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College Chem
Impure sample of table salt that weighed 0.8421g, when dissolved in water and treated with excess AgNO3, formed 2.044g of AgCl. What is the percentage of NaCl in the impure sample? Do I need the molecular weight to start this equation? Where do I start?
College Chem
When a0.269g sample of a barium compound was treated with excess H2SO4, 0.0891g of BaSO4 formed. What is the percentage of Barium in the compound?
college microeconomics
An article in the journal of New York State Economics Association claims that the income elasticity of demand for public college education in New York is +1.67. Who would find this information useful and why? come up with 3 interested parties
college
Solve the inequality using a sign graph (test point method) x^3-x^2-4x+4<0
college calculus 1
Find the local and absolute extreme values of the function on the given interval. f(x)=x^3-6x^2+9x+1, [2,4]?
College Chemistry Lab
For the following mixture, determine the initial concentration of Fe^3+. 0.00250M Fe^3+ --- 8.00mL 0.00250M SCN^- --- 7.50mL 0.10M HNO3 --- 4.50mL
College Chemistry Lab
Determine the molarity of FD&C Yellow #5 in the following solution that's prepared by mixing the dye solution with water and alcohol. None of the solutes react with one another. 6.35x10^-5M FD&C Yellow #5 = 6.50mL deionized water = 6.50mL ethyl alcohol = 6.80mL
College Chemistry Lab
Suppose that a 2.50x10^-6M solution of red dye No. 2 had an absorbance of 0.585 at its wavelength of maximum absorbance. A second solution of red dye No. 2 is too concentrated to read its absorbance so 5.00 mL of the concentrated dye solution was diluted with water to a volume...
College Physics
You are holding a shopping basket at the grocery store with two 0.69-kg cartons of cereal at the left end of the basket. The basket is 0.90 m long. Where should you place a 1.8-kg half gallon of milk, relative to the left end of the basket, so that the center of mass of your g...
College Physics
Two 72.0-kg hockey players skating at 7.00 m/s collide and stick together. If the angle between their initial directions was 130 degrees , what is their speed after the collision?
College Physics
During a rescue operation, a 5600-kg helicopter hovers above a fixed point. The helicopter blades send air downward with a speed of 69 m/s. What mass of air must pass through the blades every second to produce enough thrust for the helicopter to hover?
college
Explain the relationship between program planning and grant proposals. When describing each component, address their similarities and differences as well as how they relate to each other.
college
Smokey the Bear celebrated his 65th birthday this year. Why has the message of the forest service that “only you can prevent forest fires” changed in recent years to allow more fires?
College Chemistry Lab
The absorbance of a 9.25x10^-8M solution of a fabric dye was measured to be 0.835 at a particular wavelength. What would the absorbance be for a 4.65x10^-8M solution of the same dye under identical conditions?
College Chemistry Lab
The absorbance of a 6.3x10^-5M solution of an iron complex was measured to be 0.328 at the optimum wavelength. A second solution of the iron complex has an absorbance of 0.833 measured under identical conditions. What is the molarity of the complex in the SECOND SOLUTION?
College CHem
Suppose you accidently add too much NaOH during a titration. You then add a volume of HCl exactly equal to ½ the volume of NaOH actually used in the titration. What effect does this have on the Ka?
College Math
Find the exact value of: sin [2sin^-1 (-sq rt (3)/2)] how do i answer this question? i don't know how to find the answer.
college math
find the range of the function defined by the equation and the given domain. f(x)=3/x-6; D={-3,0,3,9}
college
what values are excluded from the domain of the function f(x)= x-5/x?
College Physics
A 3400 kg open railroad car coasts along with a constant speed of 7.50 m/s on a level track. Snow begins to fall vertically and fills the car at a rate of 5.10 kg/min.Ignoring friction with the tracks, what is the speed of the car after 85.0 min ?
college Psychology
I am having trouble describing the interaction (How does effect of one Independent variable depend on level of other independent variable and why?) My 1st independent variable is Type of Stimulus: with 2 levels pictures and words. My 2nd independent variable is Type of Content...
college physics
A 12100 kg railroad car travels alone on a level frictionless track with a constant speed of 20.5 m/s. A 5850 kg load, initially at rest, is dropped onto the car. What will be the car's new speed? Please help!
