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2012
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Questions Asked on October 21, 2012

The force shown in the force vs. time diagram in the figure below acts on a 1.10 kg object. Find:(a) the impulse of the force
1. 0 answers
2. asked by Anonymous
3. 873 views
Meg's pension plan is an annuity with a guaranteed return of 3% per year (compounded quarterly). She would like to retire with a
1. 1 answer
2. asked by Roseanne
3. 632 views
In a card game using a normal deck of playing cards containing 52 cards, 13 cards are dealt to a player.a) how many different
1. 0 answers
2. asked by Carol
3. 538 views
Solve:3 log 10^x = 4.2 the 10 is underneath the log I got a weird number in scientific notation. 2.511... X 10^9
1. 1 answer
2. asked by Sam
3. 1,322 views
How long would it take a 20Kw heater to warm up 1000 litres of water from 15 degrees to 55 degrees in hours? specific heat of
1. 1 answer
2. asked by Dave
3. 514 views
if rock A is dropped from a cliff and rock B is thrown downward off the cliff, which of the two has a greater velocity?
1. 1 answer
2. asked by Barbara
3. 1,088 views
How is this equation balancedAl2(OH3 S3 (s) +3H2O (l)--->
1. 1 answer
2. asked by What?
3. 323 views
How do you solve:3x plus 2y = $7.25
1. 1 answer
2. asked by Linda
3. 284 views
9.70 grams of nitrogen gas are allowed to react with 5.44 grams of oxygen gas.What is the maximum amount of nitrogen monoxide
1. 1 answer
2. asked by kim
3. 622 views
If f and g are two functions for which f' = g and g' = f for all x, then prove thatf^2 - g^2 must be a constant.
1. 3 answers
2. asked by asdasd
3. 471 views
PLEASE HELP!!!!!!!machines A &B. Model A machines each cost $200 to make at a profit of $25 each. Model B cost $3oo to make at a
1. 2 answers
2. asked by garnel
3. 549 views
What effect would a sweaty person have on the pool chemistry? Would the reaction tend to be forced to the right or to the left?
1. 1 answer
2. asked by Corneil
3. 340 views
A 28 kg canoe has a 24 kg passenger. The passenger is 2.0 m from the left end of the canoe and the center of mass of the canoe
1. 0 answers
2. asked by Ezek
3. 546 views
You have just isolated a new radioactive element. If you can determine its half-life, you will win the Nobel Prize in physics.
1. 1 answer
2. asked by Roseanne
3. 1,256 views
A 14.0 g sample of Krypton has a temperature of 25C at 625mm Hg. What is the volume, in Milliliters, of the krypton?
1. 1 answer
2. asked by Will
3. 579 views
Using the molar volume (STP) or the ideal gas law equation, determine the molar mass,g/mole, of each of the following.A: 11.2g
1. 1 answer
2. asked by Will
3. 798 views
a 0.2kg rubber ball is dropped from the window of a building. It strikes the sidewalk below at 30 m/s and rebounds up at 25 m/s.
1. 1 answer
2. asked by Jazmin
3. 1,872 views
joe weighs 650N. how much work does he do if he climbs 4m up a a rope?
1. 1 answer
2. asked by Brenna
3. 649 views
Suppose a shipment of 500 machine parts contains 62 defective and 438 non-defective machine parts. From the shipment you take a
1. 0 answers
2. asked by laura
3. 870 views
A footballl is thrown directly toward a receiver with initial speed of 18.0 m/s At an angle of 35.0 degrees above the
1. 1 answer
2. asked by Mollie
3. 4,242 views
The time needed for a water wave to change from the equilibrium level to the crest is 0.4185 s.What fraction of a wavelength is
1. 2 answers
2. asked by Aj
3. 991 views
A footballl is thrown directly toward a receiver with initial speed of 18.0 m/s At an angle of 35.0 degrees above the
1. 2 answers
2. asked by Mollie
3. 597 views
When a particular wire is vibrating with a frequency of 5.3 Hz, a transverse wave of wavelength 69.3 cm is produced.Determine
1. 0 answers
2. asked by Aj
3. 481 views
A harmonic wave is traveling along a rope. It is observed that the oscillator that gener- ates the wave completes 44.9 in 30.4
1. 0 answers
2. asked by Aj
3. 440 views
A harmonic wave in a wire has amplitude A = 7.6 mm, wavelength λ = 0.679 m and frequency f = 543 Hz.What is the propagation
1. 0 answers
2. asked by Aj
3. 554 views
A baseball coach shouts loudly at an umpire standing 3.6 meters away.If the sound power produced by the coach is 2.2×10−3 W,
1. 0 answers
2. asked by Aj
3. 917 views
An experiment requires sound intensity 0.942 W/m2 at the distance of 2.7 m in any direction from a speaker.What total sound
1. 0 answers
2. asked by Aj
3. 387 views
A skyrocket explodes 77 m above the ground. Three observers are spaced 106 m apart, with observer A directly under the point of
1. 0 answers
2. asked by Aj
3. 728 views
I am wondering about a conceptual question:In an acid/base reaction is there a way to know for sure when an H2O is going to stay
1. 1 answer
2. asked by UCI STUDENT
3. 455 views
Simplify sin165.
