Archives
2010
November

Questions Asked on November 22, 2010

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. 21,875 views
The blades in a blender rotate at a rate of 6500 rpm. When the motor is turned off during operation, the blades slow to rest in
1. 3 answers
2. asked by Nick
3. 8,151 views
A pendulum makes 120 complete oscillations in 3.00 minutes at a location where g= 9.98m/s^2Find the period of the period Find
1. 2 answers
2. asked by Reema
3. 5,766 views
What is the pH of an aqueous solution at 25.0 °C that contains 3.98 × 10-9 M hydroxide ion?i posted this before and i tried
1. 1 answer
2. asked by jessie
3. 5,498 views
A bathysphere used for deep sea exploration has a radius of 1.50 m and a mass of 1.20 × 104 kg. In order to dive, the sphere
1. 1 answer
2. asked by Sydney
3. 4,901 views
A 0.446 g- sample of an unknown monoprotic acid was titrated with 0.105 M KOH. the molar mass is 120 g/mol What is the pKa
1. 5 answers
2. asked by james
3. 4,283 views
How many arrangements of five letters from the word 'certain' contain the letter 't'? Explain your reasoning.
1. 1 answer
2. asked by Celina
3. 3,802 views
1. How much acceleration does a 747 jumbo jet of mass 31600 kg experience in takeoff when the thrust for each of four engines is
1. 3 answers
2. asked by confused
3. 3,511 views
In traveling across flat land, you notice a mountain in front of you. Its angle of elevation to the peak is 3.5 degrees. After
1. 3 answers
2. asked by Ashley
3. 3,436 views
A catapult with a spring constant of 1.0 104 newtons per meter is required to launch an airplane from the deck of an aircraft
1. 2 answers
2. asked by ...
3. 3,373 views
Which of the following is considered an advantage of home ownership?A. You are responsible for all repairs and maintenance. B.
1. 2 answers
2. asked by vanessa
3. 3,367 views
How many grams of NH3 form when 27.5L of H2 (measured at STP)react with N2 to form NH3 according to:N2(g) + 3H2 (g) = 2NH3 (g)
1. 1 answer
2. asked by Susan
3. 2,850 views
Gisela lives in a subdivision where the streets are laid out in a grid pattern. Her school is eight blocks south and six blocks
1. 2 answers
2. asked by Celina
3. 2,822 views
A laser beam is directed at the Moon, 380,000 km from Earth. The beam diverges at an angle of 4.6×10−5 rad.1. What diameter
1. 2 answers
2. asked by Nick
3. 2,386 views
An alpha particle collides with an oxygen nucleus, initially at rest. The alpha particle is scattered at an angle of 60.9°
1. 2 answers
2. asked by Please Help!
3. 2,300 views
The Earth orbits the Sun once every 365 days. The distance between the Earth and the Sun is 1.5 x 1011 m. What is the average
1. 2 answers
2. asked by Anonymous
3. 2,186 views
At a certain temperature, the pH of a neutral solution is 7.77. What is the value of Kw at that temperature?
1. 2 answers
2. asked by Pete
3. 2,178 views
Paraguay is to Bolivia as ? is to Honduras. My answer is Nicaragua. Is that correct? I say it is Nicaragua because Bolivia is
1. 3 answers
2. asked by Reed
3. 2,125 views
Ca(HCO3)2(s) decomposes at elevated temperatures according to the stoichiometric equation Ca(HCO3)2(s)-> CaCO3(s) + H2O(g) +
1. 1 answer
2. asked by Jill
3. 2,024 views
A recipe for spagetti sauce requires four 16-ounce bottles of ketchup to make 2 gallons of sauce. How many bottles of ketchup
1. 3 answers
2. asked by Anonymous
3. 1,905 views
A research group conducted an extensive survey of 3078 wage and salaried workers on issues ranging from relationships with their
1. 2 answers
2. asked by Anonymous
3. 1,889 views
Compute the boiling point of this Solution:25.5g C7H11NO7S (4-nitro-2-toluenesulfonoic acid dihydrate) in 1.00*10^2g H2O
1. 2 answers
2. asked by Jose Reyes
3. 1,799 views
1. Why does the inequality sign change when both sides of the inequality are multiplied or divided by a negative number? Does
1. 1 answer
2. asked by TRACY
3. 1,793 views
A man is pulling on a rope with a force of 53 Ndirected at an angle of 70◦ to the horizontal. What is the x-component of this
1. 4 answers
2. asked by jane
3. 1,728 views
A cylinder with a valve at the bottom is filled with an ideal gas. The valve is now opened and some of the gas escapes slowly.