college physics
From what maximum height can a 61 kg person jump without breaking the lower leg bone of either leg? Ignore air resistance and assume the CM of the person moves a distance of 0.65 m from the standing to the seated position (that is, in breaking the fall). Assume the breaking st...
college physics
You are the design engineer in charge of the crashworthiness of new automobile models. Cars are tested by smashing them into fixed, massive barriers at 50 km/h (31 mph). A new model of mass 1400 kg takes 0.18 s from the time of impact until it is brought to rest. Calculate the...
college
The diameter of a wire should be 8 cm. It follows a normal distribution and has a standard deviation of 0.01 cm. A person tests each delivery by taking 5 samples, accepting the goods only if the mean is at most 8.01 a) Find the probability of type 1 error? b) A hypothesis test...
College Physics
If you slam your finger in a car door how can you thank Coulomb's Law for the fact your finger wasn't chopped off? I don't understand.
Using the factor Theorem
use the factor theorem to determine whether x-c is a factor of f(x) f(x)=x^3+8x^2-18x+20; x-10 I have a doubt in my answer, i determined that x-10 is not a factor... am i right? please verify as my exam is tomorrow night at college. thank you for your time and hard work:)
college
Explain why, in terms of job performance and efficiency, knowing medical billing terms is critical for working in the health care field. Respond in at least 150 words and provide specific examples.
college chemistry - answer check ASAP!
The corrosion of iron can be thought of as an electrochemical cell reaction. Calculate the voltage difference between two points of corroding iron differing only in their partial pressures of oxygen: 0.20 atm of oxygen at one point and 0.0010 atm of oxygen at the other. The r...
Chemistry II (College)
How would I go about solving this problem? Can someone show me an equation that can be used? The decomposition of dimethyl ether at 504°C is a first-order reaction with a half-life of 27 min. (CH3)2O(g) CH4(g) + H2(g) + CO(g) What will be the total gas pressure after 2.18 ...
College Chemistry
a solution contains .25M Ni(NO3)2 and .25 M Cu(NO3)2. Can the metal ions be separated by slowly adding Na2CO3?Assume that for successful separation 99% of the metal ion must be precipitated before the other metal ion begins to precipitate, and assume no vlume change on additio...
Chemistry II (College)
How would I go about solving this problem? Can someone show me an equation that can be used? The decomposition of dimethyl ether at 504°C is a first-order reaction with a half-life of 27 min. (CH3)2O(g) CH4(g) + H2(g) + CO(g) What will be the total gas pressure after 2.18 ...
college
You are trying to overhear a juicy conversation, but from your distance of 16.0 , it sounds like only an average whisper of 20.0 . So you decide to move closer to give the conversation a sound level of 65.0 instead. How close should you come?
College Math!
A store receive an invoice for $1773.75 dated January 23 with terms 3/10, 1.5/25, n/45. a) What is the balance after a payment of $1250 on Februray 2? 1250/(1-.03)=1288.66 1288.66-1773.75=485.09 Answer for (a)$485.09 b) What additional payment on February 17 will settle the i...
Chemistry II (College)
How would I go about solving this problem? Can someone show me an equation that can be used? The decomposition of dimethyl ether at 504°C is a first-order reaction with a half-life of 27 min. (CH3)2O(g) CH4(g) + H2(g) + CO(g) (a) What will be the partial pressure of (CH3)2...
college govt 2302
what was the summary of Federalist paper no. 10 by james madison?
achievements
Born in 1981 Delhi, I started my theatre career in the year 1999. Thereafter, I joined the art and culture society of my college and was awarded with college crest for my services in the theatre activities . Later, in the year 2002, I joined the professional theatre company in...
college
Write a 350-700 -word response describing each court level and its responsibilities. Then, describe the two main differences you found between the state and federal court systems.
college physics
Now assume that the pitcher throws a 0.145 kg baseball parallel to the ground with a speed of 32 m/s in the +x direction. The batter then hits the ball so it goes directly back to the pitcher along the same straight line. What is the ball's velocity just after leaving the ...
college
Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 Miles per hour and train B is traveling at 88 miles per hour. Train A passes a station at 1:20 am A.M. If train B passes the same station at 1:35 A.M., at what time will train B c...
college
Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 Miles per hour and train B is traveling at 88 miles per hour. Train A passes a station at 1:20 am A.M. If train B passes the same station at 1:35 A.M., at what time will train B c...
