# physics( i have no idea how to go about gettign th

7,478 results, page 46-
## English III (advice)

My Assignment: Write a reflective essay in which you explore a personal experience or an event and reflect on its deeper meaning. I'm between a rock and a hard place with trying to find the perfect topic for this. I know you don't know anything about -
## chemistry

How many grams silver (Ag) is added to 13 grams gold to produce 85% gold (Au) alloy? Can someone please give me the derived formula to be used? I had managed to solve it though I'm not quite sure if it's correct. i got 73.67g Ag, can someone please correct -
## anatomy

what evidence can i get that supports the idea that bones are living, active structure rather than dead objects. http://en.wikipedia.org/wiki/Bone when there scroll to bone cells question bones are living, active structures rather than dead objects. -
## Chemistry

I have to do a lab on equilibrium, where you have to transfer water with two different sized straws, and answer questions based on that the questions are about the significance of where there is a flat line on the graph, and the significance of the point -
## math help please !!!

i really neeed help, i have no idea how to answer this question ! i tried everything i know! A stone is thrown off a cliff. it reaches a maximum height of 30m after 2 seconds, then falls into the water below. it hits the water after 5 seconds a) how high -
## chemistry

I have to do a lab on equilibrium, where you have to transfer water with two different sized straws, and answer questions based on that the questions are about the significance of where there is a flat line on the graph, and the significance of the point -
## english

Please help me with my thesis. i have to write a thesis statement in the topic topic "Poverty in USA". like i had lots but my teacher didn't agree with those. can anyone please give me idea what to write. by starting the sentence with " Poverty in USA -
## physics.. important stuff !

i still do not understand?? can someone please help me out??? (a) why is the centripetal force neede to keep a body moving in a circular path? (b) In what direction does a centripetal force accelerate the body on whic it acts?? (c) Upon what threee factors -
## Biology

28. Natural selection causes a. changes in the environment b. plants and animals to produce more offpsring than can survive c. changes in the frequency of certain favorable characteristics in a population d. all of the above D? 30. When Darwin published -
## Chemistry

Sorry for posting this again, I don't know if the question was skipped or not, but I was just wondering if I could get some help on this... thanks. There are 3 known isotopes of Hydrogen and 3 stable isotopes of oxygen. How many types of water molecules -
## Biology

28. Natural selection causes a. changes in the environment b. plants and animals to produce more offpsring than can survive c. changes in the frequency of certain favorable characteristics in a population d. all of the above D? 30. When Darwin published -
## Geography

Oct. 1: We're starting the last leg of our trip. Good thing! We're on our last legs! We sailed between Corsica and Sardinia to this Mediterranean port in the second-largest country in Western Europe. We're about 75 miles south of the French border,but -
## math

the el paso middle school girls baxketball team is going from el paso to san antonio for the texas state championship game.the trip will be 560 miles.their bus travels at an average speed of 60 miles per hour. estimate the distance the bus travels in 2 -
## physics

Two spherical objects are separated by a distance of 2.41 x 10-3 m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons. As -
## Chemistry

Vitamin K is involved in normal blood clotting. When 1.05 g of vitamin K is dissolved in 25.0 g of camphor, the freezing point of the solution is lowered by 3.53 °C. The freezing point and Kf constant for camphor can be found here. Calculate the molar -
## L.A.Help!!!!!!

Which sentence is a main idea of "Why Leaves Turn Color in the Fall"? A. Leaves stop making chlorophyll add summer ends. B. Leaves reflect the colors of corn, pumpkins, and cranberries in the fall. C. Photosynthesis begins in the fall. D. Longer days and -
## statistics

21. Nownes (2000) surveyed representatives of interest groups who were registered as lobbyists of three U.S. state legislatures. One of the issues he studied was whether interest groups are in competition with each other. Table 1–10 shows the results for -
## astronomy

The parallax of the red giant Betelguese is just barely measurable and has a value of about 0.005 arc seconds. What is its distance? Suppose the measurement is in error by + or -0.003 arc seconds. What limits can you set on its distance? 1/0.005 = 200 -
## Literature

