Wednesday
September 17, 2014

Search: Physics I'm so Lost!!

Number of results: 58,582

Physics
For non-ideal oscillators (such as a real pendulum) energy is lost and the amplitude (which is the maximum displacement) is no longer constant but also decreases with time. How fast the energy lost is described by a TIME CONSTANT, τ = m/b. Typically after ONE time ...
January 31, 2014 by Ike

Lost in Physics
The strength of an electric field at 5.0 cm from a point charge is 100.0 N/C. What is the magnitude of the source charge? Show work so I understand how to do it. E=kQ/r^2 solve for Q, you have r, E What do I do NOW? I am lost
May 19, 2012 by Pat

math
On each of four consecutive plays in a football game, a team lost 11 yd. If lost yardage is interpreted as a negative integer, write the information as a product of integers and determine the total number of yards lost.
March 16, 2010 by kirk

pre-algebra
A football team gained 4 yd, lost 2 yd, gained 11yd, lost 8 yd, and then lost 9 yd. Find the net gain or loss.
September 16, 2012 by emily

Chemistry
Is heat lost in heating water and ice? No. Entropy is lost, but heat energy is not lost.
December 3, 2006 by Lisa

English
How would you paraphrase this aphorism? A little neglect may breed mischief,for want of a nail the shoe was lost,for want of a shoe the horse was losted,for want of a horse the rider was lost, for want of the rider the battle was lost.
September 23, 2007 by jen

Math
In 2000 17 million workdays were lost due to strikes and labor disputes. In 2001 there were only 1 1/5 million days lost. How many more workdays were lost in 2000? 15 4/5?
October 30, 2012 by Jerald

statistics
Lost Luggage in Airlines Transportation officials reported that 8.25 out of every 1000 airline passengers lost luggage during their travels last year. If we randomly select 400 airline passengers, what is the probability that 5 lost some luggage?
March 31, 2012 by lela

algebra
I am lost on solving this problem 3x+8=8x-5x+10 I know the next step is 3x+8=3x+10 I am lost after that
March 24, 2010 by nala

English/ Help
Which of the following sentences is an example of second person narrative voice? A. You became lost in a labyrinth of lies and deceptions. B. It was a labyrinth of lies and deceptions in which she was lost. C. He was lost in a labyrinth of lies and deceptions. D. I became lost...
August 4, 2014 by Dulce

Physics-Totally lost
I'm totally lost on this one- the earth is surrounded by an electric field with a strenth of 100 N/C at the surface. Its electric properties are the same as a point charge located at its center. How would the gravatational force and electrical force compare foor an electron at...
April 7, 2011 by Rafaela

Algebra
the problem is to graph 3x - y < 2 x + y > 2 my solution is y = 3x - 2, y = -1x + 2 I,m lost at where my lines ar drawn. In y = 3x - 2 (y line is 3) and y = -1x +2 (y line is -1) or am I totaly lost. After continued effort I beleive 1st equation m = 3 and y-intercept is...
May 27, 2007 by Sissy

Written Communication
What kinds of unwanted reactions might you get from readers of your messages? What steps would you take to ensure that the purpose of your message (whether informative, negative, or persuasive) is conveyed to your readers? It's extremely important to express yourself clearly ...
April 21, 2007 by Frankie

English/grammar
Semicolon. 2a. The Bears lost the Super Bowl to Indianapolis; worse yet, I lost a bet with my brother about the outcome of the game. 2b. The Bears lost the Superbowl to Indianapolia; worse yet; I lost a bet with my brother about the outcome of the game. Which is correct for ...
November 30, 2008 by Dorothy

maths
At a fun fair, each mother there had brought 2 children. At the end of the day, it was found that 36 mothers had lost one or both of their children and 62 children had lost their mothers. How many mothers lost only one of their children and how many mothers lost both of their ...
September 2, 2013 by coran

physics
A 1 kg mass moving to the right at a speed of 10m/s collides head-on in a perfectly inelastic collision with a stationary 2kg mass. How much KE is lost during the collision? First I found V_f to be 3.3m/s then I found KE_i=1/2m_1v_1i^2 +1/2 m2V_2i^2 =1/2(1)(10)^2 +1/2(2)(0)^2...
October 24, 2007 by Tammy

