# How to figure out the temperature of a lake using x for the feet or the Depth and for the degrees Celsius use (3900x+1000)/(3x^2+100) with the answer of the degrees celsius being 8.44 looking like 8.44=(3900x+1000)/(3x^2+100) i need the depth

34,877 questions, page 253
1. ## math

ice in a refrigerator melts at rate of 3 kg per hour. the temperature outside is 27°c. find the minimum power output of a motor used to drive the refrigerator,which just prevents ice from melting. latent heat of ice = 80 cal/g,J=4.2 joule/cal, 1 h.p = 746

asked by rahul on March 29, 2017
2. ## Chemistry

A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.87 kg m-3. Under these conditions the total surface area of the balloon is 0.87 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x 10-9 m2s-1.

asked by mangozier on December 14, 2012
3. ## chemistry

A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.5 kg m-3. Under these conditions the total surface area of the balloon is 0.72 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x 10-9 m2s-1.

asked by student on December 14, 2012
4. ## Science (2nd Try)

To determine the boing point of a liquid, a student heats 10 mL of the liquid in a test tube and records the temperature every minute for 20 minutes. In this example, time is the what? The choices are: Independent variable dependent variable hypothesis

asked by Jane on May 23, 2013
5. ## Physics

A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.35 kg m-3. Under these conditions the total surface area of the balloon is 0.88 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x 10-9 m2s-1.

asked by JoeBob on December 15, 2012
6. ## Chemistry

Approximately 1.5 10-3 g of iron(II) hydroxide, Fe(OH)2(s) dissolves per liter of water at 18°C. Calculate Ksp for Fe(OH)2(s) at this temperature. This is what I've done: 1.5x10^-3 g Fe(OH)2/L x 1mol Fe(OH)2/89.863g Fe(OH)2 = 1.669x10^-5 M Fe(OH)2 Fe(OH)2

asked by Jakob on May 25, 2010
7. ## CHEM

A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.43 kg m-3. Under these conditions the total surface area of the balloon is 0.68 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x 10-9 m2s-1.

asked by Jaigaon on December 15, 2012
8. ## physics

A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.72 kg m-3. Under these conditions the total surface area of the balloon is 0.17 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x 10-9 m2s-1.

asked by Anonymous on December 16, 2012
9. ## chemistry

A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.92 kg m-3. Under these conditions the total surface area of the balloon is 0.26 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x 10-9 m2s-1.

asked by asd on December 15, 2012
10. ## physics

A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.72 kg m-3. Under these conditions the total surface area of the balloon is 0.17 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x 10-9 m2s-1.

asked by Anonymous on December 16, 2012
11. ## College Chemistry

A 86.3mL sample of water is initially at 17.4 degC. How many kilojoules (kJ) of heat must be added to raise the temperature of the water to 31.8? The specific heat capacity of water is 4.184 J/g.degC. How do I set this up to find the answer. Really

asked by Matthew on June 14, 2017

1) The reaction A + B + C = products has a rate law rate = k times A times C squared. Which of the following will result in an increase in the rate constant for the reaction? #1 - increasing the temperature #2 - adding a catalyst #3 - doubling the

asked by Hannah on February 19, 2012
13. ## science

A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.23 kg m-3. Under these conditions the total surface area of the balloon is 0.46 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x 10-9 m2s-1.

asked by fatine on December 16, 2012
14. ## Science

To determine the boing point of a liquid, a student heats 10 mL of the liquid in a test tube and records the temperature every minute for 20 minutes. In this example, time is the what? The choices are: Independent variable dependent variable hypothesis

asked by Jane on May 22, 2013
15. ## Chemistry

A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.35 kg m-3. Under these conditions the total surface area of the balloon is 0.88 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x 10-9 m2s-1.

asked by JoeBob on December 15, 2012
16. ## Problem

A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.92 kg m-3. Under these conditions the total surface area of the balloon is 0.26 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x 10-9 m2s-1.

