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2012
October

Questions Asked on October 12, 2012

To what temperature must a gas sample initally at 13 degrees be raised in order for the avarage energy of its molecules to
1. 1 answer
2. asked by Anonymous
3. 943 views
suppose y=√(2x+1), where x and y are functions of t.a)if dx/dt=3, find dy/dt when x=4 b)if dy/dt=5, find dx/dt when x=12
1. 1 answer
2. asked by Chelle
3. 1,775 views
Write a two-column proof.Given: 7y = 8x – 14; y = 6 Prove: x = 7
1. 1 answer
2. asked by Joel
3. 959 views
what is solubility of NaOH at pH 5.5 and 8.0 when Ksp for NaOH is 5x 10^-10
1. 0 answers
2. asked by Tejpal Chandrakar
3. 329 views
calculate the solubility of NaCl in a solution which contains 0.1 M CaCl2
1. 0 answers
2. asked by Tejpal Chandrakar
3. 399 views
1. A bond has a $1,000 par value (face value) and a contract or coupon interior rate of 8%. A new issue would have a flotation
1. 0 answers
2. asked by Anonymous
3. 521 views
2. A new common stock issue paid a $1.50 dividend last year. The par value of the stock is $25, and earnings per share have
1. 0 answers
2. asked by Anonymous
3. 1,102 views
Line BD bisects <ABC. m<ABD=2x+22. Find m<DBC.
1. 1 answer
2. asked by Joel
3. 396 views
I have no idea how to solve this problem...A village wants to build a community center that is projected to cost 1.2 million
1. 0 answers
2. asked by Ashley
3. 425 views
solve equation a + 10 = 7.9
1. 1 answer
2. asked by Ricardo
3. 471 views
Integrate Sin(rootx) wrt x
1. 1 answer
2. asked by abhi
3. 408 views
copper metal reacts with nitric acid. assume that the reaction is 3Cu(s) + 8HNO3(aq) ——> 3Cu(NO3)2(aq) + 2NO(g) + 4H2O(l).
1. 1 answer
2. asked by robert
3. 1,478 views
four particles each of mass 1kg at rest of four corners of a square as shown in the fig . find the coordinates of the mass of
1. 1 answer
2. asked by sinta
3. 587 views
The question is 24 (-6)-1/-5I don't understand what you do with the 24. I got -145/-5=29 I multiplied 24 by -6 but I don't think
1. 1 answer
2. asked by Cherie
3. 354 views
Simplify using identitestan(-x)cosx
1. 1 answer
2. asked by Raeven
3. 329 views
5/1/4+2/1/4+1/8
1. 1 answer
2. asked by laureen
3. 243 views
7/1/2-1/1/8-2/1/5
1. 1 answer
2. asked by laureen
3. 261 views
Question as follows:75.0g tartaric acid in 1 Liter is what molarity(moles/liter) mw=150.087 g/mol M1= 25 ml tartaric solution is
1. 2 answers
2. asked by Cicily
3. 1,034 views
The satellite is in a circular orbit 400 km above the Earth's surface, where the free-fall acceleration is 8.71 m/s2. The radius
1. 2 answers
2. asked by Anonymous
3. 581 views
in a reaction of 3Cu(s)+ 8HNO3(aq)�¨ 3Cu(NO3)2(aq) +2NO(g) + 4H2O(l). if 5.58 grams of Cu(no3)2 is made how many grams of
1. 1 answer
2. asked by robert
3. 920 views
Which direction (Eastwards or Westwards) in the sky would the Sun appear to move as seen by a stationary observer on the surface
1. 1 answer
2. asked by Leslie
3. 489 views
Lisa school supplies suffred a fire loss. The company needs to estimate the cost of good destroyed. Beginning inventory was
1. 0 answers
2. asked by kelvin
3. 433 views
A car enters an interstate highway 15 mi north of a city.The car travels duenorth at an average speed of 62.5 mi/h.Write an
1. 2 answers
2. asked by aia
3. 1,516 views
Nitrogen oxide reacts with oxygen gas to form nitrogen dioxide (NO2). In one experiment 0.866 mole of NO is mixed with 0.503
1. 1 answer
2. asked by Alexis
3. 4,512 views
A skier starts from rest at the top of a hill that is inclined at 9.5° with respect to the horizontal. The hillside is 225 m
1. 1 answer
2. asked by monic
3. 486 views
A gas is confined to a cylinder under constant atmospheric pressure, as illustrated in the following figure. When the gas
1. 1 answer