1. 1 answer
2. asked by Thomas Samuel Adams
3. 1,723 views
Which of the following would be an example of an emotional appeal that is part of a persuasive message? (Points: 5)"All of the
1. 5 answers
2. asked by lisa
3. 1,693 views
What mass of aluminum metal can be produced per hour in the electrolysis of a molten aluminum salt by a current of 24 amps?All i
1. 1 answer
2. asked by moe
3. 1,683 views
A volume of 2.0 L of He at 46 degrees celsius and 1.2 atm of pressure was added to a vessel that contained 4.5 L of N2 at STP.
1. 1 answer
2. asked by garm
3. 1,656 views
If 75 g of ice at 0.0 C were added to 1.5 L of water at 75 C, what would be the final temperature of the mixture?
1. 1 answer
2. asked by Vanessa
3. 1,610 views
How many ten-digit telephone numbers are possible if the first three digits must be different? The answer is 72,000,000,000....
1. 2 answers
2. asked by Celina
3. 1,587 views
How would you prepare 150.0 mL of a 0.200 M aqueous solution of potassium chloride from a 0.500 M aqueous solution of potassium
1. 1 answer
2. asked by Kiesha
3. 1,567 views
Compute the boiling point of this solution:1.00*10^2g C10H8O6S2 (1,5-naphthalenedisulfonic acid) in 1.00*10^2g H2O (nonionizing
1. 3 answers
2. asked by Jose Reyes
3. 1,544 views
Determine if the equation y = 2^x represents exponential growth or decayI thought at first it was growth but now I think it
1. 3 answers
2. asked by Jason
3. 1,532 views
A regular polygon has an exterior angel measure of (x+3) Degrees and an interior angle measure of (13x-33) degreesFind the
1. 1 answer
2. asked by Monica
3. 1,529 views
How long will it take for an investment to double in value if it earns 9.5% compounded continuously?
1. 1 answer
2. asked by Sarah
3. 1,503 views
A 1.3- block of ice is initially at a temperature of -3.5. If 6.6×105 of heat are added to the ice, what is the final
1. 1 answer
2. asked by katelyn
3. 1,501 views
Using Systems of Equations.Please help!!! I'm not sure what steps to do, to work this problem. #7) Five hundred tickets were
1. 3 answers
2. asked by Lee
3. 1,479 views
Object A has mass mA = 9 kg and initial momentum A,i = < 19, -7, 0 > kg · m/s, just before it strikes object B, which has mass
1. 0 answers
2. asked by What does this even mean!?
3. 1,473 views
Compute the freezing point of this Solution:25.5g C7H11NO7S (4-nitro-2-toluenesulfonoic acid dihydrate) in 1.00*10^2g H2O
1. 4 answers
2. asked by Jose Reyes
3. 1,445 views
1)A car misses a turn and sinks into a shallow lake to a depth of 11.4 m. If the area of the car door is 0.56 m2, what is the
1. 2 answers
2. asked by Jamine
3. 1,417 views
You observe a plane approaching overhead and assume that its speed is 700 miles per hour. The angle of elevation of the plane is
1. 1 answer
2. asked by Dave
3. 1,382 views
Let p1 represent the population proportion of U.S. Senate and Congress (House of Representatives) democrats who are in favor of
1. 1 answer
2. asked by Ben
3. 1,379 views
Solvelog10(8 x) − log10(1 + √x) = 2 for x.
1. 3 answers
2. asked by Michael Weston
3. 1,336 views
If 3 is a zero of the polynomial f(x), then which of the following is NOT necessarily true?A. (x – 3) is a factor of the
1. 1 answer
2. asked by Math is hard!
3. 1,313 views
A 0.50 kg ball that is tied to the end of a 1.1 m light cord is revolved in a horizontal plane with the cord making a 30°
1. 0 answers
2. asked by tj
3. 1,306 views
A 66.0 kg man is ice-skating due north with a velocity of 5.70 m/s when he collides with a 36.0 kg child. The man and child stay
1. 2 answers
2. asked by Please Help!
3. 1,283 views
Steri-strips cost $4.95 per box, there are 100 per box. If an orthopedic surgical group uses 200 Steri-strips a month, how much
1. 1 answer
2. asked by Lisa
3. 1,262 views
how much work is done on a 100kg crate that is hoisted 4 m in a time of 4 seconds
1. 3 answers
2. asked by crystal
3. 1,259 views
A 1.0 m cubed object floats in fresh water with 20% of it above the waterline. What does the object weigh out of the water?
