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?
84,678 results, page 45

Physics 11th grade 'Heat' `
1) While Laurie is boiling water to cook spaghetti, the phone rings, and all 1.5 kg of water boils away during her conversation.If the water was initially at 15℃, how much heat must have been gained for all of it to turn into a water vapor? 2)By January, the 3.0 kg of ... 
Physics Heat
1) While Laurie is boiling water to cook spaghetti, the phone rings, and all 1.5 kg of water boils away during her conversation.If the water was initially at 15℃, how much heat must have been gained for all of it to turn into a water vapor? 2)By January, the 3.0 kg of ... 
math
The level of oil in a storage tank buried in the ground can be found in much the same way as a dipstick is used to determine the oil level in an automobile crankcase. Suppose the ends of the cylindrical storage tank are radius of 3ft and the cylinder is 20ft long. Determine ... 
MATH
a rule of thumb used by car dealers is that the trade in value of a car decreases by 20% of its value each year. suppose the initial value of your car is $23,500. write an equation expressing the trade in value of your car as a function of the number of years from now. if your... 
health administration
What is one strength you see in the current U.S. health care system? What is one weakness you see? List and describe one of the challenges facing the U.S. health care system. 
Physics
Poiseuille’s equation relates the volumetric flow rate Q (volume per time unit) to the pressure differential ΔP that drives the flow: Q = (πr^4)/(8η) x (ΔP/L) Here η is the viscosity of the fluid and the tube has length L and radius r. A fire brigade needs to triple its... 
chem.
A closed gas system at 855K has a colume of 6060mL and pressure of 935 mmHg. If the temp. is increased to 950.0 celcius , the volume decreases to 3910mL. What is the resulting pressure? Express answer in kPa. Is 202,000,000kPa right? 
Algebra 1
1. How many solutions does the linear system have ? 3x  y = 4 3x + 11y = 2 2. A line passes through the points (6,4) and (5,3). What is the equation of the line in pointslope form ? a. x  6 = 7(y4) b. y  4 = 7(x6) c. y + 6 = 7(x+4) d. y  6 = 7(x4) 3. A line passes ... 
Science(Chemsitry)
HNO3 used as a reagent has specific gravity of 1.42g/ml and contains 70% by strength HNO3. Calculate a)Normality Of Acid b)Volume of acid that contains 63g pure acid c)Volume of water required to make 1N solution from 2ml conc.HNO3 
phisecs
In a collision, an automobile of mass 826 kg stops with constant acceleration in 20 m from an initial speed of 17 m/s. What is the acceleration of the car in m/s 
chem
Using LeChatelier's principle, predict the direction of the net reaction in each of the following system as a result of decreasing the volume of the chamber for the reaction mixture. Where does the direction shifts? a.) N2(g)+ O2(g)= 2NO(g) b.) PCl5(g)=PCl3(g)+Cl2(g) c.) CO(g... 
Math
Betty and Tracy planned a 5000km trip in an automobile with five tires, of which four are in use at any time. They plan to interchange them so that each tire is used the same number of kilometers. What is the number of kilometers each tire will be used? I don't get this ... 
Physics
A coordinate system (in meters) is constructed on the surface of a pool table, and three objects are placed on the table as follows: a 5.0 kg object at the origin of the coordinate system, a 12.0 kg object at (0, 2.0), and a 16.0 kg object at (4.0, 0). Find the resultant ... 
Chemistry
For the teaction system, 2SO2(g) + O2(g) <> 2SO3(g), Kc has a value of 4.62 at 450.0K. A system, at equilibrium, has the following concentrations: [SO3] = 0.254 M, [O2] = .00855 M. What is the equilibrium concentration of SO2(g)? The correct answer is 1.28M, but I don'... 
english comp
revise the following sentence to use modifiers correctly, clearly and effectively. *= revised sentence 1.The student cafeteria is operated by a college food service system chain. * A chain of food service system operates the student cafeteria. Thank you 
Math
the ratio of milk to water in a container is 5:1 by volume. if the total volume of mixture is 9 liters, find the volume of warer in it 
modern studies
what is the voting system called that elects constiuence msps what is the voting system called that elects regional msps 
Math 116
Identify the solution (s) of the system of equations, if any. x=1 y=1 (A) no solutions (B) (0,0) (c) (1,1) (D) infinitely many solutions Identify the solution (s) of the system of equations, if any. 3x2y=6 5x=525y (A) (28/13, 3/13) (B) (3/17, 32/17) (C) (2/17,3/17) (D) (32... 
