by Damon

College Chem.
isn't Planck's equation working? Energy= plancksconstant*speedlight/wavelength You will have to get energy per electron, or energy= 1.76E3*1E3avagradros number to get energy in joules/electron
Wednesday, September 1, 2010 at 12:32pm by bobpursley

Physics
The initial potential energy of the watermelon is mass*acceleration*height or mgh for Earth. For practical purposes assume that total energy of the watermelon is constant. So the potential energy + the kinetic energy is constant. The kinetic energy is given at the point of ...
Monday, January 28, 2008 at 5:53pm by Quidditch

11th grade
Set potential energy equal to potential energy. i.e. mgh = (1/2)mv^2 where m=mass, g=gravity or 9.8m/s^2, h=height, v=velocity In the beginning, the diver has potential energy (since the person is raised at a certain distance above ground level). As the diver falls, this ...
Sunday, October 17, 2010 at 11:51pm by TutorCat

physics
electricl energy is turned into light energy in a light bulb. electrical energy is turned into sound energy by speakers a nuclear reactor turns nuclear energy into electrical energy. What you could do is set up a 10x10 grid of the types of energy and try to come up with a ...
Sunday, December 19, 2010 at 8:02am by Dr Russ

Physics
Mechanical energy is the sum of (gravitational) potential energy and kinetic energy. If there is no friction, the mechanical energy is constant.
Tuesday, December 14, 2010 at 10:38pm by drwls

chemistry
an electron jumps from energy level to energy level two by absorbing a photon of energy 8eV. What is the most likely energy of the photon that will be emitted by the electron when it moves back down to energy level one
Tuesday, June 12, 2012 at 12:54pm by rona

science
please help me im stuck on this last one !! .A car driver accelerates to a speed of 35 mph and then takes her foot of the gas pedal.Even though she does not press the brake pedal at any time,she eventually rolls to a stop.which of the following most likely causes the car to ...
Tuesday, February 4, 2014 at 3:29pm by taylor

Science
The Lactic Acid System a. supplies energy needed to walk or cycle continuously b. provides energy to pitch a baseball c. creates energy needed to pass another 5k participant with a burst on energy. d. none of these
Thursday, April 2, 2009 at 8:35pm by Betty

English
Please help write a reaction on this Article, I want to give good presentation. How can I make it interesting? Thank you! So, far I think the Author is Energy literate and motivates readers through his words. Please tell me how I can include "Energy conversion, Energy ...
Wednesday, February 15, 2012 at 11:27pm by Leah

Physics pls anyone can help me? its urgent
Simple. What is the Potential energy of each charge? Well, PE is a scalar, so the distances are the same to each charge, so energy=k(q1Q2/r+Q1Q3/r+Q1Q4/r+Q2Q3/r+Q2Q4/r+Q3Q4/r)= 6k if all q are 1, all r is 1. Now consider putting the thing together. first charge, no energy ...
Friday, November 8, 2013 at 6:40pm by bobpursley

chemistry
The momentum of the electron is h /(wavelength) h is Planck's constant. Use that to compute the electron energy. Add the electron energy to the ionization energy (13.6 eV) for the photon energy.
Friday, January 11, 2013 at 1:22pm by drwls

Genereal Physics I
Ok, I figured it out. I find the potential energy, and subtract the potential energy from the total energy which was given in the problem. With that kinetic energy now I solve for V using kinetic energy equation. From there I'm able to find the Power with F*V. One of the ...
Wednesday, October 13, 2010 at 5:27pm by VitaX

physics-energy conservation
some people refer to heat as "low grade energy. a)how is low grade energy different from high grade energy? b)give two example of high grade energy When heating a cup of tea, which would be preferable...a stove with a burner on top, or a heating pad? High grade energy is ...
Tuesday, May 8, 2007 at 4:41am by Emma

Physics
Energy= boltzmanns constant*speedlight/wavelength Energy= inonization energy wavelength= incoming light solve for wavelength. Remember: MEMORIZE Planck's equation energy= boltzmannconstant*frequency
Thursday, April 22, 2010 at 10:20am by bobpursley

chemistry
Your post is incomplete. You omitted the energy level from which the electron started. I assume, however, that if it absorbed energy and moved to energy level two it MUST have started at energy level 1. If that is true and it moved to level 2, the most likely transition is ...
Tuesday, June 12, 2012 at 12:54pm by DrBob222

Physics
SpringcompressedEnergy + initialPE =KE final 1/2 k s^2+mgh=1/2 m v^2 This v is the velocity at the floor when it hits. h is the intial height of the ball (table). h is 1.20, not 1.35 as I indicated. v=sqrt(2gh+ks^2/m) The above is just sayingthe intial energy has to equal the ...
Friday, November 7, 2008 at 11:58pm by bobpursley

Muscular Energy
Muscular energy is the energy found in animals. Food is transformed into this energy.
Sunday, February 18, 2007 at 1:21pm by Rosila

Chemistry
i.e. is energy absorption a result of breaking bonds, or is energy absorbed in order to break bonds? So like... Energy is required to break bonds. Energy is somehow obtained, the bonds break... and this results in the absorption of *different* energy (which is unrelated to the...
Sunday, February 17, 2013 at 4:30pm by a Canadian

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