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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
3 answers
asked by
Anonymous
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
2 answers
asked by
David
6,300 views
Ionization energy is defined as the minimum energy required to remove an electron from the ground state (n0) to infinity (n∞).
3 answers
asked by
Sarah
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
2 answers
asked by
Vince
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
2 answers
asked by
Sarah
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=?
2 answers
asked by
Sophie
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
2 answers
asked by
arriell
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 answer
asked by
Jeff
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
2 answers
asked by
Anonymous
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 answer
asked by
Nikita
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 answer
asked by
arriell
2,679 views
find the surface area of a Cylindrical grain silo with hemispherical top
height=71 diamatere=62
2 answers
asked by
chandice
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
2 answers
asked by
Anonymous
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
2 answers
asked by
K
2,502 views
Why was John Marshall's desire to strengthen the federal government so important during the early years of the nation?
3 answers
asked by
Anonymous
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
2 answers
asked by
Natalie
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 answer
asked by
Anonymous
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
2 answers
asked by
Holly Y
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
3 answers
asked by
Natalie
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
3 answers
asked by
Jeff
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
2 answers
asked by
arriell
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 answer
asked by
Anonymous
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 answer
asked by
Chris
1,951 views
In 1754,which country claimed the least amount of land in North America
2 answers
asked by
kevin
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
6 answers
asked by
Ellie
1,720 views
Find the inflection points for f(x) = 12x^5 + 45x^4 - 360x^3 + 7
3 answers
asked by
Z32
1,571 views
Imagine you are on a local commission appointed to study the lack of proper recreation facilities for youth in your
6 answers
asked by
Travis
1,538 views
At a club play, 117 tickets were sold. Adults' tickets cost $1.25 and
children's tickets cost $0.75. In all, $129.75 was taken
4 answers
asked by
Esther
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 answer
asked by
Holly Y.
1,433 views
you extract 10 g of benzoic acid from an ether solution with aqueous NaHCO3
what is the min amount of concentrated HCl (37% by
2 answers
asked by
Anonymous
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 answer
asked by
Rachel
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 answer
asked by
Chan
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 answer
asked by
Emily
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,
7 answers
asked by
Tay
1,337 views
overall balanced reaction:
14H+ + C2O7^2- + 6Fe^2+ -> 2Cr^3+ + 7H2O + 6Fe^3+ .5021g of impure sample containing potassium
1 answer
asked by
Anonymous
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 answer
asked by
Nikita
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
3 answers
asked by
Tom
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
3 answers
asked by
Carrie
1,253 views
write several paragraphs stating advantages and disadvantages to the unitary, confederate, and federal systems of government.
1 answer
asked by
Travis
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 answer
asked by
Brittany
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 answer
asked by
Rosa
1,172 views
Does Cl2 (chlorine) have a -2 charge or -4 charge since there are 2 of them?
1 answer
asked by
Holly Y.
1,162 views
A satellite orbits at an average altitude of h = 409 km. What is its orbital speed? Use REarth = 6370 km and
mEarth = 5.98 x
3 answers
asked by
Nikita
1,108 views
22. What factor explains why the Democratic Republic of Congo has been economically unsuccessful?
a. corrupt national leadership
1 answer
asked by
mysterychicken
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 answer
asked by
Randy
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 answer
asked by
bubba
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
2 answers
asked by
Anonymous
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 answer
asked by
catalyst
1,085 views
find the prefix and root of overrule?
2 answers
asked by
mildred
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 answer
asked by
Pamela
1,060 views
what are two whole numbers whos product is 1,224 and whos sum is 70
1 answer
asked by
mary
1,059 views
prove:(cscx-cotx)^4 x (cscx+cotx)^4 = 1
0 answers
asked by
Laura
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 answer
asked by
Anonymous
1,047 views
Can you please check these also
Directions: Rewrite each sentence in the negative. 1. Il dit quelque chose à son copain. Answer:
1 answer
asked by
rachel
1,042 views
At the faculty costume party, each teacher from Transylvania Middle School came dressed as his or her favorite creepy creature.
2 answers
asked by
Sam
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?
