# hey guys, i follow you up to the point of intergrating the final line. How would I intergrate [x^-2.e^-x] dx thx

49,088 questions, page 263
1. ## chemistry

In the following experiment, a coffee-cup calorimeter containing 100 mL of H20 is used. The initial temperature of the calorimeter is 23.0 C . If 3.60 g of CaCl2is added to the calorimeter, what will be the final temperature of the solution in the

asked by Colin on October 20, 2011
2. ## chemistry

Given these standard reduction potentials at 25oC: Cr3+ + e- -> Cr2+ (E1^o = -0.407V) Cr2+ + 2e- -> Cr(s) (E2^o = -0.913V) Determine the standard reduction potential at 25oC for the half-reaction equation: Cr3+ + 3e- -> Cr(s) This seems like a really

asked by Bobz on March 21, 2014
3. ## Physics

Given the following about a spring: mass = 20.0 kg height initial = 5.25 m (above the ground) height final = 2.17 m (above the ground with the mass attached) delta y initial = 0.00 m There are several questions I must answer from this. 1. What is the value

asked by George on October 29, 2016
4. ## chemistry

If 150.0 g of copper at 100.0 C and 125.0g of liquid water at 35.0 C are mixed in an insulated container, what is the final temperature of the mixture? Ccu= .39 J/g C Cwater= 4.184 J/g C Did i do this correct: 150.0 x 100.0 x .39 = 250 J 125.0 x 35.0 x

asked by miyabi on November 30, 2015

You dissolve 6.55 g of potassium nitrate in enough water to make a 250. ML solution. 1.What is the molarity of this solution?answer:0.0262 2.If you took out 15.0 mL of this solution, how many moles of potassium nitrate would you have?answer:0.393 3. What

asked by cateye on April 23, 2012
6. ## Thermodynamics

A rigid insulated closed tank consists of two compartments of equal volume separated by a valve. Initially one contains air at 145 psia and temperature of 130 F, while second is completely empty(vaccum). the valve is opened and remains so until both are in

asked by spencer on March 15, 2010
7. ## MEDICAL CODING AND BILLING

THIS IS A QUESTION FROM PENN FOSTERS FINAL EXAM 40976200 NUMBER 4 ON PART B. YOU'RE AN INPATIENT CODER IN A HOSPITAL. YOU'VE JUST CODED A MEDICARE PART A RECORD WITH A DIAGNOSTIC-RELATED GROUP (DRG) REIMBURSEMENT OF \$12000. YOU NOTICE IN THE HOSPITAL'S

asked by JULES on November 3, 2010
8. ## French Check Ms. Sue

Please check this. Thank you! 1. France is a country in Asia. true false*** 2. There are many countries in Africa where French is one of the principal languages of the people. true false 3. Québec, in Canada, is a French speaking part of Canada. true***

asked by Mame on June 6, 2016
9. ## Math

You have a mean score of 86 on 9 quizzes. The teacher decides to drop your lowest quiz score to determine your final quiz mean. After dropping the lowest score, your mean score on the 8 remaining quizzes is 88. What score was dropped?

asked by David on January 29, 2009
10. ## Physics

A thermos contains 150cm3 of coffee at 85° C. To cool the coffee, you drop two 10g ice cubes into the thermos. The ice cubes are initially at 0° C and melt completely. What is the final temperature of the coffee? Treat the coffee as if it were water.

asked by Chase on November 9, 2012
11. ## physics

A railroad car with a mass of 2.35 × 104 kg moving at 3.90 m/s collides and joins with two railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.25 m/s. a) What is the final speed

asked by Jacqueline on March 31, 2013
12. ## physics

a glider of length 10.00 cm slides down an air track. It passes through the lower photogate in .50 sec. A little later it passes through the lower photogate 100.00 cm down the track, in .25 sec. Calculate initial velocity,final velocity, and acceleration.

