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2012
March

Questions Asked on March 5, 2012

On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a golf club improvised from a tool. The
1. 4 answers
2. asked by Haley
3. 19,447 views
In the graph below, point D is reflected across the y-axis. What are the coordinates of it's image?The graph looks like D is
1. 21 answers
2. asked by Brandon
3. 11,117 views
Which of the following has the highest buffer capacity?A. 0.10M H2PO4-/0.10M HPO4 2- B. 0.50M H2PO4-/0.10M HPO4 2- C. 0.10M
1. 2 answers
2. asked by Debbie
3. 4,969 views
consider the following reaction:2CH3OH(g) yields 2CH4(g) + O2(g) change in enthalpy= 252.8kJ Calculate the amount of heat
1. 6 answers
2. asked by Dylan
3. 3,997 views
A popular buffer solution consist of carbonate (CO3 2-) and hydrogen carbonate (HCO3-) conjugate acid-base pair. Which, if any
1. 1 answer
2. asked by Debbie
3. 3,817 views
5. Scores on a recent national statistics exam were normally distributed with a mean of 80 and a standard deviation of 6.a. What
1. 2 answers
2. asked by Zac
3. 3,785 views
What is the image of A(3,-1) after a reflection, first across the line y=3, and then across the line x=-1?I believe (3,-1) but
1. 3 answers
2. asked by Brandon
3. 3,710 views
a 30 feet ladder resting against a building makes a 60 angle with the ground . find the Height from the ground at which the
1. 2 answers
2. asked by :)
3. 3,459 views
If the charge to mass ratio of a proton is 9.58 x 10^7 coulomb/kilogram and the charge is 1.60 x10^-19 coulomb, what is the mass
1. 3 answers
2. asked by Hannah
3. 3,377 views
A park has the shape of a trapezoid. Two of the sides are 25 meters long. The other two sides are 40 meters and 20 meters long.
1. 12 answers
2. asked by jack
3. 3,203 views
a mixture of 0.156 moles of C is reacted with 0.117 moles of O2 in a sealed, 10.0L vessel at 500K, producing a mixture of CO amd
1. 1 answer
2. asked by shery
3. 3,193 views
A meter stick is held vertically above your hand, with the lower end between your thumb and first finger. On seeing the meter
1. 1 answer
2. asked by aisha
3. 3,142 views
an experimental rocket plane lands on skids on a dry lake bed. it is traveling at 80.0 m/s when it touches down, how far does it
1. 2 answers
2. asked by sarah
3. 3,130 views
A race car accelerates from 0.0 m/s to 30.0 m/s with a displacement of 45.0 m.what is the car's acceleration ?
1. 5 answers
2. asked by blue
3. 3,043 views
Calculate the amount of heat transferred when 21.0 of CH3OH(g) is decomposed by this reaction at constant pressure.
1. 5 answers
2. asked by Brittany
3. 2,998 views
Two charged particles of equal magnitude (+Q and −Q) are fixed at opposite corners of a square that lies in a plane (see
1. 1 answer
2. asked by Monica
3. 2,945 views
A ball starts from rest and rolls down a hill with uniform acceleration, traveling 170 m during the second 5.5 s of its motion.H
1. 2 answers
2. asked by aisha
3. 2,802 views
Richard Bone by Edgar Lee Masters:When I first came to Spoon River I did not know whether what they told me Was true or false.
