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2011
January
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January 16, 2011
Rank the following fertilizers in decreasing order of mass percentage of nitrogen:
NH3 NH4NO3 (NH4)2HPO4 KNO3 (NH4)H2PO4
4 answers
asked by
Anonymous
14,045 views
a student standing on the roof of a 50 meter high building kicks a stone at a horizontal speed of 4 meters per second, how much
6 answers
asked by
jack
11,429 views
A model rocket leaves the ground, heading straight up at 47 m/s.
(a) What is its maximum altitude? m What are its speed and
1 answer
asked by
Jen
6,793 views
Determine the Ka of an acid whose 0.294 M solution has a pH of 2.80.
1 answer
asked by
rena
5,830 views
A motorist drives along a straight road at a constant speed of 15.0 m/s. just as she passes a parked police officer,the officer
2 answers
asked by
kevin
4,991 views
If 100. mL of 0.400 M Na2SO4 is added to 200. mL of 0.600 M NaCl, what is the concentration of Na+ ions in the final solution?
2 answers
asked by
emoni
3,645 views
Find the area of the following ellipse (round to nearest tenth).
2a = 10 cm; 2b = 24 cm. a = How many cm2?
1 answer
asked by
Ivan
3,461 views
A student pulls a 60 newton sled with a force having a magnitude of 20 newtons. what is the magnitude of the force that the sled
5 answers
asked by
jill
3,208 views
A large box whose mass is 20 kg rests on a frinctionless floor. A mover pushes on the box with a force of 250 N at an angle of
1 answer
asked by
Brian
2,978 views
Find the amount in each case.
a) 8% is 56kg.
5 answers
asked by
*multi*
2,704 views
on the surface of earth, a spacecraft has a mass of 2.00x10^4 kilograms. What is the mass of the spacecraft at a distance of one
2 answers
asked by
jill
2,635 views
How many uniform, identical textbooks of width 25.0 cm can be stacked on top of each other on a level surface without the stack
1 answer
asked by
melissa
2,476 views
a = 12 cm
b = 14 cm h = 8 cm. Compute the area. How many cm2?
2 answers
asked by
Ivan
2,183 views
A heat pump is proposed that uses 50 degree F ground water to heat a house to 70 Degree F. The groundwater experiences a
1 answer
asked by
chris
2,152 views
Darwin is considered the "father of evolutionary biology." Four of his contributions to the field of evolutionary biology are
1 answer
asked by
Mary
2,041 views
Write a short paragraph that traces the rise of Japan from an isolated society to a major industrial and imperial power.
I have
5 answers
asked by
Lauren
1,904 views
Compute the area of a triangle with sides.
15 × 15 × 18 a = How many square units?
1 answer
asked by
Ivan
1,880 views
What is the pH of a buffer system prepared by dissolving 10.70 grams of NH4Cl and 25.00 mL of 12 M NH3 in enough water to make
1 answer
asked by
emoni
1,867 views
The punter on a football team tries to kick a football so that it stays in the air for a long "hang time." If the ball is kicked
2 answers
asked by
shannon
1,859 views
I am trying to write a 1500 words review of two articles that are discussing ethical perspectives or business ethics for two
1 answer
asked by
kim
1,850 views
If 0.10 M potassium chromate is slowly added to a solution containing 0.50 M AgNO3 and 0.50 M Ba(NO3)2. What is the Ag+
2 answers
asked by
noel
1,795 views
Two people are carrying a uniform 788.0 N log through the forest. Bubba is 2.0 m from one end of the log (x), and his partner is
1 answer
asked by
Joan
1,764 views
C2H2(g) + 2 H2(g)--> C2H6(g)
Information about the substances involved in the reaction represented above is summarized in the
1 answer
asked by
Brenda
1,706 views
At 25 °C, the density of a 50 % (by mass) ethanol/water solution is 0.914 g/cc. Given that the partial molar volume of water in
1 answer
asked by
syl
1,578 views
C2H2(g) + 2 H2(g)--> C2H6(g)
Information about the substances involved in the reaction represented above is summarized in the
1 answer
