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Questions Asked in 2010

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January 2010
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Most Popular Questions

1. Which one of the following factors is one of the principles ofdesign? A. Form C. Pattern B. Color D. Balance 2. Of the
1. 11 answers
2. asked by Anonymous
3. 38,125 views
Enter the net ionic equation for the reaction of aqueous sodium chloride with aqueous silver nitrate
1. 22 answers
2. asked by ej
3. 36,801 views
You throw a 20-N rock vertically into the air from ground level. You observe that when it is 15.0 m above the ground, it is
1. 3 answers
2. asked by anton
3. 29,375 views
A 1000 kg car pushes a 2000 kg truck that has a dead battery. When the drive steps on the accelerator, the drive wheels of the
1. 3 answers
2. asked by Sarah
3. 23,961 views
How do I find the surface area of a sphere with a radius of 8cm?
1. 43 answers
2. asked by billy
3. 23,499 views
what volume (in ML) of a 0.150 M HNO3 solution is required to completely react wtih 35.7 mL of a 0.108 M Na2CO3 solution
1. 4 answers
2. asked by samantha
3. 22,998 views
this check my answerWords: Deterrent, implication, inequity, infirmity, infringe, innovation, revitalize, sparse, subjective,
1. 14 answers
2. asked by jae
3. 22,855 views
My answers1) Assail 2)Banal 3)mercenary 4)allusion 5)Taint 6) appease 7)Arbitrary 8)syndrome 9)altruistic 10)euphemism MY OLDER
1. 12 answers
2. asked by jae
3. 22,309 views
An 8.00 g bullet is fired into a 250 g block that is initially at rest at the edge of a table of 1.00 m height (Fig. P6.26). The
1. 6 answers
2. asked by having trouble
3. 21,862 views
a 20 kg loudspeaker is suspended 2m below a ceiling by two 3m-long cables that angle outward at equal angles. what is the
1. 3 answers
2. asked by sam
3. 21,350 views
Question 1What is one of the first steps in a research project? to think about the purpose of the research project. to consult a
1. 23 answers
2. asked by christopher
3. 21,159 views
A string is wrapped around a uniform solid cylinder of radius r. The cylinder can rotate freely about its axis. The loose end of
1. 2 answers
2. asked by Gabe
3. 20,667 views
What is the tension in the rope of this figure description?60 kg person is hanging in the air on a rope attached to a pulley,
1. 3 answers
2. asked by Sarah
3. 20,458 views
Thomas Kratzer is the purchasing manager for the headquarters of a large insurance company chain with a central inventory
1. 5 answers
2. asked by Jackson
3. 19,972 views
Two snowcats tow a housing unit to a new location at McMurdo Base, Antarctica, as shown in Figure 4-46. The sum of the forces A
1. 5 answers
2. asked by AMI
3. 19,766 views
A ball is thrown straight downward with a speed of 0.50 m/s from a height of 4.0 meters. What is the speed of the ball 0.70
1. 11 answers
2. asked by Priscilla
3. 19,665 views
Identify the pronouns in each sentence. Then decide if each is nominative (N), objective (O), or possessive (P).1. Why wasn't he
1. 25 answers
2. asked by Sarah Perez
3. 19,415 views
What is the molarity of ZnCl2 that forms when 30.0g of zinc completely reacts with CuCl2 according to the following reaction?
1. 3 answers
2. asked by Lisa, Help needed!
3. 18,857 views
20) The ideal value of i (van't Hoff factor) for (NH4)3PO4.A) 2 B) 5 C) 4 D) 3 E) 1 I know the answer but how are problems like
1. 5 answers
2. asked by Jessie
3. 18,209 views
A spring-loaded toy gun is used to shoot a ball of mass m=1.5 kg straight up in the air. The spring has spring constant k=667
1. 2 answers
2. asked by Eden
3. 18,203 views
1. _______________________ is the science of predicting the weather. (1 point)Climatology Ecology Meterology Botany 2.
1. 15 answers
2. asked by vensu
3. 17,773 views
Choose one of the following topics. Write an 8-paragraph sentence paragraph that fully develops the topic.a. following
1. 5 answers
2. asked by jackie rios
3. 17,720 views
I don't even know how to start this...The valence electron configurations of several atoms are shown below. How many bonds can
1. 12 answers
2. asked by Stacy
3. 17,594 views
Now assume that the pitcher in Part D throws a 0.145-kg baseball parallel to the ground with a speed of 32 m/s in the +x
1. 4 answers
2. asked by Eden
3. 17,214 views
IN the poem “Swift Things are Beautiful” by Elizabeth Coatsworth reveals that every thing is beautiful in its own way.