asked by asd on December 15, 2012
17. ## science

A 30.0 g sample of water at 280. K is mixed with 50.0 g of water at 330 K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings. Remember that the heat gained by the cooler water is equal to the heat lost by the warmer

asked by Lilian on April 22, 2015
18. ## chemistry

A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.35 kg m-3. Under these conditions the total surface area of the balloon is 0.57 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x 10-9 m2s-1.

asked by anita on December 15, 2012
19. ## Chemistry

A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.3 kg m-3. Under these conditions the total surface area of the balloon is 0.33 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x 10-9 m2s-1.

20. ## physics

A physicist at a fireworks display times the lag between seeing an explosion and hearing its sound, and finds it to be 0.800 s. (a) How far (m)away is the explosion if air temperature is 22.0°C, neglecting the time taken for light to reach the physicist?

asked by Justin on July 31, 2013
21. ## chemistry

A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.66 kg m-3. Under these conditions the total surface area of the balloon is 0.88 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x 10-9 m2s-1.

asked by meshy on December 16, 2012
22. ## Chemistry

What is the final temperature, in oC, after a 27.0 g piece of ice, at 0oC, is placed in a styrofoam cup with 120 g of water initially at 70.5oC. Assume there is no transfer of heat to or from the surroundings. The specific heat of water = 4.184 JK-1g-1 The

asked by Mike on October 2, 2014
23. ## Chemistry (balloon)

A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.3 kg m-3. Under these conditions the total surface area of the balloon is 0.33 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x 10-9 m2s-1.

asked by T on December 15, 2012
24. ## Chemistry

A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.3 kg m-3. Under these conditions the total surface area of the balloon is 0.33 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x 10-9 m2s-1.

asked by T on December 16, 2012
25. ## Chemistry 12

The complete combustion of 1.00mL of octane increases the temperature of 250.00g of water by 22.7 degrees Celsius. The density of octane is 0.70g/mL. What is the efficiency of the octane in heating the water? I attempted this question and I have -400

asked by KnowsNothing on February 4, 2013
26. ## chemistry

A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.55 kg m-3. Under these conditions the total surface area of the balloon is 0.78 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x 10-9 m2s-1.

asked by hk on December 17, 2012
27. ## Physics

The leg and cast in Figure P4.18 weigh 290 N, with the center of mass as indicated by the blue arrow in the diagram. The counterbalance w2 weighs 125 N. Determine the weight w1 and the angle α needed in order that there be no force exerted on the hip

asked by Anon on September 16, 2012
28. ## Trigonometry

Google this: 5.1 using fundamental identities Comcast Click and open the first result that appears on your search (Result= PDF Document). Textbook pages will appear and go to page 383 on problem #129. The directions will mention "Solve the right triangle

asked by AwesomeGuy on February 10, 2013
29. ## Reiny

Just a question for you. How do you remember all this. I'm wondering because I'm in precalc and I always seem to forget how to do the problems a couple weeks after the test. You seem to know everything without even hesitating. Side note- I found this site

asked by Dustin on January 11, 2015

You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be 2.070E+7 m and its rotation to be 19.8 hours. You have previously determined that the planet orbits 1.590E+11 m from its star with

asked by Me on November 30, 2011

8. The table below shows the relationship between the number of days a plant grows and its height. Which shows a scatter plot of the data and a description of the trend? # of Days Plant Height (cm) 0 5 2 7 4 10 5 13 6 14 7 16 8 17 (1 point) scatter plot A

asked by cameron on May 20, 2015
32. ## economics

An automobile company, NISSAN, has a temporary cash surplus and lends its funds overnight through a repurchase agreement to a government securities dealer, earning \$55,600 in interest income when the RP loan rate stood at 5.70 percent. What was the size of

asked by Therese on October 29, 2010
33. ## calculus

Suppose that 430 ft of fencing is used to enclose a corral in the shape of a rectangle with a semicircle whose diameter is a side of the rectangle. (In the figure below, the blue outline represents the fencing.) Find the dimensions of the corral with

asked by Help asap!! plz on October 28, 2010
34. ## physics

Three particles, each of mass 3.0 kg, are fastened to each other and to a rotation axis by three massless strings, each 0.360 m long, as shown in the Figure. The combination rotates around the rotation axis with an angular velocity of 19.0 rad/s in such a

asked by Katie on March 16, 2012
35. ## CALC HARD...

