Wednesday
April 16, 2014

Posts by lisa


Total # Posts: 2,923

chemistry
I have the answers, I am just interested in the formulas so that I can solve the problems, thanks! 1. Find the boiling point of a solution composed of 110g of HgCl2 (a non-ionizing solute) in 175g of water. 2. Find the freezing point of a solution composed of 50g IBr in 120 g ...

trig
A car is on a driveway that is inclined 12 degrees to the horizontal. A force of 470lb is required to keep the car from rolling down the driveway. a) Find the weight of the car b) Find the force the car exerts against the driveway

Food and Nutrition
canada*

Food and Nutrition
How is "Healthy Ice-Cream Alternate Sandwich" a healthy recipe?? Ingredients: 10-12 ripe bananas 1/.5 cup of strawberries 22 graham crackers Procedure: 1)Mash the bananas and make a mixture with the strawberries and bananas 2)Freeze the mixture 3)put the mixture betw...

Food and Nutrition
thankyou this is what I needed. I appreciate your help

Food and Nutrition
this is only about a children's party..at parties wut affects their nutrtion for example a social challenge can be what their friends are eating they will eat. STUFF LIKE THAT

Food and Nutrition
I need to find the relationship between nutritional needs and : -social challenges -emotional challenges -physical challenges at childrens parties. I just want some points so I can expand my powerpoint

Food and Nutrition
I understand the assignment..i just can't think of some points that is why im on this website.. you don't understand what im trying to ask??

Food and Nutrition
i dont really know...

Food and Nutrition
Children's Parties The stage 'children (ages 4-12 years) Relationship between nutritional needs and: - physical challenges -emotional challenges -social challenges THESE RELATIONSHIPS REGARDING CHILDREN AT PARTIES AND FOOD.... i just need some points..

University
thx

University
yes so it doesnt matter whether i get a degree from college or university right? At workplace it will be treated the same right?

University
yeah that's why i putin Canada..bcz ik states go differently

University
Well so I applied to many Universities in Canada, and I applied to many colleges..I got into Bachelor of Child Development at Seneca college also Bachelor of Commerce. I don't think I will get into a University. Is it bad in the future if I have a degree from College not a...

english
Fascinated,Nina stared at the stranger.Who was standing in the doorway. She wondered if she could convince him they had met before. Where is the fragment and how do I fix it?

chemistry
what is the molecular mass of a gas if 0.833 g of it occupies 210 mL at 106.3 kPa and 8 degrees Celsius.

maths
i am a

Math please check my answer?
Thank you. :)

Math please check my answer?
This is my last question. What is the domain of the function below? f(x)= e^(x-4)-2 I got all real numbers is that correct?

Math
What is the domain of the function f(x)= x+6? I got -infinity < x < infinity

Math
What is the domain of the function f(x)= -3^(x+3)+4? I got (-infinity, infinity) is that correct?

Math
What is the domain of the function f(x)=2^(x+3)-1? I got (-infinity, infinity) is that correct?

Math
Rewrite the equation y - 37x = 82 as a function of x. I got f(x)= -37x +82 is that right?

Math
The length of a table is 3 1/3 inches. The width is 1/5 of length. Find the width and perimeter of table

Math
Today you deposited $5000 into a savings account paying 12% interest. How much should you have in 15 years?

english
Which synonym of the word look would be most effective in the following sentence? Detective Flint leaned forward with narrowed eyes to _______ what appeared to be a vital clue. A. survey B. scrutinize C. view D. ogle I think it would be B.

Math
Any began a running program she ran less than 5/6 of a mile what part if a mile could any have run

math
Eddie walked 3/4 miles from his home to the park then walked 2/4 miles from the park to the library which distances is shorter

Physics
what type of heat transfer does solar hot water heating use? (conduction, convection, radiation)

physical science
An airplane trvels with a velocity of 200 mi/h in a direction 30 deg. west of north of 1.50 h. How far north and how far west is it from its starting point?

Physics -- check answers please (new)
1. Which of the following best shows the transfer of heat by radiation? a) the hot sand in very painful to step on with bare feet b)the soup pot boils from the bottom towards the top c)the wood stove is painted a flat black colour for maximum heating effect d)the use of fossil...

Physics -- check answers please
1. Which of the following best shows the transfer of heat by radiation? my answer: c 2. Which of the following best shows the transfer of heat by convection? my answer: b 3. Water has specific heat of 4200 J per kilogram per degree celsius. This means that 2 kg of water will r...

US history
1. In the early years of the war, all reports coming to the USA had to be “cleared” through England. 2. In the 1916 presidential election, Republicans used the slogan “He kept us out of war” against Wilson. 3.Wilson’s Fourteen Points called for self-de...

