# A 50/50 blend of engine coolant and water (by volume) is usually used in an automobile\'s engine cooling system. If your car\'s cooling system holds 4.00 gallons, what is the boiling point of the solution?

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1. ### physics

an air craft of mass 5110 kg flying in level flight at speed of 398 knots air enters the engine is 65 kg/s and the jet speed relative to the air craft is 610 m/s if the lift drag ratio is 10 find accerlation and power and thrust thanks if any one can help i done it but i get a...
2. ### Science

The engine of a motorcycle can produce a maximum acceleration 5 meters per second square. Its brakes can produce a maximum retardation 10meters per second square. What is the minimum time in which it can cover a distanceof 1.5km
3. ### Physics

Some rental cars have a GPS unit installed, which allows the rental car company to check where you are at all times and thus also know your speed at any time. One of these rental cars is driven by an employee in the company’s lot and, during the time interval from 0 to 10 s...
4. ### Chem

An air purifiction system involving litium hydroxide, LiOH, was used. LiOH absorbs carbon dioxide. 2LiOH(s) + CO2(g) <---> Li2CO3(s) + H2O(l) Use Le Chatelier's principle to explain why the amount of time astronauts can spend in a space-craft is limited?
5. ### Math

A car was purchased for \$36,730. The following equation can be used to predict the value of the car based on it age, where t stands for the time in years: A = 36730(.82)t. If the car was purchased in March 2002, what will its value be in September 2009? Round your answer to ...
6. ### Math

A car was purchased for \$36,730. The following equation can be used to predict the value of the car based on it age, where t stands for the time in years: A = 36730(.82)t. If the car was purchased in March 2002, what will its value be in September 2009? Round your answer to ...
7. ### calculus

The efficiency of an internal combustion engine is given by E= (1-v/V)^0.4 Where V and v are the respective maximum and minimum volumes of air in each cylinder. a) Show that ∂E/ ∂V > 0 and interpret your result b) Show that ∂E/ ∂v < 0 and ...
8. ### calculus

The efficiency of an internal combustion engine is given by E= (1-v/V)^0.4 Where V and v are the respective maximum and minimum volumes of air in each cylinder. a) Show that ∂E/ ∂V > 0 and interpret your result b) Show that ∂E/ ∂v < 0 and ...
9. ### computer

Statement: Bits can be used to represent A) numbers, B) names, C) colors and D) dates. This holds true for: A. A only B. A and C C. A and D D. A, B, C and D
10. ### science

how many joules are required to evaporate 1 gram of boiling water?
11. ### Chemistry

when 5.00 g of CaCl2 dissolves in 50.0g of water, what is the boiling point of the solution
12. ### chemistry1411

calculate the boiling point of water if the atmospheric is 630 mm hg
13. ### World History

Among the factors that brought about European colonialism, which of the following supported concepts of racial superiority? A. The introduction of the steam engine and the telegraph B. Social Darwinism C. Economic and trade opportunities D. the machine gun I have read till I ...
14. ### Math

A jug holds 3.75 liters of water. How many millimeters can fit into the bottle
15. ### biology

what kind of bond holds the hydrogen to the oxygen in one water molecule??
16. ### Socias Studies

which of the following is an advantage of a presidential government? A. the president is elected independently of the legislative brach B. The president is part of the legislative branch C. A system of checks and balances increases legislative power D. A system of checks and ...
17. ### English

1. What do you usually do on weekends? 2. What do you usually do at weekends? 3. What do you usually do in weekends? Which one is correct? Can we use all prepositions?
18. ### Math

Weatherwise is a magazine published by the American Meteorological Society. One issue gives a rating system used to classify Nor'easter storms that frequently hit New England and can cause much damage near the ocean. A severe storm has an average peak wave height of ì = 16.4 ...
19. ### Chemistry

A 10.0 mL sample of supernatant liquid from the system described by equation 1 was titrated with 0.01022 M EDTA solution to an end-point at 16.90 mL. Titration of the blank gave a titre (end-point) at 1.45 mL. Determine the titration volume required to titrate the Ca2+ alone.
20. ### Physics