Finance/Accounting
I am not sure that I have these questions right, can someone take a look and see if they appear to be correct? Instructions: Each of the situations below may illustrate a violation of an accounting assumption or principle. Indicate the assumption or principle that is most ... 
physics
1. consider a satellite with a period of 8 hours. if the radius of the satellite's orbit is doubled, what is the period for this satellite's. 2.what is the minimum amount of heat ( in joules) needed to heat 5.0kg (5 liters) of liquid water from it frezing point to its boiling ... 
Finance
Willamette Forests is considering a new software package that may improve productivity over the next 2 years. There is a sixty percent chance that the project will be a success in year 1 earning 2 million and a forty percent change that the venture will fail during the first ... 
math
i am supposed to solve this word problem using system of quatino methods The annual cost of owning and opearting a car, C dollars, is a linear function of the distance, d kilometers, it is driven. C=md+b the cost is $4600 for 10 000km and $9100 for 25 000km. Determien the ... 
Algebra
Simplifying y^2 + 3 + 3(y^2+1) My answer is 4y^2+6 but the program I am using (Hawkes learning system) says it isnt correct. Any help would be greatly appreciated. I have even used several online calculators to verify and this is the answer they all come up with too. HELP 
physics
A 2.8kg block is hanging stationary from the end of a vertical spring that is attached to the ceiling. The elastic potential energy of the spring/mass system is 1.2 J. What is the elastic potential energy of the system when the 2.8kg block is replaced by a 5.4kg block? 
history
hey i have done the half of it plz help me with the other half... give me ideas links...plz help How did social and gender structures in India differ from the Mediterranean? In India when the nomadic Aryans migrated into the Indus Valley, they met up with the local Dravidians ... 
CHEM 2: Boiling Point
Which Aqueous solution has the highest normal boiling point? a.) 0.1 m NaCl b.) 0.1 m C2H5OH c.) 0.1 m CaCl2 d.) They all have the same boiling point. I think that the answer is D, the all have the same boiling point. Is this correct? Because Delta T= K(b)msolute .... and if ... 
algebra 2
The number of milligrams of a drug that remains in a patient’s system after t hours is given by the function A(t) = Iert. Jordan was given 350 milligrams of medicine which leaves his bloodstream at a rate of 20%. How much of the medicine remains in his system after 4 hours? 
Math
the cote family car gets between 25 and 29 miles per gallon of gasoline the fuel tank holds 17 gallons of gasoline and the cotes refill the tank whenever it is 1/4 full the cost of gasoline will be 3.47 and 3.69 per gallon A) write expressions to estimate the amount they will ... 
Math
the cote family car gets between 25 and 29 miles per gallon of gasoline the fuel tank holds 17 gallons of gasoline and the cotes refill the tank whenever it is 1/4 full the cost of gasoline will be 3.46 and 3.69 per gallon A) write expressions to estimate the amount they will ... 
science
a glass is partially filled with water. Five ice cubes are placed in the glass, causing the level of the water to reach the rim of the glass. Which of the following statments best explains the increase in water level? A)The volume of the sumerged ice is equal to the volume of ... 
Physics
The brakes of a certain 2400 lb car can exert a maximum force of 750 lbs. What is the minimum time needed to slow the car down from 60 ft? How far does the car travel in this time? Please indicate the formula used. 
Science can you help me
Praire dogs dig alot of underground tunnel systems called "towns". They come to the surface to eat grasses. Cause all animals need to eat food.One reason prarie dogs dig alot of underground tunnel systems called wonderful "towns" is to ___________________________________. A.... 
Exploring Space
if u could travel at the speed of ligt without fuel, where would the energy required for the engine come from? is this possible? it is impossible to travel anywhere without fuel. The only other option is to walk by foot. I don't know the answer to the question, i'm stumped, ... 
