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2011
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Questions Asked on June 15, 2011

Use the standard reaction enthalpies given below to determine ΔH°rxn for the following reaction:2 NO(g) + O2(g) → 2 NO2(g),
1. 3 answers
2. asked by Amber
3. 23,979 views
Two forces, of magnitudes F1= 80.0N and F2= 50.0N, act in opposite directions on a block, which sits atop a frictionless
1. 3 answers
2. asked by physics please show steps
3. 13,292 views
3. At t = 0 , a particle leaves the origin with a velocity of 9.0 m/s in the positive y direction and moves in the xy plane with
1. 1 answer
2. asked by ameer
3. 7,413 views
According to the following thermochemical equation, what mass of H2O (in g) must form in order to produce 975 kJ of energy?SiO2(
1. 4 answers
2. asked by Amber
3. 7,194 views
In 6.20 h a 100 g sample of ag 112 decays to 25 grams. what is the half life of ag 112.I think the answer is 3.10 but I'm not
1. 3 answers
2. asked by Jackie
3. 4,649 views
A 4.98 g sample of aniline (C6H5NH2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter with a heat capacity of 4.25
1. 10 answers
2. asked by Amber
3. 4,315 views
A golf ball is given an initial speed of 20 m/s and returns to ground level. Which launch angle above level ground results in
1. 1 answer
2. asked by Julie
3. 3,775 views
The area of a square is 121 sq feet. What is the length of its sides? Would I find this by dividing 121 by 4?
1. 5 answers
2. asked by Phillip
3. 3,536 views
How strong an electric field is needed to accelerate electrons in a TV tube from rest to one-tenth the speed of light in a
1. 2 answers
2. asked by Debra
3. 3,535 views
A 3.00-liter aluminum cylinder at 5.00°C is filled to the brim with gasoline at the same temperature. If the aluminum and
1. 1 answer
2. asked by Justin
3. 2,958 views
WRITE A SIMPLE BUT A COMPLETE FORTRAN PROGRAM TO COMPUTE THE AVERAGE OF SIX NUMBERS AND DISPLAY THE NUMBERS, SUM AND AVVERAGE.
1. 2 answers
2. asked by EDWIN
3. 2,724 views
A certain spaceship has a speed of 18200 mi/hr. What is its speed in light-years/century? A light-year is the distance that
1. 1 answer
2. asked by lisa
3. 2,516 views
What are the distance and displacement of a race car that completes the Indy 500
1. 1 answer
2. asked by rosie
3. 2,442 views
A triangle is placed in a semicircle with a radius of 3cm, as shown below.Find the area of the shaded region. Use the value for
1. 3 answers
2. asked by tony
3. 2,301 views
WRITE A SIMPLE BUT A COMPLETE FORTRAN PROGRAM TO CALCULATE THE AREA OF A TRIANGLE
1. 3 answers
2. asked by EDWIN
3. 2,133 views
A typical lightning flash delivers about 27C of negative charge from cloud to ground. How many electrons are involved?
1. 1 answer
2. asked by D'Andre
3. 1,915 views
Find the slope and an equation of the tangent line to the graph of the function f at the specified point.f(x)=-1/3x^2+5x+5: (-1,
1. 2 answers
2. asked by Steff
3. 1,880 views
in a class 1/3 of students play cricket 1/8 play volleyball, 1/6 play tennis and the rest don't play any games. what fraction of
1. 2 answers
2. asked by mukesh
3. 1,873 views
4.The patient is a 42-year-old male with a history of left shoulder osteomyelitis with resistant pseudomonas from an injury he
1. 3 answers
2. asked by nicole
3. 1,700 views
IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one individual is randomly chosen. Let X =
1. 1 answer
2. asked by Kelly
3. 1,631 views
. An assessment technique that is graphic in nature and that uses examples of behavior representing particular levels of
1. 2 answers
2. asked by POORMAN
3. 1,469 views
List the types of potential segmenting dimensions, and explain which you would try to apply first, second, and third in a
1. 1 answer
2. asked by Destiny
3. 1,435 views
Which of the following statements is true based on the propositions of the kinetic molecular theory?
