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2012
March

Questions Asked on March 4, 2012

Rank the average gravitational forces from greatest to least between:A. Sun and Mars.B. Sun and the Moon.C. Sun and Earth.i
1. 8 answers
2. asked by Christie
3. 6,271 views
Emily holds a banana of mass m over the edge of a bridge of height h. She drops the banana and it falls to the river below. Use
1. 5 answers
2. asked by Mrs G
3. 4,775 views
Two crates , one with mass 4.00 kg and the other with 6.00 kg, sit on the frictionless surface of a frozen pond, connected by a
1. 3 answers
2. asked by evelyn
3. 4,404 views
If a trapeze artist rotates once each second while sailing through the air and contracts to reduce her rotational inertia to
1. 2 answers
2. asked by Christie
3. 4,036 views
A plane is flying at an altitude of 12,000 feet and is preparing to land at a nearby airport. The angle from the airport to the
1. 2 answers
2. asked by Valentino
3. 3,377 views
At a certain time, a verical pole 10 feet tall casts a 14-foot shadow. What is the angle of elevation of the sun to the nearest
1. 1 answer
2. asked by Valentino
3. 3,253 views
Jack Kerouac gave the Beat Generation their name because he claimed that his generation of writers was beaten down by (pick one)
1. 10 answers
2. asked by LAYLA
3. 2,989 views
The concentration C(t), in milligrams per cubic centimetre, of a certain medicine in a patient's bloodstream is given by C(t)=
1. 1 answer
2. asked by Jake
3. 2,976 views
The equilibrium constant, Kc for the system,CaO(s) + CO2(g) == CaCO3(s), is A. Kc = (CaO) (CO2) / (CaCO3) B. Kc = (CO2) C. Kc =
1. 2 answers
2. asked by Hannah
3. 2,554 views
In raising a 4000-N piano with a pulley system, the workers note that for every 1.6 m of rope pulled downward, the piano rises
1. 2 answers
2. asked by Mrs G
3. 2,323 views
Consider the curves y = x^2and y = mx, where m is some positive constant. No matter what positive constant m is, the two curves
1. 1 answer
2. asked by John
3. 2,305 views
calculate the standard enthalpy change for each of the following reactions. N2O4(g)+4H2(g)=N2(g)+4H2O(g)
1. 1 answer
2. asked by karen
3. 2,297 views
The reaction, 2 SO3(g) == 2 SO2(g) + O2(g) is endothermic.Predict what will happen if the temperature is increased. A. the
1. 1 answer
2. asked by Hannah
3. 2,099 views
which of the following represent a buffer system?A.) NaOH and NaBr B.) HF and NaF C.) HC2H3O2 and C12H22O11 D.) HCl and KOH
1. 1 answer
2. asked by dylan
3. 2,053 views
Two horse pull horizontally on ropes attached to a stump. The two forces f1 and f2 that they apply to the stump are such that
1. 4 answers
2. asked by evelyn
3. 1,932 views
At a given instant in time, a 10-kg rock is observed to be falling with an acceleration of 7.0 m/s2. What is the magnitude of
1. 1 answer
2. asked by Jermaine
3. 1,877 views
2NO(g) + Br2(g) -> 2NOBr(g)What is the rate equation? My answer is k[NO]2[Br2] Is this correct? Thank you!!!!
1. 3 answers
2. asked by Hannah
3. 1,753 views
A sample of gas at 47 C and 1.03 atm occupies a volume of 2.20 L. What volume would this gas occupy at 107 C and 0.789 atm?
1. 1 answer
2. asked by Anna
3. 1,735 views
A pendulum with 1kg weight is set in motion from a position .04 m above the lowest point on the path of the weight. What is the
1. 1 answer
2. asked by Ryley
3. 1,630 views
To tighten a bolt, you push with a force of 72 N at the end of a wrench handle that is 0.26 m from the axis of the bolt.What
1. 3 answers
2. asked by Christie
3. 1,624 views
Here are some statistics using GSS 2008 data:RACE OF RESPONDENT n 2023 Mean 1.32 Median 1.00 Mode 1.00 Standard deviation 0.631
1. 2 answers
2. asked by stewie
3. 1,552 views
How do i determine the mass of ice initially in the calorimeter when dry saturated steam is passed into 250g of a mixture of ice
1. 1 answer
2. asked by Emmanuel
3. 1,543 views
The fuel efficiency, E, in litres per 100 km, for a car driven at speed v, in km/h is E(v)=1600v/(v^2+6400).a) Determine the
1. 1 answer
2. asked by Jake
3. 1,272 views
A 5 kg magnet exerts a constant force of 3 N on a 0.25 kg magnet. What force will the smaller magnet exert on the larger magnet?
