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Questions Asked on October 26, 2009

The Moon has a diameter of about 3480 km and an orbital radius of about 384 400 km from the centre of Earth. Suppose that the
1. 3 answers
2. asked by Anonymous
3. 6,349 views
Find an angle between 0 degree and 360 degree that is coterminal with given angle.a. 361 degree b. -100 degree c. 1270 degree
1. 2 answers
2. asked by David
3. 6,300 views
Ionization energy is defined as the minimum energy required to remove an electron from the ground state (n0) to infinity (n∞).
1. 3 answers
2. asked by Sarah
3. 4,379 views
A water slide is constructed so that swimmers, starting from rest at the top of the slide, leave the end of the slide traveling
1. 2 answers
2. asked by Vince
3. 3,643 views
I am so stuck on this problem:λ for one line of the hydrogen spectrum is .4118 x 10-4 cm. Use this value in the Rydberg
1. 2 answers
2. asked by Sarah
3. 3,612 views
Question 1:In the Balmer-Rydberg equation, what value of m is used to determine the wavelengths of the Balmer series? m=?
1. 2 answers
2. asked by Sophie
3. 3,544 views
A rain cloud contains 2.66 x 10^7 kg of water vapor. How long will it take for a 2.00 kW pump to raise the same amount of water
1. 2 answers
2. asked by arriell
3. 3,427 views
A flag pole is 40 feet high and stands on level ground. a flag is attached to a 120 foot rope passing through a pulley at the
1. 1 answer
2. asked by Jeff
3. 2,916 views
The measure of one of the equal angles in an isosceles triangle is twice the measure of the remaining angle. Determine the exact
1. 2 answers
2. asked by Anonymous
3. 2,887 views
A roller coaster ride includes a circular loop with radius R = 13.3 m. What minimum speed must the car have at the top to stay
1. 1 answer
2. asked by Nikita
3. 2,885 views
A rain cloud contains 2.66 x 10^7 kg of water vapor. How long will it take for a 2.00 kW pump to raise the same amount of water
1. 1 answer
2. asked by arriell
3. 2,679 views
find the surface area of a Cylindrical grain silo with hemispherical topheight=71 diamatere=62
1. 2 answers
2. asked by chandice
3. 2,648 views
David made a swing for his niece Sarah using ropes 2.4 m long, so that Sarah swings throuh an arc of length 1.2 m. Determine the
1. 2 answers
2. asked by Anonymous
3. 2,557 views
The 49 kg climber is supported in the "chimney" by the friction forces exerted on his shoes and back. The climber has reduced
1. 2 answers
2. asked by K
3. 2,502 views
Why was John Marshall's desire to strengthen the federal government so important during the early years of the nation?
1. 3 answers
2. asked by Anonymous
3. 2,500 views
Calculate the standard enthalpy of formation of CuO2, given that:2Cu2O + O2 ==> 4 CuO (-288 kJ) Cu2O ==> Cu + CuO (11 kJ) PLEASE
1. 2 answers
2. asked by Natalie
3. 2,380 views
A typical ten-pound car wheel has a moment of inertia of about 0.35 kg*m^2. The wheel rotates about the axle at a constant
1. 1 answer
2. asked by Anonymous
3. 2,328 views
If you mix KC2H3O2 and BaCl2 what is the molecular equation? There is a reaction because I did the experiment in class and the
1. 2 answers
2. asked by Holly Y
3. 2,258 views
Calculate the change in the enthalpy of the reaction.C4H4(g)+2H2(g)===>C4H8(g) Use the following: change in enthalpy of
1. 3 answers
2. asked by Natalie
3. 2,228 views
The only force acting on a 3.9 kg body as it moves along the positive x axis has an x component Fx = - 6x N, where x is in
1. 3 answers
2. asked by Jeff
3. 2,130 views
the 300-series shinkansen train of japan has aluminum cars, so that it can reach high speeds more easily. ten of the sixteen
1. 2 answers
2. asked by arriell
3. 2,083 views
Starting from rest a car undergoes a constant acceleration of 6 m/s2. How far will the car travel in the first second?