Cooperate Finance
As the investment analyst for King breweries you are required to analyze the automated loom system in the Castle larger production line. The old system was purchased 5 years ago for $200,000. It falls in the accelerated cost recovery 5 year class and it has 5 years of ... 
Health care
I need orginal work on this question:• What is one strength you see in the current U.S. health care system? What is one weakness you see? List and describe one of the challenges facing the U.S. health care system. 
Algebra 2..
a rule of thumb used by car dealers is that the trade in value of a car decreases by 20% of its value each year. suppose the initial value of your car is $23,500. write an equation expressing the trade in value of your car as a function of the number of years from now. if your... 
AP Chemistry help!!!!!
How does the boiling point of ethane (CH3CH3) compare with that of ethanol (CH3CH2OH)? 1. The boiling point of ethane is higher because it has stronger London dispersion forces. 2. The boiling point of ethane is higher because it has stronger dipoledipole forces. 3. The ... 
Algebra
The Blackbird Oil Company is considering the purchase of 20new jumbo oil storage tanks. The standard model holds 12,000 gallons. Its dimensions are 4/5 the size of the similarly shaped jumbo model, that is, the ratio of the dimensions is 4:5 
Science again...
what is going to be the same about frozen water and room temp. water? A. State of Matter B. Temperature C. Boiling Point D. Physical Properties The bp will be the same... 
chem
What is the importance of an Hbond in water? It raises the boiling point of water; otherwise, following the sequence of H2Te, H2Se, H2S and H2O, the H2O would be a gas. 
Chemistry
Calculate the freezing point and boiling point of each of the following solutions A. 2.75m NaOH in water B. 0.586m of water in ethanol c. 1.26m of naphthalene (C10H8) in benzene 
math
The Randolphs used 12 more gal of fuel oil in October than in September and twice as much oil in November as in September. If they used 132 gal for the 3 months, how much was used during each month? Let x = the gallons of fuel oil used in September, and solve this equation. x... 
physics
1.A train passes an electric post in 8sec and a bridge of length 1km in 108sec .Find the speed of the engine . 2.A runner travels at the rate o f25km/hr for 4min ;then at 50km/hr for 8minn and finally at 20km/hr for 2min .Find a) the total distance covered in km and b)average ... 
Physics
A coordinate system (in meters) is constructed on the surface of a pool table, and three objects are placed on the table as follows: a 7.0kg object at the origin of the coordinate system, a 8.0kg object at (0, 2.0), and a 17.0kg object at (4.0, 0). Find the resultant ... 
Physics
A coordinate system (in meters) is constructed on the surface of a pool table, and three objects are placed on the table as follows: a 4.0 kg object at the origin of the coordinate system, a 5.0 kg object at (0, 2.0), and a 9.0 kg object at (4.0, 0). Find the resultant ... 
physics
A 100 g aluminum calorimeter contains 250 g of water. The two substances are in thermal equilibrium at 10°C. Two metallic blocks are placed in the water. One is a 50 g piece of copper at 84°C. The other sample has a mass of 58 g and is originally at a temperature of 100°C. ... 
Chemistry
CaH2 is so reactive with water that it can be used to "dry" solvents other than water. If a sample if solvent that contains a total of 14g of water is added to 24.6g of calcium hydride, which of these will remain after the reaction is complete: water or calcium hydride? A. ... 
computer science
You are required to use the Account class to simulate an ATM machine. Create ten accounts in an array with id 0, 1, 2 ...9, and initial balance $50. The system prompts the user to enter an id. If the id is entered incorrectly, ask the user to enter a correct id. Once an id is ... 
math
Water is being pumped out of a pool. the number of gallons of water W left in the pool at time t in minutes can be modeled by W(t) = 7t+ 350. Find the yintercept and explain what it represents in this problem. 
Physics
Your projectile launching system is partially jammed. It can only launch objects with an initial vertical velocity of 42.0 m/s, though the horizontal component of the velocity can vary. You need your projectile to land 211 m from its launch point. What horizontal velocity do ... 
Math *checking answers*?
