Questions Asked on
August 12, 2011

Physics
To raise the temperature of a 2.0kg piece of metal from 20ºC to 100ºC, 61.8 kJ of heat is added. What is the specific heat of this metal in kJ/(kg.K)? Question 1 options: A) 0.39 B) 0.31 C) 1.6 D) 1.2 E) 0.77
asked by ZuenLee 
chemistry
One mole of each of the following compounds is strongly heated and any gas produced is collected at room temperature and pressure. From which compound is 24dm3 of gas likely to be collected? (One mole of any has occupies 24dm3 at room temperature nd
asked by mimzymo 
Trig/precalc
r=8cos(theta)+5sin(theta), convert the polar equation into a rectangular equation and then complete the square and determine the center radius...? Help?! I missed the section, and am not getting anywhere with the text...
asked by A 
Pen Foster
checking my answers in Introduction to Allied Health anyone have that one?
asked by melanie 
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)
asked by Maya 
math
a peanut butter jar has a height of 5.9in and diameter of 3.6 in. one cubic inch holds 0.45 oz of peanut butter. How many ounces will fit in the jar
asked by christina 
science
A runner completes one full lap around a 400 meter track. What is her displacement?
asked by abu 
psychology
the means of travel within and between neurons is different because: a. electrical signals move impulses within the neuron, while chemical signals move the impulses between neuron. b. chemical signals move the impulses within the neuron, while electrical
asked by lachelle mitchell 
trig
A tower is supported by a guy wire from the top of the tower to the ground 16 ft from its base. The wire makes an angle of 62 with the ground. The length of the wire is a. 30.09 ft b. 18.12 ft c. 28.41 ft d. 34.08 ft
asked by Val 
Chemistry
A sample of zinc metal reacts completly with an excess of hydrochloric acid: Zn(s) + 2HCl(aq) > ZnCl2(aq) + H2(g) The hydrogen gas produced is collected over water at 25.0 °C. The volume of the gas is 78.0 L & the pressure is 0.980 atm. Calculate the
asked by ChemLover 
math
The distance from the center of a round table top to the edge of the table top is 4 ft. What is the area of the table top?
asked by ray 
geometry
jo was comparing two cylinders that both had a radius of 5cm. the first had a height of 10cm, and the other a height of 20cm. How many times greater was the volume of the larger cylinder?
asked by christina 
Physics
A river flows due East at 0.979 m/s. A boat crosses the river from the South shore to the North shore by maintaining a constant ve locity of 12.8 m/s due North relative to the water. The river is 306 m wide. What is the velocity of the boat relative to
asked by Nicole 
World History Honors
Hi! Can anyone help me with this assignment...? Using the primary source documents and information from your chapter, form a thesis that describes why Herodotus referred to Egypt the way he did (Why he referred to Egypt as the “gift of the Nile.”)
asked by mel 
geometry
what is the perimeter of a square if both sides were 17 cm
asked by joseph 
math
Biologists have noticed that the chirping rate of crickets of certain species is related to temperature, and the relationship appears to be very nearly linear. A cricket produces 113 chirps per minute at 70 degrees Fahrenheit and 173 chirps per minute at
asked by Christa 
fractions
How can i draw fraction strips to show that 2/5 is equal to 6/15
asked by lisa 
Biology
There are many differences between the two major cell types: prokaryotes and eukaryotes. However, the different structures and modes of organization perform basically the same functions. Briefly compare and contrast the different features or functions of
asked by Chandler 
Math
Find cos(theta) if (15, 8) is a point of the terminal side of theta.
asked by Britt 
AlgebraMatrix
What element is a location a_23 of matrix A, if 4 3 4 5 0 6 7 2 8 I have the answer at 6 Is this correct?
asked by lizzie 
geometry
how many milliliters of soup will this hemispherical bowl hold?(1cm cubed holds 1mL) Radius= 7 cm
asked by christina 
math
a bowling ball has a diameter of 8.4 in. It is made of plastic that weighs 0.05lb/in cubed.Find the weight of the bowling ball
asked by christina 
math
a steel cargo container is shaped like a cube measuring 5.2ft on each edge. How much steel is needed to make this container?
asked by christina 
math
A classroom measures 32ft long, 25ft wide, and 9ft high. The combined area of doors and window is 140 ft^2. What is the remaining area of the four walls of the room?
asked by christina 
math
a cube with 2inch sides is placed on a cube with 3inch sides. Then a cube with 1inch sides is placed on the 2inch cube. What is the surface area of the three cubes?
asked by christina 
WORLD GEO.