asked by bill on March 9, 2011
13. ## chemistry >< ¢¾

Heat energy is released when anhydrous calcium chloride is dissolved in water. CaCl2 (s) ¡æ CaCl2 (aq) + 83 kJ Calculate the final temperature when 0.01 mol of calcium chloride is dissolved into 100 mL of water initially at a temperature of 18.0 degree

asked by Samantha on September 8, 2011
14. ## Chemistry

To determine the concentration of 10.31mL of an unknown solution of a monoprotic acid, it is titrated with 0.172M sodium hydroxide. The initial reading on the buret of sodium hydroxide is 2.19mL. The final reading is 13.41mL. What is the concentration of

asked by Alex on August 26, 2015
15. ## Physics

A railroad car with a mass of 2.33 × 104 kg moving at 3.71 m/s collides and joins with two railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.44 m/s.What is the final speed of

asked by Chris on January 19, 2015
16. ## social studies

PLEASE HELP FAST. i have a social final tmr. and if i don't get 50 questions right im gonna fail socials 9!!! does anyone noe a really good website for the entire socials 9 notes? the textbook im using is called "crossroads" PLEASE HELP. FAST !! i cannot

asked by Anonymous on June 14, 2010
17. ## math

1: Connor drives an an eighteen-wheeler. It cost Conner \$456 to fill the truck up with diesel fuel. If diesel fuel cost \$3 a gallon, how many gallons of fuel were bought? a: 148 b: 152 c:156 d:164 2: The temperature started at 35°F. If the temperature

asked by monokumaa11037 on May 11, 2019
18. ## statistics

A vertical line is drawn through a normal distribution at z = 0.50, and separates the distribution into two sections. What proportion of the distribution is in the larger section? a. 0.6915 b. 0.3085 c. 0.1915 d. 0.3830

asked by Robbie on October 14, 2012
19. ## math HELP

Identify the missing info that would be necessary to solve the following which type of graph would be more appropriate to represent the number of inches of rain during a 6 - week period a bar graph or a line graph?

asked by daniel on October 3, 2013
20. ## calculus

Please help with this question. I have a general solution to a differential equation of 18y^3/2= TOP LINE OF FRACTION is 2(x^2-6x+23)^3/2 and this is divided by 3. What is the particular solution for which y=2 when x=1. Then I need this particular solution

asked by Tony on May 11, 2011
21. ## Physics

A child is hanging at the midpoint of a string and the string form an angle of 15 degrees with horizontal line. What's the force in the string? The answer is 850N. Who can show me the solution???

asked by Greta on September 24, 2012
22. ## Pre-Calc (Point of Inter.)

A diagonal of a cube is a line segment of maximum length whose endpoints are vertices of the cube. To the nearest degree, what is the angle of intersection Ѳ, 0 < Ѳ

asked by Kat on September 28, 2014
23. ## English

Is this line from A Contemplation Upon Flowers by Henry King: "How often have I seen you at a bier and there look fresh and spruce" A. Situational Irony B. Dramatic Irony C. Verbal Irony I believe the answer is A. Am I correct?

asked by T on May 25, 2018
24. ## physics

Water is to be pumped to the top of a skyscraper, which is 1270 ft high. What gauge pressure is needed in the water line at the base of the building to raise the water to this height?

asked by Sam on May 21, 2012
25. ## math

What kind of graph would you use to show the number of twins born each year from 1997 to 2002? Explain your answer I don't know if it would be a bar graph or line graph.

asked by SUE on March 13, 2014
26. ## English

I forgot to include the following statements. I really hope you can correct them as well. 8)The wind goes away from her house or the wind left her house? 9)The omniscient narrator can be divided into obtrusive and unobtrusive (is it correct? Or would be

asked by Franco on March 10, 2010
27. ## Computers

Help guys..here is what I need.. and unfortunately I need this in like 2 hours...my computer crashed with all my work so please anyone help... Write a console application that has a furniture and appliance dealership needs you to create a sales screen to

asked by Kevin on May 6, 2013
28. ## American History

1.Get to Know Your Member of Congress Resources: Get Connected: The Organization of Congress on p. 373 of Government in America Follow the instructions in the text closely and use the Web sites provided to search for committee jurisdiction and to find your