The temperature was 48.2° when Marcy went to bed and 35.7° when she woke in the morning. What was the change in temperature? A: 83.9° B: 82.5° C: 13.5° D: 12.5° <  ? Carlos bought 3 gallons of ice cream for $9.50. Which proportion can be used to find the cost of 7 ... 
creating environment for learning
which of the following behaviors might be resolved by changing the environment? a. two children fighting over a toy fire engine. b. children wandering rather than participating in activities during center time. c. children climbing on furniture d. all of the above 
Business
Lisa is considering a wireless ordertaking system, and she has asked you to do a cost analysis of acquiring it. Consider the following information in your analysis: • The acquisition cost is $35,000 paid at the time of installation. • It reduces the wait staff by one ... 
Health care
My question is, how do I start a radio ad??? Should I just come out and tell about a healthy musculoskeletal system??? Write a 150 to 200word script for a radio ad that promotes a healthy musculoskeletal system in old age. Address the risk factors for arthritis, osteoporosis... 
Calculus I
*Optimization problem* [I don't know how to get to the answer] Problem: You have a cylindrical can with radius 4cm and height 10cm. Inside is a marble with a radius that has to be larger than 0 but less than 4 cm (even the largest marble will fit entirely). You're filling it ... 
algebra 2
the number of milligrams of a drug that remains in a patient's system after t hours is given by the function a(t)=ie^rt. jordan was given 500 milligrams of medicine which leaves his bloodstream at a rate of 25%. how much of the medicine remains in his system after 6 hours? 
Math
A) A rectangle has perimeter 64 cm and area 23 cm^2. Solve the following system of equations to find the rectangle's dimensions. length=23/width length + width = 32 B) Solve the system of equations x^2+y^2=1 xy=0.5 
Chemistry
If 244 KJ heat is released and 35 KJ WORK done on the system.calculte (a)change internal energy and change in enthalpy of system? (b) change in internal energy and change in enthalpy of the suround ? 
Trig
Use a graphical method to find a solution to the following system of equations in the interval –1 ≤ x ≤ 5: y = x2 – 4x + 2 y = x + 2 The solution set to this system of equations in the interval –1 ≤ x ≤ 5 is {} {(2, 0)} {(0, 2), (5, 7)} {(2, 0), (... 
Algebra
Find the solutions to the system. y=x^2+5x+6 y=4x+12 A. (2,20) and (3,0) B. (2,20) and (3,18) C. (2,20) and (3,18) D. no solutions Find the solutions to the system. y=x^23x1 y=8x1 A. (0,1) and (11,388) B. (0,1) and (11,87) C. (1,0) and (87,11) D. no solutions Hi I... 
Physics
An automobile is brought to a stop by applying friction brakes to the wheels. The brakes get hot; their thermal energy is increased. The decrease in kinetic of the car is equal to the increase in thermal energy of the brakes. According to the first law of thermodynamics, the ... 
chemistry
The alkanes are a homologous series of compounds containing only carbon and hydrogen that have the general formula . Members of this series include butane (), 2,2dimethylpentane (), hexane (), and heptane (). The boiling points of some members of this homologous series are ... 
Georgia Studies
Can someone check if I answered this question correctly? What is the county unit system? Ans The county unit system gave each county a number of voting units based on the size of the population. For example, a city that is highly populated could get 8 voting units and farm ... 
physics
A theoretical gasoline engine runs with 76 percent efficiency. It is calculated that it expels 3.25*10^4 J of heat. a. Find the heat absorbed in one cycle. b. Find the work output in one cycle. 
Physics
An interacting system of two objects has no external force acting on the system. The first has a mass of 2.00kg and is moving with a velocity (2.00m/s)i + (1.00m/s)j at time t=0s. The second object has a mass of 3.00kg and is moving with a velocity (1.00m/s)i + (1.00m/s)j at ... 
chemistry
Energy must be transferred into or out of a system in order to cause phase change.In addition changes in the energy can be directly related to pressure volume changes.If equal moles of each gas is compressed which one would have the largest pressure volume change during ... 
chemistry
Energy must be transferred into or out of a system in order to cause phase change.In addition changes in the energy can be directly related to pressure volume changes.If equal moles of each gas is compressed which one would have the largest pressure volume change during ... 
chemistry
Energy must be transferred into or out of a system in order to cause phase change.In addition changes in the energy can be directly related to pressure volume changes.If equal moles of each gas is compressed which one would have the largest pressure volume change during ... 