At t = 0, an automobile traveling north begins to make a turn. It follows one-quarter of the arc of a circle of radius 10.9 m until, at t = 1.56 s, it is traveling east. The car does not alter its speed during the turn. Find the car's speed. Find the change in its velocity ...
21. ### physics

At t = 0, an automobile traveling north begins to make a turn. It follows one-quarter of the arc of a circle of radius 9.3 m until, at t = 1.38 s, it is traveling east. The car does not alter its speed during the turn. (a) Find the car's speed. (b) Find the change in its ...
22. ### physics

At t = 0, an automobile traveling north begins to make a turn. It follows one-quarter of the arc of a circle of radius 10.1 m until, at t = 1.64 s, it is traveling east. The car does not alter its speed during the turn. (a) Find the car's speed. (b) Find the change in its ...
23. ### Chem II

What is the boiling point of an aqueous solution of a non electrolyte that has an osmotic pressure of 10.50atm at 25 degrees C? Kb of water is 0.52 degrees C/m. Assume the density of the solution is the same as that of pure water.
24. ### Behavioral Science

I have a assignment du and kind of confused after reading the text the assignment is write 700- to 1,050-word essay in which you compare and contrast the influence of heredity and hormones on human behavior. I am not sure exactily how to start this paper to me I believe that ...
25. ### Algebra

Student tickets to the Homecoming game cost \$5 each. General admission tickets cost \$8 each. So far, 150 tickets have been sold. \$900 has been collected. A. Write a system of equations for this model in standard form. 5S = Student tickets: 100 sold 8G = General Admissions: 50 ...
26. ### Algebra 2

Is it me or does this problem not make sense? (you can't solve it) 5. Solve for x in the following system: 6x + 6y = -2 y = -x I also need help in these: 38. We can take the product AB only if the number of columns of A equals the number of rows of B. -True? 40. The graph of ...
27. ### math

For a person of height h (in inches), a healthy weight W (in pounds) is one that satisfies this system of inequalities: W is greater than or equal to (19h^2)/703 and W is less than or equal to (25h^2)/703 Graph the system for 0 is less than or equal to h which is less than or ...
28. ### physics

A uniform meterstick pivoted at its center has a 80.0g mass suspended at the 28.0cm position.At what position should a 80.0g mass be suspended to put the system in equilibrium?What mass would have to be suspended at the 90.0cm position for the system to be in equilibrium?
29. ### Earth Science

I am struggling with these two questions I have looked all over the internet && even my science book but still no answers...thank you to anyone that can help. ♥ What is unique about Earths position in the Solar system as it relates to water, and why is this important...
30. ### Physics

In procedure 1: suppose the hanging mass is mH = 203 g and the mass of the cart is mC = 1286 g. a) Assume there is no friction anywhere in the system, and the system starts at rest. i. Find the magnitude of the acceleration of the masses. a = m/s2 ii. Find the magnitude of the...
31. ### physics

Putting a lid on a boiling pot greatly reduces the heat transfer necessary to keep it boiling. Explain why
32. ### Physics

A hydraulic lift is used to jack a 780 kg car 15 cm off the floor. The diameter of the output piston is 15 cm, and the input force is 160 N. a)What is the area of the input piston (in m^2)? b)What is the work done in lifting the car 15 cm? c)If the input piston moves 13 cm in ...
33. ### Physics

A force of -9200 N is used to stop 1500 kg car traveling at 23 m/s. What braking distance is need to bring the car to a halt?
34. ### physics

A force of -9000 N is used to stop a 1500kg car traveling at 20 m/s. What braking distance is needed to bring the car to a halt?
35. ### physics

Three particles of masses 14 kg, 21 kg, and 69 kg are located at the vertices of an equilateral triangle of sides 7 m. A)Find the x-coordinate of the center of gravity of this system with respect to a coordinate system with origin at the 14 kg particle and with the 21 kg ...
36. ### science

which statement is true about the volume of the water displaced when the golf ball dropped into the large beaker? 1)It is equal to the volume of the golf ball. 2)It is greater than the volume of the golf ball 3)It is less than the volume of the golf ball 4)It is twice the ...
37. ### chemistry