Suppose that 430 ft of fencing is used to enclose a corral in the shape of a rectangle with a semicircle whose diameter is a side of the rectangle. (In the figure below, the blue outline represents the fencing.) Find the dimensions of the corral with

asked by HELP on October 29, 2010
36. ## CALC HARD...

Suppose that 430 ft of fencing is used to enclose a corral in the shape of a rectangle with a semicircle whose diameter is a side of the rectangle. (In the figure below, the blue outline represents the fencing.) Find the dimensions of the corral with

asked by HELP on October 29, 2010
37. ## Physics

A father pushes horizontally on his daughter's sled to move it up a snowy incline, as illustrated in the figure, with h = 3.9 m and θ = 11°. The total mass of the sled and the girl is 35 kg and the coefficient of kinetic friction between the sled runners

asked by Sandi on December 4, 2010
38. ## math help needed bad

I'm really confused on how to answer this question. Can someone help me to figure this out? Thank you A survey about the student government program at a school finds that of 245 students: -218 like the program -27 students think this program is

asked by Confused on April 1, 2015
39. ## Physic

A father pushes horizontally on his daughter's sled to move it up a snowy incline, as illustrated in the figure, with h = 3.7 m and θ = 18°. The total mass of the sled and the girl is 35 kg and the coefficient of kinetic friction between the sled runners

asked by Thanh on November 18, 2012
40. ## physics

A father pushes horizontally on his daughter's sled to move it up a snowy incline, as illustrated in the figure, with h = 3.4 m and θ = 14°. The total mass of the sled and the girl is 35 kg and the coefficient of kinetic friction between the sled runners

asked by jibinn on October 5, 2010
41. ## physics

The uniform block of width W and height H in the figure below rests on an inclined plane in static equilibrium. The plane is slowly raised until the block begins to tip over. Assume the tipping occurs before the block starts to slide. Find an expression

asked by joy on April 21, 2018
42. ## physics

a bimetallic compound strip of brass and iron is 10cm long at 20C. When heated over a Bunsen burner flame the temperature of the brass rises to 800C and the iron to 750C. Calculate the difference in lengths of the iron and brass. (Ignore the bending

asked by cynthia on April 21, 2009
43. ## PHYSICSSS!

A brass lid screws tightly onto a glass jar at 20 oC. To help open the jar, it can be placed into a bath of hot water. After this treatment, the temperature of the lid and the jar are both 60 oC. The inside diameter of the lid is 8.0 cm at 20 oC. Find the

asked by JT on September 21, 2010
44. ## History

I'm designing my energy transformation for my rube goldberg project, and i can't seem to figure out how to design some of them. How could i represent the american boycott of the moscow olympics, the soviet boycott of the Los Angeles Olympics, the signing

asked by Dani on February 6, 2009

Can anyone help with this question? Now suppose that, starting with the ﬁrst row of seats, the ﬂoor of the seating area is inclined at an angle of Theta = 25 degrees above the horizontal, and the distance that you sit up the incline is x, as shown in

asked by Lisa on April 18, 2012
46. ## physics

Two cars lost in a blinding snow storm are traveling across a large field, each thinking they are on the road, as shown in the figure on the left. They collide. If the distance x is 169 meters and the red car is travelling at 15.8 mph, how fast to the