8th Grade History
Can I have these answers checked... 1. Which of The following provides the definition of a nation? A. The Highest elected officials in a country B. The are ruled by an independent government C. A country with defined borders and foreign policy enforced by a military*** D. A ... 
maths, statistics
The yearly mileage accumulated by an automobile in a large car rental company’s ﬂeet is normal with mean 18000 kilometres and standard deviation 1700 miles. At the end of the year the company sells 80% of its cars, keeping the 20% with the lowest mileage. Do you think a ... 
Physics
1. A ball is launched from a cliff with an initial velcity of 10 m/s at an angle of 40 degrees above horizontal. If the ball lands 24 m away, determine the height of the cliff. 2. if the mass A is 1 kg and the mass of B is 6.0 kg, determine the acceleration of the system and ... 
Health
The three lines of defense your body has against disease include all except? A. physical and chemical defenses B. inflammation C. immune system D. scarring True or false B cells and H cells are two important cells in the immune system that help fight infection. Antibodies are ... 
Chemistry
Combusting 44.8L of H2 with 22.4 L O2 (both at STP) results in the formation of 44.8 L of H2O if the reaction is maintained at the same conditions (STP) and goes to completion. Given the heat of formation of water (= 241.8 kK/mol) calculate a) the PV work b) the heat evolved ... 
Physics
CAN SOMEONE PLEASE HELP ME; I NEED TO KNOW IF MY ANSWERS TO THESE QUESTIONS ARE CORRECT! THANK YOU SO MUCH!! 1.) Whenever an interaction occurs in a system forces occur in equal and opposite pairs. Which of the following do not always occur in equal and opposite pairs? a) ... 
Physics _ Please help
25 kg of ice at 0° C is combined with 4 kg of steam at 100° C. What is the final equilibrium temperature in ° C of the system? (Lf = 3.33 x 105 J/kg; Lv 2.26 x 106 J/kg, specific heat capacity of water =4186 J/(kg.K)) Question 2 options: A) 40 B) 20 C) 60 D) 100 E) 8 
Biology 9th grade
I am stuck on a question on The Integumentary System, the question is Water molecules in the blood pass through the walls of the (blank) into the sweat glands. I am not sure, can someone help me, thanks. 
Chemistry
When given a chemical reaction, how would I know whether a reaction is endo or exothermic and whether work is done on the system or by the system. Without using any calculations. So I have a couple reactions which I have to use chemical reasoning to to determine. 2 Cl(g) >... 
Physics
In the absence of external torques, the angular momentum of a system is conserved. An artificial satellite orbiting the Earth quadruples its kinetic energy. Assuming no external torques act on the system, the radius of the orbit will ... a. Decrease by a factor of 4 b. ... 
physics
A boat floating in fresh water displaces water weighing 35.6 kN. (a) What is the weight of the water this boat displaces when floating in salt water of density 1.10 x 10^3 kg/m^3? (b) What is the difference between the volume of fresh water displaced and the volume of salt ... 
calculus
6. A trough is in the shape of a triangular prism. It is 5 feet long and its vertical cross sections are isosceles triangles with base 2 feet and height 3 feet. Water is being siphoned out of the trough at the rate of 2 cubic feet per minute. At any time t, let h be the depth ... 
Physics
Archimedes principle. The weight of the bouy is given, so the weight of water displaced by the submerged part of the bouy equals that. Figure the volume that weight of water displaces, then figure the height of a .33m diameter column of water will have of that volume. A large ... 
History
Which was not an invention that fueled the Industrial Revolution? blast furnace steam engine flying shuttle spinning mule I know that the answer is not B or C. I chose the spinning mule, but I never learned what the blast furnace is so could it be that? 
English
Can you please check if the following sentences are correct? I thank you very much in advance. 1) In the morning I usually make coffee for my parents and myself (?). Then I got washed and changed. 2) I usually take the child to the beach.I have to carry a heavy bag (how do you... 