Economics
A clinic has $1 million in revenues and $950,000 in costs. What is its operating margin? My answer is 5% However the second question is if the clinic invested $400,000. What is the return on investment and is it adequate. Not sure how I calculate that. Would I take the 5% of $...

Physics -- check answers please
1. what is 67 K equivalent to in Celsius? answer: -206.15 C 2. what is 458.9 Celsius in K? answer: 732.05 3. heat is closely related to: a)temperature b)thermal energy c)force d)convection currents answer: b 4. What does a low efficiency score reveal about a home in terms of h...

Chemistry
Oh okay, thankyou!

Chemistry
I know I'm suppose to use 3.86934 as the first volume and 10 kPa as the second pressure, but what am I suppose to use as the first pressure? Am I suppose to use 20.0 km?

Chemistry
A weather balloon with a volume of 3.86934 L is released from Earth’s surface at sea level.What volume will the balloon occupy at an altitude of 20.0 km, where the air pressure is 10 kPa? Answer in units of L

Physics -- check answers please
1. what is 67 K equivalent to in Celsius? answer: -206.15 C 2. what is 458.9 Celsius in K? answer: 732.05 3. heat is closely related to: a)temperature b)thermal energy c)force d)convection currents answer: b 4. What does a low efficiency score reveal about a home in terms of h...

science
unscramble rorpsfgnloaedeasi

Social studies
Help me to write an acrostic about motion.

Economics Supply and Demand
The demand function is Q=600-P with P being the price paid by consumer. I know the first P is $400 and Pnet is 160. There is 40% co insurance,. How do I figure out the quantity demanded? Our instructor said it was 440 but how do you get to that number?

IFSM 300
The sales department tells management that they can increase revenue by 20 percent by increasing sales 20 percent, but the production department says that to achieve that number of units, they will have to buy a new piece of equipment that will add $200,000 to the appropriate ...

IFSM 300
The sales department tells management that they can increase revenue by 20 percent by increasing sales 20 percent, but the production department says that to achieve that number of units, they will have to buy a new piece of equipment that will add $200,000 to the appropriate ...

Economics/Forecasting
If you anticipate that volume will increase at your clinics by 4% next year. Forecast visits for each clinic, and explain what assumptions underline your forecast. Can someone give me an example please not sure what it is asking.

Physics-check answer please (multiple choice)
1. A 2.5 kg mass at rest on a horizontal surface is acted upon by an applied horizontal force of 150 N. A frictional force of 100 N acts on the mass. How much work is done on the mass? my answer: would the work be 0? 2. When a rock is thrown straight up in the air, after it le...

math
Each user has a password 6 characters long where each character is an uppercase letter, a lowercase letter, or a digit. Each password must contain at least one digit. How long will it take to check every possible character combination, if each check takes one unit of time.

Physics -- check answers please
1. In moving an object of mass 10 kg through a distance of 8.0 m, 40 J of work is done. The average force exerted is? my answer: 320N 2. What is the kinetic energy of a 20 kg object moving at a speed of 10 m/s? my answer: 1000J 3. the gravitational potential energy of a bird o...

physics
how far does a wave travel in one period?

Physics -- check answers
1. In moving an object of mass 10 kg through a distance of 8.0 m, 40 J of work is done. The average force exerted is? my answer: 320N 2. What is the kinetic energy of a 20 kg object moving at a speed of 10 m/s? my answer: 1000J 3. the gravitational potential energy of a bird o...

chemistry
Electronegativity is a concept that is useful along with other concepts in predicting the polarity of a bond deciding how many electrons are involved in a bond formulating a statement of the octet rule determining the charge on a polyatomic ion

Chemistry
which of the following sets of elements is arranged in order of decresing electronegativity? O,S,As Cl, B, CL Br, Cl, P Be, C, O please explain correct answer

chemistry
what is the geometry of the molecular compound formed by the reaction of sulfur with hydrogen? linear angular trigonal planar tetrahedral please explain the correct answer

chemistry
VSEPR theory predicts that the geometry of AsH3 molecule is which of the following. linear trigonal planar trigonal pyramidal tetrahedral please explain the correct answer

math
convert 20 pounds to kilograms then round to the nearest tenth

american government
McCulloch v Maryland is an important case because it was one of the cases whereby the Supreme Court (Points : 1) asserted the supreme authority of Congress. asserted national authority over the states. upheld states’ rights. affirmed Maryland’s right to tax national...

american government
In Gibbons v. Ogden, the Supreme Court held that (Points : 1) states’ rights to regulate may not trample on powers specifically reserved for Congress. states’ rights supersede national authority. the national government does not have interstate commerce authority. t...

advanced functions
=the height in metres of a weather ballon above the ground after t seconds can be modelled by the function h(t)=-2t^3+3t^2+149, for 0<t<10. when is the ballon exactly 980 m above the ground?