1. 6 answers
2. asked by JIM
3. 2,732 views
The half-life of carbon 14 is 5730 years. if a 1 g sample of old carbon is 1/8 as radioactive as 1 g of a current sample, then
1. 3 answers
2. asked by chuck
3. 2,723 views
A 30.0-kg block is resting on a flat horizontal table. On top of this block is resting a 15.0-kg block, to which a horizontal
1. 1 answer
2. asked by MLC
3. 2,576 views
subject and object pronounswrite each sentence. replace the underlined words with subject or object pronouns. 1-When some people
1. 4 answers
2. asked by dw
3. 2,535 views
Mars Rover When the Mars rover was deployed on the surface of Mars in July 1997, radio signals took about 12 min to travel from
1. 3 answers
2. asked by jazz
3. 2,495 views
a motorized scooter starts from rest and accelerates for 4 s at 2 m/s2. it continues at a constant speed for 6 s . What is the
1. 2 answers
2. asked by blue
3. 2,475 views
Guy wires 80 feet long support a 65 foot tall telephone pole. To the nearest degree, what angle will the wires make with the
1. 3 answers
2. asked by Jackie
3. 2,471 views
Some bacteria are propelled by motors that spin hair-like flagella. A typical bacterial motor turning at a constant angular
1. 4 answers
2. asked by Angela
3. 2,310 views
You are playing right field for the baseball team. Your team is up by one run in the bottom of the last inning of the game when
1. 1 answer
2. asked by Haley
3. 2,176 views
A farmer plans to enclose a rectangular pasture adjacent to a river. (see figure). The pasture must contain 320,000 square
1. 1 answer
2. asked by Malika
3. 2,066 views
A batter hits a pop-up straight up over home plate at an initial velocity of 29 m/s. The ball is caught by the catcher at the
1. 1 answer
2. asked by Haley
3. 1,940 views
an airplane over the pacific sights an atoll at a 11 degrees angel angle of depression. if the plane is 410 m above water how
1. 1 answer
2. asked by :)
3. 1,929 views
Label 2 bays that Hudson saw. I know the answer is Delaware Bay and Chesapeake Bay but I don't know where 2 label them.there's a
1. 1 answer
2. asked by Gabby ( 5 grade)
3. 1,889 views
At 25 C the following heats of reaction are known:2CIf (g)+ O2(g) -> CL2O (g) + f2O Delta H rxn= 167.4 kj/mol 2CIf3(g) + 2O2
1. 1 answer
2. asked by Court
3. 1,751 views
Prepare a theoretical titration curve for titration of 25.0 mL of 0.1037 formic acid (HCOOH; pKa = 3.75) solution (diluted to
1. 1 answer
2. asked by Clint
3. 1,689 views
Liola drives 13 km up a hill that is at a grade of 10 Degrees what horizontal distance to the nearest tenth of kilometer has she
1. 1 answer
2. asked by :)
3. 1,687 views
A jet of water squirts out horizontally from a hole near the bottom of the tank, as seen in the figure below.Assume that y =
1. 0 answers
2. asked by Jackie
3. 1,667 views
Sketch the graph of f by hand and use your sketch to find the absolute and local maximum and minimum values of f.18. f(x) = 1/x
1. 1 answer
2. asked by Emily
3. 1,663 views
Two blocks, each with a mass = 0.168 kg, can slide without friction on a horizontal surface. Initially, block 1 is in motion
1. 3 answers
2. asked by Lilly
3. 1,661 views
Individuals whose characteristics are well-suited to their environment survive. Individuals whose characteristics ar not
1. 3 answers
2. asked by Shreya
3. 1,661 views
An egg is thrown nearly vertically upward from a point near the cornice of a tall building. It just misses the cornice on the
1. 2 answers
2. asked by aisha
3. 1,647 views
Find the angle of elevation of the sun when a tree that is 10 yd tall cast a shadow 14 yds long
1. 2 answers
2. asked by :)
3. 1,607 views
A flower bed in the corner of your yard is in shape of a right triangle. The perpendicular sides of the bed measure 6 feet 8
1. 4 answers
2. asked by kim
3. 1,606 views
For the titration of 50.00 mL of 0.106 M NH3 with 0.225 M HCl, calculate(A) the initial pH and when the pH neutralization is (B)
1. 1 answer
2. asked by Rosi
3. 1,581 views
Find the intervals on which the f(x)= cos^2x is concave up and concave down.
1. 1 answer
2. asked by amir
3. 1,537 views
The coordinates of the vertices of triangle CDE are C(1,4), D(3,6), and E(7,4). If the triangle is reflected over the line y=3,
1. 3 answers
2. asked by Brandon
3. 1,499 views
what is the critical value t that satisfies the condition that the t distribution with 8 degrees of freedom has probability .10
1. 2 answers
2. asked by Anonymous
3. 1,491 views
When you roll a ball off the edge of a table, the component of velocity that doesn't change as it falls is the
1. 1 answer
2. asked by jim
3. 1,463 views
A pole-vaulter of mass 60.2 kg vaults to a height of 6.1 m before dropping to thick padding placed below to cushion her fall.(a)
1. 2 answers
2. asked by Ray
3. 1,438 views
The kinds of interactions that exist between CH3COOH moleculesinclude dipole-dipole (including hydrogen bonding) interactions
1. 1 answer
2. asked by krystal
3. 1,428 views
A woman sues a man for the support of her child. She has type A blood, her child type O, the man type B. could the man be the
1. 2 answers
2. asked by Rebecca
3. 1,422 views
A./_\B.\_/ C.|_| The three tanks shown above are filled with water to an equal depth. All the tanks have an equal height. Tank A
1. 2 answers
2. asked by Sasha
3. 1,413 views
A ball thrown horizontally at 27 m/s travels a horizontal distance of 51 m before hitting the ground. From what height was the
1. 1 answer
2. asked by Haley
3. 1,405 views
A diver with a mass of 70.0 kg stands motionless at the top of a 3.0 m high diving platform. Calculate his speed when he enters
1. 3 answers
2. asked by Ryley
3. 1,393 views
The graph of f is shown. Apply Rolle's Theorem and find all values of c such that f '(c) = 0 at some point between the labeled
1. 2 answers
2. asked by Reza
3. 1,356 views
True or false? Constitutional isomers and conformations have the same molecular formula.
