Questions Asked on
July 19, 2013

physics
The same amount of heat entering identical masses of different substances produces different temperature changes. Calculate the final temperature when 1.25 kcal of heat enters 1.25 kg of the following, originally at 20.0°C. (a) water (b) concrete (c)
asked by Eric 
quantitative methods for business
Metropolitan Bus Company purchases diesel fuel from American Petroleum Supply. American Petroleum Supply charges $250.00 to cover delivery expenses. The lead time for a new shipment from American Petroleum is 10 days and the cost of holding a gallon of
asked by trai 
physics
Rubbing your hands together warms them by converting work into thermal energy. If a woman rubs her hands back and forth for a total of 12 rubs a distance of 7.50 cm each and with a frictional force averaging 30.0 N, what is the temperature increase? The
asked by Eric 
Math 140
To help pay for a class trip at the end of the senior year, the junior class at a high school invests $1800 from a fundraiser in a 18month CD paying 2.6% interest compound monthly. Determine the amount the class will receive when it cashes in the CD
asked by Pamela 
Calculus
Find f(x) by solving the initial value problem. f '(x) = 3ex  4x; f(0) = 10 f(x) =
asked by Anonymous 
quantitative methods for business
Cress Electronic Products manufactures components used in the automotive industry. Cress purchases parts for use in its manufacturing operation of different suppliers. One particular supplier provides a part where the assumptions of the EOQ model are
asked by trai 
Chemistry
You dissolve 1.05 grams of an unknown diprotic acid in 200.0 mL of H2O. This solution is just neutralized by 5.00 mL of a 1.00 M NaOH solution. What is the molar mass of the unknown acid?
asked by Tayla 
quantitative methods for business
El Computer produces its multimedia notebook computer on a production line that has an annual capacity of 16,000 units. The cost to set up the production line is $2345, and the annual holding cost is $20 per unit. Current practice calls for production runs
asked by trai 
Calculus
Find the amount of an annuity if $210/month is paid into it for a period of 20 yr, earning interest at the rate of 8%/year compounded continuously. (Round your answer to two decimal places.) $
asked by Anonymous 
physics
An ice bag containing 0°C ice is much more effective in absorbing heat than one containing the same amount of 0°C water. (a) How much heat in kcal is required to raise the temperature of 0.700 kg of water from 0°C to 27.0°C? (b) How much heat is
asked by Eric 
quantitative methods for business
A product with an annual demand of 1000 units has Co = $25.50 and Ch = $8. The demand exhibits some variability such that the leadtime demand follows a normal probability distribution with μ = 25 and σ = 5. 1. What is the recommended order quantity? 2.
asked by trai 
physics
A lumberjack (mass = 98 kg) is standing at rest on one end of a floating log (mass = 200 kg) that is also at rest. The lumberjack runs to the other end of the log, attaining a velocity of +4.0 m/s relative to the shore, and then hops onto an identical
asked by Anonymous 
Calculus
The management of Lorimar Watch Company has determined that the daily marginal revenue function associated with producing and selling their travel clocks is given by R '(x) = 0.003x + 12 where x denotes the number of units produced and sold and R '(x) is
asked by Anonymous 
physics
A 2.60 kg steel gas can holds 15.0 L of gasoline when full. What is the average density of the full gas can, taking into account the volume occupied by steel as well as by gasoline? Please show the steps, thanks.
asked by Eric 
Chemistry
Which statement about resonance structures is TRUE: 1) There can never be more than two resonance structures for any molecule. 2) Only ionic compounds use resonance structures 3) The real structure of a molecule is an average or hybrid of the resonance
asked by Michelle 
quantitative methods for business
A perishable diary product is ordered daily at a particular supermarket. The product, which cost $1.19 per unit, sells for $1.65 per unit. If units are unsold at the end of the day, the supplier takes them back at a rebate of $1 per unit. Assume that daily
asked by trai 
Calculus
The management of the Titan Tire Company has determined that the quantity demanded x of their Super Titan tires/week is related to the unit price p by the relation p = 144 − x^2 where p is measured in dollars and x is measured in units of a thousand.
asked by Anonymous 
Calculus
Find f (x) by solving the initial value problem. f '(x) = 6x^2  10x; f(2) = 5 f(x) =
asked by Anonymous 
chem 2
A buffer solution is made using a weak acid, HA. If the pH of the buffer is 1.0 × 101 and the ratio of A– to HA is 10, what is the pKa of HA?