2. asked by Anonymous
3. 801 views
Calculate the amount of heat in joules required to heat 43 grams of water from 28 degrees celcius to the normal boiling point
1. 1 answer
2. asked by Anonymous
3. 1,070 views
wie heisst die kleinste siebenstellige zahl,wenn keine ziffer mehr als zweimal vorkommen darf
1. 4 answers
2. asked by priyanka
3. 616 views
wie heisst die grÃ¶sste vierstellige zahl aus lauter verschiedenen ziffern
1. 1 answer
2. asked by priyanka
3. 421 views
stmmt das wenn man im hunderterfeld ein feld nach rechts springt kann sich der einer verÃ¤ndern
1. 0 answers
2. asked by kaveena
3. 436 views
Let ABC be a triangle in the plane. Find circles C0;C1; : : : ;C6 such that Cjhas exactly j points in common with the boundary
1. 2 answers
2. asked by jenny
3. 444 views
,,wenn man im hunderterfeld zwei felder nach unten springt ,verÃ¤ndert sich der hunderter um 1
1. 0 answers
2. asked by kaveena
3. 352 views
was ist ein mittel wert
1. 0 answers
2. asked by priyanka
3. 908 views
Vector Aarrowbold points in the negative y direction and has a magnitude of 8 units. Vector Barrowbold has the same the
1. 1 answer
2. asked by HELP
3. 477 views
um was besteht sprache
1. 2 answers
2. asked by priyanka
3. 271 views
Arrange the following atoms in order of increasing size from smallest to largest.Phosphorus Fluorine Chlorine Sulfur
1. 2 answers
2. asked by Den
3. 3,114 views
A living room set lists for $10,800 and carries a trade discount of 20 percent. Freight (FOB shipping point) of $60 is not part
1. 1 answer
2. asked by lois11952
3. 1,146 views
One mole of an ideal gas at 25C and 1 bar is allowed to expand adiabatically against a constant external pressure of 1.00 bar
1. 0 answers
2. asked by Dorota
3. 763 views
One mole of an ideal gas undergoes an isothermal reversible expansion, doing 1 kJ of work and doubling the volume. What is its
1. 0 answers
2. asked by Dorota
3. 895 views
In a game of basketball, a forward makes a bounce pass to the center. The ball is thrown with an initial speed of 3.1 m/s at an
1. 1 answer
2. asked by HELP
3. 503 views
Snowballs are thrown with a speed of 12.5 m/s from a roof 7.8 m above the ground. Snowball A is thrown straight downward;
1. 0 answers
2. asked by HELP
3. 683 views
In a 1.0x10^-4 M solution of HClO(aq), identify the relative molar amounts of these species:HClO, OH-, H3O+, OCl-, H2O
1. 4 answers
2. asked by karla
3. 12,918 views
The volume in cubic meters of a 141541 kg blue whale?
1. 1 answer
2. asked by Anonymous
3. 407 views
A certain weak base has a Kb of 9.00x10^-7. What concentration of this base will produce a pH of 10.30?
1. 1 answer
2. asked by encee
3. 951 views
A total of 16 mice are sent down a maze, one by one. From previous experience, it isbelieved that the probability a mouse turns
1. 1 answer
2. asked by andy
3. 483 views
How do you become a tutor on Jiskha Homework Help
1. 3 answers
2. asked by jman
3. 1,226 views
decomposing 0.00153 moles cholesterol will release what volume of hydrogen atoms?
1. 1 answer
2. asked by cris
3. 357 views
A 100 kg sample of a metal is cooled from 100°C to 20°C by removing 20 kcal of heat. Calculate the specific heat capacity of
1. 2 answers
2. asked by Anna
3. 764 views
Hi! So for my education class I need to write a sample Lesson Plan. The subject/topic can be anything. Any ideas on what to
1. 4 answers
2. asked by y912f
3. 1,106 views
In what way does the setting of a small town during the Great Depression impact the characters and plot of "Gumption"?a. The
1. 1 answer
2. asked by Ashley
3. 699 views
A 250 gram sample of metal is warmed from 50°C to 90°C when 100 calories of heat are added. What is he specific heat capacity
1. 1 answer
2. asked by Raylee
3. 623 views
what is 3.65 rounded to the nearest hundreth?