Medical Assittant (college)
How do you fill out medical insurace and legers and stuff for a patient?
college
For the reaction P4(s) + O2(g) = P4 O10(s) Identify the limiting reaction mixture conataining 1.00 mol each of P4 and O2
College chemistry
A buffered solution is made by adding 50.0 g NH4Cl to 1.00 L of a 0.70 M solution of NH3. Calculate the pH of the final solution. (Assume no volume change.)
college chem
. Jack Daniels Tennessee whiskey is 40.00% ethanol by volume. However, % alcohol by mass is quite different from % by volume. The molality of ethanol in an aqueous solution that is 40.00 % ethanol by volume is 10.88 molal. A) Find the % ethanol by MASS, based on the molality. ...
psych 210 appendix c
Axia College Material Appendix C Match the psychological theories with the appropriate statement(s): __Psychodynamic Theory __Trait Theory __Learning Theory __Sociocultural __Humanistic Theory A. Individualism versus collectivism B. Popular theorist Eysenck initiated the five-...
College Physics**
A student goes to planet x and wants to determine the gravity there. The student knows from physics lab that they can use Atwood's machine to determine gravity. The student places a 100g mass and a 110g mass at the end of a string and hangs it over a pulley. The student pl...
college chem
N2O4 --->2NO2 a 1 liter flask is charged with .4 mols of N2O4. at equilibrium at 373 k, .0055 mols of N2O4 remain. what is the Kc for this reaction? please explain to me how to get the rate law for this and solving
College Chemistry
A mixture of He and O2 is placed in a 4.00L flask at 32 degrees Celsius. The partial pressure of the He is 2.7 atm and the partial pressure of the O2 is 1.4 atm. What is the mole fraction of O2?? I don't understand how to do this.
college chem
How much heat is absorbed by the calorimeter if the temperature change is 8 C and the calorimeter constant (Heat Capacity) is 3.3 J/K? Your Answer:
college chem
How much heat (in Joules) is gained by the water where a chemical reaction takes place in 100 mL aqueous solution and has a temperature increase of 15C?
CRT205
(I did not get some answers correct on this categorizing fallacies assignment. It was graded but not with the correct answers. Can someone help me by telling me which type of fallacies the below statements are please so I can understand better. Thank you!) 1.My friend, who goe...
College Chemistry II
Determine the pH for .16M of NaC2H3O2. Determine the pH for .18M of NaCl.
college
1.You want children to walk in the hallway.If they begin to run,the best thing to say to redirect them is:a."Stop running" b."Walk in the hallway" c."Running is for outside" d."We don't run"
College Chem.
If 20.0 mL of glacial acetic acid (pure HC2H3O2) is diluted to 1.30 L with water, what is the pH of the resulting solution? The density of glacial acetic acid is 1.05 g/mL.
Temple College
had some Psychology homework resereching a female Psychiatrist named Viola Brody. but when i reaserch her online through all the major search engines i come up empty. all i've found so far is that she wrote a book witch i already knew. can you help me with a place to look ...
college english
I was told in class to find a piece of "biased writing" and use the knowledge about critical thinking. how would i know whether an article is biased? really confused. also, it's a 1000 word essay, so it'd be really nice to get answer!
college financial planning
How do i prepare journal entries when they ask you to record perpetual system merchandising transactions of a company?
College Stats
An urn contains 4 green, 6 blue and 10 yellow chips. You pay $5 to draw a chip from the urn. Here are the rules of the game: if you draw a green chip, the dealer returns you your bet and gives you an additional $5. if you draw a blue chip, the dealer returns you your bet and g...
college STATISTICS
Sample of 80 people randomly asked in casino shows that average lost per person is $160 with a standard deviation ó = $40. Based on this data create a 99% confidence interval for population mean. Does loss of $180 for single person contradict expectation? Explain your a...
college chem
In the reaction PCl5(g) ---> PCl3(g) + Cl2 (g) 0.200 mol of PCl5 is introduced into a 2.00 liter vessel. At equilibrium, the concentration of Cl2 is found to be 0.0500 molar. Find Kc for the reaction.
college math
suppose that in a class of 50 students, 12 are married and 20 live at their parent's homes. two of the married students live at their parents' homes. a. draw a venn diagram of this information. b. how many students are single and don't live at their parents' ho...
college math
find the vertex and graph of y=.3x2+1.8x-2
College Chem II
Determine the [H3O+] of a 0.160M solution of benzoic acid.
college physics
A rope is used to pull a 3.57 kg block at constant speed 5.10 m along a horizontal floor. The force on the block from the rope is 6.82 N and is directed 15° above the horizontal. (a)What is the work done by the rope's force? (b) What is the increase in the thermal ener...
