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 49

physics
Two stars in a binary system orbit around their center of mass. The centers of the two stars are 7.78x1011 m apart. The larger of the two stars has a mass of 4.19x1030 kg, and its center is 1.75x1011 m from the system's center of mass. What is the mass of the smaller star? 
Math
Shelia uses three times more water than lemon juice. She has 2 gallons of water. How much lemon juice does she need? 
Read Y9 chemistry (then anwer this)
2a) Someone finds teo bottles without labels. Both are white solids. One of the white solids turns directly from a solid to a gas on heating. What is this type of change called? b) The other solid turns yellow on heating. On cooling it turns white again. What might this solid ... 
Health
Describe how intoxication affects the excretory system. A. drinker loses more water from the body then usual B. more blood flows through the skins surface C. sensation and perceptions become less clear D. too much alcohol in the may cause vomiting I think it is A. drinker ... 
Science  Chemistry
A certain elixir is 92 proof. A proof is twice the volume percentage of alcohol in a blend. Ethanol's structural formula is CH3CH2OH with a molar mass of 46 grams/mole. The density is .79 g/ml. How many liters of elixir must one have in order to have 50 moles of carbon? 
math
Please explain in detail how to solve each question: At a certain high school, 350 students are taking an algebra course. The ratio of boys to girls taking algebra is 33:37. How many more girls are taking algebra than boys? How can you write a system of equations to model the ... 
English
revise the following sentence to use modifiers correctly, clearly and effectively. Original 1.The student cafeteria is operated by a college food service system chain. Revised. The chain of student cafeteria is operated by a college food service system 
Calculus III
Topic: Quadric surfaces. I have two homework problems, and they are quite a doozy for me. So the point is, I am given details of a quadric surface on the Cartesian coordinate system, and thus have to use the data to construct an equation through it. ====================== Find... 
physics
You are the design engineer in charge of the crashworthiness of new automobile models. Cars are tested by smashing them into fixed, massive barriers at 50 km/h (30 mph). A new model of mass 1500 kg takes 0.11 s from the time of impact until it is brought to rest. (Take the ... 
chemistry
Determine the boiling point of water at 698.5 mm Hg. 
Physics
Why does temperature of water does not change while it is boiling? 
chemistry
what is the boiling point of 0.212 m lactose in water? 
Chemistry
cooking oil, a nonpolar liquid, has a boiling point in excess of 200 degrees Celsius. Water boils at 100 degrees. how can you explain these facts, given the strength of water's hydrogen bonding? 
gravitational potential
(1) 2 particles of equal mass are fixed at X=0 and another +ve point on the x axis. No other grav influences are in the system. (they can be ignored) I have to derive an expression for Vgrav at a general position x, on the x axis. I believe this is related to V=GM/r, but can'... 
math
What is the diameter of a barrel that is 3.5 ft tall and holds 11 cubic feet of water 
physics
The tallest volcano in the solar system is the 18 km tall Martian volcano, Olympus Mons. An astronaut drops a ball off the rim of the crater and that the free fall acceleration of the ball remains constant throughout the ball’s 18 km fall at a value of 4.4 m/s2. (We assume ... 
science
A gardener holds a hose 0.75m above the ground such that the water shoot out horizontally and hits the ground at a point 20m away.What is the speed with which the water leaves the hose? 
us history
Which is the best definition of the word "naturalization"? A) the transition people make in becoming vegetarians B) the process of jury selection used in the court system C) the process of becoming a citizen of a country D) the ceremony performed to welcome a new president is ... 
Health care
of the following is the coding system that was set up to describe specific products, supplies, and equipment that are used in medical practices, but that aren't listed in CPT? A. The ABC Code Set B. The National Drug Code C. CDT4 D. HCPCS D 
SCIENCE HELP!!??
Hello My question which is making me totaly confused is that my teacher has given me the test for starch slightly different to what the bbc website had gave The bbc website says : First of all you add the leaf into boiling water in order to kill it. Then you put it in a warm ... 
value
A Motor CarA Moves With Constant Speed Of 60km/hr; A Car B Starts Chasing Car A After 20minutes The Car A Passed, Where And When Car B Overtaking Car A If Acceleration 10km/hr? 
Algebra 1
A salesman starts a trip with 15 gallons of gasoline in his tank. After traveling 220 miles he has 10 gallons of gasoline in his tank. Model this relationship with a linear equation relating the number of miles you can travel to the remaining gallons of gasoline. Explain what ... 