1. 2 answers
2. asked by krystal
3. 1,329 views
determine the final temperature of a system after 100.0g of zinc ( specific heat .3876 J/g c) at 95.0 C is immersed into 50.0 g
1. 1 answer
2. asked by Cece
3. 1,299 views
Suppose the space needle in seattle washington casts a 220 ft shadow at the same time a nearby tourist cast a 2- foot shadow if
1. 1 answer
2. asked by help
3. 1,282 views
Out of the 248 seniors, 112 are boys. What is the ratio of boys to the total number of seniors?
1. 2 answers
2. asked by kaylah
3. 1,260 views
Emory is mounting 3 shelves of 12 3/4 in apart on a wall. If each board is 3/4 in. thick, what is the total vertical space
1. 4 answers
2. asked by lori
3. 1,246 views
Please explain how this is set up and how to work it. thanksA rectangular box is 4cm wide, 4cm tall, and 10cm long. What is the
1. 5 answers
2. asked by Jane
3. 1,238 views
Please show me how to work this.A park has two walking paths shaped like right triangles. The first path has legs 75 yd and 100
1. 2 answers
2. asked by Jane
3. 1,231 views
A plane flying horizontally at an altitude of 1 mi and a speed of 500 mi/h passes directly over a radar station. Find the rate
1. 2 answers
2. asked by Daniel
3. 1,228 views
I have two questions that I really don't understand.The first one is: A reaction proceeds with delta H=-10kJ/mol. The energy of
1. 4 answers
2. asked by kathryn
3. 1,210 views
We learned different timeframes in We learned timeframes in Spanish today and I'm stuck with my homework.Please check1.Yo pedí
1. 6 answers
2. asked by Toby
3. 1,201 views
A rectangle has width w and its length is 4 units longer than 2 times the width, or 2w + 4 . Write a polynomial for the area of
1. 1 answer
2. asked by John
3. 1,185 views
What is broken up into about 30 sections that move around on the asthenosphere?I'm stuck between plates, crust, and lithosphere.
1. 1 answer
2. asked by Victoria
3. 1,184 views
The diameter of Earth is 12,742 kilometers; the diameter of the moon is 3476 kilometers.a. If you flew around Earth by following
1. 1 answer
2. asked by kim
3. 1,183 views
A unique feature of which browser is an opening screen that features a different image each day with embedded links?A. Chrome
1. 1 answer
2. asked by Brenna
3. 1,179 views
A Health Care Administrator has been hired by an, Ambulatory health care setting. What should the health care administrator
1. 0 answers
2. asked by Tasha
3. 1,179 views
Trace in blue the river Hudson sailed up.I know it's the Hudson river but,i don't know where 2 label it i need
1. 2 answers
2. asked by Gabby ( 5 grade)
3. 1,163 views
I wanted to calculate the average equivalent weight of an unknown acid for an acid-base titration experiment. The mass of the
1. 5 answers
2. asked by Priscilla
3. 1,153 views
Take the radius of the earth at the equator to be 6380 kma. Find the speed the speed of an object at the equator due to the
1. 0 answers
2. asked by Kelly
3. 1,153 views
the design below grows each day, as shown. if the pattern continues to grow like this, how many tiles will there be in the
1. 5 answers
2. asked by Erica
3. 1,145 views
Marc is visiting washington dc he wants to know the height of the washington monument the length of the monument shadow is 111
1. 1 answer
2. asked by :)
3. 1,126 views
It is possible, although less accurate, to do a standard addition with only one sample. An unknown Fe sample was analyzed by AAS
1. 2 answers
2. asked by Mae
3. 1,104 views
calculate the delta Hf of c6h12o6 (s) from the following data:Delta H combustion= -2816 kj/mol delta Hf of Co2 = -393.5 kj/mol
1. 1 answer
2. asked by Cece
3. 1,102 views
Which statement does not accurately describe Committees on the Whole?1.)It helps the House get around quorum requirements. 2.)It
1. 2 answers
2. asked by Mackenzie
3. 1,099 views
A pebble is tossed from the top of a cliff. The pebble's height in feet is given by y(t) = -16t2 + 6t + 200, where t is the time
1. 1 answer
2. asked by Emily
3. 1,087 views
Arrange the following in correct order in food chain-Fish,Plankton,Shark,Crab
1. 1 answer
2. asked by Sweeny
3. 1,081 views
Zn metal was allowed to react with hydrochloric acid to produce hyrdogen gas.This gave a total of 555mL of gas collected over
1. 1 answer
2. asked by Cynthia
3. 1,056 views
Could someone help me with these questions.If an equation s(t)=t^3 - 2t^2 + 1 describes an object's motion in metres, at what
1. 1 answer
2. asked by Jessica
3. 1,051 views
Many moles of each reactant are Needed to produce 3.60 x 10^2g CH3OH?