1. 1 answer
2. asked by Mfanvela
3. 329 views
4(3) exponent is 2
1. 1 answer
2. asked by Anonymous
3. 254 views
Can you check my answers please?1.In what hemispheres is Africa located? Northern, Southern, Eastern, and Western 2. What is the
1. 1 answer
2. asked by Reed
3. 756 views
Two moles of Mg and five moles of O2 are placed in a reaction vessel, and then the Mg is ignited to produce Mg (F.W.= 40.31
1. 2 answers
2. asked by Shelby
3. 1,243 views
whatis the unit price of 40 ounces for $12
1. 1 answer
2. asked by kyla
3. 1,581 views
What is the gravitational potential energy of a 5kg object resting 3m above the ground?
1. 1 answer
2. asked by Drake
3. 1,020 views
There is much debate in our country about activist judges and strict constructionist judges. Do you believe that judges should
1. 1 answer
2. asked by Dora
3. 502 views
38-a/11=34
1. 1 answer
2. asked by jakobie
3. 213 views
A ski starts from rest and slides down 22 degree incline 75 m long.If the coefficient of friction is .090 what is the ski's
1. 0 answers
2. asked by SP
3. 1,146 views
there are 10 candidates to fill 3 spots. how many teams can be formed
1. 1 answer
2. asked by Anonymous
3. 267 views
#1For what positive numbers will the cube of a number exceed four times its square? #2 For what positive numbers will the cube
1. 0 answers
2. asked by Rebekah
3. 572 views
It was two by the village clock,When he came to the bridge in Concord town. He heard the bleating of the flock, And the twitter
1. 3 answers
2. asked by 303
3. 517 views
A certain 0.92 kg object will reach terminal velocity after 0.75 seconds. What is the speed of its terminal velocity and what is
1. 0 answers
2. asked by Lauren
3. 1,109 views
The text for this class is strange to read and about clear as mud. The question that I am needing help with is this one:
1. 3 answers
2. asked by Marie
3. 461 views
1. Two concentric conducting spherical shells have radii of 0.145 m. and 0.215 m. The inner sphere bears a charge of -3.00E-08
1. 2 answers
2. asked by andrew
3. 1,281 views
A ball of moist clay falls 10.4 m to the ground. It is in contact with the ground for 20.5 ms before stopping.(a) What is the
1. 0 answers
2. asked by Allie
3. 402 views
To determine the location of his center of mass, a physics student lies on a lightweight plank supported by two scales L = 2.44
1. 0 answers
2. asked by Emily
3. 572 views
Hey guys stumped on this one \HELP PLEAZE A.S.A.P.minimize p= 15x +18y subject to x+2y<=20 3x + 2y>= 36 x>=0 y>=0
1. 0 answers
2. asked by garnel
3. 956 views
why should federal courts be able to declare an act of Congress unconstitutional
1. 1 answer
2. asked by Dora
3. 367 views
A man claims he can safely hold on to a 14.20 kg child in a head-on collision with a relative speed of 132. mi/h lasting for
1. 0 answers
2. asked by Anonymous
3. 925 views
how do the names of covalent compounds differ from the names of ionic compounds?