Algebra
A salesman starts a trip with 15 gallons of gasoline in his tank. After traveling 220 miles he has 10 gallons of gasoline in his tank. Model this relationship with a linear equation relating the number of miles you can travel to the remaining gallons of gasoline. Explain what ... 
Physics
a 1000 kg car traveling at 30 m/s suddenly stops in 5 seconds. how much force was used to stop the car? 
Math
Sustem of equations. I have to solve the system of equations by graphing and solving. Ther are thirtythree students in the Chess Club. There are five more boys than girls in the club. Write and solve a system of equations to find the number of boys and girls in the chess club. 
physics
How long does it take an automobile traveling 62.0 km/h to become even with a car that is traveling in another lane at 37.5 km/h if the cars' front bumpers are initially 138 m apart? in seconds 
Trigonometry
A car with a wheel of radius 14 inches is moving with a speed of 55 mph. Find the angular speed of the automobile to the nearest mile per hour. I got 55/14 
Chemistry
Find the equilibrium constant. 1. The equilibrium constant for the reaction,! Fe3+ + SCN ⇋ FeSCN2+ (at a specific temperature), can be determined by first preparing a standard solution of FeSCN2+ and comparing its absorbance of light to an equilibrium system of unknown ... 
Math
A swimming pool size is 42 m long and 55 m wide with an average depth of 7.5 m. Using the density of water as 1 g/ml: A. how many gallons of water fill the pool B. The weight of water in lbs after the pool is full C. How long will it take to fill the ppol if a pump fills the ... 
physics
A massspring system oscillates on a horizontal frictionless surface with an amplitude of 3.35 cm. If the spring constant is 222 N/m and the mass is 0.580 kg, determine the mechanical energy of the system. Determine the maximum speed of the mass. Determine the maximum ... 
Chemistry II
Eugenol, the active ingredient in cloves, has a formula of C10H12O2. What is the boiling point of a solution containing 1.14g of eugenol dissolved in 10.0g of benzene? The boiling point of benzene is 80.1C and the boiling point elevation constant for benzene is 2.53C/m. I got ... 
math,correction
can someone correct this for me. Directions: Solve the following systems by using either addition or substitution. If a unique solution does not exist, state whether the system is dependent or inconsistent. 10x + 2y = 7 y = 5x + 3 the answer: The variable disappeared and 6 ... 
passing on species
I have to write an essay. I need some suggests as to where to start or some ideas as to what to write about. The topic is: One main biological objective for any living organism is to continue its species by reproducing and passing along genetic info. Discuss by way of example ... 
Physics
new package moving system in the new improved post office consists of a large circular disc which rotates once every 5 seconds at a constant speed in a horizontal plane. packages are put on outer edge of turntable on one side of room and removed on opposite side. coefficient ... 
Social Studies check my answers
1 which of the following is true of a parliamentary system of a government but not of a presidential system? the government is nnot regulated by a constitution the judicial ranch is part of an unelected senate the legislative assembly is determined by a national election the ... 
Physics
A spacecraft is traveling with a velocity of v0x = 5040 m/s along the +x direction. Two engines are turned on for a time of 801 s. One engine gives the spacecraft an acceleration in the +x direction of ax = 1.04 m/s2, while the other gives it an acceleration in the +y ... 
algebra
Two angles are complemtary. The large angle is 1 less than 6 times the smaller angle. which system could be used to determine the larger angle X and the smaller angle Y? 
Human Resources
What is the system used by organizations to determine or identify what human resources are needed by the organizaton? Take into consideration internal and external factors that influence an organization,s human reource needs. 
chemistry
a sample of sodium24 with an activity of 12 mCi is used to study the rate of blood flow in the circulatory system. If sodium24 has a halflife of 15 h, what is the activity of the sodium after 2.5 days. please show work. 