1. 2 answers
2. asked by Jack
3. 1,227 views
Consider a bowl containing 36 different slips of paper. Ten of the slips of paper contain one of the set of digits 0 through 9
1. 1 answer
2. asked by m
3. 1,180 views
Calculate the volume of the ramp in Figure 17 in three ways by integrating the area of the cross sections:(a) Perpendicular to
1. 1 answer
2. asked by Jack
3. 1,179 views
Robert Mason's account of $98.50 has been delinquent for three months. According to the office procedures manual, after 90 days
1. 1 answer
2. asked by lisa
3. 1,170 views
A perpendicular bisector is a segment which is perpendicular to another segment, and specifically goes through the midpoint of
1. 1 answer
2. asked by Kay
3. 1,161 views
Consider the trash bag problem. Suppose that an independent laboratory has tested trash bags and has found that no 30-gallon
1. 0 answers
2. asked by Steve
3. 1,149 views
Jane uses a 60 minute tape to record songs on, if each tape is 40 seconds long. How many songs can she tape on the 60 minute
1. 1 answer
2. asked by carolyn
3. 1,140 views
Use synthetic division to divide the polynomial 2x3 – 45x + 28 by x + 5, and write the quotient polynomial and the remainder.
1. 1 answer
2. asked by Math Loser :(
3. 1,131 views
Calculate the molecular mass of the nonionic solutes.8.02 grams of solute in 861 grams of water lower the freezing point to
1. 2 answers
2. asked by Jose Reyes
3. 1,126 views
Which one of the following statements about a thermodynamic engine is not true, i.e., which one of the statements is false?1)The
1. 0 answers
2. asked by Tracy
3. 1,125 views
HelloI have an assignment to do about the force table. I'm not sure about my answers, hope someone could check it for me if I
1. 2 answers
2. asked by Aransaja
3. 1,103 views
Why isnt a ladder a good model for an atom?
1. 0 answers
2. asked by Kayka
3. 1,102 views
A wooden artifact from an ancient tomb contains 70% of the carbon-14 that is present in living trees. How long ago was the
1. 2 answers
2. asked by Tarah
3. 1,097 views
Hydrogen peroxide can be prepared by the reaction of barium peroxide with sulfuric acid according toBaO2(s)+ H2SO4(aq)--->
1. 1 answer
2. asked by Jason
3. 1,093 views
If f(x)=sinxcosx, what are the critical points? on the interval (o, 2pi)
1. 1 answer
2. asked by thomas richards
3. 1,093 views
find the gradient of the curve y=2x^3-5x^2-x+1 at the pt (2,-5). find the x-coordinate of another pt on the curve where the
1. 1 answer
2. asked by yani
3. 1,072 views
Calculate the volume of the ramp in Figure 17 in three ways by integrating the area of the cross sections:(a) Perpendicular to
1. 2 answers
2. asked by Jack
3. 1,060 views
A mineral can scratch any mineral harder than itself. True or False? I said it is false. My Mom told me I am wrong, it is true!!
1. 3 answers
2. asked by Reed
3. 1,057 views
Write a letter to the supermarket manager explaining what has happened. Tell the manager how you feel about the error and ask
1. 1 answer
2. asked by sara
3. 1,055 views
Bob was given and exercise prescription for 3-5 METS for his home exercise program. He is currently walking, and at the fitness
1. 1 answer
2. asked by kaden
3. 1,050 views
what did thomas jefferson and benedict arnold have to do with the Revolutionary War?
1. 3 answers
2. asked by Lyra
3. 1,045 views
calculate the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition fromn=5 to n=1 how do I do
1. 4 answers
2. asked by Lisa
3. 1,043 views
Suppose that high-speed stroboscopic photographs show that the 200-g head of a golf club travels at 51 m/s just before it
1. 1 answer
2. asked by help!
3. 1,035 views
The minute hand on a watch is 8mm long and the hour hand is 4mm long. How fast is the distance between the tips of the hands
1. 1 answer
2. asked by Anonymous
3. 1,028 views
In a crash test, a truck with mass 2600 kg traveling at 24 m/s smashes head-on into a concrete wall without rebounding. The
1. 1 answer
2. asked by Confused again
3. 1,016 views
A block of mass m = 2.60 kg slides down a 30.0° incline which is 3.60 m high. At the bottom, it strikes a block of mass M =
1. 0 answers
2. asked by Joe
3. 1,003 views
A bicycle with tires .064 m in diameter travels 8.1 km.1. How many revolutions do the wheels make?
