# Questions Asked onJanuary 26, 2013

1. ## General Chemestry

A galvanic (voltaic) cell consists of an electrode composed of chromium in a 1.0 M chromium(II) ion solution and another electrode composed of gold in a 1.0 M gold(III) ion solution, connected by a salt bridge. Calculate the standard potential for this

2. ## Physics

A red ball is thrown down with an initial speed of 1.3 m/s from a height of 28.0 meters above the ground. Then, 0.6 seconds after the red ball is thrown, a blue ball is thrown upward with an initial speed of 24.7 m/s, from a height of 0.8 meters above the

3. ## physics

A small ferryboat is 4.00 m wide and 6.00 m long. When a loaded truck pulls onto it, the boat sinks an additional 4.50 cm into the river. What is the weight of the truck?

4. ## Statistics

A population has a mean of   30 and a standard deviation of   5. a. If 5 points were added to every score in the population, what would be the new values for the mean and standard deviation? b. If every score in the population were multiplied by 3 what

5. ## Legal Writing

I am asked to write and internal office memo to my supervising attorney that advises of the results of my research on a given topic and applies the law to the facts in my case. I have attached the exercise along with my draft internal memo. Can someone

6. ## math

[2.05] Choose the equation that could be used to find two consecutive integers whose sum is 69.

7. ## maths

A milk tanker cylinderical in shape having a diameter of 2m and height 4.2m supplies milk to the two booths in the ratio3:2 .One of the milk booths having arectangular base area of 3.96 sq. m and the other has a cylinderical vessel having diameter of 2m.

8. ## PHYSICS

Two wires have the same cross-sectional area and are joined end to end to form a single wire. The first wire has a temperature coefficient of resistivity of α1 =0.00603 (C°)-1 and a resistivity of 5.00 x 10-7Ω m. For the second, the temperature

9. ## physics

A 51.0 kg diver steps off a diving board and drops straight down into the water. The water provides an upward average net force 1370 N. If the diver comes to rest 4.6 m below the water's surface, what is the total distance between the diving board and the

10. ## math

3 pumps, working 6 hours a day, can empy a water tank in 2 days. How many hours a day must 9 pumps work to empty the same tank in 1 day?

11. ## marketing

The total profit approach to evaluating possible product-market strategic plans: a. is the best approach to use. b. cannot be used to compare possible plans unless they are very similar. c. may support a plan that is not the most profitable in the short

12. ## Physics

2 spheres of radii 10cm and 20cm contains charges 10microcoulomb and 20 micro coulomb respectively.they are separated by a distance 100cm.Where will the electric field be zero?

13. ## Physics

If an automobile engine delivers 45.2 hp of power, how much time will it take for the engine to do 5.40 105 J of work? (Hint: Note that one horsepower, 1 hp, is equal to 746 watts.) in seconds

14. ## Chemistry

Using chemical equations, show how the triprotic acid H3PO4 ionizes in water. Phases, such as (l) or (aq), are optional.

15. ## statistic

1. A distribution has a standard deviation of   12. Find the z-score for each of the following locations in the distribution. a. Above the mean by 3 points. b. Above the mean by 12 points. c. Below the mean by 24 points. d. Below the mean by 18 points.

16. ## Math 9 algebra

A mechanic charges $70 an hour plus the cost of parts to repair a vehicle. The parts cost$215 for the repair on Tamara's car. A) write an expression for the total cost, C, of repairing Tamara's car for any numbers of hours, n. B) use the expression you

17. ## Calculus

Determine the line through which the planes in each pair intersect. a) 3x+2y+5z=4 4x-3y+z=-1

18. ## Speech 09

I had to interview someone in my class and write speech about them. I need help on how to start my speech. How to introduce the person. Are there any examples you can give me so I would read and then write my speech. Please help!!!!!

19. ## Chemistry

The rate of a first-order reaction is followed by spectroscopy, monitoring the absorption of a colored reactant at 520 nm . The reaction occurs in a 1.29-cm sample cell, and the only colored species in the reaction has an extinction coefficient of 5700

20. ## Chemistry

The rate of a first-order reaction is followed by spectroscopy, monitoring the absorption of a colored reactant at 520 nm . The reaction occurs in a 1.29-cm sample cell, and the only colored species in the reaction has an extinction coefficient of 5700

21. ## algebar

A rectangle is 5 times as long as it is wide. If the area is 125 square feet, find its perimeter.

22. ## physics

A child and sled with a combined mass of 47.8 kg slide down a frictionless hill that is 7.18 m high. If the sled starts from rest, what is its speed at the bottom of the hill?