The two largest metropolitan areas in Canada are Toronto and A. Montréal. B. Edmonton. C. Ottawa. D. Vancouver.
asked by DEON 
Math
Determine the minimum furnace output for a 2200 square ft house using the formula B=28a
asked by Tamara 
Physics 2010
Which has the greater kinetic energy: a bowling ball that slides down the lane without rolloing, or one of the exact same mass that moves at the same translational speed but rolls without slipping?
asked by Adam 
English
does this sentences seem correct and well puctauted. if not can you correct them kindly. 1) America’s credit crisis caused a fragile financial system, which may go bankrupt in the near future. 2)Leaders are born, and their contributions to this world are
asked by pria 
Am. History
During the 1820's and 1830's a distinct American culture began to emerge. what was this called? I think it is American Popular Culture.
asked by Stacy 
biology
What are two behaviors in either a plant or animal that demonstrates a circadian rhythm?
asked by Sal 
fp 101
Your household cash flow helps to determine this C: Capacity Under these __________, you may still be approved with a cosigner Conditions This demonstrates how much your assets are worth. (Capital) Using your car or house as a promise to pay (Collateral)
asked by heather 
English
i don't know if the following sentence i wrote makes sense and punctuated properlly. please correct me if im wrong. the sentence i wrote is based on the fact that when leaders get power, they try to win time but alwys fail. hers the sentence: Thus, we
asked by pria 
CRT/205
I just want to make sure I am on the right track with this assignment. I have answered the questions about an article but I struggle with premises and conclusions. I just want to know if I have answered the questions appropriately. Here is the article I
asked by vc23 
Science
A synonym for remediation could be
asked by Anonymous 
Science
According to Peter Saundry there is no true universal code of ethics because standards of conduct vary from placetoplace and time to time. True or false
asked by Tina 
algebra
16540=2500 using an algebrac equation problem what is x
asked by kate 
English COM 155
♦ Stacy's financial information is securely stored online. (Stacy's financial information)? ♦ Aaron's bank statement should be stored securely online with Stacys. (Aaron's bank statement)? ♦ Seth's students are learning how to effectively store
asked by heather 
soc/105
how are we affected by globalization without the internet
asked by Anonymous 
biology
In reference to plant and animal adaptations, how are the principles of heredity and genetics applicable to how organisms change over time?
asked by Anonymous 
Soc/105
Can you think of any other ways we "see" or are affected by globalization every day that is NOT related to the internet?
asked by Anonymous 
math
Jeff bought 3 bags of dog food. He also bought a set of new dog bowls that cost eighteen dollars . He spent a total of fortyfive dollars. Write both the verbal and mathematical equation to find out how much Jeff paid for each bag of dog food
asked by drea 
AlgebraMatrix
How would I do these Matrices? 1. 1/2 14 10 8 2, Let matrix A = [8 2 4 7 ] Let matrix B = 2A, Find b_22
asked by lizzie 
physics
a body displaced 12m due to east then 5m due to north then 9m vertically upward what is the resultant displacement?
asked by gallium 
Math
Simplify the following expression, and rewrite it in an equivalent form with positive exponents. 15x^4y/17x^2y7 A. 3x^2/y^6 B.3x^2/y^6 C.3x^6y^8 D. 52x^2/y^6
asked by Donnice 
english
My dogs name is Daisy. or My dog's name is Daisy. Is the second sentence correct?
asked by heather 
physics
a body displaced 12m due to east 5m due to north then 9m vertically upward what is the resultant displacement?solution with complete reason n figure
asked by armando 
physics
is there is error in accurate value?why
asked by armando 
physics
is constant acceleration reverse its direction?why
asked by armando 
algebra
Can you sketch the y=x+9 equation?
asked by Christine 
mathfunctions
A car purchased for $11900 has a resale value of $2000 after 10 years. Assuming its resale value decreased linearly over these years, what was the resale value of the car after 3 years?
asked by Christa 
bioinformatics
can you find if any of the probesets found found significant by the previous SAM analysis represents a gene representd by multiple probesets
asked by Anonymous 
bioingormatics
how to set the option of the function aafTableAnn(probeids,chip,colnames=aaf.handler(chip=chip), widget=FALSE)
asked by Anonymous 
Statistics
Each year, approximately 160 colleges compete in the National Concrete Canoe Competition. Each team must design a seaworthy canoe froma a substance not known for its capacity to float. The canoes must weigh between 100 and 350 pounds. Find the midrange.
asked by Cassandra 
values and ethics....please help me
is anyone can help me for my exam to make a reflection of this subject.below... “People forget how fast you did a job – but they remember how well you did it.”
asked by jessie 
college writing
Instructions: revise to remove fragnments and/or parallelism errors. ?1. I like basebal because it is fun and teaches me about the sport.