College Chemistry
What is the pH of the following solutions? 1)a solution that is 5.4×10−2 M in HClO4 and 3.0×10−2 M in HCl 2)a solution that is 1.80% HCl by mass (Assume a density of 1.01g/mL for the solution.) Please help! I am so confused!
College employee benefits
1. What is qualified plan? 2. What is qualified for tax deduction?
french
can someone check my french essay on pocket money and improve where possible very much appreciated Je recois dix livres d'argent de poche par semaine de mes parents. Pour gagner mon argent de poche je dois aider mes parents a la maison et je dirais que j'aide un peu a ...
college
a researcher reports an F-ratio with df=3,36 from an idependent-measure research study. a-how many treatment condition were compared in the study? b-what was the total number of participant in the study
college fundamentals of manageral economics
Evidenced by the recently reported quarterly growth the US economy seems to be on its way out of the most sever recession since the Great Depression. The unemployment picture however remains rather bleak. Still over 14 million Americans are without jobs. The US economic condit...
Math
I have a bar graph that shows the number of students by major in the College of Arts and Science. Math shows 200 students History shows 300 students English shows 400 students Science shows 150 students Other shows 175 students What percent of students in the college are histo...
college
how can i make informative speech give me guideline for that.. you can send me answer at mu id.
college
Sammy takes 5 hours longer to complete 300 lines of code the Martin. Together Sammy and Martin can complete the code in 6 hours.
college algebra
Is x= -2 a solution for this inequality? 4+2 x-7>-4(x-2)-9
College Physics
Part A) A 2.2 kg rock is released from rest at the surface of a pond 1.8 m deep. As the rock falls, a constant upward force of 5.0 N is exerted on it by water resistance. Let y=0 be at the bottom of the pond. Calculate the nonconservative work, Wnc , done by water resistance o...
college
in the following sentence i have to add an adjective clause at the indicated point. Companies that.....are prospering more today than firms that..... How do I answer that???
Gr. 12 College English
I can't seem to figure out the tone of the narrator in "The Lottery Ticket", and how it is established.
College Physics
A 2.2 kg rock is released from rest at the surface of a pond 1.8 m deep. As the rock falls, a constant upward force of 5.0 N is exerted on it by water resistance. Let y=0 be at the bottom of the pond. Calculate the nonconservative work, Wnc , done by water resistance on the ro...
college
what is the path of the optic nerve
college
Complete the square 2y^2-y-6=0
college
the more elastic the demand for the good labor produces, the less elastic the demand for labor. True or False When a monopolistically competitive firm is in long-run equilibrium, average total cost is at its minimum. True or False
college
A monopolist will always make a profit in the short run. true or false
College Physics
Gravity on the surface of the moon is only 1/6 as strong as gravity on the Earth. What is the weight of a 14 kg object on the Earth? The acceleration of gravity is 10m/s2 . Answer in units of N.
College Chemistry
A 38 L gas tank at 35 Celsius has nitrogen at a pressure of 4.65 atm. The contents of the tank are transferred without loss to an evacuated 55.0L tank in a cold room where the temperature is 4 Celsius. What is the pressure of the tank??
College Chemistry
I am trying to figure out how many minutes are required for sunlight to travel from the Sun to Earth? Assuming the sun is 93,000,000 miles from Earth and that sunlight travels at 1.86x10 to the 5th power miles per second. These things are so tricky, i know i have to convert se...