Biomass increase !
Can anyone help please, Can anyone help me to calculate the increase in biomass in each of the three groups, Field mice Ingested 107Kj m-2 y-1 and lost 105 kj m-2 y-1 in respiration & faeces Grasshoppers ingested 444 kj and lost 374.3 kj and small birds ate seeds 60 kj and ...
December 30, 2006 by Freddo

Math
Jared's football team lost a total of 12 yards during 4 plays of the game. They lost the same number of yards during each of the plays. What is an integer that can represent the number of yards lost during each play?
March 11, 2014 by Carl

Statistics
How do I plug this into the Binomial Probability Formula? prob(lost) = 5/1000 = 1/200 prob(not lost) = 199/200 prob( 2 of 22 are lost) = C(22,2) (1/200)^2 (199/200)^20 = .005224..
March 9, 2014 by Brenda

MATH
7. Tina lost 3 pounds on the first week of her diet. She gained a pound on the second week, and then lost 2 pounds a week during every week afterwards. She has been dieting for a total of 13 weeks. How many pounds has Tina lost in all? A. 26 pounds B. 24 pounds C. 22 pounds D...
May 15, 2013 by lola

Physics-Please help!
I don't want someone to do this for me-I'm just totally lost and don't even know where to start-I'm totally lost on this one- the earth is surrounded by an electric field with a strenth of 100 N/C at the surface. Its electric properties are the same as a point charge located ...
April 7, 2011 by Rafaela

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
August 3, 2011 by Luc

math
Jose was playing a game with marbles.In the first round ,he lost 1/4 of his marbles.In the Second round,he lost 1/3 of his remaining marbles.In the third round,he lost 1/2 of his remaining marbles.He gave 1 marbles to his friend shavana.He had 1 marble left. How many marbles ...
March 3, 2012 by Adi

equation
n represent the number of games lost, write an equation for: a) A team won three times as many games as it lost. It played a total of 52 years. b) A team won 20 games more than it lost. It played a total of 84 games. c) A team won 15 games less than twice the number lost. It ...
January 18, 2008 by jen

science
Which statement best compares an atom to an ion? A.An ion is an atom that has lost its charge. B.An ion is an atom that has gained or lost protons. C.An ion is an atom that has gained or lost electrons. D.An ion is an atom that has a different number of neutrons.
January 24, 2014 by victoria

english
I am looking for the correct sentence use of the Semicolon 20a. The Bears lost the Super Bowl to Indianapolis; worse yet, I lost a bet with my brother about the outcome of the game. 20b. The Bears lost the Super Bowl to Indianapolis; worse yet; I lost a bet with my brother ...
October 20, 2009 by Leesa

Physics
A 79.0-kg fullback running east with a speed of 4.00 m/s is tackled by a 93.0-kg opponent running north with a speed of 3.00 m/s. (a) Why does the tackle constitute a perfectly inelastic collision? (b) Calculate the velocity of the players immediately after the tackle. ...
October 4, 2011 by Allie

English
1. I lost the ring that he gave me. 2. I lost the ring that he had given me. (Which one is correct? Are both OK?)
April 12, 2012 by rfvv

physics
A generating station is producing 1.3*10^6 W of power that is to be sent to a small town located 7.0 km away. Each of the two wires that comprise the transmission line has a resistance per kilometer of length of 5.0*10^-2 /km. (a) Find the power lost in heating the wires if ...
February 20, 2008 by rick

physics
A generating station is producing 1.2 x 106 W of power that is to be sent to a small town located 4.2 km away. Each of the two wires that comprise the transmission line has a resistance per length of 5.0 x 10-2/km. (a) Find the power lost in heating the wires if the power is ...
October 20, 2011 by shaknocka lewis

Math
Tina lost 3 pounds on the first week of her diet. She gained a pound on the second week, and then lost 2 pounds a week during every week afterwards. She has been dieting for a total of 13 weeks. How many pounds has Tina lost in all? A. 22 pounds B. 24 pounds C. 20 pounds D. 26...
October 29, 2013 by Cassie

science
can energy be lost or does it transfer somewhere else? I thought energy can be lost but i'm just checking.
May 30, 2011 by Anonymous