asked by Sueann on November 19, 2009
29. ## socialstudies(5Qs)

hi guys could you check my social studies answer thanks.oh and if there wrong could you give me the right answer and some information. ---------------------------------------- 1.The climate throughout most of the united states is__________. A.tropical

asked by mat on November 4, 2013
30. ## math Study guide

I need help. I got all of these questions out of 50 wrong. 6-10 were not given. 1. Which of the following is an example of independent events? A-rolling a number cube and flipping a coin B-drawing marbles from a bag without replacement after each draw

asked by Anonymous on June 5, 2014
31. ## Macbeth

Is it true that Macbeth only wishes that his wife be cured so that she will cease to sleepwalk and talk in her sleep and that He fears that someone who hears her talking will figure out that he is guilty of the killing of Duncan. If it is can you please

asked by Moi on April 20, 2009
32. ## Macbeth

Is it true that Macbeth only wishes that his wife be cured so that she will cease to sleepwalk and talk in her sleep and that He fears that someone who hears her talking will figure out that he is guilty of the killing of Duncan. If it is can you please

asked by Anonymous on April 20, 2009
33. ## HR

16. Which of the following is not a measure for an HRM audit for staffing? A. Timeliness of referring qualified workers to line supervisors B. Treatment of applicants C. Fairness of existing job evaluation system in assigning grades and salaries D.

asked by Blue on July 22, 2018
34. ## math

The displacement (in centimeters) of a particle moving back and forth along a straight line is given by the equation of motion s = 4 sin(πt) + 2 cos(πt), where t is measured in seconds. (Round your answers to two decimal places.) (a) Find the average

asked by Anonymous on September 14, 2018
35. ## Math

T 1971 1982 1992. 2003 P. 4. 5. 6. 7 Find slope of each line segment connecting consecutive data points from the table M1= M2= M3= Does the polynomial 0.09t-175 give a good estimate for the world population in year t?

asked by Danielle on December 4, 2017
36. ## Phase diagram

Question: A solid substance has a vapor pressure of 800 mm Hg at its melting point (80 degrees C). Describe how the solid behaves as temperature is raised from room temperature to 80 C while the atmospheric pressure is held constant at 760 mm Hg. I think

asked by Sheryl on November 12, 2006
37. ## chem

thanks Is sodium nitrate polar or nonpolar and how do I figure this out? thanks You need to consult your text or your notes to see what you teacher calls ionic and what s/he calls covalent. Generally, a difference in electronegativity (you can look up the

asked by Filmore on April 19, 2007

Imagine you have been asked to make FOUR presentations on "Effective Presentation Skills" for FOUR very different audiences. What would be your presentation objective for each group? Write a 1-sentence objective statement (also known as "purpose

asked by Bridgett on August 8, 2007
39. ## Education

Hello, I need help I have to make my own personal code of Ethics following the NAEYC guidelies and also a statement of commitment as I would have to be able to follow for the classrooms and field experience. I am trying to find somewhere where I can look

asked by Chris on January 21, 2007

What is the net present value (NPV) of this replacement project? The old equipment has a book value of \$200,000 (year 0) and a current salvage value of \$300,000 (year 0). It is being depreciated on a straight-line basis. It has four more years of

asked by Herb on April 11, 2010
41. ## Finance

What's the net present value (NPV) of this replacement project? The old equipment has a book value of \$200,000 (year 0) and a current salvage value of \$300,000 (year 0). It is being depreciated on a straight-line basis. It has four more years of

asked by Herb on April 11, 2010
42. ## Chemistry

Ok ive been working on this problem for hours now, can you please tell me if i am correct? Thank You! A gas occupies 340mL at 273 K and 610 torr. What final temperature would be required to increase the pressure to 1 atm, the volume being held constant?