1. 13 answers
2. asked by Hannah
3. 16,650 views
The reason she is not here is because she is ill.misplaced modifier dangling modifier faulty predication incomplete comparison
1. 1 answer
2. asked by christopher
3. 15,845 views
What is the complete ionic equation for CaS(aq) +CuCl2(aq)=CuS(s)+CaCl2(aq)
1. 4 answers
2. asked by lupe
3. 15,744 views
I balanced the equation:HBr(aq) +NH3(aq)->NH4Br I need to find the ionic equation and the net ionic equation
1. 4 answers
2. asked by KELLY
3. 15,438 views
A gaseous mixture of O2 and N2 contains 30.8 % nitrogen by mass. What is the partial pressure of oxygen in the mixture if the
1. 1 answer
2. asked by chelsey
3. 15,235 views
Write a molecular equation for the precipitation reaction that occurs (if any) when the following solutions are mixed. If no
1. 4 answers
2. asked by Jerry
3. 15,121 views
A piece of wire 40cm long is cut into two pieces. One piece is bent into the shape of a square and the other is bent into the
1. 1 answer
2. asked by sh
3. 14,955 views
A bus travels 280 km south along a straight path with an average velocity of 88 km/h to the south. The bus stops for 24 min.
1. 7 answers
2. asked by Jasmine
3. 14,796 views
A sprinter explodes out of the starting block with an acceleration of +2.3 m/s^2, which she sustains for 1.2 s. Then, her
1. 3 answers
2. asked by Heather
3. 14,326 views
In a saturated solution of Zn(OH)2 at 25 degrees Celsius the value of [OH-] is 2.0x10^-6M. What is the value of the
1. 4 answers
2. asked by Anonymous
3. 14,296 views
In a solution prepared by mixing CH3OH with H2O the major species pesent are1. a. CH3+, OH, and H2O 2. b. CH3O, H+, and H2O 3.
1. 6 answers
2. asked by Mark
3. 14,083 views
In coming to a stop a car leaves skid marks 92m long on the highway. Assuming a decceleration of 7.00m/s^2, estimate the speed
1. 2 answers
2. asked by john
3. 14,016 views
how can adding doubles help you multiply by 2?
1. 17 answers
2. asked by boo
3. 14,012 views
CAN SOMEONE PLEASE CHECK MY ANSWERS. (MY ANSWERS ARE AT THE BOTTOM...)1. Which one of the following factors is one of the
1. 19 answers
2. asked by Anonymous
3. 13,972 views
An engineer in a locomotive sees a car stuckon the track at a railroad crossing in front of the train. When the engineer first
1. 7 answers
2. asked by Jennifer
3. 13,924 views
Ka=1.8x10^-5. How do you calculate the value of pKa?
1. 5 answers
2. asked by Vivian
3. 13,833 views
Plese tell me if these are right.A 15.0-mL sample of NaCl solution has a mass of 15.78g. After the NaCl is evaporated to
1. 3 answers
2. asked by Jason
3. 13,803 views
How many CO2 molecules would be formed from the reaction mixture that produces the greatest amount of products?2CH3OH(g)+3O2(g)-
1. 1 answer
2. asked by Jazmin
3. 13,603 views
A space station, in the form of a wheel 110 m in diameter, rotates to provide an "artificial gravity" of 3.00 m/s2 for persons
1. 1 answer
2. asked by laura
3. 13,594 views
did you hear about..... p.188 PRE-ALGEBRA WITH PIZZAZZ
1. 27 answers
2. asked by blargwork
3. 13,415 views
If 3.21 mol of a gas occupies 56.2L at 44C and a pressure of 793 torr, what volume will 5.29 mol of this gas occupy under the
1. 7 answers
2. asked by Anonymous
3. 13,229 views
1) If x = rcos theta and y = r sin theta, show that partial r / partial x = cos theta and find partial theta / partial x.2) If z
1. 1 answer
2. asked by Claire
3. 12,829 views
which of the following has the highest boiling point?a)C2Cl6 b)C2Br6 c)C2H6 d)C2F6 e)C2I6 i know its e, but why is that the
1. 3 answers
2. asked by RiChy
3. 12,574 views
A long rectangular sheet of metal, 12 inches wide, is to be made into a rain gutter by turning up two sides so that they are
1. 4 answers
2. asked by MEG
3. 12,470 views
A 0.075 kg ball in a kinetic sculpture moves at a constant speed along a motorized conveyor belt. The ball rises 1.32 m above
1. 10 answers
2. asked by Brian
3. 12,333 views
Radio waves travel at the speed of light which is 3.00 x 108 m/s. How many minutes does it take for a radio message to reach
1. 2 answers
2. asked by ashley
3. 12,253 views
An object weighing 325 N in air is immersed in water after being tied to a string connected to a balance. The scale now reads
1. 3 answers
2. asked by kate
3. 11,998 views
if sin(xy)=x, then dy/dx=
1. 2 answers
2. asked by Anonymous
3. 11,895 views
Nitrosyl bromide decomposes according to the following equation.2NOBr (g)(equilibrium arrow) 2NO (g) + Br2 (g) A sample of NOBr
1. 1 answer
2. asked by jessie
3. 11,884 views
3. A person exerts a force of 55 N on the end of a door 74 cm wide. What is the magnitude of the torque if the force is exerted
1. 1 answer
2. asked by Bobby
3. 11,872 views
A surveyor in an airplane observes that the angle of depression to two points on the opposite shores of a lake are 32 and 45
1. 10 answers
2. asked by Kitkat
3. 11,862 views
How much heat is required to raise the temperature of 250.0 g of mercury 52ºC? The specific heat of mercury is 0.14 J/(gºC).