Physics
A 70.0 kg base runner begins his slide into second base while moving at a speed of 4.0 m/s. The coefficient of friction between his clothes and Earth is .70. He slides so that his speed is zero just as he reaches the base. How much mechanical energy is lost due to friction ...
December 5, 2006 by Becca

Chemisty
Im totally lost on how to do redox reactions. Can any one show me the steps on how to do MnO4-1 +C7H60 => Mn2 +c7H6O2? im trying to study for a test and im totally lost. thanks in advanced.
May 31, 2010 by Kelly

Physics (PLEASE HELP)
A generating station is producing 2.00 106 W of power that is to be sent to a small town located 7.0 km away. Each of the two wires that comprise the transmission line has a resistance per kilometer of length of 5.00 10-2 /km. (a) Find the power lost in heating the wires if ...
February 12, 2012 by DCM

spanish
assignment Escribe las frases en espanol. 1. We forgot the homework. ( literalmente: "The homeowrk was forgotten "on us") _____________________ 2. You lost money. ( the money was lost "on you") ______________________ I AM VERY CONFUSED
November 1, 2008 by sam

spanish
assignment Escribe las frases en espanol. 1. We forgot the homework. ( literalmente: "The homeowrk was forgotten "on us") _____________________ 2. You lost money. ( the money was lost "on you") ______________________ I AM VERY CONFUSED
November 1, 2008 by sam

history
How were the various countries of the world affected economically by WWII? Who came out ahead? Which countries suffered monetarily? Who lost their empires? Who lost the most in human capital?
November 6, 2008 by Candy

Physics (DUE SOON)
A generating station is producing 2.00 106 W of power that is to be sent to a small town located 7.0 km away. Each of the two wires that comprise the transmission line has a resistance per kilometer of length of 5.00 10-2 /km. (a) Find the power lost in heating the wires if ...
February 13, 2012 by DCM

Physics URGENT!!!
A 75.0 kg fullback running east with a speed of 6.00 m/s is tackled by a 82.0 kg opponent running north with a speed of 5.00 m/s. (a) Calculate the velocity of the players immediately after the tackle. (b)Calculate the direction of the players immediately after the tackle.(c)...
October 17, 2012 by Megan

physic
In a house the temperature at the surface of a window is 25 ˇăC. The temperature outside at the window surface is 5.0 ˇăC. Heat is lost through the window via conduction, and the heat lost per second has a certain value. The temperature outside begins to fall, while the ...
March 31, 2010 by firous

physics/science
If a pendulum is not pushed, why does it not go as big when it swings back. Where does the lost PE go? ans. Since there is no force applied to the pendulum there is not enough Kinetic energy (energy of motion) to transform into potential energy to make it swing back. The ...
February 9, 2014 by CC

Bus
Guaranteed replacement cost in a homeowner’s insurance policy means that the insurance company A. guarantees they’ll replace the lost items for you. B. guarantees they’ll pay the current value of items lost. C. will pay you what it costs to replace the items new. D. will pay ...
March 19, 2014 by Pirurris

Health Physics
When work is done by friction, in what form in energy "lost"?
January 22, 2010 by Shannon

math
Customers lose their bags 8% of the time at airports. 20 random people were watched to see if their bags were lost. Whats the probability that at least 18 of them lost their bags?
December 14, 2010 by Carly

science/physics
If a pendulum is not pushed, why does it not go as big when it swings back. Where does the lost PE go? ans. Since there is no force applied to the pendulum there is not enough Kinetic energy (energy of motion) to transform into potential energy to make it swing back. The ...
February 9, 2014 by CC

Statistics
Given the following information, determine the 68.3 percent, 95.5 percent, and 99.7 percent confidence intervals. overbar above X equals 4.33 comma SE sub m equals 3 I've looked at the table as recommended. I just do not understand this at all. I'm really lost on this and ...
December 5, 2013 by Anonymous Do not understand

physics
Is it possible for a collision to occur in which all of the kinetic energy is lost?
November 8, 2007 by Anonymous

physics
if the initial velocity is .05 m/s and its final is 1.3 m/s then how much energy is lost to friction
March 23, 2011 by bill