MATH @Damon @ms. Sue
Sam is observing the velocity of a car at different times. After three hours, the velocity of the car is 53 km/h. After six hours, the velocity of the car is 62 km/h. Part A: Write an equation in two variables in the standard form that can be used to describe the velocity of ... 
English
Thank you very much for your corrections. Here are a few more sentences on the same subject I'd like you to check. 1)The Industrial Revolution brought several changes to Britain. First of all, it caused an enormous increase in production and consequently in the total wealth of... 
English
In following sentence is Knowing a verbal participle or a verbal gerund? Knowing how an engine works is the key to auto repair. I want to say gerund because I say it is the subject. 
statistics
It is claimed that an automobile is driven on the average more than 20,000 kilometers per year. Random sample of 10 automobile owners are asked to keep a record of the kilometers they travel. If the sample mean and standard deviation of automobile driven are found to be 23,500... 
Science
1. How do scientists classify small objects in the solar system? by size by shape by size, shape, and temperature by size, shape, and composition** 2.Which of the following categories of small bodies in the solar system does Ceres belong to? dwarf planets** comets meteoroids ... 
Physics
A 343kg boat is sailing 16.2° north of east at a speed of 1.98 m/s. Thirty seconds later, it is sailing 37.5° north of east at a speed of 3.76 m/s. During this time, three forces act on the boat: a 30.3N force directed 16.2° north of east (due to an auxiliary engine), a ... 
Education technology
1. which of the following is an example of tangible property? A method for creating ice cream that you friend thought of An idea for an invention that your dad mentioned briefly but did not write down•• Song lyrics printed in a songbook A quicker system of washing a car ... 
science
a glass is partially filled with water. Five ice cubes are placed in the glass, causing the level of the water to reach the rim of the glass. Which of the following statments best explains the increase in water level? A)The volume of the sumerged ice is equal to the volume of ... 
MATH
NEED EXTREME HELP!@#$%^a rule of thumb used by car dealers is that the trade in value of a car decreases by 20% of its value each year. suppose the initial value of your car is $23,500. write an equation expressing the trade in value of your car as a function of the number of ... 
chemistry
How much energy must be put into a system to raise 100 g of solid water from 5.5 degrees Celsius to 75 Degrees Celsius? Heat Capacity of Ice: 2.09 J/g degrees C Heat Capacity of Water: 4.18 J/g degrees C Heat of Fusion: 6.01 kJ/mol 
physics
A test rocket is fired vertically upward from a well. A catapult gives it an initial speed of 80.8 m/s at ground level. Its engines then fire and it accelerates upward at 3.90 m/s2 until it reaches an altitude of 920 m. At that point its engines fail, and the rocket goes into ... 
physics
The four tires of an automobile are inflated to a gauge pressure of 1.8 multiplied by 105 Pa. Each tire has an area of 0.025 m2 in contact with the ground. Determine the weight of the automobile. No idea how to start, please help. 
Science
A child has a fever. The temperature of his body is recorded as 103 degree farenheit by a thermometer . A doctor advised his mother to give medicine to lower the temperature. As we know evaporation causes cooling. The medicine given to child enhanced the evapouration. ... 
Physics
You and another person go to the museum and decide to take a look at an exhibit that has a bike with an attached heating coil/generator. The coil is placed in a tank of water at 20 deg C. Peddling makes the coil increase the energy of the water. The goal is to make the water ... 
General Chemistry
How do I calculate the concentration of KmNO4 when.. Initial Volume is 50mL 0.11g sodium oxalate Volume of KMnO4 used to titrate oxalate and acid= 34.0 mL Volume of KMnO4 used to titrate acid only= 0.10 mL Please help me Thank you! 
physics
A closed container with a volume of 8000cm^3 is filled with Xenon gas. the temperature is 273K and the pressure is 2 atm. How many moles of Xenon are in the container? The container is now submerged in boiling water until the gas inside the container is at 373K. What is the ... 
operating system
Case 22: Comparing WordProcessing Applications You see an opportunity to possibly save your company money by adopting the OpenOffice suite for the new PCs in the Engineering Department. Your boss is interested in your suggestion, but wants to see a list of pros and cons for ...