So I did a titration lab at school with NaOH and HCl. i have to find: - volume used, NaOH - Moles of NaOH - Moles of HCl -Volume used unknown HCl - Molarity of HCl solution My concentration of NaOH stock solution was 0.100 mol/lL Final buret reading, NaOH: 14.20 ml Initial ...
38. ### math

A typical Latino coffee farmer has fixed costs of \$10,000 per year. Under the old distribution system, the farmer is paid \$.40 per pound (U.S. weight measure) and the farmer’s variable cost per pound is \$.30. What is the farmer’s breakeven point in units (pounds) under the...
39. ### science

Please help!! Methylamine has a vapor pressure of 344 torr at -25∘C and a boiling point of -6.4∘C . Find ΔHvap for methylamine. I know that ln(P1/P2)=(ΔHvap/R)(1/T2-1/T1) but it doesn't indicate whether the boiling point is the "normal boiling point". Am I on the right ...
40. ### physics

Your car's 31.5 W headlight and 2.15 kW starter are ordinarily connected in parallel in a 12.0 V system. What power would one headlight and the starter consume if connected in series to a 12.0 V battery? (Neglect any other resistance in the circuit and any change in resistance...
41. ### health

How does technology impact the choices we as consumers make regarding our healthcare choices? And how can that technology impact the response healthcare organizations make during alarming or unforeseen events? Can someone help me find and internet engine on this question? ...
42. ### math

The average airspeed of a single-engine aircraft is 150 milesper hour. If the aircraft flew the same distance in two hours with the wind as it flew in 3 hours against the wind, what was the effect of the wind on the plane? What are the equations? What is wind speed?
43. ### math

A group of 148 people is spending five days at a summer camp. The cook ordered 12 pounds of food for each adult and 9 pounds of food for each child. A total of 1410 pounds of food was ordered. Write a system of equations that describes this situation, and define your variables...
44. ### Algebra

You go to the doctor and he gives you 13 milligrams of radioactive dye. After 20 minutes, 4.5 milligrams of dye remain in your system. To leave the doctor's office, you must pass through a radiation detector without sounding the alarm. If the detector will sound the alarm if ...
45. ### Algebra 2

Evan spent the summer earning money so he could buy the classics car of his dreams. He purchased the car for \$2,295 from Fast Deal Freddie, the local used car salesman. Freddie told Evan that the car would increase by half its value after five years. Evan knows that this model...
46. ### Chemistry

If the change in temperature of a sugar added solution of water increased its boiling point by 0.6C how many moles of sugar was added to the water?
47. ### Chemistry

Question: The solubility of a salt in water increases if either ion of the salt undergoes hydrolysis. Comput the molar solubility of AgCN in water assuming no hydrolysis. B) compute the molar solubility of AnCN in water assuming hydrolysis occurs. The equation would be AgCN ...
48. ### 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 have defined your ...
49. ### Chemistry

A piece of aluminum with mass of 5.0 g is immersed in 30.0 g of water. This system is heated electrically from 20.8 to 42.6°C. How many joules of energy are absorbed by the aluminum? (Cpaluminum = 24.4 J/mol-K; 1 mole of aluminum has a mass of 27.0 g)
50. ### chemistry

A 2.97 g sample of a molecular compound is dissolved in 103 g of tetrachloromethane (carbon tetrachloride). The normal boiling point of the solution is 61.51C, the normal boiling point of CCl4 is 61.2C. The boiling point constant for CCl4 is 4.95 K · kg/mol. What is the ...
51. ### physics

A stunt car driver drives off an h = 7.9 m-high cliff into a lake with a horizontal speed of 17 m/s. The car needs to clear an 17.1 m-long ledge that is 5.0 m below the edge of the cliff, as shown in the figure below. The car just misses the ledge on the way down. With what ...
52. ### Chemistry