Physics
How much mechanical energy was lost during the ball's fall?
May 20, 2013 by seth

statistics
approximately 300 millions golf balls were lost in the united states in 2009 assume the number of gold balls lost in an 18 hole is distributed as a poisson random variable with a mean of 5 balls
February 23, 2013 by Anonymous

algebra
Tony went to the racetrack with $80. He won $15 on the 1st race, lost $12 on the 2nd, lost $6 on the 3rd and won $8 on the 4th. How much money did he have after the 4th race.
August 28, 2012 by robin

Physics
A basketball of mass 0.70 kg is dropped from rest from a height of 1.22 m. It rebounds to a height of 0.64 m. How much mechanical energy was lost during the collision with the floor? A basketball player dribbles the ball from a height of 1.22 m by exerting a constant downward ...
November 27, 2012 by Physics

Health Physics
The human body is 20-25 percent efficient. In what form is energy lost?
January 22, 2010 by Shannon

Physics
How much heat is gained or lost when 200 grams of ice melts?
October 28, 2010 by John

Math
Losing your bags during airline travel is not all that uncommon. Recently, an airline was sited for losing customers' baggage 8% of the time. A test is conducted by randomly selecting 14 customers for that airline and observing whether they had lost their baggage. Provide ...
December 8, 2010 by Courtney

English
1. Korea lost at the soccer game by 1:2. 2. Korea lost in the scooer game by 1:2. (Which preposition do we have to use? Are both right?)
June 7, 2009 by John

Math
A hockey team played 12 games. They won 2 more than they lost. They lost 1 more than they tied. How many games did they win, lose, and tie?
August 29, 2011 by Byran

CHEM 1A
Can someone please help me..... I have limited reactant formula problem. I am completely lost. 2Ca(s) + O2(g) ----> 2CaO(s) Calculate the mass of Calcium Oxide that can be prepared from 6.87g of Ca and 4.58g of O2. I calculated 2Ca to .171mol and O2 to .286mol, I am lost ...
September 6, 2014 by Chad

college algebra
find the equation of the line in slope inntercept form. (-1,1) and (-2,1) I know that I have to use m=y^2-y^1/x^2-x^1 which is slope form then I get: m=1-(1)/-2-10 which I substitue m= ? is where I get lost but then I know the next part is: y=mx+b then I am lost from here on ...
October 28, 2012 by ladybug

6th grade, science
Think about the energy you use every day (running, eating, ...) Where have you seen heat energy being lost? Activity.... Heat lost through
October 6, 2010 by Victor

reading
ok so im lost in my essay i don't know what to do i can't find one that i like i cahnged my subtopic to how the maycomb disease influenced the arrest, testimony, and verdict in Tom Robinsons trial. but when it comes to writing the body paragraph im lost becuase i don't know ...
March 23, 2014 by Reina B.

English
1. Only after he had lost his health did he realize the importance of it. 2. Only after he had lost his health, did he realize the importance of it. 3. Only after he had lost his health, he realized the importance of it. 4. Only after he had lost his health he realized the ...
November 21, 2013 by rfvv

Math.
1. At 4:00 A.M. the outside temperature was -28. By 4:00 P.M. it rose 38 degrees. What was the temperature at 4:00 P.M.? 10 2.Three friends decided to exercise together four times a week to lose fat and increase muscle mass. While all three were healthier after six weeks, one ...
September 9, 2013 by Jerald

Physics
A rubber ball, with a mass of 40.0 grams is dropped from rest from a height of 1.60 m above the floor. It hits the floor, and then reaches a maximum height of 90.0 cm when it comes back up again. In this problem, use g = 10.0 m/s2. a) The collision with the floor causes some ...
October 27, 2013 by Yasmina

physics
if 20g of steam at 100 c is mixed into 80 g of water at 20 c what is the final temperature if no heat lost
April 27, 2014 by sara