asked by
Brenda
1,554 views
0.10 M potassium chromate is slowly added to a solution containing 0.50 M AgNO3 and 0.50 M Ba(NO3)2. What is the Ag+
3 answers
asked by
emoni
1,533 views
A gardener is installing a circular garden. The radius of the circle 28 feet. He needs to know the circumference in order to buy
3 answers
asked by
Ivan
1,507 views
True/False
1. Diatomic molecules contain two atoms?T 2. Electrons travel in pairs? T 3. The energies needed to break chemical
1 answer
asked by
Chem
1,471 views
1. Could a horizontal axis of rotation be used satisfactorily in an experiment uniform circular motion? Explain
2 answers
asked by
Andrew
1,442 views
Calculate the pH of a 0.800 M NaCH3CO2 solution. Ka for acetic acid, CH3CO2H, is
0 answers
asked by
noel
1,418 views
An electron in a hydrogen atom could undergo any of the transitions listed below, by emitting light. Which transition would give
3 answers
asked by
Job
1,388 views
On a worksheet, the adjusted balance of the Depreciation Expense account is extended to the __________ column. (Points: 5)
Income
0 answers
asked by
Lisa
1,382 views
Find the area of the following circle. ( = 3.14; round answer to the nearest whole number). Circumference = 120 cm. (Hint: Find
1 answer
asked by
Ivan
1,372 views
0.10 M potassium chromate is slowly added to a solution containing 0.50 M AgNO3 and 0.50 M Ba(NO3)2. What is the Ag+
1 answer
asked by
noel
1,350 views
Authors uses literary devices such as foreshadowing,symbolism,similes,metaphor,personification, and allusions.
What are two
2 answers
asked by
Seleta
1,349 views
In an arithmetic sequence, the first term is 100 and the sixth term is 85. Find the common difference. Then, find the 50th term
3 answers
asked by
lYDIA
1,326 views
An electric vehicle starts from rest and accelerates at a rate of 2.3 m/s2 in a straight line until it reaches a speed of 17
1 answer
asked by
Ethan
1,289 views
When the sun's angle of elevation is 30 degree the shadow of a post is 6 ft longer than when the angle is 45
degree. find the
1 answer
asked by
Cas'
1,274 views
A startled armadillo leaps upward, rising 0.515 m in the first 0.203 s. (a) What is its initial speed as it leaves the ground?
2 answers
asked by
Ethan
1,262 views
which poem sounds the best and easier to anaylze and explain to others about?
Im gonna present this to grade 12th english class.
1 answer
asked by
candybar
1,259 views
Write a 200-300 word summary describing a time when you had to test a theory. This theory may be something you have tested at
1 answer
asked by
Angela
1,251 views
Find the area of the sector, given a central angle of 55degrees and a radius of 5.7 in. Round your answer to the nearest tenth.
1 answer
asked by
CJ
1,249 views
An electron moving along the x axis has a position given by x = 14 te-t m, where t is in seconds. How far is the electron from
0 answers
asked by
Ethan
1,190 views
Given the expression (3s-4)(4s+5), explain in words the steps taken to completely simplify the expression
2 answers
asked by
tanya
1,182 views
I forgot to include these other sentences. I hope you can have a look at them, too.
1) If death, unlike sleep, is an end in
1 answer
asked by
Franco
1,153 views
What rise in temperature occurs when 10g of steam at 100 degree celcius are passed into 400g of water at 10 degrees celcius
0 answers
asked by
Sarah
1,144 views
When policymakers set prices by legal decree, they...?
a. obscure the signals that normally guide the allocation of society’s
5 answers
asked by
Anonymous
1,132 views
compare asexual reproduction and sexual reproduction
1 answer
asked by
Anonymous
1,122 views
How do you explain to 6 year old what a rectangular coordinate system is and why it is important in math. What information is
1 answer
asked by
Mike
1,095 views
If a polonium-210 (Po-210) atom has just decayed, how close can the ejected
alpha particle get to a neighboring Po-210 nucleus?