1. 1 answer
2. asked by Anonymous
3. 1,962 views
Let r be the monthly rent per unit in an apartment building with 100 units. All the units are rented at r= $900. One unit
1. 1 answer
2. asked by Chris
3. 1,951 views
In 1754,which country claimed the least amount of land in North America
1. 2 answers
2. asked by kevin
3. 1,776 views
-Write the arithmetic sequence 21,13,5,-3... in the standard form:a_n= -a_n=a_1+(n-1)d--so a_n=21+(n-1)-8 *a_n=-168-8n why isnt
1. 6 answers
2. asked by Ellie
3. 1,720 views
Find the inflection points for f(x) = 12x^5 + 45x^4 - 360x^3 + 7
1. 3 answers
2. asked by Z32
3. 1,571 views
Imagine you are on a local commission appointed to study the lack of proper recreation facilities for youth in your
1. 6 answers
2. asked by Travis
3. 1,538 views
At a club play, 117 tickets were sold. Adults' tickets cost $1.25 andchildren's tickets cost $0.75. In all, $129.75 was taken
1. 4 answers
2. asked by Esther
3. 1,498 views
If you mix KC2H3O2 and BaCl2 what is the molecular equation?I got 2 KC3H3O2 (aq) + BaCl2 (aq) --> 2 KCl (aq) + Ba(C2H3O2)2 (aq)
1. 1 answer
2. asked by Holly Y.
3. 1,433 views
you extract 10 g of benzoic acid from an ether solution with aqueous NaHCO3what is the min amount of concentrated HCl (37% by
1. 2 answers
2. asked by Anonymous
3. 1,429 views
What does this quote mean?"In the end, our society will be defined not only by what we create, but by what we refuse to
1. 1 answer
2. asked by Rachel
3. 1,371 views
Two blocks, A and B (with mass 50 kg and 100 kg, respectively), are connected by a string, as shown in the figure below. The
1. 1 answer
2. asked by Chan
3. 1,368 views
On a cold winter morning, a child sits on a sled resting on smooth ice. When the 9.19 kg sled is pulled with a horizontal force
1. 1 answer
2. asked by Emily
3. 1,357 views
A helicopter is rising at 4.7 m/s when a bag is dropped from it. (Assume that the positive direction is upward.)(a) After 2.0 s,
1. 7 answers
2. asked by Tay
3. 1,337 views
overall balanced reaction:14H+ + C2O7^2- + 6Fe^2+ -> 2Cr^3+ + 7H2O + 6Fe^3+ .5021g of impure sample containing potassium
1. 1 answer
2. asked by Anonymous
3. 1,317 views
A roller coaster ride includes a circular loop with radius R = 11.6 m. What minimum speed must the car have at the top to stay
1. 1 answer
2. asked by Nikita
3. 1,277 views
1. He works at/in the library.2. He works at/in the town hall. 3. He works at/in the hospital. (Which preposition do I have to
1. 3 answers
2. asked by Tom
3. 1,269 views
A professor has noticed that, even though attendance is not a component of the final grade for the class, students that attend
1. 3 answers
2. asked by Carrie
3. 1,253 views
write several paragraphs stating advantages and disadvantages to the unitary, confederate, and federal systems of government.
1. 1 answer
2. asked by Travis
3. 1,219 views
metal hydrides react with water to form hydrogen gas and the metal hydroxide. How do you calculate the mass of hydrogen gas that
1. 1 answer
2. asked by Brittany
3. 1,211 views
Learning to make candy from a recipe would relate most directly to which two of the 13 activity areas?A Math and science B
1. 1 answer
2. asked by Rosa
3. 1,172 views
Does Cl2 (chlorine) have a -2 charge or -4 charge since there are 2 of them?
1. 1 answer
2. asked by Holly Y.
3. 1,162 views
A satellite orbits at an average altitude of h = 409 km. What is its orbital speed? Use REarth = 6370 km andmEarth = 5.98 x
1. 3 answers
2. asked by Nikita
3. 1,108 views
22. What factor explains why the Democratic Republic of Congo has been economically unsuccessful?a. corrupt national leadership
1. 1 answer
2. asked by mysterychicken
3. 1,107 views
Hey guys, been a long time since I have done this. Please show your work. Thanks a lot!How many grams do 3.6 × 10^20 atoms of
1. 1 answer
2. asked by Randy
3. 1,099 views
In spite of factors that tend to restrict cell size, some plant cells are very large. For example, some marine algae have cells
1. 1 answer
2. asked by bubba
3. 1,089 views
A typical ten-pound car wheel has a moment of inertia of about 0.35 kg*m^2. The wheel rotates about the axle at a constant
1. 2 answers
2. asked by Anonymous
3. 1,089 views
you are in charge of bringing snacks to a picnic. you decide to buy grapes and pretzels. the grapes are $2.39 per pound and the
1. 1 answer
2. asked by catalyst
3. 1,085 views
find the prefix and root of overrule?