1. 2 answers
2. asked by Manda
3. 1,401 views
3.She is tender to percussion and palpation over the right lower quadrant.over is the preposition, is to also a preposition in
1. 1 answer
2. asked by melody
3. 1,387 views
One of the four underlined sections may mark an error in punctuation. Choose the option that marks the error in punctuation. If
1. 5 answers
2. asked by natasha
3. 1,367 views
A particular microwave oven delivers 800 watts. (A watt is a unit of power, which is the joules of energy delivered, or used,
1. 2 answers
2. asked by Lance
3. 1,356 views
A rectangular garden is to be fenced off and divided into 3 equal regions by fencing parallel to one side of the garden. 200
1. 1 answer
2. asked by Usman
3. 1,314 views
Carbon is a an element with an atomic number of 6. Based on this information, which of the following statements is true?A.
1. 1 answer
2. asked by Sherri
3. 1,293 views
I need help with the layout on how to prepare a bank reconciliation and record adjustments. As of July 31 Company is Clark
1. 0 answers
2. asked by shawna
3. 1,284 views
A 2000kg car begins from rest and rolls 50.0m down a frictionless 10 degrees incline. If there is a horizontal spring at the end
1. 2 answers
2. asked by Joshua
3. 1,280 views
The average air pressure at sea-level will support the column of mercury in a mercury barometer to a height of 760 mm (29.92
1. 0 answers
2. asked by Anonymous
3. 1,276 views
Debbie, an administrative assistant, likes to stay at her desk until seven or so each workday evening, writing letters on her PC
1. 3 answers
2. asked by POORMAN
3. 1,264 views
If xy log(x+y) = 1, prove that dy/dx = -y(x^2y +x+ y)/x(xy^2 + x + y)
1. 1 answer
2. asked by Akash
3. 1,252 views
hay i really really need help!!!im doing a poem project and it invloves explainig what does "no time to turn at beautys glance
1. 2 answers
2. asked by priya
3. 1,252 views
Outdoors, the air temperature is 5 °C (44 °F) and the relative humidity is 45%. What is the relative humidity of the air if it
1. 2 answers
2. asked by Anonymous
3. 1,245 views
Following question I need help with part b) Please verify my answer for part a) too if possible.Consider the following reaction
1. 2 answers
2. asked by Dexter
3. 1,225 views
2. A teacher wants to investigate whether there is a difference between male and female students in the amount of time they
1. 1 answer
2. asked by Carl
3. 1,209 views
FIND THE MEASURES OF ANGLE 1 AND ANGLE 2 IF MEASURE ANGLE 1=3X-12 MEASURE ANGLE 2=7X+2 AND ANGLE 1 AND ANGLE 2 FORM A LINEAR
1. 1 answer
2. asked by jojo garma
3. 1,204 views
18) The demand equation is x + 1/6p - 10+0.Compute the elasticity of demand and determine whether the demand is elastic,
1. 2 answers
2. asked by Ben
3. 1,197 views
Determine the Molarity of a 125 mL NaOH solution if upon titration with 5.5 mL of an 2.5 M HCl solution, the end point of the
1. 1 answer
2. asked by liz
3. 1,176 views
If the store purchases an item at a wholesale cost of $3.50 per item, and it is sold at a retail value of $5.00 per item. What
1. 1 answer
2. asked by jimmy
3. 1,163 views
My instructor assign me of one the "senses." This the one my instructor had assign to me= “The Skin Senses”: Which includes
1. 0 answers
2. asked by Sharon
3. 1,155 views
What is the definitions of health promotion, disease prevention and health maintenance.
1. 1 answer
2. asked by Linda
3. 1,123 views
A block of wood is placed in a cup of water. The block has the following dimensions: L=10cm W=5cm H=4cm. If the block is 75%
1. 1 answer
2. asked by Noelle
3. 1,097 views
Two circles with radii 3cm and r cm touch each other externally. If their common tangent is 8cm long,what is the value of r?
1. 1 answer
2. asked by Daniel
3. 1,077 views
The colorful paper decorations were ruined by the sudden storm? what are all the adjectives
1. 3 answers
2. asked by Paula
3. 1,076 views
Suppose that it takes exactly 15.0 hours to drain a container of 6.10 liters of water. What is the flow rate in liters/second?