The water from a hydrated magnesium salt is driven off by heat in a closed system. If the steam generated exerts a pressure of 24.8 atm in a 2.00L container at 120 degrees C, determine the number of moles of H2O driven from the compound.
53. ### chemistry

I think, by convention, most would consider the solvent as the major component and the others as solutes. Actually, however, it dosesn't matter. I just read that when one liquid is dissolved in another, the minor component is usually considered the solute and the major ...
54. ### Chemistry

A solution of acetic acid was prepared by mixing glacial acetic acid with water.The solution was 25% of acetic acid by volume.How much glacial axetic acid must be used to prepare 120 mL of desired volume?
55. ### physics

a mechanic uses a chain and bloc pulley to lift a 875-kg engine 4.0 m to the top of the garage. the downward force on the chain over the 4.0 m distance is 5.0 x 10^4 N. a)calculate the work done in raseing the motor b)how much useful work was done c)what is the inefficiency of...
56. ### Algebra 1--Please, help me!

4. The sum of the digits of a two-digit number is 11. If 45 is added to the number, the digits will be reversed. a. Write a system of equations that you can use to find the digits of the number. Tell what each variable represents. b. Solve the system of equations to find the ...
57. ### managerial economics

The Harley-Davidson motorcycle company, which had a copyright on the word "hog," applied for exclusive rights to its engine sound. Why would a company want copyrights on two such mundane things? In my opinion. The reason for the two mundane things is to protect itself from any...
58. ### Physics

You have setup an experiment with two 50g masses attached to strings that are connected on opposite sides of a scale that measures weight in Newtons. a.) What is the reading on the scale? b.) The whole system is now moving to the left at a speed of 10m/s. What is the reading ...
59. ### Algebra help!

Please help and I would appreciate an explanation as to how you got to the answer. 1.) Solve the system by triangularizing the augmented matrix and using back substitution. 0.09x-0.15y+0.39 -0.18x+0.35y=-0.88 2.) Solve the system by triangularizing the augmented matrix and ...
60. ### math

To make 4 1/2 gallons of ice cream, it takes 6 3/10 gallons of milk. How many gallons of milk does it take to make one gallon of ice cream? Do I divide 6 3/10 by 4 1/2
61. ### Physics

A pulley system is used to lift a piano 2.6 m. If a force of 2510 is applied to the rope as the rope is pulled in 14 m, what is the efficiency of the machine? Assume the mass of the piano is 750 kg. I know the equation is eff = Wout / Win I'm just confused on what I'm supposed...
62. ### mabathoana high school maseru

A block and tackle system of 5 pulley is used to raise a load of 500N steady through a height of 20m the work done against friction is then 2000J. Calculate the work done By effort, efficiency and effort applied
63. ### History

HELPPPP DUE TOMORROW 1)Compare the different forms of slave protest?? 2) Identify the conditions of slavery that encourage the enslave Africans to resist this system??? 3) Identify the measures used by enslaved females only against enslaved men????
64. ### History

HELPPPPP DUE TOMORROW 1)Compare the different forms of slave protest?? 2) Identify the conditions of slavery that encourage the enslave Africans to resist this system??? 3) Identify the measures used by enslaved females only against enslaved men????
65. ### physics

need to know mass and acceleration of a 30.5 bloch connected to an empty 1.00kg bucket by cord running over a frictionless pulley coefficient of static friction between table and block is 0.405 and coeff. of kinetic frict. between the table and the block is 0.320 adding sand ...
66. ### Micoreconomics

In recent years, the Internet auction firm eBay has sougth to make its auction technology the favorite of software programmers, and it has begun licensing its technology to other Web sites. The company's managers have pulicly stated that their goal is for eBay's auction system...
67. ### Physics(Rotational Energy)

Suppose three masses are arranged as shown, connected by a rodless mass. (2 kg)-------(6 kg)--------(4 kg) 2m 3m a) If this object is free to rotate in space, about what point will it spin? b) A small mass (m=0.1 kg) drops vertically onto the2 kg mass traveling 100 m/s and ...
68. ### physics