Please help with Beowulf Comprehension questions. I just need a general idea to write around, something impressive. 1. Why did Beowulf decide to free the Danes from Grendel? 2. Why did Beowulf fight Grendel with his bare hands? What does this reveal about -
## English-Your thoughts count

Is this a good line from the poem Standing Alone by Chase. I can see the flower upon which my life grows, blooming into a rose. Do any of you get an idea of what this line is saying? This line basically compares someone's life to a roses. It tells you to -
## seminar MGT

Are “lean strategies” inconsistent with the achievement of optimization? Why or why not? This site may help you formulate your answer. http://www.isr.umd.edu/~jwh2/projects/gahagan.html If you post your ideas, we'll be glad to critique them. -
## Maths - Cartesian Equations

Find the corresponding Cartesian equation for each pair of parametric equations: x = t - (1/t) and y = 2*[t + (1/t)] The answer is y^2/16 - x^2/4 = 1 I have no idea where to begin. I tried squaring both equations in hope to easily remove t^2 but ended up -
## science

Sarah wants to use a model to get an idea of how far away the stars are. She uses a marble to represent the Earth, and she places a basketball 1 m away to represent the Sun, which is the nearest star. If Sarah wishes to keep the distances between objects -
## Chemistry

∆H⁰rxn, for the reaction of Ca(s) + 2H+(aq) -> Ca2+(aq) + H2(g) is -544 kJ/mol. ∆H⁰rxn, for the reaction of CaO(s) + 2H+(aq) -> Ca2+(aq) + H2O(l) is -193 kJ/mol. Based on these results, what is the ∆Hf for CaO(s) [in kJ/mol] if the heat of -
## AP Chem

Need help with this practice problem. I got the values for the gas to liquid and liquid to solid. Don't know how to do the rest? Heat of Vap and fusion too? No idea! What is the enthalpy change during the process in which 100.0 g of water at 50.0 C is -
## Calculus

Find the minimum distance between the curves y=e^x and y=lnx. Hint: Use the fact that e^x and lnx are inverse relationships. I have no idea where to start. Thanks! calculus - Reiny, Monday, January 18, 2016 at 9:02pm to get you going: let P(a , e^a) and -
## Math

1. "A bacteria population doubles in number every 3 hours. If there are 40 individuals now, how many in 24 hours?" SO I used the geometric series sum formula, with n=8(24/3=8), t1=40, and r=2, but I got 10200 as the answer, instead of what the answer key -
## Budgeting your money

After two months of following her budget, lisa finds that her food bills are much higher then she expected. Select her best option from those offered below. A : She should scrap her present budget and start all over again. B. It is clear that lisa is just -
## AP Chem

Need help with this practice problem. I got the values for the gas to liquid and liquid to solid. Don't know how to do the rest? Heat of Vap and fusion too? No idea! What is the enthalpy change during the process in which 100.0 g of water at 50.0 C is -
## Physics

Two steel blocks are at rest on a frictionless horizontal surface. Block X has a mas of 3.0 kg ans is attacthed by means of a light taut string to block Y that has a mass of 12 kg. A force of 45 N (E) is applied to block x. Calculate the force block Y -
## Physics Urgent

A 3.2 kg block is hanging stationary from the end of a vertical spring that is attached to the ceiling. The elastic potential energy of this spring/mass sytem is 2.2 J. What is the elastic potential energy of the system when the 3.2 kg block is replaced by -
## math

really need help, i have no idea how to answer this question ! A stone is thrown off a cliff. it reaches a maximum height of 30m after 2 seconds, then falls into the water below. it hits the water after 5 seconds a) how high above the water is the cliff ( -
## math

really need help, i have no idea how to answer this question ! A stone is thrown off a cliff. it reaches a maximum height of 30m after 2 seconds, then falls into the water below. it hits the water after 5 seconds a) how high above the water is the cliff ( -
## math

i really need help, i have no idea how to answer this question ! A stone is thrown off a cliff. it reaches a maximum height of 30m after 2 seconds, then falls into the water below. it hits the water after 5 seconds a) how high above the water is the cliff -
## Physics-Please check and I need help