1. 1 answer
2. asked by lisa
3. 1,072 views
Feedback is most effective in improving performance when itA) is specific. B) is accepted by the employee. C) defines clear
1. 2 answers
2. asked by POORMAN
3. 1,071 views
A large firm has two divisions: an upstream division that is a monopoly supplier of an input whose only market is the downstream
1. 0 answers
2. asked by Kathy
3. 1,065 views
On a clear and calm day, the air temperature at sunrise is 0 °C (32 °F) with a relative humidity of 85%. The air temperature
1. 1 answer
2. asked by Anonymous
3. 1,053 views
Assume that it takes four hours of labor time to paint a room and three hours to sand a floor. If all 24 hours were spent
1. 0 answers
2. asked by MATTHEW
3. 1,032 views
When a high-speed passenger train traveling at 124 km/h rounds a bend, the engineer is shocked to see that a locomotive has
1. 4 answers
2. asked by Chelsea
3. 1,021 views
please, please, please help me with my question!1. el nino affects the andean region by A.causing seasonal rains to come at the
1. 3 answers
2. asked by danna
3. 1,006 views
Give the following reaction,find the mass of oxygen required to produce 13grams of CO2; C3H8+5O2--->3CO2 + 4H2O
1. 1 answer
2. asked by Charlie
3. 986 views
Jay Corp. bought a machine for $15,000. The machine is expected to produce 10,000units. The machine has a residual value of
1. 0 answers
2. asked by Anonymous
3. 963 views
2.He suffered an injury to his knee, and this is causing him pain and discomfort.suffered an injury ,is causing are verbs ,am i
1. 1 answer
2. asked by nicole
3. 934 views
How might the label of deviance act as a self-fulfilling prophecy?I don't understand this question...what do they mean by
1. 3 answers
2. asked by Diana
3. 934 views
A proton is at the origin and an electron is at the point x = 0.36nm , y= 0.30nm .
1. 1 answer
2. asked by DavidJ
3. 931 views
Please help.f(t)=(4+√t)(4t^2-5) This is what I have so far... (4+√t)(8t)+(4t^2-5) (1/2t^-1/2) Am struggling to get this in
1. 6 answers
2. asked by Steff
3. 930 views
In a classroom experiment, students were asked to place one paper clip in each hand. They were then instructed to add paper
1. 3 answers
2. asked by MaS
3. 922 views
The equation of the line for a graph of voltage versus log[Cu2+] was y= - 0.0179x - 0.0015. The voltage of a solution with an
1. 1 answer
2. asked by Max
3. 844 views
The electric field at the surface of a uniformly charged sphere of radius 6.0cm is 90 kN/c .
1. 1 answer
2. asked by Debra
3. 844 views
Incentive Corporation was organized in 2009 to operate a financial consulting business. The charter authorized the following
1. 2 answers
2. asked by gdlola
3. 837 views
3. A researcher is interested in whether listening to music helps or hinders test-performance. To control for differences in
1. 1 answer
2. asked by Carl
3. 821 views
The weight of a product is normally distributed with a standard deviation of .8 ounces. What should the average weight be if the
1. 1 answer
2. asked by jenny
3. 819 views
A sample of glucose, C6H12O6, contains 1.300x10exponent21 atoms of carbon. How many atoms of Hydrogen does it contain? How many
1. 1 answer
2. asked by Ray
3. 809 views
One side of a triangle is 6 meters more than twice the shortest side. The perimeter is 75 meters. Find all three sides.
1. 1 answer
2. asked by rebecca
3. 806 views
Saturated (cloudy) air at a temperature of 20 °C (68 °F) has a vapor pressure of __________ mb and a relative humidity of
1. 0 answers
2. asked by Anonymous
3. 782 views
Attempting to provide raters with a set of consistent norms of good and poor performance for evaluating employees is an example
1. 1 answer
2. asked by POORMAN
3. 782 views
5.The external oblique fascia was then incised, and the incision was lengthened in the direction of the fibers.pls let me know
1. 1 answer
2. asked by mike
3. 770 views
2. A teacher wants to investigate whether there is a difference between male and female students in the amount of time they
1. 1 answer
2. asked by Carl
3. 767 views
A man leaves his front door, walks 440 m east and 380 m north, stopping at the edge of a cliff. He then takes a penny from his
1. 1 answer
2. asked by amanda
3. 759 views
What is casual observation and why is it different from scientific disipline?
1. 1 answer
2. asked by logan
3. 740 views
A cessna plane flies with a speed of 150km/h relative to the air and points due east. A wind is blowing at a speed of 20km/h at
1. 1 answer
2. asked by Matt
3. 727 views
Differentiate.sqrt((6x^2 + 5x + 1)^3)
1. 1 answer
2. asked by Mike
3. 713 views
A Superblade was used at the 2 o'clock position, and the anterior chamber was enteredwas used is a verb ,was entered is also a
1. 1 answer
2. asked by kristin
3. 711 views
(please help) I need help with my English assignment ASAP. I need to know the meaning of Impetus?These are the exact words.