1. 1 answer
2. asked by Anonymous
3. 1,260 views
An object moves in a straight line. Its velocity, in m/s, at time t is v(t)=4t^2/(1+t^2),t≥0.Determine the maximum and minimum
1. 2 answers
2. asked by Jake
3. 1,230 views
Did you hear about the novice water polo player who..??
1. 2 answers
2. asked by Jar
3. 1,229 views
A sporting goods store sells 100 pool tables per year. It costs $20 to store one pool table for a year, based on the average
1. 0 answers
2. asked by Casey
3. 1,219 views
A major league pitcher can throw a baseball in excess of 41.3 m/s.If a ball is thrown horizontally at this speed, how much will
1. 0 answers
2. asked by Anonymous
3. 1,174 views
Arrange the species O2, O2^+, O2^-, and O2^2- in order of increasing O-O bond length.
1. 1 answer
2. asked by Jimmy
3. 1,168 views
I'm conducting a research paper about financial crisis of 2008 and would like some input. Which is better, regulating banks or
1. 1 answer
2. asked by yuri
3. 1,163 views
A 5 kg magnet exerts a constant force of 3 N on a 0.25 kg magnet. What force will the smaller magnet exert on the larger magnet?
1. 0 answers
2. asked by Anonymous
3. 1,138 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. 1 answer
2. asked by Hannah
3. 1,116 views
How many grams of ice at -11.2 degrees C can be completely converted to liquid at 29.8 degrees C if the available heat for this
1. 1 answer
2. asked by Lauren
3. 1,082 views
1. Determine the truth value of the following statement:Rome is a city in France or all numbers are divisible by 1. True False
1. 1 answer
2. asked by diena
3. 1,079 views
Jay and Tia are planning to buy snack chips.• Individual bags of chips cost $3.00 each. • Each case of chips contains 10
1. 5 answers
2. asked by Frances
3. 1,068 views
An athlete wants to finish a 5K face in 25 minutes. If she runs at a constant speed of 3.4 m/s, will she meet her goal?
1. 2 answers
2. asked by Emma
3. 1,067 views
A buffer is prepared by adding 300.0 mL of M NaOH to 400.0 ML of 2.0 M CH3COOH. What is the pH of this buffer? ks=1.8X10^-5
1. 1 answer
2. asked by Daniel
3. 1,063 views
Thank you, Writeacher.Here are some other sentences I need you to check. 1) Your paragraphs show a poor knowledge of grammar as
1. 1 answer
2. asked by Henry
3. 1,053 views
In 1 mole of CaCl2 there are ____ moles of chloride ions.A. 1 B. 2 C. 0.5 D. None of these
1. 3 answers
2. asked by Ashley
3. 1,052 views
my sister still be sick so i still helping her post questions.i write paragraph from her textbook that go with question.
1. 4 answers
2. asked by Mohammad
3. 1,051 views
If the radius of the Earth somehow bloated to twice its size, with no changes in mass, your weight at the Earth's new surface
1. 1 answer
2. asked by Christie
3. 1,039 views
what is the density of a sample of 65.0 ml of automobile oil having mass of 59.82 g
1. 2 answers
2. asked by yvette
3. 1,027 views
Which age groups benefit from physical activity?A. Children B. Middle aged adults C. Older adults D. All of the above d
1. 5 answers
2. asked by desha
3. 1,026 views
Tree stands 25 feet tall and 15 feet wide base 7.5 feet . You want to hang strings of lights from top to bottom on the outside.
1. 1 answer
2. asked by kim
3. 1,022 views
When sampling is done for the proportion of defective items in a large shipment, where the population proportion is 0.18 and the
1. 4 answers
2. asked by Jackie
3. 1,022 views
you've been hired as the inpatient coderin the hospital's health information management department.Explain how your job will
1. 0 answers
2. asked by anah
3. 1,019 views
a square has sides of 9 inches. A second square is going to be drawn with a scale factor of 3. What is the area of the second
1. 1 answer
2. asked by vanessa
3. 1,007 views
John drives to work each morning and the trip takes an average of µ = 38 minutes. The distribution of driving times is
1. 0 answers
2. asked by gina
3. 1,003 views
What is premature death?A. Dying at the average age of death for a specific population group B. Dying after the average age of
1. 1 answer
2. asked by desha
3. 1,000 views
ABCD is a quadrilateralwith vertices A(2;5),B(-3;10),C(-4;3) and D(1;-2).then show that BD and AC bicect each at right angles at
1. 1 answer
2. asked by ntwadibe
3. 983 views
For the reaction, 2 SO2(g) + O2(g) == 2 SO3(g), at 450.0 K (Kelvin) the equilibrium constant, Kc, has a value of 4.62. A system
1. 1 answer
2. asked by Hannah
3. 979 views
Write the net ionic equation for the precipitation reaction between ammonium sulfide and cadmium nitrate.