1. 1 answer
2. asked by Boo Boo
3. 808 views
Radius of earth 3,959 milesSpace shuttle orbits 200 miles above earths Surface Space shuttle completes 220 degrees of a
1. 0 answers
2. asked by Chris
3. 581 views
There are various levels and types of judicial courts. In the case Sitz v. Michigan Department of Police, two levels of
1. 1 answer
2. asked by Dora
3. 472 views
A 2.42kg block starts from rest at the top of a 22.9◦ incline and accelerates uniformly down the incline,moving 2.41m in
1. 2 answers
2. asked by Alex
3. 486 views
How is this equation balancedAl2(OH)3 S3 (s) + 3H2O (l) --->
1. 1 answer
2. asked by What?
3. 433 views
why is the bond length an average rather than a fixed number ?
1. 1 answer
2. asked by eddie
3. 629 views
Mass (before reaction): test tube + HCl(aq) + stir bar + capsule 26.600 gMass (after reaction): test tube + HCl(aq) + stir bar +
1. 2 answers
2. asked by Karina
3. 3,017 views
A block of mass 0.86 kg is suspended by a string which is wrapped so that it is at a radius of 0.061 m from the center of a
1. 0 answers
2. asked by Emily
3. 684 views
" displacement is a change in position. what is the equation for displacement."i forgot the equation please help
1. 0 answers
2. asked by Anonymous
3. 311 views
I am studying for a physics exam and this is the pretest. There are some that I don't understand. If someone could help me get
1. 0 answers
2. asked by Karrine
3. 483 views
How many ounces of a 19% copper alloy metal must be added to 42% ounces of a 40% copper alloy metal to produce a metal which is
1. 0 answers
2. asked by sh
3. 536 views
Nurse erika needs to prepare 12 liters of a 10% saline solution. The stockroom only has 7 % and 15% saline solutions. How much
1. 1 answer
2. asked by sh
3. 798 views
Can you check my answers please?1. Which continents do not cross the equator? North America, Europe, Australia, and Antarctica
1. 1 answer
2. asked by Reed
3. 803 views
During a baseball game, a batter hits a high pop-up. If the ball remains in the air for 4.11 s, how high does it rise?
1. 2 answers
2. asked by Kayla
3. 1,029 views
A bullet is fired straight up from a gun with a muzzle velocity of 312 m/s. Neglecting air resistance, what will be its
1. 1 answer
2. asked by Kayla
3. 550 views
4(3) exponent is 2
1. 0 answers
2. asked by Anonymous
3. 309 views
Brown Inc. has just paid its monthly bill,what balance sheet and income statement accounts will this transaction affect?
1. 0 answers
2. asked by GERRY
3. 365 views
We had to do a design and write something on it. I want mine to be perfect but have a couple of punctuation questions.It is a
1. 3 answers
2. asked by B6
3. 527 views
The two masses (m1 = 4.96 kg and m2 = 2.90 kg) in the Atwood's machine shown in the figure below are released from rest, with m1
1. 0 answers
2. asked by Emily
3. 501 views
I need help showing work. I did it in my head and now missing a huge part of how I got it.110=2/3*8 my answer is 165 but they
1. 6 answers
2. asked by lucy
3. 423 views
determine the value of k for which the fuction f(x)=4x^2-3x+2kx+1 has 2 zeros.
1. 1 answer
2. asked by Neha
3. 412 views
Input. Output12. 10 16 32. 62. 35 70. 39 86 What is the rule I am in 5 th grade and have no clue
1. 1 answer
2. asked by Lily
3. 797 views
#1For what positive numbers will the cube of a number exceed four times its square? #2 For what positive numbers will the cube
1. 1 answer
2. asked by Rebekah
3. 2,731 views
in the recent presidential election, romney's comment "binders full of woman" really offended people. why were people so
1. 1 answer
2. asked by jake
3. 432 views
5/2+x=6
1. 1 answer
2. asked by Lordellro
3. 190 views
Joey has a toy car that is a 1:64 scale model of an actual car. (In other words, the length of the actual car is 64 times as
1. 1 answer
2. asked by Elizabeth Barnes
3. 937 views
What volume of 0.596M K3PO4 is required toreact with 29 mL of 0.864 M MgCl2 according to the equation 2K3PO4 + 3MgCl2 ->
1. 1 answer
2. asked by Tara
3. 447 views
Imagine that all the people on Earth could stand side by side together. How much area would be needed? Would all the people on
1. 0 answers
2. asked by Elizabeth Barnes
3. 531 views
A certain weak base has a Kb of 9.00 × 10-7. What concentration of this base will produce a pH of 10.34?