1. 2 answers
2. asked by mildred
3. 1,065 views
Karl's monthly expenses are $3,000. Of this 1/4 is for the mortgage payment, 1/8 is for credit cards, 2/5 if for the car
1. 1 answer
2. asked by Pamela
3. 1,060 views
what are two whole numbers whos product is 1,224 and whos sum is 70
1. 1 answer
2. asked by mary
3. 1,059 views
prove:(cscx-cotx)^4 x (cscx+cotx)^4 = 1
1. 0 answers
2. asked by Laura
3. 1,049 views
A typical ten-pound car wheel has a moment of inertia of about 0.35 kg*m^2. The wheel rotates about the axle at a constant
1. 1 answer
2. asked by Anonymous
3. 1,047 views
Can you please check these alsoDirections: Rewrite each sentence in the negative. 1. Il dit quelque chose à son copain. Answer:
1. 1 answer
2. asked by rachel
3. 1,042 views
At the faculty costume party, each teacher from Transylvania Middle School came dressed as his or her favorite creepy creature.
1. 2 answers
2. asked by Sam
3. 1,024 views
on a newman projection, what does it mean when there is a blank where a substituent should be? does that mean H or CH3?
1. 0 answers
2. asked by cathy
3. 1,005 views
For x>0, what value of x gives the least sum of x and its reciprocal? Show work.
1. 1 answer
2. asked by Anonymous
3. 1,001 views
Sodium Carbonate is said to be a strong base however when in aqueous solution it doesn't yield OH^- ions so how can we say its a
1. 1 answer
2. asked by Anonymous
3. 996 views
I sm having a difficul time trying to find information about captain john chaffin. please help
1. 4 answers
2. asked by billy
3. 963 views
At a faculty costume party, each teacher from transylvania Middle School came dressed as his or her favorite creepy creature.
1. 3 answers
2. asked by anomyous
3. 957 views
Elemental sulfur occurs as octatomic molecule S8. What is the mass of Fluorine gas needed to react completely with 19.9 g of
1. 1 answer
2. asked by Brittany
3. 953 views
a person whos mass is 102 kg stands on a beam supported by two ropes , A and B, he is standing on one foot to help you solve
1. 5 answers
2. asked by vic
3. 944 views
what do plants and animals need yo survive?
1. 1 answer
2. asked by sgfghgg
3. 942 views
Can anyone help me find the derivative of these functions?y = x^2x y = x^-cos(x) y = ln(7x^2 + 5y^2) sqrt(3x+y)=2+x^2y^2 ysec(x)
1. 9 answers
2. asked by Patrick
3. 931 views
write an equation in slope-intercept form of the line that passes through the given points.a. (-6,1), (3,-7) b. (-2/3,4), (6,
1. 2 answers
2. asked by <3
3. 904 views
how does mass differ from weightwhat is law of universal gravitation
1. 1 answer
2. asked by dai
3. 884 views
What are two quantities of an object launched parallel to the ground which are equal to zero?I think one of the two is vertical
1. 1 answer
2. asked by joshua
3. 883 views
Suppose that the probability distribution of a random variable x can be described by the formulaP(x) = x/15 For each of the
1. 0 answers
2. asked by Chinadoll
3. 882 views
How do you calculate and compare the gravitational and electrical forces between an electron and a proton separated by 10 to the
1. 1 answer
2. asked by Lauren
3. 871 views
Please help me solve this problem... thanks!1.Find the equation of the line that cntains the pont (5, -1) and has slope -1/2
1. 1 answer
2. asked by jojo
3. 866 views
Does a government ever have the right to sacrifice individual liberties in the name of freedom?
1. 6 answers
2. asked by Sara
3. 864 views
1. They wear pink and white stripe uniforms.2. They wear pink and white striped uniforms. (Which one is correct? Are both OK?)
1. 1 answer
2. asked by Tom
3. 863 views
what are the five maps in writeing?