College Chemistry
here is the question: A sapphire gemstone contains 52.7% aluminum, 47.% oxygen, and traces of titanium. If the saoohire was found to contain 0.155g of oxygen, what is the mass of the gemstone? i think this is a precent unit factor but i dont know how to set it up. PLEASE HELP ME!
college chemistry
how much solute is needed to prepare 450ml of a 2.0% (m/v) potassium chloride solution?
college
Identify internal or external rewards that affect recruitment and retention of quality teachers
college
crt 205 Week 6 DQ 2 critical thinking text
College English
I need help with making a thesis for a paper on preventing teens from becoming teen parents.
college physics
A 147 g baseball is dropped from a tree 12.0 m above the ground. If it actually hits the ground with a speed of 8.00 m/s, what is the magnitude of the average force of air resistance exerted on it?
College Chemistry
Calculate the heat of formation reaction for SiO2(s)+4HF(g) --> SiF4(g)+2H2O(l) I got -129.6 and it says I'm wrong
college geomrtry
What are the differences between linear and quadratic equations? How are these differences displayed in a graph? Write a brief scenario that can be modeled with a linear equation. Summarize a situation modeled by a quadratic equation. Are there equations that are neither linea...
college
TiO2(s) + H2(g) Ti(s) + H2O(g) (a) Consider the unbalanced equation above. What is the maximum mass of titanium that can be produced when 2.65 g of TiO2 and 3.40 g H2 react? = ?g Ti (b)Assume the reaction in part (a) goes to completion. Calculate the mass of excess reactant. =?g
business
I need help with Axia College Class Harvesting the Money Tree Fin 200 Final Exam week 9
Ethics(Proofread)
Can you please prrof reread this paper for me? As you seen before I had to write about different ethnic groups and discrimination. Please let me know what you think. Thanks! Jews in America Jews in the United States have faced prejudice, segregation, and racism. From the time ...
college
how many grams of magnesium are required to produce 2.154 g of magnesium nitride?
college
how to figure out how many grams of magnesium are required to produce 2.154grams of product?
college
how to I figure how much copper is in 2.154 gram of copper sulfide?
college physics
A 22.1 kg child descends a slide 3.4 m high and reaches the bottom with a speed of 2.4 m/s. How much thermal energy due to friction was generated in this process? I'm not sure where to even start this problem. Please help.
college
i need to know how to compose an essay
college physics
A 1300 kg car rolling on a horizontal surface has speed v = 65 km/h when it strikes a horizontal coiled spring and is brought to rest in a distance of 2.9 m. What is the spring stiffness constant of the spring?
College Physics
What would be the direction of an angle at 50 degrees, 150 degrees and 295 degrees on the scale around the INSIDE of a force table?
College Physics
When I graphically find a vector sum and then analytically solve for the resultant, I am getting two completely different answers. Why might this be?
college physics
A spring-loaded toy gun is used to shoot a ball of mass m= 1.50 kg straight up in the air. The spring has spring constant k = 667 N/m. If the spring is compressed a distance of 25.0 cm from its equilibrium position y=0 and then released, the ball reaches a maximum height h_max...
college
what are the clinical uses of colchicines
college chem
At 750°C, the Kp for the reaction 2 CO + O2➞ 2 CO2 is 2.72 x 10^11. ( 2.72 times ten to the eleventh) At that temperature, CO and O2 are added to a constant volume vessel. The initial pressure of the CO is 2.00 atm, and that of the O2 is 1.50 atm. Calculate the pres...
chemistry
hello i was just trying this problem for my college class and its kinda hard. I got up to the last part, but I can't figure it out.. Impure nickel is refined by smelting sulfide ores through mond process: Ni (s) + 4CO (g) --> Ni(CO)4. There's like 8 parts to this pr...
college
What is the difference between values and factors in human service organization
college chem
At 750°C, the Kp for the reaction 2 CO + O2➞ 2 CO2 is 2.72 x 10^11. ( 2.72 times ten to the eleventh) At that temperature, CO and O2 are added to a constant volume vessel. The initial pressure of the CO is 2.00 atm, and that of the O2 is 1.50 atm. Calculate the pres...