Math
Meagan bought a 3 liter soda and a bag of cups to a party. Each cup holds a volume of 250ml How many cups will be needed for soda 12 Ms.Baggett took a total of 3 hours to grade 120 papers Which of the following can be used to find m the number of minutes Ms.Baggett took to ... 
science
Of the following, which is NOT an adaptation made by reptiles to life on land? thick, dry, waterproof skin exchange oxygen and carbon dioxide in lungs only eggs with leathery shells open circulatory system I think its either C or B 
Chemistry
Imagine that your water heater has broken, but you want to take a bath. You fill your bathtub with 25kg of roomtemperature water (about 25C). You figure that you can boil water on the stove and pour it into the bath to raise the temperature. How much boiling water would you ... 
mgh
Read the description of The Stationery Stop provided in Appendix D. Think about the data and information that this company needs to store for business purposes. What type of database management system, if any, should be used to organize and manage that information? Explain ... 
math
A trough is 2 feet wide and 8 feet long with a crosssection that is triangular (equilateral). Water is being pumped in at 2 gallons per minute. How fast is the depth rising when it is 3 inches deep? How fast is the depth rising when it is 6 inches deep? When the depth is 1 ... 
physics
An automobile having a mass of 1750 kg is placed on a hydraulic lift in a garage. The piston lifting the car is 0.244 m in diameter. A mechanic attaches a pumping mechanism to a much smaller piston, 1.50 cm in diameter, which is connected by hydraulic lines to the lift. She ... 
Physics
A spacecraft of mass 2000kg, moves at a constant speed of 7800m.s in space. the main engine switched on for 10s during which time the exhaust gases travels at 10 000m.s. As a result of this, the craft travels at 8000m.s after 10s. Calculate the mass of the exhaust gas. 
History
Which of the following actions does NOT describe land and ownership in royal Georgia? A women were not allowed to own property B the largest land grants were limited to 500 acres C the headlights system was used to determine the size of a grant D land could be inherited 
Precalculuscheck answers
Describe the linear programming situation for this system of inequalities where you are asked to find the maximum value of f(x,y)=x+y. Answer: an optimal solution 2)Describe the linear programming situation for this system of inequalities: Answer: an optomal solution 
PreCalculuscheck answers
Describe the linear programming situation for this system of inequalities where you are asked to find the maximum value of f(x,y)=x+y. Answer: an optimal solution 2)Describe the linear programming situation for this system of inequalities: Answer: an optomal solution 
PreCalculus check answers
Describe the linear programming situation for this system of inequalities where you are asked to find the maximum value of f(x,y)=x+y. Answer: an optimal solution 2)Describe the linear programming situation for this system of inequalities: Answer: an optomal solution 
math
1) A tank holds water with a base 2 ft by 6 ft. If a rectangular solid whose dimensions are 1 foot by 1 foot by 2 feet is totally immersed in water, how many inches with the water rise? A)1/6 B)1 C)2 D)3 E)12 ^I got B 2) AB+BA= CDC IF each of the four letters in the sum above ... 
World History
what is the danger of Lenin's idea of party leadership? Lenins idea of party leadership was dangerous because in such a corrupt system, a party was terrible for the local environment. Many people would fight for the top leadership position. thanks. why did the Germans allow ... 
physics
1) A fask has the following features; a plastic stopper glass walls with silver coating on both sides vacuume between walls plasic spacer Which features of the flask reduce energy transfer by: a) radiation b) conduction c) convection 2) Many vacuume flasks have steel walls ... 
economics
You have been hired by a local used car dealer to help in their pricing of used cars. (Hey, it’s temporary thing, just to help you earn some extra cash.) They want to know whether the prices of the cars they sell are more influenced by the age of the car or by the mileage on... 
AP Chemistry
I am doing a lab on finding the molecular mass of a volatile liquid. I first need to find the volume of water in the test tube. (V= m/d) ... but how do I find the density of the water in the first place to use it in the equation? (I am not given the volume (it's what i'm ... 
Chemistry
Divers know that pressure exerted by the water increases about 100kPa with every 10.2 m of deptt. This means that at 10.2 m below the surface, the pressure is 201kPa; at 20.4 m, the pressure is 301kPa; and so forth. Given that the volume of a balloon is 3.5 L at STP and that ... 
AlgrebraSystems of Equations
A collection of dimes and quarters is worth $19.85. There are 34 more dime than quarters. Write a system of equations that can be used to find how many of each type of coin there are in the collection. 
Calculus
A road perpendicular to a highway leads to a farmhouse located 6 mile away. An automobile traveling on the highway passes through this intersection at a speed of 55mph. How fast is the distance between the automobile and the farmhouse increasing when the automobile is 2 miles ... 