1. 1 answer
2. asked by Kelly
3. 762 views
MegaMart collects a sales tax equal to 1/16 of the retail price of each purchase and sends this money to the state government.a.
1. 9 answers
2. asked by Cassidy
3. 2,172 views
A classroom has a floor area of 600 square feet. What is the floor area of the classroom in square meters? describe three
1. 0 answers
2. asked by Chelsea
3. 1,374 views
1. x-9/5=1/52. 1/2+x=2/3 3. 1/2+x=2/3 4. x/4=3/8 5. 3/2+x=2
1. 3 answers
2. asked by Camilia
3. 259 views
A person wants to push a lamp (mass 7.2 kg) across the floor, for which the coefficient of friction is 0.23. Calculate the
1. 0 answers
2. asked by Olivia
3. 863 views
A object-spring system undergoes simple harmonic motion with an amplitude of A. Does the total energy change if the mass is
1. 1 answer
2. asked by roro
3. 1,186 views
A hungry 675 -N bear walks out on a beam in an attempt to retrieve some "goodies" hanging at the end. The beam is uniform,
1. 2 answers
2. asked by Emily
3. 640 views
A 81.0 kg soccer player jumps vertically upwards and heads the 0.45 kg ball as it is descending vertically with a speed of 28.0
1. 0 answers
2. asked by Anonymous
3. 426 views
what are the two formal fallacies?My answer- fallacy of denying the antecedent and fallacy of affirming the consequent. I don't
1. 1 answer
2. asked by m
3. 538 views
Hydrogen react with .....Or Hydrogen react to...... Do I use with or to?
1. 1 answer
2. asked by Anonymous
3. 264 views
Radius of earth 3,959 milesSpace shuttle orbits 200 miles above earths Surface Space shuttle completes 220 degrees of a
1. 1 answer
2. asked by Chris
3. 689 views
Laird Company sells coffee makers used in business offices. Its beginning inventory of coffee makers was 200 units at $41 per
1. 0 answers
2. asked by Meg
3. 673 views
classify the triangle as a scalene,isoceles or equilateral and acute right or obtuse
1. 1 answer
2. asked by mom
3. 617 views
a skier moving at 15 m/s down a 20 degree slope encounters a region of wet snow of coefficient of friction is 0.8. how far down
1. 2 answers
2. asked by Jazmin
3. 863 views
A 3.8 kg block initially at rest is pulled to theright along a horizontal, frictionless surface by a constant, horizontal force
1. 0 answers
2. asked by Najah
3. 533 views
Two resistors 10 Ω and 5 Ω are connected in parallel across a 15 V battery. What is the potential difference across the 10 Ω
1. 0 answers
2. asked by Herp
3. 1,009 views
An electric kettle operates at 110V. What is the resistance of the kettle if the power is 1.5kW?8.1 Ω 1.4 Ω 81 Ω 14 Ω Both A
1. 1 answer
2. asked by Herp
3. 646 views
MegaMart collects a sales tax equal to 1/16 of the retail price of each purchase and sends this money tp the state government.a.
1. 7 answers
2. asked by Cassidy
3. 753 views
I have a drawing with fractions. What does this mean a scale 1:2. I have to draw that picture a scale 1:2. What does that mean?"
1. 1 answer
2. asked by chan
3. 372 views
A girl coasts down a hill on a sled, reaching level ground at the bottom with a speed of 6.7 m/s. The coeﬃcient of kinetic
1. 1 answer
2. asked by George
3. 1,030 views
6.In which quadrant is the point (x, y) located if x is negative and y is positive? (1 point) II III IV I At the halftime show,
1. 4 answers
2. asked by Delilah
3. 769 views
a tugboat goes 120 miles up streem in 15 hours it takes 10 hours to come backthe speed of the tugboat is and the speed of the
1. 0 answers
2. asked by Anonymous
3. 315 views
Calculate the theoretical yield in moles of Fe(C5H7O2)3 for this experiment. Record this number on your data sheet.Calculate the
1. 1 answer
2. asked by Anonymous
3. 1,876 views

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