1. 2 answers
2. asked by Bria
3. 951 views
True or false? Constitutional isomers and conformations have the same molecular formula.
1. 0 answers
2. asked by krystal
3. 934 views
In XYZ, what is the cosine ratio of <X?
1. 0 answers
2. asked by Valentino
3. 932 views
1-The roots of x2 - 6x + m - 3=0 are x1 and x2.If 2x1 - 3x2= 2 is given, find m?2-Given the inequalities x-2 ______ < 0 and x2 -
1. 1 answer
2. asked by Denise
3. 922 views
If u = log(r), where r^2 = (x-a)^2 + (y-b)^2, and (x-1) and (y-b) are not zero simultaneously, show that d^2u/dx^2 + d^2u/dy^2 =
1. 1 answer
2. asked by Bryant
3. 918 views
Darby guesses the answers to six questions on the math portion of her college entrance exam. Each question is a true or false
1. 1 answer
2. asked by Student
3. 918 views
A hockey puck with mass 0.160 kg is at rest at the origin (X = 0)a player applies a force of 0.250 N to the puck, parallel to
1. 1 answer
2. asked by evelyn
3. 903 views
Consider the following electron configuration.(σ3s)2 (σ3s*)2 (σ3p)2 (π3p)4 (π3p*)4 Select four species that, in theory,
1. 0 answers
2. asked by Sarah
3. 898 views
Two rectangles are similar the ratio of the lengths of their corresponding sides is 1:2 find the ratio of the peremeters of the
1. 1 answer
2. asked by Anonymous
3. 873 views
use properties of logarithms to find the exact value of the expression. sqrtlog81 3
1. 0 answers
2. asked by Tammy
3. 865 views
Question:Which 2 answers are correct? Which is not and why? 1. Sorry, I can't. I'm seeing my grandmother. 2.Sorry, I can't. I'm
1. 2 answers
2. asked by Mark
3. 850 views
Did the United States win the war for the Allied Powers? Discuss the American contribution to the war effort and evaluate its
1. 2 answers
2. asked by Jason
3. 823 views
the shadow of a tree is 8 feet long. How long of a shadow does a 6 foot man cast?
1. 1 answer
2. asked by Dione
3. 816 views
When standing erect a person's weight is supported chiefly by the larger of the two leg bones. Assuming this bone to be a hollow
1. 1 answer
2. asked by Brittnieee.
3. 813 views
A 25.00 mL sample of H3PO4(aq) requires 31.05 mL of 0.2410 M KOH for titration to the second equivalence point.What is the
1. 1 answer
2. asked by Chris
3. 800 views
If you used the rule (1/2x,1/2y)to to transform the original figure,how would the angles and sidelengths compare.
1. 0 answers
2. asked by elbert
3. 800 views
A sporting goods store sells 100 pool tables per year. It costs $20 to store one pool table for a year, based on the average
1. 1 answer
2. asked by Casey
3. 783 views
write the conjugate acid for the following:A.) NO3- = B.) HPO4^2- = C.) Br- = D.) S2- =
1. 1 answer
2. asked by dylan
3. 782 views
The frequency of a radio transmitter is 90 megahertz. What is its wavelength?
1. 2 answers
2. asked by Linda
3. 769 views
Arrange the species O2, O2^+, O2^-, and O2^2- in order of increasing O-O bond length.
1. 0 answers
2. asked by Jimmy
3. 763 views
Suppose that the marginal revenue for a product is given by the following, where x is the number of units and revenue is in
1. 1 answer
2. asked by Preet
3. 756 views
if cot(x-10)=tan(4x) what does x equal?