1. 7 answers
2. asked by Meg Hat
3. 11,756 views
If the volume of a cube is increasing at 24 in^3/min and the surface area of the cube is increasing at 12 in^2/min, what is the
1. 3 answers
2. asked by Anna
3. 11,727 views
The speed of a nerve impulse in the human body is about 100 m/s. If you accidentally stub you toe in the dark, estimate the time
1. 9 answers
2. asked by jer
3. 11,700 views
Gasohol contains ethanol (C2H4OH)(l), which when burned reacts with oxygen to produce CO2(g) and H2O(g). How much heat is
1. 6 answers
2. asked by Keith
3. 11,668 views
Write the formula of the conjugate base for acid H3PO4 and what is the name of the baseWrite the formula of the conjugate base
1. 2 answers
2. asked by michelle
3. 11,657 views
An Alaskan rescue plane drops a package of emergency rations to a stranded party of explorers. The plane is traveling
1. 1 answer
2. asked by Catherine
3. 11,536 views
A 2.0 m wire segment carrying a current of 0.60 A oriented parallel to a uniform magnetic field of 0.50 T experiences a force of
1. 4 answers
2. asked by edward
3. 11,500 views
THe function h(t)=-16t^2+v0t+h0 describes the height in feet above the ground h(t) of an object thrown vertically from a height
1. 3 answers
2. asked by Joe
3. 11,484 views
Determine the value of k for which the function f(x)= 4x^2- 3x+2kx+1 has two zeros. check these values in the original equation?
1. 2 answers
2. asked by priya
3. 11,471 views
Resistors R1, R2, and R3 have resistances of 15.0 Ohms, 9.0 Ohms and 8.0 Ohms respectively. R1 and R2 are connected in series,
1. 3 answers
2. asked by Rony
3. 11,457 views
1. Which of the following matters would an auditor most likely consider to be a significant deficiency to be communicated to the
1. 17 answers
2. asked by Bob
3. 11,443 views
A bottle of wine contains 12.5% ethanol by volume. The density of ethanol (C2H5OH) is 0.789 g/cm3. Calculate the concentration
1. 4 answers
2. asked by Anonymous
3. 11,310 views
Determine the pH of each of the following solutions.0.21 M KCHO2 0.19 M CH3NH3I 0.19 M KI I'm not sure how i should set up the
1. 1 answer
2. asked by Kyle
3. 11,304 views
If a car rolls gently(vo=0) off a vertical cliff, how long does it take to reach 85km/h?
1. 2 answers
2. asked by john
3. 11,161 views
A frictionless pendulum of length 3 m swingswith an amplitude of 10◦. At its maximum displacement, the potential energy of the
1. 2 answers
2. asked by Anonymous
3. 11,134 views
A light spring of constant k = 170 N/m rests vertically on the bottom of a large beaker of water. A 5.70 kg block of wood
1. 6 answers
2. asked by julie
3. 11,113 views
Solid aluminum carbonate decomposes to form solid aluminum oxide and carbon dioxide gas.Is Al2(CO3)3 ==> Al2O3 + CO2 the right
1. 2 answers
2. asked by Jack
3. 11,005 views
You push down on a 3 N box for 10 Minutes. How much work was done?