asked by blah physics on May 22, 2013
47. ## Trig

Can anyone help with this question. Now suppose that, starting with the ﬁrst row of seats, the ﬂoor of the seating area is inclined at an angle of Theta = 25 degrees above the horizontal, and the distance that you sit up the incline is x, as shown in

asked by Lisa on April 17, 2012
48. ## Math Algebra 2

whobatman Please Help?! It might be a little hard but I will upvote if it's right!! The Colossus Ferris wheel debuted at the 1984 New Orleans World’s Fair. The ride is 180 ft tall, and passengers board the ride at an initial height of 15 ft above the

asked by ImJUStin on January 22, 2018
49. ## physics

A 3.56-kg steel ball strikes a massive wall at 10.0 m/s at an angle of θ = 60.0° with the plane of the wall. It bounces off the wall with the same speed and angle (see the figure below). If the ball is in contact with the wall for 0.180 s, what is the

asked by Anonymous on October 14, 2011
50. ## physics

A 3.56-kg steel ball strikes a massive wall at 10.0 m/s at an angle of θ = 60.0° with the plane of the wall. It bounces off the wall with the same speed and angle (see the figure below). If the ball is in contact with the wall for 0.180 s, what is the

asked by Anonymous on October 14, 2011
51. ## Geometry

PLZZZZZ HELP I SUCK AT GEOMETRY Find the area of the following shape. You must show all work to receive credit. Figure ABCDEF is shown. A is located at negative 2, 6. B is located at negative 5, 2. C is located at negative 2, negative 3. D is located at 4,

asked by Hannah on February 3, 2017
52. ## Physics

An Olympic swimming pool is heated and maintained at 30 °C in the winter. It has a volume of 2500 m3, a length of 50 m, and a width of 25 m. During a storm, the pool receives 1 cm of rain over its surface area. If the rain is 15 °C, what will the

asked by Jimmy on December 5, 2010
53. ## PHYSICS

The Trans-Alaskan pipeline is 1300 km long, reaching from Prudhoe Bay to the port of Valdez, and is subject to temperatures ranging from -72°C to +38°C. (a) How much does the steel pipeline expand due to the difference in temperature? (The coefficient of

asked by Sarah on November 14, 2012
54. ## physics

The label on a soft drink states that 15 fl. oz (444 g) provides 170 kcal. The drink is cooled to 11.0°C before it is consumed. It then reaches body temperature of 37°C. Find the net energy content of the drink. (Hint: You can treat the soft drink as

asked by lanre on July 26, 2012
55. ## Intro to Physics

The Trans-Alaskan pipeline is 1300 km long, reaching from Prudhoe Bay to the port of Valdez, and is subject to temperatures ranging from -72°C to +38°C. (a) How much does the steel pipeline expand due to the difference in temperature? (The coefficient of

56. ## physics

two slabs of thickness 10cm and 2ocm are made of rteel and copper respectively.they are in thermal contact with each oth.the far end of the steel is at 100 degrees celcius amd that of copper is at 0 degrees celcius.determine the temperature at the junction

asked by pulie on February 17, 2013
57. ## physics

two slabs of thickness 10cm and 2ocm are made of rteel and copper respectively.they are in thermal contact with each oth.the far end of the steel is at 100 degrees celcius amd that of copper is at 0 degrees celcius.determine the temperature at the junction

asked by pulie on February 17, 2013
58. ## Chemistry

Calcium carbonate, CaCO3(s), decomposes upon heating to give CaO(s) and CO2(g). A sample of CaCO3 is decomposed, and carbon dioxide is collected in a 250 mL ﬂask. After decomposition is complete, the gas has a pressure of 1.3 atm at a temperature of

asked by Veronica on May 5, 2011

10.0 grams of carbon dioxide and 20.0 grams of oxygen are mixed in a 50.0 L container at 30.0 degrees celcius. What is the pressure of this mixture in mm Hg? I defined my variables. so i had Mass=30.0g Volume=50.0L Temperature=303 Kelvin pressure=x. then i