Please help set this up- A person goes into the electric field and has an object with a charge value of 4.2E-6C. At a distance of 10m from the object that's responsible for the elctric field, the person sees a force of 8.0N on the object they have. What is -
## Social Studies

1)Marco Polo wrote an account of the marvels of: The Americas Venice Asia*** Spain 2)Which man and his army conquered Peru? Francisco Pizarro*** Atahualpa Hernan Cortes Montezuma 3)Traders who established rights to the Canadian fur trade were: Spanish -
## physics

ok im doing my physics homework and we have to submit the answers online. i keep getting these questions wrong and i only have one more try can someone please tell me how to work it? a 2.5 kg otter starts from rest at the top of a muddy incline 94.6 cm -
## English

Can you help me check these sentences on family and hobbies? I need to know if the word choice is correct. Thank you. 1)I’ve got short, curly, blond hair and blue eyes.In my family we are three: my mother, my father and I (not me). Correction: In my -
## DrRuss/bobpursley/drwls please help!!!

Can you please clarify your response to my post Wednesday April 4th at 8:53pm and 8:54pm. Thanks for all of your help!!! pleasde repost it. Yes, repost it. Go to it, copy, and paste it here. Thanks. A vertical spring with a spring constant of 450 N/m is -
## Physics please check repost

The pressure and volume of a gas are changed along a path ABCA in the figure. The vertical divisions on the graph represent 4.0 x 10^5 Pa, and the horizontal divisions represent 4.5 x 10^-3 m3. The diagram is a upright rectangle divided into small squares -
## Civics

Which of the following is the best example of the idea of "separation of powers" in the American constitutional system? A.The president appoints judges, but legislators get elected.** B. The process for creating laws involves Congress and the president.** -
## English

I need help with starting my essay. These are the organization of my essay. I am not sure what to put for paragraph #2. *Broad subject-My name *Limited Topic for thesis statement-Learning to cope with my height *Main Idea about this topic- Advantages of -
## english

♦ I store my finacial documents in a fire proof safe. (documents) ♦ Its a good idea to have extra copys of financial information incase your origanal is damaged. (copys) ♦ To store financial information properly I need to organize all of the bank -
## physics

The physics of a golf ball and kinetic energy. When a 0.045 kg golf ball takes off after being hit, its speed is 41 m/s. a) What is the kinetic energy of the ball after it has been hit? b) How much work is done on the ball by the club? c) Assume that the -
## Physics

A circuit contains sic 60-W lamps with a resistance of 240-ohm each and a 10.0-ohm heater connected in parallel. The voltage across the circuit is 120 V. Find the current in the circuit for the following situations:::: a. four lamps are turned on b. all of -
## spanish

here's what i got so far, for my spanish daily routine assigment: In the morning I wake up at 8:30 a.m. The first thing I do is brush my teeth and comb my hair. Then I go down and eat breakfast. By 9:00 a.m., I start my schooling (home). The first thing I -
## Math

There are 5 rows - there are 4 items in each row - there are NO more than 10 items Any idea how this can be solved? Draw a 5 pointed star connecting all the vertices. Place one item at each vertex and one item at the intersection of the lines joining the -
## Algebra

a round trip flight of 1037.5 miles takes 7 1/2 hours. The part of the flight with the wind takes 1 1/2 less than the other part of the trip. Find the speed of the plane in still air and the speed of the wind I have no idea how to do this...a little bit -
## Calculus

Sand falls from a conveyor belt onto a conical pile at a rate of 6ft/mi^3. The radius of the base is always equal to two-thirds of the pile’s height. At what rate is the height of the pile changing when the radius of the base of the pile is 2 ft? I -
## Algebra

a round trip flight of 1037.5 miles takes 7 1/2 hours. The part of the flight with the wind takes 1 1/2 less than the other part of the trip. Find the speed of the plane in still air and the speed of the wind. I have no idea how to do, can u give me a lead -
## Biochemistry

The ΔG°' for the reaction Citrate isocitrate is +6.64 kJmol-1= +1.59 kcalmol-1. The ΔG°' for the reaction Isocitrate α-Ketoglutarate is -267kJmol-1 = -63.9 kcalmol-1 What is the ΔG°' for the conversion of citrate to α-Ketoglutarate? Is that -
## math