1. 3 answers
2. asked by anthony
3. 1,402 views
A 100 kg sample of a metal is cooled from 100°C to 20°C by removing 20 kcal of heat. Calculate the specific heat capacity of
1. 1 answer
2. asked by Anna again...help!
3. 1,010 views
A particle is projected from ground in a vetical direction at t=0 sec. at t=0.8 s, it reaches h=14m .It will again come to the
1. 2 answers
2. asked by Anonymous
3. 3,458 views
When multiplying is there a rule stating that the numbers being multiplied can't have the same two last numbers as the product
1. 1 answer
2. asked by james
3. 408 views
3. It’s fourth down in the big football game, and the game is tied with 2 seconds to go! You are called on to win the game
1. 1 answer
2. asked by Chanel
3. 587 views
3 − 24 ÷ 8 + 42
1. 1 answer
2. asked by ISABELAAAAAAAAAAA
3. 219 views
When a polynomial is divided by (x+2), the remainder is -19. When the same polynomial is divided by (x-1), the remainder is 2.
1. 1 answer
2. asked by KnowsNothing
3. 535 views
How do the solutions of the equation compare to the length of the rectangular object and the x-intercept of the graph? Provide
1. 1 answer
2. asked by Andrea
3. 440 views
-13 + 20
1. 1 answer
2. asked by ISABELAAAAAAAAAAA
3. 246 views
Five percent of all items sold by a mail-order company are returned by customers for a refund. Find the probability that of two
1. 1 answer
2. asked by Mk
3. 1,301 views
A 1,440-N crate is being pushed across a level floor at a constant speed by a force vector F of 380 N at an angle of 20.0°
1. 1 answer
2. asked by Uzy
3. 763 views
Hello!A 22.0 L cylinder containing helium gas at a pressure of 28.1 atm is used to fill a weather balloon in order to lift
1. 1 answer
2. asked by Anonymous
3. 1,135 views
How do you find the three ordered pairs that satisfy this equation Y = 3x - 4.How do you graph the line Y = 5x - 4. How do you
1. 5 answers
2. asked by Linda
3. 2,492 views
3x - 6y + 2z - 5x - 3y + 8z
1. 1 answer
2. asked by ISABELAAAAAAAAAAA
3. 242 views
How did physical features affect migration and the distribution of culture groups in the Pacific Island Region?
1. 35 answers
2. asked by rawr... im a dinosaur.... rawr
3. 871 views
32 + (5 - 2) · 4 -
1. 1 answer
2. asked by ISABELAAAAAAAAAAA
3. 223 views
solve 8x+4=3x+8
1. 1 answer
2. asked by GERRY
3. 384 views
A company placed $1,000,000 in three different accounts. It placed part in short term notes paying 4.5% per year, twice as much
1. 1 answer
2. asked by Marilu
3. 719 views
I have to write an essay about how Morrison uses power stuggle in Beloved to enhance the meaning of her work.I think I have some
1. 1 answer
2. asked by Jess
3. 569 views
For the diprotic weak acid H2A Ka1=2.1x10^-5 and Ka2=5.5x10^-7. What is the pH of a 0.0800M solution of H2A? What are the
1. 1 answer
2. asked by ice cream
3. 2,170 views
A firm has an opportunity to invest in a new device that will replace two of the firm's older machines. The new device costs
1. 0 answers
2. asked by Anonymous
3. 549 views
When you take your 1200 kg car out for a spin, you go around a corner of radius 54.5 m with a speed of 16.2 m/s. The coefficient
1. 1 answer
2. asked by Anonymous
3. 946 views
You submerge 100 grams of steel in 200 grams of water. If the steel has an initial temperature of 80°C and the water has an
1. 1 answer
2. asked by Connor
3. 2,206 views
How do we prepare 500mL of 0.5 percent w/v solution of NaOH if we have stock solution of 50 percent w/v NaOH on hand?