Math
A killer whale has eaten 75 pounds of fish today. It needs to eat at least 140 pounds of fish each day. A bucket holds 15 pounds of fish. Write and solve an inequality that represents how many more buckets of fish the whale needs to eat?

Chemistry URGENT
Please show how N and O are combined to make NO^+2 in Lewis dot structure. I'm having a hard time. Thanks

Chemistry
three separate questions 1. An empty graduated cylinder weighs 82.450 g. When filled to 50.0 mL, with an unknown liquid it weighs 110.810 g. What is the density of the unknown liquid? 2. It is valuable to know that 1 milliliter (mL) equals 1 cubic centimeter (cm^3) or cc.). Ho...

Economics
It takes a phlebotomist 15 minutes to complete a blood draw. The supplies for each draw cost $4, and the phlebotomist earns $20 per hour. The phlebotomy lab is designed to accommodate 20,000 draws per year. What are the average and incremental costs of a blood draw when the vo...

statistics
Provide the Z score and the critical value. Raw score of 112, population mean 89, Std. of the population (22.8)

statistics
The test scores of students in a class test have a mean of 65 and with a standard deviation of 8. What is the probable percentage of students scored more than 70?

chemistry
In which of the following pairs of compounds are both members of the pair ionic compounds? Explain a. Pl3 and HBr b. H2S and NCl3 c. LiF and H20 d. LiI and NiO DrBob222 you said you would choose the answer d and I should know how to figure this out. I don't understand the ...

chemistry
the correct formula for the ionic compound containing Tl^3+ and Te^2- ions would be: a. TlTe b. Tl3Te2 c. Tl2Te3 d. Tl2Te

Chemistry
6 separate questions. I have figured out the other 20 questions I am stuck. Please help Thanks The correct name for the ionic compound Al2Se3 is? The correct name for the ionic compound Fe2Se3 is? the Roman numerall III in the name Iron(III)oxice indicates what? Which of the f...

chemistry
In which of the following pairs of compounds are both members of the pair ionic compounds? Explain a. Pl3 and HBr b. H2S and NCl3 c. LiF and H20 d. LiI and NiO

chemistry
the correct formula for the ionic compound containing Tl^3+ and Te^2- ions would be: Please show. thank you

Healthcare Economics
Your president bought two acres of land for $200,000 ten years ago. Although it is zoned for commercial use, it currently houses eight small, single-family houses. A property management fir that wants to continue leasing the eight houses has offered you $400,000 for the proper...

math
a train leave Chicago at a 115 miles per hour towards Denver another train leaves Denver 105 miles per hour towards Chicago if the distance between the two cities is 1200 miles how long would it take before the two trains meet?

calculus
If limit as delta x approaches 0 of tan(0+Δx)-tan(0)/Δx =1 which of the following is false: d/dx [tanx]=1 the slope of y = tan(x) at x = 0 is 1 y = tan(x) is continuous at x = 0 y = tan(x) is differentiable at x = 0

calculus
Suppose h(x) = f (g(x)) and the graphs of f and g are shown below. Describe the continuity of h at x = 0. how would you do this if you were given two graphs: F--- discontinuity at -2,0; point at -1,1; and point at 0,0 (to make a parabola) then discontinuity at 0,-1; and then c...

clalc
and the answer options are h is continuous at x = 0. h is discontinuous at x = 0 since h(0) is undefined. h is discontinuous at x = 0 since the limit of h(x) as x approaches 0 does not exist h is discontinuous at x = 0 since the limit of h(x) as x approaches 0 does not equal 0

clalc
Suppose h(x) = f (g(x)) and the graphs of f and g are shown below. Describe the continuity of h at x = 0. how would you do this if you were given two graphs: F--- discontinuity at -2,0; point at -1,1; and point at 0,0 (to make a parabola) then discontinuity at 0,-1; and then c...

calculus
Which of the following best describes the limit as x approaches 4 of the quotient of 2 times x divided by the quantity negative 2 plus square root of x ? It exists and equals 4 It fails to exist because it is unbounded. It fails to exist because its one-sided limits are not eq...

chemistry
6 part question 1. describe the appearance of a Bunsen flame that is getting insufficient air? 2. describe the appearance of a Bunsen flame that is getting too much air. 3. When inserting glass tubing into a rubber stopper, how far from the stopper should you hold the tubing? ...

chemistry
Two naturally occurring isotopes exist for the hypothetical element dippium. 25.0 percent of dippium atoms have a relative mass of 17.0 amu and 75.0 percent a relative mass of 21.3 amu. What is the atomic mass of dippium? Please show the work thanks

Physics
An airplane moves away from a stationary observer at 125 m/s and emits a frequency of 595 Hz on a day where the temperature is 25.0°C. What frequency does the observer hear?