0 answers
asked by
cathy
1,005 views
For x>0, what value of x gives the least sum of x and its reciprocal? Show work.
1 answer
asked by
Anonymous
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 answer
asked by
Anonymous
996 views
I sm having a difficul time trying to find information about captain john chaffin. please help
4 answers
asked by
billy
963 views
At a faculty costume party, each teacher from transylvania Middle School came dressed as his or her favorite creepy creature.
3 answers
asked by
anomyous
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 answer
asked by
Brittany
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
5 answers
asked by
vic
944 views
what do plants and animals need yo survive?
1 answer
asked by
sgfghgg
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)
9 answers
asked by
Patrick
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,
2 answers
asked by
<3
904 views
how does mass differ from weight
what is law of universal gravitation
1 answer
asked by
dai
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 answer
asked by
joshua
883 views
Suppose that the probability distribution of a random variable x can be described by the formula
P(x) = x/15 For each of the
0 answers
asked by
Chinadoll
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 answer
asked by
Lauren
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 answer
asked by
jojo
866 views
Does a government ever have the right to sacrifice individual liberties in the name of freedom?
6 answers
asked by
Sara
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 answer
asked by
Tom
863 views
what are the five maps in writeing?
1 answer
asked by
meshelle
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;
2 answers
asked by
Jacob
858 views
Calcium nitrate and ammoonium fluoride react to form calcium fluoride, dinitrogenmonoxide and water vapor. What mass of each
2 answers
asked by
Brittany
858 views
How do you simplify a expression with positive exponents?
How do you write a fractions an expression using a negative exponent?
4 answers
asked by
Zava
837 views
why did the industrialized nations of the world embark so aggressively upon imperialist ventures between 1880 and 1914?
1 answer
asked by
ben
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 answer
asked by
Anonymous
819 views
What are the meanings of the following literary terms:
1. Biological Criticism 2. Historical Criticism 3. Reader-Response
1 answer
asked by
Chante
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
2 answers
asked by
henry
809 views
How would you describe a dead skunk
3 answers
asked by
hehehehehehehe
808 views
Show me a plot diagram example please.
1 answer
asked by
Jordan
799 views
How are elements represented on a periodic chart?
0 answers
asked by
Jordan
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 answer
asked by
Rosa
794 views
Constitutional scholars have pointed out there is an inconsistency in Justice Marshall's opinion with respect to what the
2 answers
asked by
Anonymous
792 views
select a country and an economic concern, such as population, unemployment, etc. Search the Library and Internet for data sets
1 answer
asked by
John
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?
3 answers
asked by
Chris
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
2 answers
asked by
Elizabeth
773 views
Why was the Phoenician alphabet a significant development?
1 answer
asked by
Troy
764 views
in 1994, the profit is $250,000
in 1995, the profit is $280,000 in 1996, the profit is $240,000 in 1997, the profit is $320,000
1 answer
asked by
kamilla
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
7 answers
asked by
Sara
758 views
An isosceles trapezoid is inscribed under the graph oof y =cos x. what are the dimensions which will give the greatest area?
2 answers
asked by
calculus
757 views
what is the equation including the mechanism for the reaction of 1-butanol with NaCl+ NaBr in H2S04
What are the equations for
1 answer
asked by
Lori
754 views
Author: John Donne
Poem: Elegy 19, To His Mistress Going to Bed. In this poem, is the author speaking of his new bride who is
2 answers
asked by
Kwesley
753 views
Suppose that the probability distribution of a random variable x can be described by the formula
P(x) = x/15 For each of the
0 answers
asked by
Kelly
747 views
Seth has passed everyone in the race.
What part of speech is "has passed"?
3 answers
asked by
Teresa
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 answer
asked by
Anonymous
731 views
Using formula P(x) = x/15
For each of the values x = 1, 2, 3, 4, and 5. a. probability distribution of x. b. Show that the
0 answers
asked by
Chinadoll
728 views
How has the geography and history of the South helped to create a diverse population that continues to grow?
1 answer
asked by
Sarah
721 views
Can you check these...
Directions: Répondez que non Part I 1. Ta grand-mère travaille encore? Answer: Ma grand-mère ne
1 answer
asked by
rachel
719 views
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