asked by Miley on March 18, 2008
60. ## Chemistry

Two aqueous solutions, both at 25.00°C (100.0 mL of 0.223 M Pb(NO3)2 and 100.0 mL of 0.144 M Na2S), are mixed together in a calorimeter with a Ccalorimeter of 11.8 J/°C. The temperature of the solution increases by 2.40°C. Assuming that the density and

asked by Matt on October 28, 2015
61. ## u of s

A black thin-walled cylindrical can, 10.0 cm in diameter and 20.0 cm tall is filled with water at 100°C and suspended in a 20°C room. Determine the initial rate of heat transfer due to radiation, and the initial rate of change of temperature of the

asked by cz on January 27, 2013
62. ## Chemistry

Acetic anhydride, C4H6O3, has a normal boiling point of 139.8 C (ie, at 1.013 bar) and a standard enthalpy of vaporization of 51. 9 KJ mol^-1. What is the vapour pressure of acetic anhydride at room temperature (298 K) in units of bar? Can someone help me

asked by FS on July 28, 2018
63. ## physics

two slabs of thickness 10cm and 2ocm are made of rteel and copper respectively.they are in thermal contact with each oth.the far end of the steel is at 100 degrees celcius amd that of copper is at 0 degrees celcius.determine the temperature at the junction

asked by pulie on February 17, 2013
64. ## Physics

2. A Sample of V1=6.2L of pure nitrogen gas at 21.85 degrees Celsius and total pressure (gauge plus ambient) of p1=155,700 Pa is heated so that the vrms for the gas molecules increase by 9%. Find the new absolute temperature for the gas, and compute the

asked by Dawna on January 22, 2013
65. ## chemistry

10.0 grams of carbon dioxide and 20.0 grams of oxygen are mixed in a 50.0 L container at 30.0 degrees celcius. What is the pressure of this mixture in mm Hg? I defined my variables. so i had Mass=30.0g Volume=50.0L Temperature=303 Kelvin pressure=x. then i

asked by Miley on March 18, 2008
66. ## college

the relationship between the dosage, x, of a drug and the resulting change in body temperature is given by f(x)=x squared(4-x) for 0 greater than or equal to x greater than or equal to 4. make sign diagrams for the first and second derivate and sketch the

asked by Olivia on February 12, 2009
67. ## chemistry

10mL of 0.500M HCl was added to 50mL of 0.100M NaOH in a coffee cup calorimeter, and the temperature increased from 22.3°C to 23.1°C. What is the experimentally determined enthalpy of neutralization of HCl (in kJ/mol)? The specific heat of water is

asked by Lay on October 19, 2015
68. ## Chemistry

During an experiment, a student adds 0.339 g of calcium metal to 100.0 mL of 2.05 M HCl. The student observes a temperature increase of 11.0 °C for the solution. Assuming the solutions' final volume is 100.0 mL, the density is 1.00 g/mL, and the specific

asked by Thuy on January 28, 2013
69. ## Chemistry

Assuming all volume measurements are made at the same temperature and pressure, how many liters of carbon dioxide gas can be produced when 12.8 liters of oxygen gas react with excess carbon monoxide? Show all of the work used to solve this problem.

asked by Bob on March 29, 2011
70. ## geography

whr do cattles and sheep live like in high altitudes or middle or low altitudes? Cattle need food, water, and a temperature range that does not cook, nor freeze them. So if you choose to examine an altitude, check to see if those are available. If so,

asked by rohit on October 29, 2006
71. ## Chemistry

A 24.0 g sample of ice at -19.0°C is mixed with 118.0 g of water at 85.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings. The heat capacities of H2O(s) and H2O(l) are 2.08 and 4.18 J/g°C, respectively, and the

asked by Rachelle on November 28, 2008
72. ## Chemistry - College

The fuel value of hamburger is approx. 3.7 kcal/g. If a man eats 0.45 lbs of hamburger for lunch and none of the energy is stored in his body, estimate the amount of water that would have to be lost in perspiration to keep his body temperature constant.