1. 1 answer
2. asked by Stacy
3. 543 views
You wish to heat 30 kg of water from 60°C to 80°C. How many kcal of heat are necessary to do this? To how many kJ does this
1. 1 answer
2. asked by LeAnne
3. 1,047 views
Assume that 41.0 cal of heat is applied to a 30. g sample of sulfur at 16°C. What is the final temperature of the sample if the
1. 0 answers
2. asked by marie
3. 349 views
A 2.1 103-kg car starts from rest at the top of a 5.9-m-long driveway that is inclined at 19° with the horizontal. If an
1. 1 answer
2. asked by heather
3. 692 views
if the simple interest on $2000 for 8 years is $960, then what is the interest rate?
1. 2 answers
2. asked by Hailey
3. 614 views
suppose you want to heat 40g of water by 20c.how many joules of heat are required
1. 1 answer
2. asked by Anonymous
3. 421 views
discuss the common behaviors a teacher may seein young children and target for modfication or replacement. Propose possible
1. 3 answers
2. asked by bowser
3. 399 views
analyze the importance of collecting and reviewing data before implenting. Specific interventions to address challenging.
1. 3 answers
2. asked by bowser
3. 788 views
Let y=cos x+sin x/cos x -sin x. Find dy/dx
1. 1 answer
2. asked by Anonymous
3. 296 views
A stone is thrown upward from the edge of a cliff overlooking the ocean. The initial speed of the stone is 20m/s, and it's
1. 1 answer
2. asked by nicky
3. 672 views
How much heat is necessary to heat 100 g of water at 10°C to 95°C?
1. 1 answer
2. asked by Anonymous
3. 398 views
A total of 16 mice are sent down a maze, one by one. From previous experience, it isbelieved that the probability a mouse turns
1. 1 answer
2. asked by please help
3. 1,645 views
why one cannot find the north pole of the earth using only a simple compass
1. 1 answer
2. asked by deb
3. 424 views
what device could use th earth's magnetic felds to produce energy and how it would work?
1. 1 answer
2. asked by mary
3. 398 views
How would we make 500mL of a 1.5 percent w/v solution of KCl in water?
1. 1 answer
2. asked by Stacy
3. 360 views
an object who's mass is 5.20kg has a gravitational potential energy of 10.30kJ. How highh above the ground is the object
1. 1 answer
2. asked by paramount high
3. 356 views
Suppose that the 1.3 km span of the Golden Gate Bridge had no expansion joints. Calculate how much longer the bride would be if
1. 1 answer
2. asked by Anonymous
3. 792 views
Case Study..... Judy was 18 when the terrible crash happend. While judi was returning home from work, a driver ran a red light
1. 0 answers
2. asked by Arron
3. 799 views
A curve is defined by the equation x^2y^3+4x+2y=12. Find dy/dx in terms of x and y.
1. 1 answer
2. asked by Anonymous
3. 315 views
Let y=cos x+sin x/cos x -sin x. Find dy/dx
1. 1 answer
2. asked by Anonymous
3. 746 views
Let y=cos x+sin x/cos x -sin x. Find dy/dx
1. 0 answers
2. asked by Anonymous
3. 306 views
enough of a monoprotic acid is dissolved in water to produce a 0.0111M solution. The pH of the resulting solution is 2.62.
1. 1 answer
2. asked by airo
3. 719 views
From the window of a building, a ball is tossed from a height y0 above the ground with an initial velocity of 9.40 m/s and angle
1. 0 answers
2. asked by Bill
3. 472 views
From the window of a building, a ball is tossed from a height y0 above the ground with an initial velocity of 9.40 m/s and angle
1. 0 answers
2. asked by Bill
3. 438 views
A sample of gas in a 25.0-L containter exerts a pressure of 3.20 atm. Calculate the pressure exerted by the gas if the volume is
1. 1 answer
2. asked by Layney
3. 583 views
An invoice of $12,000 is dated April 5. The terms 5/10,n/30 are offered. Find the amount due if the discount is earned. Show
1. 1 answer
2. asked by Allie
3. 624 views

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