1. 1 answer
2. asked by Nick
3. 1,001 views
two vectors are defined as a=2i+xj and b=i-4j. find value of x ifa) the vectors are parallel b) the vectors are perpendicular
1. 1 answer
2. asked by karla
3. 994 views
Joe has a mass of 50 kg and Sally has a mass of 30 kg. They sit in class with a separation of 0.5 meters. Find the gravitational
1. 1 answer
2. asked by Dominique
3. 992 views
Two ways in which practical statistics outweighs statistical significance?
1. 0 answers
2. asked by Chrissy
3. 982 views
Sprinting near the end of a race, a runner with a mass of 70 kg accelerates from a speed of 6 m/s to a speed of 9 m/s in 2 s.(a)
1. 1 answer
2. asked by confused
3. 981 views
A die is designed to punch holes of radii 2.17 x 10-2 m in a metal sheet that is 5.53 x 10-3 m thick. To punch through the
1. 0 answers
2. asked by Mike
3. 975 views
What are the 3 worst laws that were passed by the parliament (13 colonies)?????
1. 3 answers
2. asked by Sumaiya
3. 974 views
how much power is required to lift the crate
1. 3 answers
2. asked by crystal
3. 974 views
Express as a single logarithm and simplify: log x – log (8x) + 2 log 4
1. 2 answers
2. asked by Chris
3. 973 views
What benefits do welfare state offer their citizen?
1. 1 answer
2. asked by tony
3. 971 views
QuadPlex Cinema is the only movie theater in Idaho Falls. The nearest rival movie theater, the Cedar Bluff Twin, is 35 miles
1. 1 answer
2. asked by ss
3. 970 views
One synthetic preparation of aniline involves reducing nitrobenzene with iron and HCL, and then steam distilling the resultant
1. 0 answers
2. asked by Adria
3. 962 views
A bullet of mass 5.15 g is fired horizontally into a 2.74 kg wooden block at rest on a horizontal surface. The coefficient of
1. 2 answers
2. asked by confused
3. 960 views
How many different seven-digit telephone numbers are possible if no number may begin with 0?.....the answer is 9,000,000 but I'm
1. 2 answers
2. asked by Celina
3. 958 views
A gardener has 60 feet of fencing with which to enclose a garden adjacent to a long existing wall. The gardener will use the
1. 1 answer
2. asked by Rob
3. 956 views
A cylinder with a valve at the bottom is filled with an ideal gas. The valve is now opened and some of the gas escapes slowly.
1. 0 answers
2. asked by Carl
3. 955 views
A gold prospector finds a solid rock that is composed solely of quartz and gold. The mass and volume of the rock are,
1. 1 answer
2. asked by Mike
3. 924 views
Lower case letters that come after the capital letter(s), e.g., KJk, labeling a rock unit represent the rock unit's _
1. 2 answers
2. asked by Jessenia
3. 922 views
The force F = (3.2, -7.1) N acts on a mass of 1.15 kg. At time t = 0 s, the mass has a velocity v0 = (-0.46, 0.36) m/s.What is
1. 1 answer
2. asked by help
3. 919 views
a 15g bullet is fired horizontally into a block of wood with mass 2.5 kg and embedded in the block, Initially the block of wood
1. 1 answer
2. asked by Jay
3. 918 views
what are thefactors of 80(5th grade math)?
1. 2 answers
2. asked by helen
3. 904 views
Teeth and bones are composed, to a first approximation, of calcium phosphate, Ca3(PO4)2(s). The Ksp for this salt is 1.3*10^-32
1. 5 answers
2. asked by Amy
3. 894 views
Methane is formed in landfills by the action of certain bacteria on buried organic matter. If a sample of methane collected from
1. 1 answer
2. asked by Marisa
3. 885 views
An anvil hanging vertically from a long rope in a barn is pulled to the side and raised like a pendulum 1.6 m above its
1. 1 answer
2. asked by Scooby
3. 884 views
Suppose a spacecraft of rest mass 34000 kg is accelerated to 0.206c. How much kinetic energy would it have?If you used the
1. 1 answer
2. asked by VJC
3. 884 views
3.13g if CuNO3 is dissolved in water to make a 0.270 M solution. What is the volume of the solution?
1. 1 answer
2. asked by Jason
3. 879 views

Back to November 2010

Ask a New Question

Archives
Contact Us
Newest
Privacy Policy
Terms of Use
© 2025