73. ## Precalculus

I usually know how to do these types of problems, but the second variable just threw me off balance.. 47. A rancher has 200 feet of fencing to enclose two adjacent rectangular corrals. What dimensions will produce a maximum enclosed area? (the diagram is

asked by Emily on September 14, 2009
74. ## Help

As a project for her early childhood education class, Pauline designs a sample development checklists for gross motor skills for four years old. Pauline should included all but one of the following on her developmental checklists. Which shoudl she not

asked by Jasmine on November 29, 2013
75. ## algebra

A ladder is resting against a wall. The top of the ladder touches the wall at a height of 15 feet and the length of the ladder is one foot more than twice the distance from the wall. Find the distance from the wall to the bottom of the ladder. (Hint: Use

asked by astrid on April 2, 2008
76. ## Org. Chem.

A natural product (MW=150) distills with steam at a boiling temperature of 99 degrees Celsius at atmospheric pressure. The vapor pressure of water at 99 degrees Celsius is 733 mm Hg. A) Calculate the weight of the natural product that codistills with each

asked by CMM on November 10, 2009
77. ## Geometry

A model is made of a car. The care is 5 feet long and the model is 8 inches long. What is the ratio of the length of the car to the length of the model? 8:5 15:2 2:15 5:8 My answer is 2:15

asked by Lost on March 6, 2018
78. ## math

4 boards (1 inch X 8inchs X 6feet} and 3 boards (1 inch X 6 inches x 4feet}= how many board feet? 1 board foot =1 inch by 12 inches x 12inches

asked by Sam on August 9, 2012
79. ## Math

Anais bought 4.5 yards of ribbon. She had 3 feet 8 inches of ribbon left after trimming some curtains. How many inches of ribbon did Anais use to trim the curtains?

asked by Autumn on April 13, 2017
80. ## algebra

Anais bought 2 1/2 yards of ribbon. She had 1 feet 6 inches of ribbon left after trimming some curtains. How many inches of ribbon did Anais use to trim the curtains?

81. ## java

Write a menu driven program that either accepts words and their meanings, or displays the list of words in lexicographical order (i.e. as in a dictionary). When an entry is to be added to the dictionary you must first enter the word as one string, and then

asked by james on July 28, 2011
82. ## computer

Write a menu driven program that either accepts words and their meanings, or displays the list of words in lexicographical order (i.e. as in a dictionary). When an entry is to be added to the dictionary you must first enter the word as one string, and then

asked by james on July 29, 2011
83. ## Physics

A picture hangs on the wall suspended by two strings, as shown in the figure, with θ = 65°. The tension in string 1 is 1.3 N. (a)Is the tension in string 2 greater than, less than, or equal to the tension in string 1? Explain. (b) Verify your answer to

84. ## Algebra-Please check my calculations

Could you please check my answers and help with the ones I can't figure out- 1. Solution to the radical function sqrt(1/2x+1) = 1 is x = 0 True or False I think it is true according to my calculations 2.Solve x = sqrt(8x) 8x = x^2 x^2 - 8x = 0 x(x-8) = 0 x

asked by JayLynne-I had misprint in previous posting on October 19, 2010
85. ## physics

A picture hangs on the wall suspended by two strings, as shown in the figure, with θ = 65°. The tension in string 1 is 1.3 N. (a)Is the tension in string 2 greater than, less than, or equal to the tension in string 1? Explain. (b) Verify your answer to

asked by john on July 12, 2015
86. ## physics

Consider a beam as shown in the figure that is 2 m long and supported by a rope. It is pressed against the wall. There is no friction between the wall and the beam. If the beam has a mass of 2 kg and a sign with a mass of 10 kg is hung off of the end of