Math 156
A share of stock sold for $50 on Monday. On Tuesday it lost 5% of its Monday’s value. On Wednesday it lost 10% of its Tuesday’s value. On Thursday it lost 5% of its Wednesday’s value. What percent increase would the share of stock have to have on Friday to achieve its Monday’s...
September 18, 2010 by Ida T.

math
The Bobcats football team gained seven yards,lost eight yards and than lost seven more yards.what is the net result of these three plays
September 2, 2014 by treva

GEOGRAPHY
Loss of nutrients- when the trees are removed,the nutrients within them are lost. i need to explain this in my own words.does it mean when the trees are cut down all the nutrients are lost from the tree roots
January 3, 2009 by KELLIE

University of Rhode Island
A soccer team played 18 games during the season. They won 12 games, lost 4 games and tied 2 games. What is the ratio of games won to games lost
June 1, 2012 by Phillip Sullivan

statistics
A researcher was interested in assessing the effectiveness of the Statistics Diet as compared to a regular low calorie diet on weight loss. In the study, obese participants were randomly assigned to one of two groups: (1) the Statistics Diet, which required participants to ...
May 2, 2014 by Matt

physics
Calculate the energy released in the fusion reaction 2 3 4 1 1 H + 1 H->2 H +0 n. The atomic mass of 3 1 H (tritium is 3.016049 u. I am lost! help please!
May 5, 2008 by J

physics
a waterfall is 122 m in height. calculate the rise in temperature if all potential lost is converted to heat.
September 12, 2011 by mini

math! please help
Land growing continuous grain corn as a cash crop loses soil at a rate of 14.0 metric tonnes ha-1 yr-1. This is a fertile soil, which has an organic matter content of 3.8% and nitrogen content of 0.35% (both by mass). a) we did this question before, lost soil=soil mass 14000kg...
November 12, 2009 by Ramya

Statitics
A Department of Transportation report about air travel that 5 out of every 1000 pieces of luggage are lost by the airlines. You are traveling with a group of people who have 22 pieces of luggage. What is the probability that 2 of these are lost? Set up the equation and plug in...
March 8, 2014 by Brenda

Algebra
After three plays in which a football team lost 7 yd,gained 3 yd and lost 1 yd, respectively, the ball was placed on the teams own 30 yd line. Where was the ball before the three plays?
September 6, 2011 by Debbie

LA
2.what is the description of the theme of article lottery winners who lost their millions? A: many lottery winners have lost their money. B:money is the key to the American dream. C: sudden wealth can cause problems.
May 16, 2013 by bob

Biology
Prokaryotes produce 38 ATP per glucose molecule and eukaryotes produce 36 ATP why? I know that the two are lost, but I am not sure if it is in the processing of the sugars or the transport? Does anyone know where these two are lost or why?
March 25, 2008 by Vijay

Math
jared's football team lost a total of 12 yards during 4 plays of the game. They lost the same number of yards during each of the plays. What is an integer to represent it?
March 11, 2014 by Ashley

physics
D=m/V=m/đ•R^2•h Find the density of a 4.2- kg solid cylinder that is 13 cm tall with a radius of 5.0 cm. I am lost on the numbers to plug into this one please help
March 24, 2012 by jim

Physics
After undergoing through 90 degree compton scattering, the fraction of energy lost by photon is A) 10 % B) 50 % C) 20 % D) Zero E) None
June 1, 2014 by Fayzan Ahmed

Physics
A man was lost in the woods. He wanders 3 km north, then 7 km east, then 7 km south, then 4 km west. What is the magnitude and direction of his resultant displacement?
June 12, 2014 by Van

ALG@ NEED HELP PLEASE
Explain how to factor the following trinomials forms: x2 + bx + c and ax2 + bx + c. I am totally lost still I read and read and the concept is lost in my head. Can someone please help me? I know there is more than one way to Factor this.
March 1, 2012 by KAYG

statistics
transportation officials reported that 8.25 out every 1000 airline passengers lost luggage during their travels last year.if we randomly select 400 airline passengers,what is the probability that 5 lost some luggage?
March 31, 2012 by lela

physics ap
Sir Lost-a-Lot dons his armor and bursts out of the castle on his trusty steed Tripper in his quest to rescue fair damsels from drag- ons. Unfortunately his valiant aide Doubtless lowered the drawbridge too far and finally stopped it 30 below the horizontal. Lost- a-Lot ...
November 17, 2012 by helpplz