asked by Desiree on March 19, 2012
43. ## Physics

A railroad car (m=3000 kg) is coasting along a level track with an initial speed of 22 m/s. A load of coal is then dropped into the car as sketched in the figure below. (a) What are the velocities of the car and the coal before the collision along the x

asked by David on October 27, 2012
44. ## Physics

An alloy of mass 225g is heated to 550C. It is quickly placed in 450g of water at 12C. The water is contained in an aluminum calorimeter cup of mass 210g. The final temperature of mixture is 31.7C. Specific heat of aluminum is 0.215 cal/gC. Find the

asked by Tsunayoshi on February 3, 2014
45. ## Physics

A piece of copper ball of mass 20 gram at 200 degree celcius is place in a copper calorimeter of mass 60 gram containing 50 grm of water at 30 degree celcius, ignoring heat loses calculate the final steady temperature of the mixture. ( S. H. C of water is

asked by Anonymous on January 17, 2016
46. ## physics

A car is speeding at 25 m/s in a school zone. A police car starts from rest just as the speeder passes and accelerates at a constant rate of 5 m/s2. How fast is the police car traveling when it is 25 m behind the speeding car? I honestly don't know where

asked by TiffTaff on January 25, 2015
47. ## Physics

A 3.90×10^2kg cube of ice at an initial temperature of -18.0degreesC is placed in 0.480kg of water at 41.0degreesC in an insulated container of negligible mass. Calculate the change in entropy of the system. I found the equilibrium temperature to be at

asked by Melissa on December 7, 2010
48. ## Physics

Given the following about a spring: mass = 20.0 kg height initial = 5.25 m (above the ground) height final = 2.17 m (above the ground with the mass attached) delta y initial = 0.00 m There are several questions I must answer from this. 1. What is the value

asked by George on October 29, 2016
49. ## Longitudinal wave problem (tunning fork)

I have this for a physics question A 320 hz tuning fork vibrates for 8s. During this time each tine of the fork travels a total distance of 10.3 cm. first I multiplied 320 by 8.( 2 560) then i divided 10.3 by 2 560. then i divided that answer by 4 since

asked by ME on May 10, 2009
50. ## western michigan university

2.5grams of pecan nut was turned to heat up 100grams of water at 24 degrees Celsius. The final temperature after all the pecan oil in the nut was completely consumed was 70 degrees Celsius. Calculate the (a) energy released by the 2.5 gram pecan in

asked by lorena on December 6, 2012

Kyoka holds the world record for earning the most points in this arcade game with a high score of 256 points. If Kyoka did not miss any of the 114 shots she took to set this record, what percent of those shots were made during the final 10 seconds of the

asked by Anonymous on January 13, 2011
52. ## Science ( physics )

A balloon is rising with a velocity of 4.9 m/sec releases an object from height of 96 m. a) How long after its release will the object reach the ground? b) what is the velocity of the object as it hits the ground? The object has in intial vertical

asked by Margie on August 1, 2006
53. ## sst

toothpaste shampoo mobile and telivision are four products used in daily life. create your own brand. make an advertisment to get your friends to buy this brand . also add a slogen a jingle or a catchy line.

54. ## Calculus

A particle moves along line segments from the origin to the points (3, 0, 0), (3, 3, 1), (0, 3, 1), and back to the origin under the influence of the force field F(x, y, z) = z2i + 5xyj + 4y2k. I have tried multiple times to solve this problem but the

asked by Jessica on December 8, 2014
55. ## calc

An ice hockey puck is sliding along a straight line so that its position is s(t) = t3 3 + t2 + t − 7/3 . At which times t is the velocity of the puck increasing? I tried deriviting the equation then solving for t and plugging in numbers to see if it was

asked by hannah on October 15, 2013
56. ## organic chem

Write an equation representing the oxidation of each of the following. I'm on 3-hexanol. And this is what I got -> [o] 3-hexanal and further oxidation I know you get 3-hexananoic acid. I don't know how to make this in the line formula. Can I put the -OH

asked by meghan on February 15, 2013

i have to write a cheer with my name it, and its supposed to be funny. 3, 4, 5 lines? my names kaitlyn, duh. so can you help? Why don't you end each line with a word that rhymes with Kaitlyn? Words that come to mind are begin, win, pin.