Two cars both travel along a straight road Northbound. At t = 0, the car 1 is 190.6 m further north than car 2. Also at t = 0, car 1 is travelling at 24.3 m/s, and car 2 is travelling at 5.7 m/s. Car 1 is slowing down with an acceleration of magnitude 0.28 while car 2 is ...
69. ### physics

At t = 0, an automobile traveling north begins to make a turn. It follows one-quarter of the arc of a circle of radius 9.3 m until, at t = 1.38 s, it is traveling east. The car does not alter its speed during the turn. (a) Find the car's speed. ___ m/s (b) Find the change in ...
70. ### Physics

Your whole family has taken showers before you, dropping the temperature in the water heater to 18 degrees Celsius. If the water heater holds 150 kg of water, how much energy will it take to bring it to 50 degrees Celsius? If the energy is supplied by a 5 kW electric heating ...
71. ### Chemistry

A coffee cup calorimeter contains 100.0 g of water at 10.0 ◦C. A 72.4 g sample of iron is heated to 100 ◦C and dropped into the calorimeter. Assuming there is no heat lost to the coffee cup, calculate the final temperature of the system. The specific heats of iron ...
72. ### chemistry

Oganic solvents are not suited to be heated with one of the followings: Oil Bath Electric hot plate Water bath Bunsen burner flame 2 Which of the following is not an inflammable liquid ? Water Ethanol Kerosine Benzene 3 These are some safety precausions necessary in a ...
73. ### math

kendall saw an advertisement for a used car that was being sold for 12% off.the regular price of the car is listed as \$7,250.which format of the percent equation can you use to find the discount on the price of the car?justify your decition. 7,250*12/100 =870 correct
74. ### physics

A remote controlled car. My 11 year old grandson, Danny, got a remote controlled car for his birthday. His older brother, Jay, has a set of physics tools, including a sonic ranger. Jay is a computer jockey and has figured out how to make the sonic ranger program show any ...
75. ### Computer Science Java

I have to write program for a dice game and use a boolean variable in the application class of the dice game that equals true when snake eyes, doubles, and box cars have been meet. I am having a little trouble doing that in my application class so I was wondering if somebody ...
76. ### Math

A passenger car will go 429 miles on 16.5 gallons of gas in city driving.What is the rate in miles per gallon?
77. ### Math

A passenger car will go 429 miles on 16.5 gallons of gas in city driving.What is the rate in miles per gallon?
78. ### MPG

a passenger car will go 525 miles on 17.5 gallons of gasoline in city of driving. what is the rate miles per gallon?
79. ### science

Describe the events that take place in the movement of fluid in the capillary beds. What forces are involved in the movement of fluid out of the capillaries and back in again? Where in the capillary does movement take place? What is the role of the lymphatic system in the ...
80. ### science

Describe the events that take place in the movement of fluid in the capillary beds. What forces are involved in the movement of fluid out of the capillaries and back in again? Where in the capillary does movement take place? What is the role of the lymphatic system in the ...
81. ### science

Describe the events that take place in the movement of fluid in the capillary beds. What forces are involved in the movement of fluid out of the capillaries and back in again? Where in the capillary does movement take place? What is the role of the lymphatic system in the ...
82. ### physics

A playground merry-go-round of radius 2.00 m has a moment of inertia I = 255 kg·m2 and is rotating about a frictionless vertical axle. As a child of mass 25.0 kg stands at a distance of 1.00 m from the axle, the system (merry-go-round and child) rotates at the rate of 14.0 ...
83. ### Dynamics

A 1500 kg automobile is traveling upto 20 deg inclined at a speed of 6 m/sec. If the driver wishes to stop his car in a distance of 5m,determine the frictional force at pavement which must be supplied by rear wheels.
84. ### math

Samuel Morse developed a character coding system that was used to send messages along telegraph lines and also for light signalling between ships. Morse code is based on a series of dots and dashes (short of long bursts). The most frequently used letter, E, is coded as a ...
85. ### algebra

making linear equation from word problem At low altitudes, the altitude of a parachute and time in the air are linearly related. A jump at 2,880 ft use the US army T-10 parachute system last 120 sec. (A) find a linear model relating altitude a (in feet) and time in the air t (...
86. ### Chemistry