1. 1 answer
2. asked by Ali
3. 753 views
An object moves in a straight line. Its velocity, in m/s, at time t is v(t)=4t^2/(1+t^2),t≥0.Determine the maximum and minimum
1. 2 answers
2. asked by Jake
3. 750 views
Choose the type of shape that best matches to CH4.Linear Trigonal planar Bent Tetrahedral Pyramidal
1. 1 answer
2. asked by krystal
3. 742 views
To tighten a bolt, you push with a force of 72 N at the end of a wrench handle that is 0.26 m from the axis of the bolt.What
1. 1 answer
2. asked by Christie
3. 735 views
Find the limit, if it exists, or show that the limit does not exist. lim of x+y/y^2-x^2 as (x,y) approaches the point (-1,1).
1. 1 answer
2. asked by Anonymous
3. 722 views
For the reaction system, 2 H2O(g) + O2(g) == 2 H2O2 (g), the equilibrium concentrations are(H2O2) = 0.120 M; (H2O) = 0.860 M;
1. 5 answers
2. asked by Hannah
3. 721 views
Determine the genotypes of the parents.One parent has AB blood and the other has type B, but the children, 25% are type A, 25%
1. 0 answers
2. asked by Rebecca
3. 716 views
Exercise can help prevent _________.A. Heart disease B. Colorectal cancer C. Type 2 diabetes D. All of the above d
1. 1 answer
2. asked by desha
3. 707 views
A physics student playing with an air hockey table (a frictionless surface) finds that if she gives the puck a velocity of 5.30
1. 0 answers
2. asked by Nick
3. 706 views
How many deciliters of carbon dioxde are produced when 0.38L SO2 is formed?
1. 1 answer
2. asked by Lety
3. 700 views
Words are :A . Convenient Communication shortcuts B .Not arbitrary symbols C .Unique to each individual in English D .Thoughts
1. 5 answers
2. asked by Ade
3. 693 views
Given that a sample is approximately bell-shaped with a mean of 60 and a standard deviation of 3, the approximate percentage of
1. 1 answer
2. asked by Ashley
3. 690 views
Hey. I was just wondering if anybody on here has been to teenink. I can't post the website but if you Google teen ink, it takes
1. 3 answers
2. asked by running.from.myself
3. 675 views
a flagpole cast a shadow that is 26ft long. At the same time, a yardstick cast a shadow that is 4ft long. How tall is the
1. 1 answer
2. asked by nick
3. 674 views
A rescue airplane is flying horizontally at a height of 3.0 km with a speed 272 m/s when it releases a package of emergency food
1. 0 answers
2. asked by Anonymous
3. 673 views
what time do restaurants open and close in Mexico? I'm making a menu for a restaurant in Mexico and I need to know what time it
1. 1 answer
2. asked by jocelyn
3. 663 views
Hot air balloons require large amounts of both hot air and fabric material. A hot air balloon is spherical with a diameter of 25
1. 1 answer
2. asked by kim
3. 663 views
Four friends together earned 128 mowing lawns. After paying an amount g for gasoline, they shared the money equally. Which
1. 1 answer
2. asked by Jim
3. 662 views
Assume that the Earth is spherical and recall that latitudes range from 0° at the Equator to 90° N at the North Pole. Consider
1. 2 answers
2. asked by rachel
3. 660 views
Which of these three produces a greater tidal effect on you right now—the moon, the Earth, or the sunA) The sun.B) The
1. 0 answers
2. asked by Christie
3. 658 views
Loan Mixture: A student takes out a total of $5000 in three loans: one subsidized, one unsubsidized, and one from the parents of
1. 1 answer
2. asked by HELP NEEDED
3. 649 views
a car traveling on a straight road accelerates uniformly at a meter per second square from its initial speed of 20 meter per
1. 0 answers
2. asked by maha
3. 649 views
A rescue airplane is flying horizontally at a height of 3.0 km with a speed 272 m/s when it releases a package of emergency food
1. 0 answers
2. asked by Anonymous
3. 648 views
Thank you for the explanation MathMate! Would the answer to this question be A?Darby guesses the answers to six questions on the
1. 2 answers
2. asked by Student
3. 646 views
write the conjugate base for the following:A.) HCN= B.) HPO4^2- = C.) NH4+ = D.) HC2H3O2=
1. 1 answer
2. asked by dylan
3. 638 views
Identify the following gas compression descriptions as adiabatic, isothermal or isobaric.a. As the gas compresses, the internal
1. 1 answer
2. asked by GRISSELL
3. 636 views
A Ferris Wheel with a radius of 15 meter makes one complete rotation every 10 seconds.
1. 0 answers
2. asked by Mina
3. 635 views
Assume that the Earth is spherical and recall that latitudes range from 0° at the Equator to 90° N at the North Pole. Consider
1. 2 answers
2. asked by rachel
3. 634 views

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