asked by Kaitlyn on August 14, 2007
58. ## Math

Identify the sampling method. You want to determine the number of text messages students at your school send in a month. You go to the cafeteria and randomly ask students as they come out of the lunch line. A. Random B. Systematic C. Stratified D. None of

asked by Lana on January 14, 2016
59. ## Physics

A sprinter can accelerate with constant acceleration for 2.70 s before reaching top speed. He can run the 100-meter dash in 10 s. What is his speed as he crosses the finish line? Please show me all the steps to solving this problem. Thanks

asked by Beth on October 5, 2011

I have to right an iambic pentameter poem on a pilgrim such as a plumber or a goat farmer. I've been working on it for days but just came to the assumption that I CAN'T RIGHT POEMS. I've tried using quotes from Dantes inferno and rewording them but it

asked by Giuseppe on February 2, 2010
61. ## Physics

6) The relationship between force and acceleration is given by Newton’s 2nd Law: Fnet = ma. In this case this becomes:          Fapp – Ff = ma.

asked by Al on October 30, 2013
62. ## Biology

If the line for 60 captured is extended downward to zero percent error, what fraction of the total population would this represent? (Compare the actual number in the can to the extrapolated number on your graph.) What more information do I need to provide

asked by Robin on July 15, 2012
63. ## physics check

A straight line 1.8m long carries a current of 13A and make an angle of 15º with a uniform magnetic field B=1.5T Calculate the magnetic force on the wire. Do we use F=I×L×B×sin in order to solve or no

asked by angy on May 31, 2016
64. ## language arts

she needed a hook a line that would make the audience feel singers isolation. Q. what is the meaning of the word isolation as it is used in this sentence A. being alone b. being angry c. being restless d. being confused i don't understand so can You Give

asked by sammi on April 10, 2013

I am not understanding this question and I have read the chapter many times. Please help. given the function of f(x)=4x-8 a. find the the rate of change between the stated values for x:5 to 7 b. find the equation of a secant line containing the given

66. ## Physics

In a hydraulic lift, the maximum gauge pressure is 16.70 atm. If the diameter of the output line is 24.6 cm, what is the heaviest vehicle that can be lifted? The answer is 80400 N. How do I get this answer? Isn't weight measured in kg? Thank you in

asked by James on July 2, 2012
67. ## ALGEBRA

The equation y=12x+5 shows the total coat for ordering tickets on the phone for a certain outdoor concert. if the tickets are \$12 each, & there is a one time service fee of \$5, can the slope of this line be thought of as a rate?? Please explain this.

68. ## math

the equation y=12x+5 shows the total cost for ordering tickets on the phone for a certain outdoor concert. Tickets are \$12 each and there is a one time service fee of \$5. Can slope of this line be thought of as a rate? explain

asked by Kay Kay on December 15, 2009
69. ## physics help

In this experiment you will be asked to plot a graph of mhg versus ac and fit your data to a straight line. What is the slope of the graph equal to in terms of the rotating mass MR? (Use any variable or symbol stated above as necessary.)

asked by Sarah on November 2, 2011
70. ## MATH

The equation y=12x+2 shows the total cost for ordering tickets on the phone for a certain outdoor concert. Tickets are \$12 each, and there is a one-time service fee of \$5. Can the slope of this line be thought of as a rate? Explain.

asked by Anonymous on September 15, 2009
71. ## math

You are given the four points in the plane A=(−1,−8), B=(4,5),C=(8,−2), and D=(12,2). The graph of the function f(x)f(x) consists of the three line segments AB, BC and CD. Find the integral ∫12−1f(x)dx by interpreting the integral in terms of

asked by Anonymous on November 7, 2017
72. ## Calculus

A particle moves along line segments from the origin to the points (3, 0, 0), (3, 3, 1), (0, 3, 1), and back to the origin under the influence of the force field F(x, y, z) = z2i + 5xyj + 4y2k. I have tried multiple times to solve this problem but the

asked by Katie on December 8, 2014
73. ## Math

Your search for Determine the number of square meters of vinyl needed to line the inside of a right rectangle swimming pool. The pool is 7m long, 4m wide, and has a uniform depth of 2.5m returned no results.