College-Chemistry
NaOH(s)+ H2SO4(aq)=Na2SO4(aq) + H2O(l) Consider the unbalanced equation above.A 0.900 g sample of impure NaOH was dissolved in water and required 37.0 mL of 0.145 M H2SO4 solution to react with the NaOH in the sample. What was the mass percent of NaOH in the sample?
college chemistry
If 0.490 mol of Pb(NO3)2 and 130 mL of 1.08 M aqueous NaI are reacted stoichiometrically according to the balanced equation, how many moles of Pb(NO3)2 remain? Round your answer to 3 significant figures. Pb(NO3)2(aq) + 2NaI(aq) → PbI2(s) + 2NaNO3(aq)
College Physics
A projectile is fired at an upward angle of 55.0 degrees from the top of a 230m cliff with a speed of 180m/s.What will be its speed when it strikes the ground below? (Use conservation of energy.)
COLLEGE CHEMISTRY
If 0.340 mol of solid CaCO3 and 410 mL of 0.829 M aqueous H2SO4 are reacted stoichiometrically according to the balanced equation, how many milliliters of 0.829 M aqueous H2SO4 remain? Round your answer to 3 significant figures. H2SO4(aq) + CaCO3(s) → CO2(g) + CaSO4(s) +...
college physics
A block of weight = 35.0 N sits on a frictionless inclined plane, which makes an angle theta = 27.0 with respect to the horizontal. A force of magnitude = 15.9 N, applied parallel to the incline, is just sufficient to pull the block up the plane at constant speed. What is Wg, ...
college physics
Two forces, of magnitudes F_1 = 80.0 N and F_2 = 25.0 N, act in opposite directions on a block, which sits atop a frictionless surface. Initially, the center of the block is at position x_i = -4.00 cm. At some later time, the block has moved to the right, and its center is at ...
college physics
Suppose that the coefficient of friction between your feet and the floor, while wearing socks, is 0.250. Knowing this, you decide to get a running start and then slide across the floor. If your speed is 3.00 m/s when you start to slide, what distance, d, will you slide before ...
college
if an object sinks in a particular fluid,the weight density (weight/volume) of the object will less than, equal to, or greater than, the weight density of the fluid
college
One mole of oxygen gas is at a pressure of 5.10 atm and a temperature of 32.0°C. (a) If the gas is heated at constant volume until the pressure triples, what is the final temperature?
College Physics
a 1200kg car coasts from rest down a driveway that is inclined 20degrees. to the horizontal and is 15m long. how fast is the car going at the end of the delivery if.... (a) friction is negligible (book answer is 10m/s) (b) a friction force of 3000n opposes the motion? (book an...
statistics
College students average 7.8 hours of sleep per night with a standard deviation of 45 minutes. If the amount of sleep is normally distributed, what proportion of college students sleep for more than 9 hours?
College Accounting
The following questions contain numbers and you have to do different things with the number in each question. I'm not sure of the steps to take to figure out each answer. And, when I try to do what the book shows me I come up with wrong answers. So if you could give me the...
college algebra
By setting up and solving a proportion involving x, find the value of x for the car that you have chosen. State the type of car, the mileage, and show both the set up of the proportion and the steps to solve. Include units with your answer. How would I do this problem? What fo...
college physics
The space shuttle releases a satellite into a circular orbit 550 km above the Earth. How fast must the shuttle be moving (relative to Earth) when the release occurs?
college
A sports car of mass 1300 kg (including the driver) crosses the rounded top of a hill (r = 86 m) at 23 m/s. Determine the normal force exerted by the road on the car. Determine the normal force exerted by the car on the 74 kg driver. Determine the car speed at which the normal...
College Accounting
A company had stock outstanding as follows during each of its first three years of operations: 2,500 shares of 10 %, $100 par, preferred stock and 50,000 shares of $10 par common stock. The amounts distributed as dividends are presented below. Determine the total and per shar...
College Algebra
Why does the inequality sign change when both sides are multiplied or divided by a negative number? Does this happen with equations? Why or why not?
Business Management questions
CASE 1—E-Biz Dreams Robert Downs has just completed a Master of Science degree in computer science at Major State University. He now wants to begin a new Internet business selling his services as a Web site maker for companies in his home city, St. Louis. He estimates tha...
college
Calculate the force of Earth's gravity on a spacecraft 12,800 km (2 Earth radii) above the Earth's surface if its mass is 1550 kg.
college
if distance is 59 cm and the weight is 3 kg then what is the distance when the weight is 9 kg
college
how many grams of chlorine are in 65 grams of CF2Cl2?
eng college
Can someone please help revise. It is a proposal for a research paper! Thank You! Work and family are both central to our way of life. Finding a balance between the two is an issue of importance to men, women, and employers. Therefore, I will argue that the constant struggle t...