Calculus
Find the volume of the solid of revolution obtained by revolving the plane region R bounded by y= x^5, the yaxis, and the line y=3 about the xaxis So far: y=x^5 is equal to x=5th root y. I've plugged that in to pi(r^2)h, and got V = pi ∫[0,3] y^(2/5) dy. so far I've gotten... 
history
( ) around my answer. If nothing is there then i don't know What is one important achievement of the Incas? A. a written language B. a system of democratic government C. a system of roads and bridges D. an accurate calendar What is one way in which the Incas increased their ... 
history
The automobile facilitated the idea of worshipping at the altar of materialism. The development of the automobile helped to change the American culture by allowing individuals another avenue to show wealth and treasure it, two critical elements of the New Era. Could someone ... 
Physics
A 325 kg boat is sailing 15.0 degrees north of east at a speed of 2.00 m/s. Thirty seconds later, it is sailing 35.0 degrees north of east at a speed of 4.00 m/s. During this time three forces act on the boat: a 31.0 N force directed 15.0 degrees north of east (due to an ... 
geometry math
There is an upsidedown cone that is 12m high and has a circular base with a radius of 4m that is being filled with liquid. Make V, the volume, a function of the height of the liquid, h. What is the volume of the cone when the water is 5m deep? V = (1/3)pi*r^2*h This formula ... 
Chemistry Lab
Data and Calculations: 1. Volume of water in calorimeter: 100.0 mL 2. Mass of water in calorimeter (water's density 1.00g/mL): 100.0g 3. Initial Temperature of water in calorimeter:19.5 degrees Celsius 4. Final Temperature of water in calorimeter: 3.0 degrees Celsius 5. Final ... 
physical
in a water tank is filled wiyh 1026 lter of water,we want to mixed sodium nirtride by 17% of the water,how much we used sodiume nitride in kilogram in to the water? 
college chemistry
Dry ice is solid carbon dioxide. Instead of melting, solid carbon dioxide sublimes according to the following equation: CO2(s)> CO2(g). When dry ice is added to warm water, heat from the water causes the dry ice to sublime more quickly. The evaporating carbon dioxide ... 
ap chemistry
The system CO2(g) + H2(g) *) H2O(g) + CO(g) is at equilibrium at some temperature. At equilibrium a 4.00 L vessel contains 1.00 mole CO2, 1.00 mole H2, 2.40 moles H2O, and 2.40 moles CO. How many moles of CO2 must be added to the system to bring the equilibrium CO ... 
AP Chemistry
The system CO2(g) + H2(g)<>H2O(g) + CO(g) is at equilibrium at some temperature. At equilibrium a 4.00 L vessel contains 1.00 mole CO2, 1.00 mole H2, 2.40 moles H2O, and 2.40 moles CO. How many moles of CO2 must be added to the system to bring the equilibrium CO ... 
Physics
Could you please check my answers and units.Also, help me with 3 and 4, I don't quite understand them. Thanxs! 1. An automobile starts from rest and accelerates at 3m/s2 for 4 seconds. How fast is it going after acceleration? I got 12 m/s 3. At time = 0 an automobile already ... 
math
The Green County school system has 2,997 high school students, 3,831 middle school students, and 5,084 elementary school students. How many total students are in the Green County school system? is it 11912 ? 
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 2L container 120 degrees C, determine the number of moles of H2O driven from the compound. 
Calculus
Rainflow is a new U Shaped system of guttering. The cross section is a semi circle with a radius of x topped by an open rectangle of height h. The total distance ABC is 20cm For which values of x and h will rainflow carry the most water ? 
Chemistry
A chemist needs to prepare a buffer using the carbonate system (information in the table in the previous quetion) with a final pH of 10. Which components should they mix in water to product this buffer? Question options: H2CO3 HCO3 CO32 
SOCIAL STDIES HELP!sss
1. Which of the following contributed to the rise of the Populist Party? (1 point) a sense of discontent and inequality felt by farmers and laborers an agreement with Republican politics a need to keep government exactly as it was a desire to see Democrats be voted out of ... 
Physics
An automobile has four tires, each one inflated to a gauge pressure of 176,357 Pa. Each tire is slightly flattened by its contact witht he ground, so that the area of contact is 21.9 cm by 17.9 cm. What is the weight of the automobile? 