There is a water reservoir beneath a circular garden to supply a fountain in the garden. The reservoir has a 26-inch diameter. The garden has a 12-foot diameter. How much of the garden doesn't contain the water reservoir? I have no idea how to do this -
## English

I forgot to include the following sentences when describing the school day. As I couldn't send you my previous post, I typed "Jane" (to see if something changed.) Can you please check them please? 1) We have lessons (or we go to school) from Mondays to -
## Physics

A horizontal segment of pipe tapers from a cross sectional area of 50 cm2 to 0.5 cm2. The pressure at the larger end of the pipe is 1.26 105 Pa and the speed is 0.029 m/s. What is the pressure at the narrow end of the segment? Pa Please help! physics - -
## Physics

A horizontal segment of pipe tapers from a cross sectional area of 50 cm2 to 0.5 cm2. The pressure at the larger end of the pipe is 1.26 105 Pa and the speed is 0.029 m/s. What is the pressure at the narrow end of the segment? Pa Please help! physics - -
## physics

A horizontal segment of pipe tapers from a cross sectional area of 50 cm2 to 0.5 cm2. The pressure at the larger end of the pipe is 1.26 105 Pa and the speed is 0.029 m/s. What is the pressure at the narrow end of the segment? Pa Please help! physics - -
## Physics

A ball of mass 0.6 kg, initially at rest, is kicked directly toward a fence from a point 20 m away, as shown below. The velocity of the ball as it leaves the kicker’s foot is 18 m/s at angle of 58◦ above the horizontal. The top of the fence is 10m -
## Math (please help!)

The largest Ferris Wheel in the world is the London Eye in England. The height (in metres) of a rider on the London Eye after t minutes can be described by the function h(t) = 67 sin[0.2094(t-30)] + 70 Using this equation i'm supposed to find the diameter, -
## criminal justice

hi, I just need some ideas in how to make a SOP Standard operating procedure for guard behavior in a correctional. I think I will be including things like guard fraternization with prisoners, treatment of prisoners of the opposite sex, acceptance of bribes -
## Physics

A fullback preparing to carry the football starts from rest and accelerates straight ahead. He is handed the ball just before he reaches the line of scrimmage. Assume that the fullback accelerates uniformly (even during the handoff), reaching the line with -
## chemistry

With a halogen X, a metal M forms ionic compounds MX, MX2 and MX3. The lattice energies of the compounds are -1340, -3840 and -7020 kJ/mol, respectively. The ionization energies of the metal are 360 (for M+), 1236 (M2+) and 2990 (M3+) kJ/mol and the -
## Philosophy

Q: Explain Sartre's idea of freedom and compare that to Walter Benjamin's notion of "aura" and 'authenticity". A: Sartre believes that we are condemned to be free. He syas that we were thrown into this world but now we are responsible for everything that -
## Physics

Orange light (wavelength=600nm) is passes through a single slit. Use a=2000nm and L=2m. a) Determine the linear size on the screen of the 2nd maximum (not including the central maximum). b) Determine how many total maxima occur in the pattern. a) I thought -
## english

Does anyone have any ideas for an UNpersuasive essay? Instead of doing a normal essay, my class is doing an essay on anything that's crazy that people would normally not believe but if I use facts and other information, maybe they might believe me. I -
## Physics

Orange light (wavelength=600nm) is passes through a single slit. Use a=2000nm and L=2m. a) Determine the linear size on the screen of the 2nd maximum (not including the central maximum). b) Determine how many total maxima occur in the pattern. a) I thought -
## Honors Chemistry

In my vocabulary crossword puzzle, I have one clue answer left to fill in the puzzle, but the clue doesn't match anything that even EXISTS: 9. A group 18 element (on the periodic table) Answer so far: N??E?????S NONE of the group 18 elements fit in here, -
## Calculus Assignment

Hey there. Okay well I just started first year university and we got an assignment to sorta brush up our rememberance of everything and well...I'm not remebering to well. If anyone can help me with this question that would be great. Thanks. The secant -
## Physics repost

FM radio stations use radio waves with frequencies from 88.0 to 108 MHz to broadcast their signals. Assuming that the inductance has a value of 4.60 x 10^-7 H, determine the range of capacitance values that are needed so the antenna can pick up all the -
## math

In each case, consider what you know about the distribution and then explain why you would expect it to be or not to be normally distributed. a. The wealth of the parents of students attending your school b. The values that a group of fourth-grade students -
## Social studies please check my answers!!!