Physics- LOST!
If the air temperature is the same as the temperature of your skin (about 30.0 C), your body cannot get rid of heat by transferring it to the air. In that case, it gets rid of the heat by evaporating water (sweat). During bicycling, a typical 70.0 kg person's body produces ...
December 3, 2007 by Jamie

physics
jack measured that his racquet gives a squash ball 45.0J of kinetic energy when he hits it with a particilar shot.he also measures that it has 18.0J of kinetic energy after one bounce off the court wall. what percentage of its mechanical energy does the ball lose while it ...
May 8, 2007 by Emma

Physics
A sample of charcoal from an archaeological site contains 55 g of carbon and decays at a rate of .877 Bq. How old is it? ok I am totally lost, I don't know where to start
May 5, 2008 by J

physics
A sample of charcoal from an archaeological site contains 55 g of carbon and decays at a rate of .877 Bq. How old is it? ok I am totally lost, I don't know where to start
May 5, 2008 by J

Physics
The displacement, force, velocity, and acceleration vectors’ components are given. Calculate the magnitude and direction of each vector. (a) x = +15.0 cm, y = -12.3 cm. I am completely lost.
June 4, 2014 by Grant

chemistry
What molar ratio of acetic acid to sodium acetate is required to create a buffer solution at a pH of 4.89 at 25 degree C? Ka for acetic acid is 1.8 X 10-5 A. 2.9 B.0.56 C.1.4 D.0.72 E.0.2 ( I chose this and got is wrong) I'm lost on how to do these problems, but I started out...
March 7, 2013 by Glen

ALGEBRA
A golf ball is tossed straight down out of an airplane. The downward velocity of the ball at various times is given in the table below. SEC AFTER THROW DW VELOSCITY X m/s Y 1 21.8 1.6 27.68 2 31.6 2.2 33.56 What is the slope of the line that firs this data? Is it 7.8 8.8 9.8 ...
April 25, 2011 by mary

heat/science
how is heat lost heat flows from a hot surface to a colder surface. Heat may be lost by conduction, convection, or radiation.
January 3, 2007 by kp

statistics
A researcher was interested in assessing the effectiveness of the Statistics Diet as compared to a regular low calorie diet on weight loss. In the study, obese participants were randomly assigned to one of two groups: (1) the Statistics Diet, which required participants to ...
May 3, 2014 by Matt

statistics
A researcher was interested in assessing the effectiveness of the Statistics Diet as compared to a regular low calorie diet on weight loss. In the study, obese participants were randomly assigned to one of two groups: (1) the Statistics Diet, which required participants to ...
May 4, 2014 by Matt

physics
A 17.0 kg child travels down a playground slide 3.50 m high and reaches the bottom with a speed of 2.50 m/s. How much heat was generated due to friction as a result of this process? my teacher hadn't taught anything about heat..but he did give us this question, thus, i got no ...
February 23, 2007 by Cathy

math
Land growing continuous grain corn as a cash crop loses soil at a rate of 14.0 metric tonnes ha-1 yr-1. This is a fertile soil, which has an organic matter content of 3.8% and nitrogen content of 0.35% (both by mass). a) we did this question before, lost soil=soil mass 14000kg...
November 12, 2009 by Ramya HELP!

math
the question is a stock gained 2 7/8 points, lost 1 3/4 points and then gained 1/2 point and then lost 5 points. What was the total change in the stock price? I got a loss of = -3 3/8 is this correct
October 14, 2012 by b6

physics
whaat happens to the potential energy lost by hammer of pile driver when it falls through a distance and drives a piling into the ground?
February 7, 2013 by andy

AP Physics
can you please explain this to me... Were given this eqaution x = At^2 + B were A = 2.10 m/s^2 B = 2.80 m ok and this is an example problem and it's wlking us through it find the instantaneous velocity at t=t2=5.00s equlas the slope of the tangent to the curve at point P2 ...
June 13, 2009 by AP Physics

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