asked by Silly on November 28, 2011

Which of the following represents the lowest risk in terms of capital budgeting? Adding to a product line Buying new equipment for an established market Repairing old machinery Introducing a new product in foreign markets

asked by Anonymous on June 1, 2010
75. ## statistics

A food snack manu. samples 15 bags of pretzels off the assembly line and weighed their contents. If the sample mean is 10.0 and the sample standard deviation is .15, find the 95% confidence interval estimate for the true mean.

asked by Kelly on January 3, 2013
76. ## physics

A thin uniform stick having a mass of 0.680 kg and a length of 1.50 m is at rest, hanging vertically from a strong, fixed hinge at the uppermost end of the stick. The stick is free to swing back and forth in an Up-Down-East-West plane. Suddenly, the

asked by HALP on November 30, 2012
77. ## math

You need to choose a long distance telephone service for your business. The two options available in your area are Call Me and Trans Talk. Call Me charges a \$5.95 monthly service fee and \$.08 per minute used. Trans Talk charges a \$12.95 monthly service fee

asked by Jesse on May 22, 2010
78. ## Calculus

A man starts walking north at 4 ft/sec from point P. Five minutes later a woman starts walking south at 5 ft/sec from a point 500 ft due east of P. At what rate ae the people moving apart 15 minutes after the woman starts walking? Draw a diagram. 1) What

asked by Lauren on April 11, 2013
79. ## Finance ( Need help )

TexMex Food Company is considering a new salsa whose data are shown below. The equipment to be used would be depreciated by the straight-line method over its 3-year life and would have a zero salvage value, and no new working capital would be required.

asked by Alexis on July 30, 2009
80. ## Precalculus check answers help!

1. Which expression is equivalent to cos 2theta for all values of theta ? cos^2 theta – sin^2 theta ~ cos^2 theta – 1 1 – 2 sin^2 theta 2 sin theta cos theta 2. Use a half–angle identity to find the exact value of sin 105°. -1/2(sqrt)(2 + Sqrt3)

asked by Kelsey on May 28, 2012
81. ## help.....

my writing needs improvment and I was wondering what I can do to improve it? There are many good things you can do to improve your writing. Here are some suggestions: 1. Keep a journal. This is not a diary, but a journal. The difference is that in a

asked by my writing is terrible on September 5, 2006
82. ## Chemistry

Metal Specific Heat (J/g-C) Al (s) 0.900 Au(s) 0.129 Cu(s) 0.385 Fe(s) 0.444 Hg(l) 0.139 H2O(l) 4.184 C2H5OH(l) 2.46 A piece of metal at a temp of 95.0oC and a mass of 67.0 g is dropped into a beaker of water containing 100 g at a temp. of 30.0oC. If the

asked by christine on October 24, 2010
83. ## Laxy - English

Most children are familiar with Dr. Seuss and "Green Eggs and Ham." You could use some of the catchy phrases there. Here are some children's songs about food to give you ideas. Select a tune they all know and make up some lines with the vocabulary you want

asked by SraJMcGin on April 23, 2009
84. ## French

I am writing a narrative with that involves multiple verbs in the PC/l’imparfait within the same sentence. I suspect there are special procedures you follow when conjugating in this situation, but I don’t remember what. I remember something about using

asked by Eleanor on February 24, 2011
85. ## English (spelling and grammar)/General

I posted my answers to questions that were asked of me. Can someone read over my responses and make any corrections that you see fit? ... Thank you! A. I am currently working at Mohegan Sun as a Wardrobe Attendant. A. I am looking for law enforcement

asked by Manny to ANYONE on January 29, 2008
86. ## Chemistry

A student performs a crystallization on an impure sample of biphenyl. The sample weighs 0.5 g and contains about 5% impurity. Based on his knowledge of solubility the student decides to use benzene as the solvent. After crystallization, the crystals are