1. 1 answer
2. asked by Victorine
3. 709 views
Find side c if side a = 10 inches and side b = 6 inches.
1. 1 answer
2. asked by robert
3. 702 views
If the relative humidity is 66% and the vapor pressure is 16 mb, what is the vapor pressure at saturation? Answer: _________ mb
1. 0 answers
2. asked by Anonymous
3. 701 views
A golfer takes three putts to get her ball into the hole once she is on the green. Her first putt displaces the ball 71.0 ft
1. 1 answer
2. asked by kelly
3. 698 views
18) The demand equation is x + 1/6p - 10+0.Compute the elasticity of demand and determine whether the demand is elastic,
1. 0 answers
2. asked by Steff
3. 695 views
A car moves with an initial velocity of 25ms-1 and reaches a velocity of 45-1 in 10s. What is the acceleration of the car?
1. 4 answers
2. asked by Joseph
3. 691 views
I just need my answers checked.1) Find the derivative. f(x)=3x^5/4 - 8/9x^9/8 + x^2 - 9x + 1 Answer: f’(x)= 15/4x^1/4 - x ^1/8
1. 4 answers
2. asked by Steff
3. 689 views
If the relative humidity is 66% and the vapor pressure is 16 mb, what is the approximate air temperature? Answer: _________ °C.
1. 0 answers
2. asked by Anonymous
3. 683 views
Assuming that the air temperature drops 6.5 Celsius degrees per 1000 m, compute the temperature at the tropopause if the
1. 1 answer
2. asked by Anonymous
3. 676 views
I blanked how to solve this:How many grams of carbon dioxide are produced when 2.5 grams of sodium bicarbonate reacts with
1. 1 answer
2. asked by Jillian
3. 671 views
convert 39C fever to fahrenheit
1. 1 answer
2. asked by mema
3. 670 views
I am doing a biography on Amelia Douglas. But I am having a hard time starting it out. I had it as ...Amelia Douglas was born...
1. 7 answers
2. asked by Emma
3. 669 views
FORTRAN ROGRAM THAT CAN ACCEPT TWO INTEGER NUMBERS AND COMPUTE AND DISPLAY ALL THEIR COMMON PRIME FACTORS
1. 2 answers
2. asked by EDWIN
3. 666 views
1. An LU professor is interested in whether there is a difference between undergraduate students and graduate students in the
1. 0 answers
2. asked by Carl
3. 657 views
A car is driven east for a distance of 88 km, then north for 28 km, then in a direction 30 degrees east of north for 25 km.
1. 1 answer
2. asked by lisa
3. 653 views
A salesperson goes door-to-door in a residential area to demonstrate the use of a new Household appliance to potential
1. 0 answers
2. asked by jenny
3. 653 views
Which one of the following lines best illustrates personification?A. The fog comes on little cat feet B. She floated graceful as
1. 2 answers
2. asked by Emily
3. 645 views
Could you give me some links to other pictures I could add to the title page, so far I only have a picture of Amelia Douglas in
1. 5 answers
2. asked by Emma
3. 641 views
How would you prepare 1 L of a 1.15 M aqueous solution of MgCl2? What grams of MgCl2 would be used?
1. 1 answer
2. asked by Anonymous
3. 640 views
Translate the following into an inequality. Do not solve. Profits in the second quarter for a local retailer were all 112% of
1. 1 answer
2. asked by cody
3. 624 views
Okay I am creating A Title page for Amelia Douglas, and since she's a Metis, I wanted to paste a Metis flag somewhere on the
1. 2 answers
2. asked by Emma
3. 605 views
a long fishing rod is kept upright .A boat engine causes the rod to vibrate.Mary speculates that the end of the rod moves to and
1. 1 answer
2. asked by Sivashen
3. 605 views
i am having a hard time figuring out the adverbs and adjectives in my paragraph, can anyone help me with this? A few years ago,
1. 1 answer
2. asked by jake
3. 604 views
how to create a map and diorama 3-d model in a large pizza box ?steps to follow- show and label the landforms on both the map
1. 1 answer
2. asked by bhanu
3. 603 views

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