In chemistry lab we did an experiment trying to find the empirical formula of an oxide and tin. The question is "suppose some of the oxide splattered out of the crucible. How would this affect your calculated ratio of the number of moles of oxygen to the number of moles of tin...
87. ### physics

an objectfloats in water with 3/4 its volume below the surface of the water. if the volume of the object is 1 m^3, what is the mass of the object?
88. ### Grammar

Circle the nouns that can be used with the verbs on the right . Engine-consumption-dependence (reduce) Answer : consumption and dependence Solution-dependence-alternative (find) Answer:solution and dependence Resources-technology-stocks(deplete) Answer:Resources and technology...
89. ### Physics

This is a question related to work. Today we had a pop quiz in my physics class and I am just trying to check my work here :D 1) if there is a 5 kg block on a horizontal table connected with string to a 3 kg block hanging off the side of the table through a pulley. Assume the ...
90. ### Physics

An automobile with a mass of 1450 kg is parked on a moving flatbed railcar; the flatbed is 1.50 m above the ground. The railcar has a mass of 38500 kg and is moving to the right at a constant speed of 8.70 m/s on a frictionless rail. The automobile them accelerates to the left...
91. ### Physics

A system consists of two particles. Particle 1 with mass 2.0 kg is located at (2.0 m, 6.0 m) and has a velocity of (2.1 m/s, 4.1 m/s). Particle 2 with mass 4.5 kg is located at (4.0 m, 1.0 m) and has a velocity of (4.6 m/s, 4.6 m/s). Determine the position and the velocity of ...
92. ### Chem

given the reaction: agcl(s) +2nh3 (aq) <--> ag (nh3)2 +(aq) + cl^- (aq). if more ammonia, nh3 is added to the system at equilibrium the a) amount of agcl increases b) system cannot achieve equilibrium c) rate of the forward reaction decreases d) concentration of cl^- ...
93. ### PHYSICS

A copper vat is 10 m long at room temperature (20 degrees C). How much longer it is when it contains boiling water at 1 atm pressure? Air in a balloon does 50 J of work while absorbing 70 J of heat. What is its change in internal energy? A bottle containing 3 kg of water at a ...
94. ### COMPUTER HARDWARE MANAGEMENT

how can you obtain real-time ,current information in Windows NT /200/xp about the 1)number of memory pages per second 2) average disk quee length and 3) percentage of processor time being utilized a) type perform in the run dialog box and click OK b)go to Programs or All ...

How are the numbers of electors for each state decided? 1.)Each state gets one elector. 2.)Each state gets two electors. 3.)Each state gets as many electors as it has senators. My answer4.)Each state gets as many electors as it has members of Congress. Which is NOT a factor ...
96. ### Computer science

3.We often come across the terminology like 6b-bit processor, 64-bit operating system and 64-bit system bus. Do you understand those terminologies? What exactly those numbers represent? Please find out the exact meaning of three terminologies above (give example for each of ...
97. ### epidemiology

Let’s say you are a health policy expert and you are sitting in your office and you receive a phone call from a news reporter. The reporter asks you to comment for a story she is writing. She has learned from the chief of neurosurgery at Cooper University Hospital that the ...
98. ### Physics

(a) CO2 emissions C from a nation’s energy system can be expressed as: C = Population x Energy consumption per person x CO2 emissions per unit of energy consumption. Initially, total emissions are 600 million tonnes of CO2 per year. If, over a 50-year period, population ...
99. ### ELA

can you proof read When we turn on the top,we expect an abundant supply of clean, fresh water to flow out. Having one of the world's largest supplies of fresh water, these expectations may usually be met in Canada . However,in many other countries, water is a scarce commodity...
100. ### Calc 3

A cooling tower for a nuclear reactor is to be constructed in the shape of a hyperboloid of one sheet. The diameter at the base is 300 m and the minimum diameter, 500 m above the base, is 200 m. Find an equation describing the shape of the tower in the coordinates where the ...