asked by Nina on October 8, 2008
87. ## Physics

An object travels with a constant acceleration for 10 s. The vectors in Figure 3-41 represent the final and initial velocities. carefully graph the x component of the velocity versus time and the y component of the acceleration versus time, in a Vx vs t

asked by Alyssa on September 11, 2015
88. ## physics

A 41.2 kg student runs down the sidewalk and jumps with a horizontal speed of 4.36 m/s onto a stationary skateboard. The student and skateboard move down the sidewalk with a speed of 4.12 m/s. a. Find the mass of the skateboard (in kg) b. How fast would

asked by Anonymous... on November 17, 2011
89. ## dilution

a 46.2 mL, .568 M calcium nitrate soln is mixed w/ 80.5 mL of 1.396 M calcium nitrate soln. whats the concentration of final soln? mols 1 + mols 2 = total mols mols/volume in L = M OH! thanks! i got the right answer, 1.09 M.

asked by christine on July 18, 2007
90. ## chemistry

a 60.0 g sample of chromium at 82.0 degrees celsius was place in 80.0 g of water. Assume there is no loss of heat to the environment. What is the final temperature of the water and chromium? The initial water temperature was 24.0 degrees celsius

asked by Anonymous on November 12, 2013
91. ## Physics

An object initially rotating at an angular speed of 1.6 rad/sec turns through 30 revolutions during the time it experienced an angular acceleration of 0.32 rad/s^2. a) For how much time did the acceleration last? b) What was the final angular speed?

asked by Anonymous on November 7, 2016
92. ## chemistry

A 2.00 gram sample of Copper (II) acetate produced 2.48 grams of a Copper (II) Formate Hydrate. After heating the sample the final mass of the Copper (II) Formate was 1.69 grams. What was the degree of hydration for the Copper (II) Formate?

asked by Jesus on October 6, 2014
93. ## Physics

An object is placed 11.3 cm to the left of a diverging lens of focal length -6.51 cm. A converging lens of focal length 11.6 cm is placed a distance of d to the right of the diverging lens. Find the distance d that places the final image at infinity.

asked by Rachel on September 11, 2015
94. ## help with chem biochem

Ethanol + NAD+  acetaldehyde + NADH + H+  You have a 1 ml solution containing 100 uM Ethanol, and 1 mM NAD+. You then add 1 mg of alcohol dehydrogenase. Assume all of the ethanol gets converted to acetaldehyde.  a) What will the final concentration

asked by tracy on September 11, 2013
95. ## Speech

Please rephrase the following sentences into a more simple manner. I need to give a presentation and i would like to write this out simpler. Thank you guys Research of soil erosion is difficult for several reasons, but particularly because soil erosion is

asked by alex on May 1, 2013
96. ## English

1. He narrowly escaped being drowned. 1-1. He narrowly escaped from being drowned. 1-2. He escaped from the thief. 1-3. He tried to escaped from the angry lion. 1-3. He could not escape from his father. 2. He dropped the ball-point pen from the table. 2-1.

asked by John on November 24, 2008
97. ## Physical Science

Determine how long it will take given the scenario below (in time and in distance) to react to the car in front of you. Assume that the car in front of you takes 3 seconds to change speeds. Reaction time 1.6 seconds Speed: 75 mph Initial velocity: 33.53

asked by Liz on April 12, 2017
98. ## Physics

A person slides down a slope. At the end of their slide they are brought gently to rest by a large spring. Friction on the slope cannot be ignored. Draw an energy bar chart for this situation. Define your system any way you want, but clearly state how you

asked by Daniel on December 9, 2015
99. ## chemistry

hey drbob222 do you think you could help me out with this lab. Lab: Electrolytic Cells Purpose: The purpose of this experiment is to test the method of stoichiometry in cells. Materials: balance steel can tin electrode power source wire lead (x2) tin (II)

asked by unknown on April 14, 2008
100. ## Social Studies

In this excerpt from his “Report on the Destruction of the Indies,” the priest Bartolomé de Las Casas describes what happened to the American Indians on Hispaniola. Read the passage and then answer the question. “[T]hey assigned them [the American

asked by Kate on March 13, 2019