1. 1 answer
2. asked by meshelle
3. 862 views
I hate to read and I did not read the book THe Guns of Navarone. I have to answer one question for four categories;
1. 2 answers
2. asked by Jacob
3. 858 views
Calcium nitrate and ammoonium fluoride react to form calcium fluoride, dinitrogenmonoxide and water vapor. What mass of each
1. 2 answers
2. asked by Brittany
3. 858 views
How do you simplify a expression with positive exponents?How do you write a fractions an expression using a negative exponent?
1. 4 answers
2. asked by Zava
3. 837 views
why did the industrialized nations of the world embark so aggressively upon imperialist ventures between 1880 and 1914?
1. 1 answer
2. asked by ben
3. 822 views
At noon, ship A is 10 nautical miles due west of ship B. Ship A is sailing west at 18 knots and ship B is sailing north at 22
1. 1 answer
2. asked by Anonymous
3. 819 views
What are the meanings of the following literary terms:1. Biological Criticism 2. Historical Criticism 3. Reader-Response
1. 1 answer
2. asked by Chante
3. 818 views
The block in the figure below lies on a horizontal frictionless surface and is attached to the free end of the spring, with a
1. 2 answers
2. asked by henry
3. 809 views
How would you describe a dead skunk
1. 3 answers
2. asked by hehehehehehehe
3. 808 views
Show me a plot diagram example please.
1. 1 answer
2. asked by Jordan
3. 799 views
How are elements represented on a periodic chart?
1. 0 answers
2. asked by Jordan
3. 797 views
Learning to make candy from a recipe would relate most directly to which two of the 13 activity areas?A Math and science B
1. 1 answer
2. asked by Rosa
3. 794 views
Constitutional scholars have pointed out there is an inconsistency in Justice Marshall's opinion with respect to what the
1. 2 answers
2. asked by Anonymous
3. 792 views
select a country and an economic concern, such as population, unemployment, etc. Search the Library and Internet for data sets
1. 1 answer
2. asked by John
3. 791 views
A spherical tree ornament is to be painted in bright colors. If the ornament has a diameter of 4 cm,how much paint is needed?
1. 3 answers
2. asked by Chris
3. 784 views
This is the layout of the McDougal's backyard.The scale is 1 centimeters to 5 centimeters.The actual area of the pool is 375
1. 2 answers
2. asked by Elizabeth
3. 773 views
Why was the Phoenician alphabet a significant development?
1. 1 answer
2. asked by Troy
3. 764 views
in 1994, the profit is $250,000in 1995, the profit is $280,000 in 1996, the profit is $240,000 in 1997, the profit is $320,000
1. 1 answer
2. asked by kamilla
3. 763 views
A tire cruises up an embankment at 30° for 1 meter before launching across Piranha Lake. What is the velocity of the tire at
1. 7 answers
2. asked by Sara
3. 758 views
An isosceles trapezoid is inscribed under the graph oof y =cos x. what are the dimensions which will give the greatest area?
1. 2 answers
2. asked by calculus
3. 757 views
what is the equation including the mechanism for the reaction of 1-butanol with NaCl+ NaBr in H2S04What are the equations for
1. 1 answer
2. asked by Lori
3. 754 views
Author: John DonnePoem: Elegy 19, To His Mistress Going to Bed. In this poem, is the author speaking of his new bride who is
1. 2 answers
2. asked by Kwesley
3. 753 views
Suppose that the probability distribution of a random variable x can be described by the formulaP(x) = x/15 For each of the
1. 0 answers
2. asked by Kelly
3. 747 views
Seth has passed everyone in the race.What part of speech is "has passed"?
1. 3 answers
2. asked by Teresa
3. 738 views
The measure of one of the equal angles in an isoscles trinagle is twice the measure of the remaining angle. Determine the exact
1. 1 answer
2. asked by Anonymous
3. 731 views
Using formula P(x) = x/15For each of the values x = 1, 2, 3, 4, and 5. a. probability distribution of x. b. Show that the
1. 0 answers
2. asked by Chinadoll
3. 728 views
How has the geography and history of the South helped to create a diverse population that continues to grow?
1. 1 answer
2. asked by Sarah
3. 721 views
Can you check these...Directions: Répondez que non Part I 1. Ta grand-mère travaille encore? Answer: Ma grand-mère ne
1. 1 answer
2. asked by rachel
3. 719 views

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