asked by Brianna 
science
The separation of homologous chromosomes is called: A. synapsis. B. segregation. C. mitosis. D. fertilization. im confused between B n C
asked by Amy 
physics
A 3.00 g lead bullet traveling at 640 m/s strikes a target, converting its kinetic energy into thermal energy. It's initial temperature is 40.0°C. (a)Find the available kinetic energy of the bullet.(J) (b)Find the heat required to melt the bullet.(J)
asked by Eric 
english
"There's four kinds of folks in the world. There's the ordinary kind, like us and the neighbours, there's the kind like the Cunningham's out in the woods, the kind like the Ewell's down at the dump, and the Negroes." what rhetorical device or fallacy is
asked by sarah 
Science
The separation of homologous chromosomes is called: A. synapsis. B. segregation. C. mitosis. D. fertilization. is it C 2. In humans, the genes for blood type A and B show lack of dominance to one another and both dominate O. Two type O people would be able
asked by Amy 
science
3. The sex of mammals is determined by: A. the autosomes they receive. B. the type of sex chromosomes received. C. the number of recessive chromosomes received. D. None of these answers is or may be a factor. is it B
asked by Amy 
MATH
A frustrated office worker throws his laptop out of his business’s highrise office building. The height, h, in meters of the laptop above the ground at t seconds can be modelled by 2 h(t) 125 5t . Estimate the instantaneous rate at which the laptop hits
asked by ROBIN 
english
The older you grow the more of it you’ll see. The one place where a man ought to get a square deal is in a courtroom, be he any color of the rainbow, but people have a way of carrying their resentments right into a jury box. As you grow older, you’ll
asked by sarah 
algebra
y=(v/u)x+(g)/(2(u^2))*x^2 where y is the object's vertical distance (in feet) above from where it was thrown x is the object's horizontal distance (in feet) away from where it was thrown and u is the objects' initial horizontal velocity v is the object's
asked by Geoff 
quantitative methods for business
A manager of an inventory system believes that inventory models are important decisionmaking aids. Even though often using an EOQ policy, the manager never considered a backorder model because of the assumption that back orderes were “bad” and should
asked by trai 
math
use mathematical induction to prove 1/2^n = 1/2^n  1
asked by o 
physics
The formation of condensation on a glass of ice water causes the ice to melt faster than it would otherwise. If 7.40 g of condensation forms on a glass containing water and 210 g of ice, how many grams will melt as a result? Assume no other heat transfer
asked by Eric 
MATH
2tan^2xtanx1=0 0
asked by ROBIN 
MATH
A frustrated office worker throws his laptop out of his business’s highrise office building. The height, h, in meters of the laptop above the ground at t seconds can be modelled by h(t)=125=1255t^2 Estimate the instantaneous rate at which the laptop
asked by ROBIN 
english
“Boys don’t cook.” What type of rhetorical device or fallacy is this? :“…what are you doing in those overalls? You should be in a dress and camisole, young lady!” what type of rhetorical device or fallacy is this?
asked by sarah 
physics
A clock is made out of a disk of radius R=10 cm which is hung by a point on its edge and oscillates. All of a sudden, a circular part right next to the hanging point of radius R2 falls off, but the clock continues oscillating. What is the absolute value of
asked by Anonymous 
Science
__________ describes how a cell makes a protein from the protein coding sequence of a gene. A. Transcription B. Gene expression C. Translation D. Gene phrasing i'm confused between A and C
asked by Amy 
Calculus
Mathematica Project  Position, Velocity, and Acceleration? A rocket is fired vertically upward into the air from a launching platform 100 ft above the ground. The platform is then retracted, and the rocket is allowed to fall to the ground. The height (in
asked by Ken 
MAT LAB
HW9_1: AXIAL AND TRANSVERSE STRAINS  THE POISSON'S RATIO When no loads are applied, the isotropic elastic block depicted below is a cube of side L0=200 mm. When the distributed load (surface traction) q=200 MPa is applied as shown below, the side length
asked by AMK 
experimental psychology
If science depends on observation of empirical data, how can social scientists study non observable phenomena, such as though patterns or imagery?
asked by Me 
math
The area of a rectangle is 72 square inches and the perimeter is 44 inches. Find its dimensions.
asked by Anonymous 
vivekanand H s SCHOOL
the difference of ages between 2 sisters is 10 years, 15 years ago elder 1 was twice as old as younger age. find the both present age?
asked by shankar 
Calculus
In a study conducted by a certain country's Economic Development Board, it was found that the Lorentz curve for the distribution of income of college teachers was described by the function f(x) = 13/14x^2 + 1/14x and that of lawyers by the function g(x) =
asked by Anonymous 
physics
In 0.511 s, a 13.1kg block is pulled through a distance of 3.13 m on a frictionless horizontal surface, starting from rest. The block has a constant acceleration and is pulled by means of a horizontal spring that is attached to the block. The spring
asked by Anonymous 
psychology
critical thinking involves being to:
asked by mek 
Statistics Help !!!!
