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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. 6,353 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. 6,304 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. 4,393 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. 3,646 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. 3,613 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. 3,546 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. 3,431 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. 2,920 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. 2,891 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. 2,888 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. 2,683 views
find the surface area of a Cylindrical grain silo with hemispherical topheight=71 diamatere=62
1. 2 answers
2. asked by chandice
3. 2,650 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. 2,560 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. 2,505 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. 2,504 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. 2,383 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. 2,334 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. 2,261 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. 2,233 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. 2,133 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. 2,085 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. 1,965 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. 1,958 views
In 1754,which country claimed the least amount of land in North America
1. 2 answers
2. asked by kevin
3. 1,781 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. 1,725 views
Find the inflection points for f(x) = 12x^5 + 45x^4 - 360x^3 + 7
1. 3 answers
2. asked by Z32
3. 1,578 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. 1,542 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. 1,500 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. 1,436 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. 1,431 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. 1,378 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. 1,377 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. 1,359 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. 1,340 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. 1,322 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. 1,282 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. 1,275 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. 1,258 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. 1,222 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. 1,215 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. 1,177 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. 1,166 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. 1,113 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. 1,112 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. 1,102 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. 1,091 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. 1,091 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. 1,089 views
find the prefix and root of overrule?
1. 2 answers
2. asked by mildred
3. 1,068 views
what are two whole numbers whos product is 1,224 and whos sum is 70
1. 1 answer
2. asked by mary
3. 1,065 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. 1,063 views
prove:(cscx-cotx)^4 x (cscx+cotx)^4 = 1
1. 0 answers
2. asked by Laura
3. 1,051 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. 1,050 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. 1,045 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. 1,027 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. 1,009 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. 1,004 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. 998 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. 968 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. 960 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. 955 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. 948 views
what do plants and animals need yo survive?
1. 1 answer
2. asked by sgfghgg
3. 944 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. 936 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. 907 views
how does mass differ from weightwhat is law of universal gravitation
1. 1 answer
2. asked by dai
3. 890 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. 887 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. 884 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. 875 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. 870 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. 867 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. 866 views
what are the five maps in writeing?
1. 1 answer
2. asked by meshelle
3. 864 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. 861 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. 860 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. 841 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. 825 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. 825 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. 822 views
How would you describe a dead skunk
1. 3 answers
2. asked by hehehehehehehe
3. 814 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. 813 views
Show me a plot diagram example please.
1. 1 answer
2. asked by Jordan
3. 802 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. 800 views
How are elements represented on a periodic chart?
1. 0 answers
2. asked by Jordan
3. 800 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. 796 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. 795 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. 790 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. 775 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. 768 views
Why was the Phoenician alphabet a significant development?
1. 1 answer
2. asked by Troy
3. 767 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. 761 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. 760 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. 760 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. 756 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. 750 views
Seth has passed everyone in the race.What part of speech is "has passed"?
1. 3 answers
2. asked by Teresa
3. 740 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. 736 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. 730 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. 724 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. 722 views

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