asked by Anonymous on July 18, 2013
87. ## Algebra

I have a swimming pool in my backyard and to avoid overcrowding I want to find the maximum area of it so I can figure out how many people I can bring to my pool party that can actually fit in the pool. What is the maximum area of my swimming pool if I have

asked by Carlos on April 30, 2016
88. ## algebra help

My class is doing a unit on the "completing the square method" which is used to solve quadratic equations. I need help understanding this method. It's not making any sense right now! I have two problems and I need to figure out which number completes the

asked by Bailey on January 4, 2007
89. ## math

Hi, I had an SAT question of the day that I cannot figure out. The question is: If it is now 4:00 p.m. Saturday, in 253 hours from now, what time and day will it be? (Assume no daylight saving time changes in the period.) The answer choices are: 1. 5:00

asked by Vanessa on March 25, 2008
90. ## metric system

say you have a level container that is 10cm by 10cm by 10cm. full of water, it would weight one kg. but say you can put no more than 400g into it. say you have only a metric ruler to determine this. how high can you fill the container? my partial answer: i

asked by amy on June 20, 2010
91. ## chemistry

how grams of oxygen can be produced from the decomposition of 100g KClO3? how much iron can be recovered from 25.0g of Fe2O3 how can be produced from 125g Ag2S Figure the precentage composition of the compound. For instance percent of Fe in Fe2O3 =

asked by Beautiful on February 26, 2007
92. ## maths

The given figure shows a rectangle inscribed in an isosceles right triangle whose hypotenuse is10 units long. Express theÃ¢â‚¬â€¹ y-coordinate of P in terms of x.Ã¢â‚¬â€¹ (Hint: Write an equation for the lineÃ¢â‚¬â€¹ AB.)

asked by Anonymous on October 22, 2017
93. ## physics

Astronauts on our moon must function with an acceleration due to gravity of 0.170g . A. If an astronaut can throw a certain wrench 14.0 { m} vertically upward on earth, how high could he throw it on our moon if he gives it the same starting speed in both

asked by mely on January 26, 2011
94. ## physic

can somebody show me how to find the time s step by step. A golfer hits his approach shot at an angle of θ = 46.3°, giving the ball an initial speed of v0 = 39.6 m/s (see figure below). The ball lands on the elevated green, yf = 4.1 m above the initial

asked by joy on February 6, 2018
95. ## Physics

A 500 g block is released from rest and slides down a frictionless track that begins h = 1.70 m above the horizontal, as shown in Figure P13.56. At the bottom of the track, where the surface is horizontal, the block strikes and sticks to a light spring

asked by Anonymous on December 5, 2010
96. ## physice

A deep-sea fisherman struggles to bring in a big salmon (see figure below). Find the force each hand must exert on the pole if the tension in the line is 155 N. Neglect the weight of the pole and assume that the force exerted by the left hand is directed

asked by anthony on December 6, 2012
97. ## Physics

A 10.0-kg block is released from point A in Figure P8.57. The track is frictionless except for the portion between points B and C , which has a length of 6.00 m. The block travels down the track, hits a spring of force constant 2 250 N/m, and compresses

asked by Cameron on January 27, 2015
98. ## physics

A 10.0 kg block is released from point A in the figure below. The track is frictionless except for the portion between points B and C, which has a length of 6.00 m. The block travels down the track, hits a spring of force constant 2350 N/m, and compresses

asked by mightymouse on March 1, 2009
99. ## Physics 4

A 10.0-kg block is released from point A in Figure P8.57. The track is frictionless except for the portion between points B and C , which has a length of 6.00 m. The block travels down the track, hits a spring of force constant 2 250 N/m, and compresses

asked by Anonymous on October 20, 2011
100. ## Credit Cards - Situations

Here, Im given some lists of situations, and for each situation, Ive got to figure out if using credit would be a wise or unwise decision. Rosy’s car crashes down as she is on a business trip, its going to cost her over \$2000 to have it fixed. She does

asked by Yipee on March 31, 2011