1 answer
asked by
Bobby
1,080 views
solve this in 3 variables..
i don't know where to start,,:(( y/4+z/3-x/2=4 y/2-x/6+z/15=2 y/8+z/5-x/3=2
1 answer
asked by
rose
1,071 views
A car P is moving with uniform speed of 5m/s towards a carriage of mass 9kg at rest kept on the rails at point B. the height of
0 answers
asked by
sreeram
1,068 views
What is a typical speed for a N2 molecule in this room?
a) 50 m/s b) 500m/s c) 1500 m/s
0 answers
asked by
emoni
1,063 views
The sides of a triangular lot are represented by x, 2x, and 3x + 2. Find each side if the perimeter is 362 feet.
What are the 3
1 answer
asked by
Ivan
1,061 views
some reasons why the metis were frowing dissatrisfied with canadian government
4 answers
asked by
pkd
1,061 views
A certain compound contains carbon, hydrogen , and oxygen. When 1.00 grams of this compound are burned in oxygen gas 1.47 grams
6 answers
asked by
Patrick
1,048 views
x-3y=1
x2-2xy+9y2=17 solve simalteneously
3 answers
asked by
motlhalefi
1,038 views
A square measures 8 inches on each side. What is its area rounded off to the nearest whole number. (Note: 1 inch ≈ 2.54 cm)
3 answers
asked by
Ivan
1,017 views
A 16.0-m uniform ladder weighing 490 N rests against a frictionless wall. The ladder makes a 63.0° angle with the horizontal.
(a
1 answer
asked by
mee
1,011 views
Cassandra is repaying an installment loan of 3,500 with 20 equal payments of 196.00 each.What is the annual percentage rate of
3 answers
asked by
Jessie
1,008 views
Find the length of the intercepted arc with radius 2.5 cm and a central angle of 95degrees. Round your answer to the nearest
1 answer
asked by
CJ
996 views
Is this answer correct?
Jeremy is in Grade 8. He has a paper route and wants to save for his college education. He determines
1 answer
asked by
Alicia
986 views
13y=10
x+y+z=39 16x=13z
1 answer
asked by
aldren
976 views
The question is: Hydrogen and oxygen gas combine explosively to produce water. Write a balanced chemical equation for this
1 answer
asked by
Rachael
965 views
a uniform bar of mass is supported by support pivoted at top about which bar can swing like simple pendulum. If force F is
1 answer
asked by
bharat narke
960 views
Find the area of the following circle.
r = 9 yd. a = How many square yards?
1 answer
asked by
Ivan
958 views
Explosives are used to blow a rock apart. The explosion blows the rock into three fragments. Two fragments go off at a 76 degree
1 answer
asked by
Joan
949 views
Calculate the work necessary to compress air in an isolated cylinder with initial and final volumes of 6.0 and 1.2 ft^3,
1 answer
asked by
chris
944 views
find the slope intercept equation of the line that has the given characteristics.
slope 6.7 and y intercept (0,-7) Thanks.
1 answer
asked by
robbie
934 views
What was the average speed in km/h of a car that travels 400.0 km in 4.5 h?
2 answers
asked by
Anonymous
927 views
In triangle ABC,
• AB is x cm long • BC is twice the length of AB • AC is 10 cm longer than AB. The perimeter of the
2 answers
asked by
Anonymous
925 views
A 5.00-gram sample of glucose, C6H12O6, [molar mass = 180.] is dissolved 10.0 grams of water
What is the molality of the glucose
1 answer
asked by
Mark
918 views
would saying the patients condition has improved with new medication be an examploe of de-identified information?