1. 3 answers
2. asked by tyd
3. 10,930 views
Calculate Delta H for 4NH3 + 5O2 --> 4NO + 6H2Ousing: N2 +O2 --> 2NO DH= -180.5 kJ N2 + 3H2 --> 2NH3 DH= -91.8 kJ 2H2 + O2 -->
1. 2 answers
2. asked by Taylor
3. 10,830 views
Two positive numbers have a sum of 60. what is the maximum product of one number times the square of the second number?a) 3481
1. 1 answer
2. asked by Jenny
3. 10,802 views
Vector V1 is 6.4 units long and points along the negative x axis. Vector V2 is 8.9 units long and points at 60 degrees to the
1. 1 answer
2. asked by Matt
3. 10,656 views
At 20oC, a 2.32 M aqueous solution of Ammonium Chloride has a density of 1.0344g/ml. WHat is the molality of Ammonium Chloride
1. 2 answers
2. asked by Car
3. 10,635 views
175g of water was heated fro 15 to 88 degrees C. how many kilocalories were absorbed by the water?I got 94.5 kcal. Is this
1. 3 answers
2. asked by Jason
3. 10,609 views
What is the enthalpy for the following reaction?overall: C2H4+H2O--->C2H5OH is -1411kJ correct??
1. 6 answers
2. asked by Angel
3. 10,608 views
is breaking an egg a chemical or physical change?is cooking an egg a chemical or physical change?
1. 9 answers
2. asked by Elizabeth
3. 10,512 views
A box is given a push so that it slides across the floor. How far will it go, given that the coefficient of kinetic friction is
1. 1 answer
2. asked by John
3. 10,496 views
Find the values of the 30th and 90th percentiles of the data18, 9, 7, 5, 11, 7, 17, 20, 19, 2, 17, 12, 5, 1, 13, 12, 11, 15, 16,
1. 7 answers
2. asked by Skye
3. 10,482 views
how many ways can you make 75 cents with quarters, dimes, and nickels
1. 10 answers
2. asked by crystal
3. 10,476 views
AgNO3+NaOH-->AgOH+NaNO3give me molecular , total ionic and net ionic???"
1. 1 answer
2. asked by julia
3. 10,457 views
Which sentences are correct?1) Are you able to assist me on this matter? I would appreciate your assistance on this matter. OR
1. 2 answers
2. asked by annie
3. 10,401 views
The concentration of a benzene solution prepared by mixing 12.0 g C6H6 with 38.0 g CCl4 is__________ molal.
1. 4 answers
2. asked by jessie
3. 10,251 views
Of the following transitions in the Bohr hydrogen atom, the ____ transition results in the emission of the highest-energy
1. 2 answers
2. asked by Jessica
3. 10,216 views
Workers have loaded a delivery truck in such a way that its center of gravity is only slightly forward of the rear axle. .63m in
1. 2 answers
2. asked by shai
3. 10,209 views
The difference between the two acute angles of a right- angled triangle is 2 π/5 radians. Express the angles in degrees.I’ve
1. 10 answers
2. asked by Akash
3. 10,209 views
mgh=1/2mv^2, solve for the variable v
1. 7 answers
2. asked by Lisa
3. 10,171 views
What is the Advantage of Buying a Magnetic Bullein Board
1. 14 answers
2. asked by Zachary
3. 10,136 views
A dentist's drill starts from rest. After 3.20 s of constant angular acceleration it turns at a rate of 2.7 104 rev/min.(a) Find
1. 5 answers
2. asked by Sam
3. 10,094 views
A chunk of silver has a heat capacity of 42.8 J for 1ºC and a mass of 181g. Calculate the specific heat of silver.
1. 7 answers
2. asked by Meg Hat
3. 10,092 views
a pudding recipe for 50 people calls for 4 cups of sugar. each bag of sugar contains 6 cups. how many bags of sugar will be
1. 4 answers
2. asked by Anonymous
3. 10,043 views
4NH3+5O2 = 4NO + 6 H20If a container were to have 10 molecules of O2 and 10 molecules of NH3, initially, how many total
1. 3 answers
2. asked by Margaret
3. 10,021 views
Tetraphosphorus trisulphide (P4S3) is used in the match heads of some matches. It is produced in the reaction 8P4+3S8 --> 8P4S3.
1. 4 answers
2. asked by Ana
3. 9,970 views
Which of the following represents a pair of isotopes?Atomic Number Mass Number a. I 7 16 II 8 16 b. I 17 34 II 18 36 c. I 17 35
1. 3 answers
2. asked by Husy
3. 9,942 views
An IRS auditor randomly selects 3 tax returns from 58 returns of which 8 contain errors. What is the probability that she
1. 4 answers
2. asked by Kerri
3. 9,932 views
a 2000 kg car rounds a circular turn of radius 20.0 meters. if the road is flat and the coefficient of static friction between
1. 2 answers
2. asked by mallory!!!!!!!!!!!!
3. 9,873 views
A KCl solution containing 42g of KCl per 100.0 g of water is cooled from 60 C to 0 C . What will happen during cooling?
1. 2 answers
2. asked by Johannie
3. 9,850 views

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