1. 1 answer
2. asked by Andrea
3. 1,045 views
as many alterations as possible should be madeA)after sewing a garment B)on the pattern pieces C)immediately after cutting
1. 1 answer
2. asked by Ayesha
3. 1,044 views
N2(g) + H2(g) -> NH3(g) ; how many moles of NH3 is is produced when 0.67 moles of N2 reacts with H2?
1. 1 answer
2. asked by Suzanne
3. 1,043 views
DATA:The 2011 employee performance bonus will be $10 mil. The bonus is paid in March of 2012 is $9 mil The 2012 employee
1. 0 answers
2. asked by davve
3. 1,041 views
Question 18If a child was allergic to a substance scratched onto their skin, the area turned red and swollen within about 10
1. 0 answers
2. asked by alex
3. 1,039 views
what is the probability of observing three or fewer 6s when rolling a fair die twenty times?
1. 0 answers
2. asked by Chelsea
3. 1,038 views
The force exerted by the wind on a sailboat is approximately perpendicular to the sail and proportional to the component of the
1. 0 answers
2. asked by Anonymous
3. 1,024 views
Writeacher, I included a few sentences for you to check. I wonder if you coud help me organize my ideas more clearly.1) Winston
1. 1 answer
2. asked by Henry
3. 1,018 views
the correlation between two tests given to 100 students in the junior clas is .70 the mean for the first test was 125 with
1. 0 answers
2. asked by Anonymous
3. 1,014 views
Arrange the species O2, O2^+, O2^-, and O2^2- in order of increasing O-O bond length.
1. 1 answer
2. asked by Lucas
3. 1,012 views
Atop a cliff, a projectile is fired horizontally with an initial speed of 10 m/s. Neglecting air drag, what is its speed 1
1. 1 answer
2. asked by jim
3. 1,012 views
A well-established coffee shop, the Hot New Café, wants to build a new café for increased capacity. It’s expected sales are
1. 0 answers
2. asked by Stacy
3. 1,010 views
find the general solutions to the equations:1) sec x = -2 2) 2 sin^2 x = 1 3) cos^2 x - 2cos x + 1 = 0
1. 1 answer
2. asked by jenny
3. 1,009 views
A 73.3 kg man steps out a window and falls (from rest) 1.09 m to a sidewalk. What is his speed just before his feet strike the
1. 1 answer
2. asked by Brett
3. 1,006 views
King Arthur's knights fire a cannon from the top of the castle wall. The cannonball is fired at a speed of 42 m/s and at an
1. 1 answer
2. asked by Haley
3. 1,000 views
The monthly car payments for Ted Nelson's last eight customers were $266, $285, $285, $285, $285, $315, $325, and $344. Decide
1. 0 answers
2. asked by Catherine
3. 998 views
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state
1. 1 answer
2. asked by Anonymous
3. 996 views
I completed a lab to find the determination of Kc. I have to find the concentrations of reactants at equilibrium using an ICE
1. 6 answers
2. asked by Hannah
3. 986 views
How many liters of hydrogen gas can be made from 65.5g of magnesium at STP?Magnesium reacts to sulfric acid according to this
1. 1 answer
2. asked by Cynthia
3. 983 views
It takes 6hours to paint a bedrooma) How long would it take 2 men? B)how long would it take 4men? C)how long with it take 12men?
1. 1 answer
2. asked by Timi
3. 978 views
Suppose 50.0 mL of an aqueous solution containing an unknown monoprotic weakacid is titrated with 0.250 M KOH. The titration
1. 1 answer
2. asked by Chill
3. 963 views

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