Science ~CHECK MY WORK PLEASE~
Felipe made a toy boat out of clay, but it kept sinking in water. He changed the boat's design by making it slightly wider than before. Why did Felipe's newly designed boat float on water? A. He decreased the density by increasing the volume. B. He decreased the density by ... 
physics
A spacecraft is traveling with a velocity of v0x = 5690 m/s along the +x direction. Two engines are turned on for a time of 845 s. One engine gives the spacecraft an acceleration in the +x direction of ax = 1.35 m/s2, while the other gives it an acceleration in the +y ... 
geometry and trig
If a cylinder with a 4 inch diameter and a 6 inch height holds 1 pound of oatmeal. How much oatmeal will a cylinder (similar) with a 10 inch diameter hold? Volume of 4 in24pi volume of 10 in137pi I get 91 oz choiced are37,44,74, 192 
college physics
an automobile starts from rest and accelerates to a final velocity in 2 stages along a straight road. each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 3.0m/s^2. the magnitude of the car's velocity at the end of stage 2 is 2.5 ... 
Physics
An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 2.7 m/s2. The magnitude of the car's velocity at the end of stage 2 is 2.... 
physics
An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 3.5 m/s2. The magnitude of the car's velocity at the end of stage 2 is 2.... 
physics
An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 3.3 m/s2. The magnitude of the car's velocity at the end of stage 2 is 2.... 
physics
An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 2.03 m/s2. The magnitude of the car's velocity at the end of stage 2 is 4... 
physical
An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 3.19 m/s2. The magnitude of the car's velocity at the end of stage 2 is 2... 
physics
An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 2.84 m/s2. The magnitude of the car's velocity at the end of stage 2 is 2... 
physics
An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 3.12 m/s2. The magnitude of the car's velocity at the end of stage 2 is 3... 
Chemistry 12
4. a. Using Le Chatelier's principle, what effect will an increase of temperature have on the following system? H2O(l) + 57 kJ ↔ H+(aq) + OH(aq) b. What is the expression for the constant for this reaction? c. What effect will an increase in temperature have on the ... 
Chemistry
A Balloon Time® tank holds 15% excess capacity to fill 50 helium balloons measuring 9” or 0.5 ft3 in volume at 1 atm and 22 oC. The gauge pressure of a new tank is 260 psi. What is the volume of a Balloon Time® tank in ft3? 
physical science
A merchant in Kathmandu sells you a solid gold 1kg statue for a very reasonable price. When you get home, you wonder whether you got taken, so you lower the statue into a container of water and measure the volume of displaced water. Show that for 1 kg of pur gold, the volume ... 
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, ... 
Physics
A certain spring has a spring constant of 165 N/m. A 20kg mass is attached to the end of the spring. While the mass is at the equilibrium position, it is given a velocity of 8m/s downward. What is the total energy of the system, and aacceleration of the system when it is at ... 
math
After 75 gallons of oil are removed from a cylindrical thank, its level is lowered from 1/6 to 1/7 of its capacity. How many gallons should now be added to the tank to fill it? 
chemistry kinetics
The reaction SO2Cl2(g) → SO2(g) + Cl2(g) is a first order reaction carried out at constant volume at 600 K whose t1/2 is 4.1 hr. The initial pressure of SO2Cl2 is 1.25 atm. What will be the total pressure of the system after 1 hour? 
pre calc
Let t be time in seconds and let r(t) be the rate, in gallons per second, that water enters a reservoir: r(t)=700−40t. a) For 0≤t≤30, when does the reservoir have the most water? b) For 0≤t≤30, when does the reservoir have the least water? 
math, please help!!!!
Let t be time in seconds and let r(t) be the rate, in gallons per second, that water enters a reservoir: r(t)=700−40t. a) For 0≤t≤30, when does the reservoir have the most water? b) For 0≤t≤30, when does the reservoir have the least water 
Dynamics
a 1500 kg automobile is travelling upto 20 degrees inclined at a speed of 6m/s. 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 
dynamics
A 1500 kg automobile is treveling upto 20 degree incline at a speed of 6 m/s. if the driver wishes to stop his car in a distance of 5 m, determine the frictional force at pavement which must be supplied by rear wheels. 
Social Studies
Western democracies are referred to as representative democracies. They share a common ideology. However, when they transform theory into practice, differences occur. One important difference is a matter of emphasis. Should a system emphasize liberal or responsible principles... 
Social Studies
Out of the experience of an extraordinary human disaster that lasted too long, must be born a society of which all humanity will be proud. The time for the healing of the wounds has come. The moment to bridge the chasms that divide us has come. Never, never and never again ... 
11th grade
An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 3.3 m/s2. The magnitude of the car's velocity at the end of stage 2 is 2....