Are my answers here correct ? Research questions for z test, t test for independent samples and t test for dependent samples : z test: "An investigator is interested in finding out whether the particular sample of college students is similar to or
asked by Tise 
physics
Telephoto lenses allow one to "zoom in" on distant objects, making them bigger. A particular telephoto lens consists of a combination of two thin lenses having focal lengths of f1=20 cm and f2=−8 cm, respectively. The lenses are separated by a distance
asked by Anonymous 
math
How would you show the work for this. Bills locker is 30 inches tall, 10 inches wide, and 14 inches deep. If his books take up 1,545 in. of space, how much space does he have left to hang his coat and bookbag? Thank you
asked by sam 
math
Which point is located on the yaxis of a coordinate plane? 6,0 3,2 6,6 0,6
asked by sam 
Finance
Consider the following information and calculate the required rate of return for the Winkler Investment Fund. The total investment fund is $2 million. Stock Investment Beta    A $ 200,000 1.50 B 300,000 0.50 C 500,000 1.25 D 1,000,000
asked by ahmad 
english
Ms sue please check and correct whst I have wriiten
asked by kirat 
Statistics
A research article reports the results of a drug test. This medicine used to reduce vision loss in people suffering from macular degeneration. The article state p = 0,04 section findings. The following issues are of three different interpretations of this
asked by Andrew 
MATH
Create a graph of a function given the following information: The instantaneous rate of change at x = 2 is zero. The instantaneous rate of change at x = 3 is negative. The average rate of change on the interval 0
asked by ROBIN 
Geometry
The area of a rectangle is 72 square inches and the perimeter is 44 inches. Find its dimensions.
asked by Anonymous 
Algebra
True or False. 1. If the radicand is a multiple of a perfect square number, then the radical is not in its simplest form. 2. The value of the cube root of 1/8 is not a real number because the radical is negative. 3. The fifth root of a negative number is
asked by Paula 
bio
is about blood flow. if i start in the superior mesenteric vein vein to finish in the left anterior circumflex humeral artery by the way of the hepatic portal vein and the heart. what is the right way?
asked by mary 
Math
What is the volume of the structure bounded by the regions x^2+2y^2+z≤16, 0≤x≤2, 0≤y≤2 and z≥0?
asked by Anonymous 
Science
__________ reproduces many varieties of fruit trees and other plants by making cuttings of the plant and rooting the cuttings. A. Cloning B. Sexual reproduction C. Meiosis D. Somatic cell transfer is it A
asked by Amy 
english
Imagine you are a tainted cricketer exposed for your role in the match fixing scandal.Write a diary entry highlighting your regret ,reasons why you got tempted and the lesson you have learnt . (80100 words)
asked by kirat 
Global history
How did the use of machines brings about a major change in the lives of people in great people?
asked by Simran 
english
Ms sue you mean to say its correct ? Is there anything else I write in addition to it or improve what I have written
asked by kirat 
MATH
f(x)=3x+2 g(x)=2x+1 a) Write an equation for ( f+ g)(x) b) Determine (f+g)(6) c) Determine (fg)(6) d) Determine the domain of (f/g)(x)
asked by ROBIN 
Statistics
An environmentalist do a study to investigate the effects of a specific herbicide in fish. Has 60 healthy fish and randomly distributes any fish or in the experimental group or the control group. The fish in the experimental group have higher indices
asked by Andrew 
math
The perimeter of a fence is 84 meters. If the width is 2 meters less than the length, find the width
asked by jerry 
math
What percent of the total number of states does each of the 50 states represent?
asked by vincent 
English
Why is it a little odd to say "I work at nights"?
asked by Anonymous 
princ
A modulating wave has a peak value of 2 volts while the carrier wave equation for the voltage is 1.2 sin (20t + 15°).Determine the modulating index.
asked by principles of communication 
algebra
A poll was taken of 100 students at a commuter campus to find out how they got to campus. The results were as follows: 28 said they drove alone. 37 rode in a carpool. 27 rode public transportation. 8 used both carpools and public transportation. 8 used
asked by mary 
Physics
What is the formula to find magnetic field at the centre of the solenoid of hollow iron core??
asked by Anonymous 
chem
waht is the kinetic energy in joules of 780lb motorcycle moving at 54 mph?
asked by sam 
math
what is the quotient of 3/4 divided by 3?
asked by sam 
Chemistry
Calculate the mass (in grams) of sugar, C12H22O11, in 166.4 mL of a 1.79 M solution of sugar.
asked by Leigh 
math
f(x) and f′(x) are continuous, differentiable functions that satisfy f(x)=x^3+4x^2+∫(from 0 to x)(x−t)f′(t) dt. What is f′(5)−f(5)?
asked by Anonymous 
socials 11
what did the automotive products agreement change between canada and the us?
asked by alyssa 
Media/Social Science
What is the theory of Habermas? How would you explain the theory of communicative rationality? How do you think the thoughts of Habermas apply to the real world?
asked by Karen 
calculus (point me in the right direction please?)
f(x) and f′(x) are continuous, differentiable functions that satisfy f(x)=x^3+4x^2+∫(from 0 to x)(x−t)f′(t) dt. What is f′(5)−f(5)?
asked by andy 
MATH
(1)/(sin(x)cos(x))=cos(x)+sin(x)
asked by ROBIN 
english
Ms sue. Please write the article for the earlier mentioned topic
asked by kirat 
coleje
find the domain of range of integer f(x)=int (x)+3
asked by ardalan 
marleting
which of the following trends is causing marketers to place more emphasis on competitive differention
asked by Jasmine