How was the government outlines in the Fundamental orders of Connecticut (FOC) different from the Government in Massachusetts? Select all that apply. A. The FOC gave the vote to all men who were property owners.•• B. The FOC limited the governor's -
## Chemistry

The atomic mass of chlorine is listed as 35.454 amu on the periodic table. It has two naturally occurring isotopes, Cl-35 and Cl-37. What are the approximate percentages of each? I have no idea how to figure out the percentages for this. I know how to -
## English

Can you check the meaning of these few phrasal verbs, please? Thank you In the beginning I dislike my classmates but then I came around thinking they aren't so bad. Can you drop in on me after school. I need to talk to you. My plan to go to the mountains -
## PLEASE HELP BIO

If the side chain of a glutamic acid residue has a pKa of 4.1, at pH 6.1 the ratio of uncharged to charged side chain would be about A. 100:1 B. 10:1 C. 1:1 D. 1:10 E. 1:100 -i HAVE NO IDEA Which of the following amino acids has a side chain that can serve -
## earth

Sometimes streams and rivers run in fairly straight lines. Sometimes, they meander or curve and wander. What is your idea about how faster water affects the shape of a stream or river? A) Faster streams are straighter. B) Faster streams curve more. C) The -
## Chemistry

Predict the standard cell potential and calculate the standard reaction Gibbs free energy for galvanic cells having the following cell reactions: 2H2+O2=2H2O in acidic solution 2H2+O2=2H2O in basic solution I understand the idea behind the problem, but I -
## Calculus STUCK

Dont know if the radicals will show up.. 2ã3(ã243-2)-ã2(5+7ã2) Can be expanded and simplified to the form p + qã2 + rã3. the value of p + q + r is_____ First I simplified the V243 and I got 9V3 2V3(9V3-2)-V2(5+7V2) 18V9-4V3-5V2-7V2 -
## physics

What is the kinetic energy of each electron in a beam of electrons if the beam produces a diffraction pattern of a crystal which is similar to that of a beam of 1.00 eV neutrons? Note: The electron mass is 9.11 × 10–31kg; and the neutron mass is 1.67 × -
## language arts Ms. Sue please

5. Which of the following sentences is punctuated correctly? (1 point) I'd like to go outside but I need to finish my homework first. Since Bobby's birthday is in July he isn't able to celebrate with his classmates. Even if I have to do it myself I will -
## Bus. law

Is whisle-blowing an appropriate subject for corporation ethics codes? yes. If you wanted to run a business, would you like for your employees to report waste, graft, corruption, or worse? Now if you are doing those things, maybe it would not be such a hot -
## Math

I'm after understanding more than an answer but an answer would be greatly appreciated. The question reads as "On the answer sheet for this question is shown an x-y graph of the function [y(x)=x^2cos(3x)] Add to that same picture a rough sketch of the -
## Maths

I'm after understanding more than an answer but an answer would be greatly appreciated. The question reads as "On the answer sheet for this question is shown an x-y graph of the function [y(x)=x^2cos(3x)] Add to that same picture a rough sketch of the -
## physics

a person jumps from a window 15m above a safety net. The survivor stretches the net 1.0 m before coming to rest. What was the average deceleration experienced by the person when they were slowed to rest by the net? I do know the answer is -150m/s2,but I -
## Physics please clarify