asked by Tanieka Birden 
values and ethics subject please help me urgent pls
miss sue can you help me and example.or anyone can help me to make a relection of this subject...thank you.. “People forget how fast you did a job – but they remember how well you did it.” howad newton
asked by jessie 
chemistry
When reacting 100 mL of 2 M HCl with 100 mL of 2 M NaOH, how many milliliters of water should be produced? (REM: Density of Water)
asked by Starr 
CRITICAL THINKING
Which of the following, if true, would best explain the material presented in the table?
asked by Anonymous 
phsical
A ball is tossed vertically upward from a height of 2 m with an initial velocity of 10 m/s. Just before the ball hits the ground, its velocity will be what?
asked by abu 
physical
A runner moving at a velocity of 6 m/s increases the velocity in a 2 s time interval to a rate of 10 m/s. What is the rate of acceleration?
asked by abu 
physical
A ball rolling across a field with an acceleration of 0.5 m/s rolls 12.5 m and then comes to a stop after 8 seconds. What was the ball's initial speed?
asked by abu 
biomechanic
How much force must be produced by the biceps brachia at a perpendicular distance of 3 cm from the axis of rotation at the elbow to support a weight of 200 N at a perpendicular distance of 25 cm from the elbow?
asked by abu 
light
an object 5 millimeters high is located 15 millimeters in front of a plane mirror. how far from the mirror is the image located?
asked by Anonymous 
algebra
: if the formula R=0.037t + 50.1 can be used to predict the world record in the 400 meter dash t years after 1925, for what years will the world records be 48.1 seconds or less.
asked by jackie 
writing and composition
I am having a hard time coming up with a thesis statement for my paper on medical billing and coding.
asked by trenquillia 
Physics
1.9 mol of gas at a temperature of 180 C fills a 3.4 L container. What is the gas pressure? Never been good at physics or mol stuff, how do you set it up?
asked by Catie 
Chemistry
Describe the physical and chemical changes that occur in grains during cooking.
asked by Tootsie 
geometry
the base of the semicircle 12ft. what is the area?
asked by lme 
English
Write one paragraph of eight to twelve sentences persuading a friend to enroll in Penn Foster by describing at least three advantages of distanceeducation with Penn Foster compared to a traditional school education. Use the comparisoncontrast order for
asked by Abdullah 
writing
If I could get some help? I was wonderung if I had done this right.Write two paragraphs about how interest rates affect our purchasing decisions. Identify the topic sentence in each by underlining it. I have determined that the first two sentences in each
asked by Anonymous 
Physics
A proton is fired with a speed of 3.00 X 10^6 m/s directly towards a large and positively charged plane of surface charge density +9.25 X 10^7 C/m^2 . If the proton starts 1m from the plane, the minimum distance between the proton and the plane is closest
asked by Joordan 
english
♦ I store my finacial documents in a fire proof safe. (documents) ♦ Its a good idea to have extra copys of financial information incase your origanal is damaged. (copys) ♦ To store financial information properly I need to organize all of the bank
asked by heather 
Calculus
Find the area of the region enclosed by y−2x^2 ≥ 0 and x+y ≤ 1
asked by Lindsay 
physics
If the earth acceleration due to gravity on a mass of 2000kg on the earth surface is 10ms.What will be the acceleration due to gravity when it is at a point twice the radius of the earth.What is the gravitational force on it.
asked by Boniface 
Mathes
The radius of the circular base of the larg tin is 5 cm the height is 10,5 cm .calculate the volume of the large tin of jam .use the formula v=nr2h and use n =3,14
asked by Segopotso makhubedu 
bagnan high school
An airplane has a speed of 600 km h −1 with respect to air. It has to fly a distance of 800 km northward. In what direction should it fly if a steady wind is blowing at a speed of 120 km h −1 from the west? What will its speed with respect to the
asked by kousik jyoti 
entrepeneurship
What are the characteristucs of busi ness that is future oriented
asked by Anonymous 
medical transcription 2
PLEASE CAN SOME ONE POST THE ANSWER FOR Exam 40988300A Transcription Assignment 6: Diagnostic Imaging/ Interventional Radiology TE#13: MRI brain for Edgar Jorda Read more: penn foster medical Transcription.....thank you!
asked by kane 
math
If a person took a survey and there were scores 15 Poor=1 Fair =2 Average =3 Good =4 Excellent =5 The response was. (1) for average (6) for good (2) for excellent. 9 total questions... How do I figure out the average chosen score?
asked by KIm 
consumer math
The ____________ is the amount a person is paid per hour for working more than the regular number of hour per week.
asked by derricj 
math
in a bike race, ramit and keith started at the same time abd rode with constant speeds. Ramit rode 30 miles per hour, and keith rode at 35 miles per hour. If ramit crossed the finish line 10 minutes after keith, how many miles long was the race?
asked by kel 
Math Help
When asked for standard deviation when dealing with grouped data for linear regression, do you give them for each the x and y variable or is there a way to configure for grouped data set? I have a Ti 84 plus calculator
asked by Brad