CHEMISTRY
The grams of protein in 1 cup of soup that has 110 Cal{\rm Cal} with 7 g{\rm g} of fat and 9 g{\rm g} of carbohydrate. Express your answer using one significant figure.

Science
A 15.3 kg object is dropped from an initial height of 33.5m above the ground. Find the speed when it hits the ground.

Finance
Kim Davis is in the 40% personal tax bracket. She is considering investing in HCA (taxable) bonds that carry a 12% interest rate. a. What is her after-tax yield (interest rate) on the bonds? b. Suppose Twin Cities Memorial has issued tax exempt bonds that have an interest rate...

ashford
All of the following are true of what typically occurs when first meeting someone EXCEPT: (Points : 1) First impressions are based mostly on facial appearance. We form our impressions of others within less than a second of meeting them. We form conclusions about a person’...

math
A car company charges $35 per day plus 20 cents per mile to rent a car. Write an equation to express the average cost per x mile.

math
Find a function that models weekly profit in terms of price per feeder.

Chemistry
Hey can anyone help me solve these questions 1. Balance K2Cr2O7 +H2C2O42H2O --> K[Cr(CrC2O4)2(H2O)2]2H2O +CO2+ H2O 2. Calculate the theoretical yield of the reaction mentioned above 3.What is the theoretical percentage by weight of Cr in the reaction mentioned above 4. Why ...

Physics
A cubical block of wood 0.100 m on a side and with a density 550 kg/m^3 of floats in a jar of water. Oil with a density of 750 kg/m^3 is poured on the water until the top of the oil layer is 0.035 m below the top of the block. 1. How deep is the oil layer? Please tell me the i...

Integral Calculus
A jeepney's velocity over time in ft/sec as it moves along the x-axis is governed by the function v(t)=3t^2-10t+15. If the jeep's position at t= 1 second is 8ft, what is the total displacement made by the jeepney from t=0 to t=5sec? please I need help, i just need the ...

physics
A satellite is placed in orbit 100 km above the surface of the earth (radius = 6370 km, mass = 5.98 x 1024 kg). What is the value of the acceleration of gravity at that altitude as a percentage of the acceleration at the surface of the earth?

Physics Please check my answer
Thank You!

Physics Please check my answer
How much work is done by the centripetal force (in this case, the friction between the tires and the road) on a 1200 kg car moving on a circular track of radius 50 meters at a constant speed of 31.4 m/s? A. 7.4 • 10^6 J B. 19.7 J <--- C. 2136.7 J D. 117,600 J E. 0 J

scice help!?!?!?!
11. D 12. I believe that this one is either D or B. I'm pretty sure this one is D too, though.

Physics
A billiard ball traveling at 6.25 m/s collides with a second stationary ball of equal size and shape causing the second ball to move at an angle of 25º with respect to the horizontal at a speed of 3.0 m/s.Both balls have a mass of .210kg. What is the impulse of both balls...

Physics
I really need help with this problem. A billiard ball traveling at 6.25 m/s collides with a second stationary ball of equal size and shape causing the second ball to move at an angle of 25º with respect to the horizontal at a speed of 3.0 m/s.Both balls have a mass of .21...

Physics
A billiard ball traveling at 6.25 m/s collides with a second stationary ball of equal size and shape causing the second ball to move at an angle of 25º with respect to the horizontal at a speed of 3.0 m/s.Both balls have a mass of .210kg. What is the impulse of both balls...

MATH
Owen has 20% more marbles than Danny. Danny has 40% less marbles than Connie. Owen has 21 marbles less than Connie. How many marbles does Danny have?

math
A tank contains 4L of water at first. Tap A is turned on and water from tap A flows into the container at the rate of 8L per minute. After 3 minutes, Tap B is turned on. Both taps are turned off together after another 5 minutes. If the total amount of water in the container is...

Math
Recall that the equation for the horizontal distance h in feet of a projectile with initial velocity v0 and initial angle theta is given by h=v0^2/16 sin theta cos theta . a. Assume the initial velocity is 60 ft/second. What initial angle will you need to ensure that the horiz...

Ashford
According to to scholars what is one way the advent of talking pictures changed the behavior of movie audiences

Astride university
What is the correct technical name for the music that plays in the background of a scene while the action takes place

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