0 answers
asked by
isabell
904 views
(a) If the position of a particle is given by x = 16t - 7t3, where t is in seconds and x is in meters, when is the particle's
1 answer
asked by
Ethan
903 views
The Net Income amount from the Income Statement is used as a line item on which statement? (Points: 5)
Profit and loss statement
1 answer
asked by
Lisa
893 views
A laser emitting at 632.8nm illuminates a double slit. A screen is positioned 2.00 m from the slits. Interference fringes are
1 answer
asked by
Tom
883 views
Part One of Two:
Ø Resources: Appendix A, Appendix C, and Table 8.3 on pp. 258-259 of Medical Insurance Ø Due Date: Day 7
1 answer
asked by
brandi
878 views
Joe is sledding down a snow hill when he collides with Mike half way down the hill. Joe and the sled have a mass of 65 kg and
0 answers
asked by
Sara
869 views
A solid of mass 400g in air and when partly is immersed in a certain liquid it has a mass 320g. Given that the relative density
0 answers
asked by
Asamoah
866 views
a ladder AP of length 5m inclined to a vertical wall is slipping over a horizontal surface with velocity 2m/s , when A is at a
1 answer
asked by
sreeram
857 views
BISHOP COMPANY
Inv. No. Check Date Description Name or Date No. Terms Amount Mar. 1 Received merchandise and invoice Soy
0 answers
asked by
zion
853 views
which poem is the best?
can you guys help me pick the best poem to analyze and present to class? What would be your second pick
1 answer
asked by
mikki
850 views
a)385 data loss incidents took place
b)110 million people were affected by personal data loss incidents c)3% of all data loss
4 answers
asked by
Sue
849 views
find mass of a rocket as a function of time,if it moves with constant acceleration a in absence of external forces.the gas
1 answer
asked by
sreeram
848 views
During a hard sneeze, your eyes might shut for 0.58 s. If you are driving a car at 92 km/h during such a sneeze, how far does
2 answers
asked by
Ethan
837 views
A certain compound contains carbon, hydrogen , and oxygen. When 1.00 grams of this compound are burned in oxygen gas 1.47 grams
0 answers
asked by
Patrick
828 views
Hi,
IS it correct that DHCP is a protocol that enables network devices to share a pool of IP addresses. Is it also correct that
0 answers
asked by
freddo
827 views
multiply (2�ã7-5�ã3)(8�ã7-5�ã3)
4 answers
asked by
Anonymous
816 views
---I asked this question
Solve the following right triangles: a. a=117 ft, b=16.35 ft b. B=8 degrees 29',and a=32.8 ft Reiny was
2 answers
asked by
Jad
815 views
Choose the equations which correctly describe the dissolution of a compound into water.
a) CaBr2(s)-> Ca2+(aq) + Br2(l) b) sodium
5 answers
asked by
Erika
802 views
need to take an object from point a to point b and back to a and your only allowed to touch the project once to start. any
0 answers
asked by
matt
791 views
Calculate the number density of strontium titanate (SrTiO3), ρ = 5.12 g cm
-3
1 answer
asked by
Bobby
790 views
do you think dogs are better than cats ?
1 answer
asked by
kattie
785 views
CHOI ENTERPRISES
Inv. No. Check Date Description Name or Date No. Terms Amount Dec. 16 Merchandise sold (cost $4,600) Hanna Seppa
0 answers
asked by
zion
777 views
1<3x+5<12
1 answer
asked by
samuel
776 views
If the voltage between the two plates of an electric air cleaner is 500 V, how fast would a 10-12 kg soot particle with -1 x
1 answer
asked by
sabrina
768 views
Two objects collide and bounce off one another. After the collision, object m1 = 1.67 kg moves off at 14.5 m/s at a heading of
0 answers
asked by
Joan
760 views
In a business report what spacing should you use between lines?
0 answers
asked by
Anonymous
758 views
which of the functions,P,H,L,R, is a polynomial.The following are a number of terms. determine the coefficient and the degree of
1 answer
asked by
lilian ahmed
757 views
we have to pick a famous painting to do a art project on. I picked the famous Mona Lisa. My question is that why does the Mona
2 answers
asked by
Monalica
755 views
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