College Chemistry
A student placed 14.0g of glucose (C6H1206) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.-mL mark on the neck of the flask was reached. The flask was then shaken until the solution was unifor...
College Chemistry
A student placed 14.0g of glucose (C6H1206) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.-mL mark on the neck of the flask was reached. The flask was then shaken until the solution was unifor...
College Chemistry
A student placed 14.0g of glucose (C6H1206) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.-mL mark on the neck of the flask was reached. The flask was then shaken until the solution was unifor...
college chem
a first order reaction has a fifth life of 20 seconds ( the amount of time needed to use up 1/5) a) Prove that the reaction has a constant 1/5 life. b) find the half life.
College Chemistry
A 542-g piece of copper tubing is heated to 89.5 degrees Celcius and placed in an insulated vessel containing 159 g of water at 22.8 degrees Celcius. Assuming no loss of water and a heat capacity for the vessel of 10.0 J/K, what is the final temperature of the system (c=0.387 ...
college physics
The spring constant can be determined from the oscillatory motion. For this case, Newton's second law gives [(m(d^2)x) / (d(t^2))] + kx = 0 where x is the displacement from the equilibrium position. The sample mass is suspended from the spring by a sample holder. Does m in...
College Physics
An 0.10 kg object is hanging from your rearview mirror. While you are accelerating 4.0 m/s2 the string mkes an angle with the vertical. There is a weight force going down and tension force along the string. What is the tension force and the angle?
college math
An individualpurchaseda4-year, $10,000 promissorynotewithaninterestrateof8.5%/ year compoundedsemiannually.Howmuchdidthe note cost?
college
If the 1 kg standard body has an acceleration of 2.00 m/s^2 at 20.0 degrees to the positive direction of an x axis
College Physics
Two long, straight, parallel wires 8.0 cm apart carry currents in opposite directions. Use the right-hand source and force rules to determine whether the forces on the wires are attractive or repulsive. a)Repulsive b)Attractive If the wires carry equal currents of 4.0 A, what ...
College Physics
A solenoid is wound with 290 turns per centimeter. An outer layer of insulated wire with 200 turns per centimeter is wound over the solenoid's first layer of wire. When the solenoid is operating, the inner coil carries a current of 10 A and the outer coil carries a current...
College Physics
Two long, parallel wires separated by 50 cm each carry currents of 3.0 A in a horizontal direction. Find the magnetic field midway between the wires if the currents are in the same direction. B= T Find if they are in opposite directions. B= T
College Physics
A charged particle travels undeflected through perpendicular electric and magnetic fields whose magnitudes are 4000 N/C and 20 mT,respectively. Find the speed of the particle if it is a proton. v= m/s Find the speed of the particle if it is an alpha particle. (An alpha particl...
College physIcs
An electron travels at a speed of 4.0×104 m/s through a uniform magnetic field whose magnitude is 1.4×10−3 T. What is the magnitude of the magnetic force on the electron if its velocity and the magnetic field are perpendicular? F= N What is the magnitude of t...
college algebra
'A mason can build a wall in one-half the time it takes an apprentice. Together they build the wall in 12 hours. How long would it take the apprentice working alone to build the wall?' This needs to be worked using a table. The column headings are 'Time Alone',...
college
Suppose that the number of cars, C, on 1st Avenue in a city over a period of time t, in months, is graphed on a rectangular coordinate system where time is on the horizontal axis. Further suppose that the number of cars driven on 1st Avenue can be modeled by an exponential fun...
college physics
In a pickup game of dorm shuffleboard, students crazed by final exams use a broom to propel a calculus book along the dorm hallway. If the 3.5 kg book is pushed from rest through a distance of 0.88 m by the horizontal 25 N force from the broom and then has a speed of 1.63 m/s,...
College Physics
copute the power output of a machine that lifts a 500 kg crate through a height of 20.0 m in a time of 60.0 s . book answer is 1.63 kw can you help me plug the numbers into the correct formula to use. then i should have no problem doing the other problems i have to do. thanks
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