A charge of -3.00 µC is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass (radius = 0.135 m). The charges on the circle are -3.20 µC at the position due north and +5.00 µC at the position due east. What is -
## Physics

consider a cart being pulled up an inclined plane by a student during a Physics lab. The applied force on the cart is 18 N is directed parallel to the incline to cause the cart to be displaced parallel to the incline for a given displacement of 0.7 m. The -
## Physics

consider a cart being pulled up an inclined plane by a student during a Physics lab. The applied force on the cart is 18 N is directed parallel to the incline to cause the cart to be displaced parallel to the incline for a given displacement of 0.7 m. The -
## World History Answer Check (Ms. Sue)

What sources inspired the Renaissance thinkers? A: Renaissance thinkers were inspired by a new vision of the world and the value of the individual. The Renaissance thinkers found glory in the idea that the individual had gifts that were almost divine. They -
## Chemistry

A 76.00-pound flask of mercury costs $150.00. The density of mercury is 13.534 g/cm3. a) Find the price of one cubic inch of mercury by calculating the following intermediate values. Following intermediate values include grams, cubic centimeters and cubic -
## statistics

Chicken Delight claims that 90 percent of its orders are delivered within 10 minutes of the time the order is placed. A sample of 100 orders revealed that 82 were delivered within the promised time. At the .10 significance level, can we conclude that less -
## College Physics w/Calculus

(a) What is the escape speed on a spherical asteroid whose radius is 570 km and whose gravitational acceleration at the surface is 3.1 m/s2? (b) How far from the surface will a particle go if it leaves the asteroid's surface with a radial speed of 1000 -
## science

1. In paper chromatography, is the substance being tested the solute or solvent? Explain your answer. I think the substance being tested is a solvent. I think this because it is being dissolved to form the ink on the filter paper. 2. A bucket of paint -
## Science

1. In paper chromatography, is the substance being tested the solute or solvent? Explain your answer. I think the substance being tested is a solvent. I think this because it is being dissolved to form the ink on the filter paper. 2. A bucket of paint -
## PHYSICS

The average kinetic energy of an atom in a monatomic ideal gas is given by KE=3/2kT, where k=1.38*10^-23J/K and T is the Kelvin temperature of the gas. Determine the de Broglie wavelength of a helium atom (mass=6.65*10^-27kg) that has the average kinetic -
## English

Love-Charm Song (Ojibway) I can make That man bashful I wonder What can be the matter That he is so bashful. Song of a Maiden Disappointed in Love (Blackfoot) My lover looked like an eagle from a distance, But alas! When he came nearer I saw that he was -
## Civics

Which of the following is the best example of the idea of "separation of powers" in the American constitutional system? A.The president appoints judges, but legislators get elected.** B. The process for creating laws involves Congress and the president.** -
## legal and ethical issues

Which element do you think plays the greatest role in influencing employee behavior? Explicit policy or implicit policy. First find out what explicit and implicit mean. Then think about a couple of job situations. Pretend you are the employer, then the -
## 7th grade math Ms. Sue plese

Can you please help me solve these problems? I have no idea! 2. w over four – 4 = 3 (1 point) –4 28 3 11 3. d over three+ 10 = 7 (1 point) 51 20 0 –9 6. –6 – 7(c + 10) (1 point) 64 – 7c –76 – 7c 4 – 13c –16 – 13c 7. 2x + 3(x – 2) -
## integrated math 1- please help!!!

Among a group of people, 10% are from NYC and 90% are not. All people from NYC are under 18 years old, and 70% of those not from NYC are also under 18 years old. One person is chosen at random, and he or she is under 18. What is the probability that the -
## ap statistics

an opinion poll asks a sample of 500 adults (an SRS) whether they favor giving parents of school age children vouchers that can be exchanged for education at any public or private school of their choice. Each school would be paid by the government on the -
## Propagation of error and sig. figs

I'm really embarrassed to ask this! I knew how to do it before but I forgot after 2 years. I remember learning it for analytical chemistry :( So a basic problem: What is x= a+b+c? given that: a= 100.7 +/- 0.05 b= 0.61 +/- 0.005 c=226 +/- 0.5 OK. My -
## speech

Can you please help me out with a speech? I'm in 10th grade at High School and we're doing speeches soon. I'm not lazy and trying to get someone to write a speech for me but I seriously suck at speeches and have no idea what to write or talk about. Can you