23. ## pHYSICS

Two resistors have resistances R(smaller) and R(larger), where R(smaller) < R(larger). When the resistors are connected in series to a 12.0-V battery, the current from the battery is 1.99 A. When the resistors are connected in parallel to the battery, the

24. ## age problem (math)

Nila is now x years old. 3 years ago, her brother ricky was twice as old as she. Write ricky's age 10 years from now in terms of x. (with solution pls... thanks...)

asked by HELP HELP HELP MNHS
25. ## physics

Water flowing through a garden hose of diameter 2.73 cm fills a 25.0-L bucket in 1.20 min. (a) What is the speed of the water leaving the end of the hose? m/s (b) A nozzle is now attached to the end of the hose. If the nozzle diameter is one-third the

26. ## math liberal arts

A piece of land in Ottawa with an area of 0.4 square kilometers is priced at 5600 Canadian dollars. If there are 1.358 Canadian dollars per (U.S.) dollar, then what is the price in dollars per squaremile?

27. ## marketing

Few people in Europe diet. So the same soft drink that PepsiCo sells in the U.S. under the brand name of Diet Pepsi is sold in England under the brand name of Pepsi MAX. This is an example of which part of the external market environment? a. Competitive b.

28. ## math

The English Alphabet has 20 letters more than one−fourth the number of letters in the Greek Alphabet. The English Alphabet has 26 letters. Which of the following equations would you use to find the number of letters, g, in the Greek Alphabet?

29. ## Math

Find the matrix A such that 1 0 −1 3 A = −1 −8 2 11 . Hint: Let A = a b c d A=

30. ## statistic

In a population of exam scores, a score of X  48 corresponds to z1.00 and a score of X  36 corresponds to z  –0.50. Find the mean and standard deviation for the population. (Hint: Sketch the distribution and locate the two scores on your sketch.) A

31. ## Algebra 2 ..........

Solve for x. 1/2(x-2)^3+1=0 Also please teach me how to factor cubic polynomials.

32. ## Biochemistry, Biology, Chemistry

An enzyme works on two substrates, S1 and S2. Its Km for S1 is 100mM and its Km for S2 is 10mM. Based on this information, answer the following questions: 1. For a given [E] will it have a higher Vmax for S1 or S2? Explain your answer 2. Is S1 or S2 a

33. ## Biochemistry

Muscle Hexokinase has a lower Km for glucose than live Hexokinase They both work best on Glucose, and convert Glc->Glc-6-P04. Would you expect their 3D shape to be identical? If not, how different would you expect them to be? Explain your answer. Thanks!

34. ## ANT101: Introduction to Cultural Anthropology (ACS

The Demographic Transition Model: (Points : 1) depicts how populations change over time. is based on the historical experience of the Third World. predicts the world’s population in the year 2002. supports the overpopulation perspective.

35. ## Biology

Okay so if i have two enzyme catalyzed reactions: 1) delta g of the ES = -22kJ/mol 2) delta g od the ES = 42 kJ/mol Is this first reaction going to have a higher reaction rate because the of the negative delta g, because doesnt a negative delta g give you

36. ## fractions

what is 1/2, 3/8and 1/4 from least to greatest

37. ## French

I'm stuck on these two questions regarding indirect object pronouns. for the first question would it be.. je s 'achète des gants.(à ta mère et à toi, Célia). For the second question: would it be.. Célia se achète un pantalon. (à moi)

38. ## Calculus

The height (in feet) at time t (in seconds) of a small weight oscillating at the end of a spring is given below. h(t) = 0.2 cos(2t) (a) Calculate the weight's average velocity over the time intervals [1, 2] and [5, 7].

74. ## math30

1. Your city has 700 000 households, and the probability that a household has exactly one vehicle is 17/23. a) Determine the number of households that can be expected to have exactly one vehicle.

75. ## physics

Tarzan swings on a 28.0 m long vine initially inclined at an angle of 22° from the vertical. (a) What is his speed at the bottom of the swing if he starts from rest? (b) What is his speed at the bottom of the swing if he starts with an initial speed of

76. ## Chemistry help

Write a descriptive text and a word equation on how silicon is extracted from earth's crust' .

77. ## chemistry

What volume of 0.010M silver nitrate will exactly react with 20ml of 0.0080M socium chloride solution?

78. ## physics

A spring has a force constant of 410.0 N/m. (a) Determine the potential energy stored in the spring when the spring is stretched 4.13 cm from equilibrium. (b) Determine the potential energy stored in the spring when the spring is stretched 3.06 cm from

79. ## Physics

A 2.1 kg ball is attached to a ceiling by a string. The distance from the ceiling to the center of the ball is 1.20 m, and the height of the room is 3.00 m. (a) What is the gravitational potential energy associated with the ball relative to the ceiling?

80. ## chemistry

What volume of 9.0Molarity of H2SO4 is required to react with 20.0g of NaOH?

81. ## physics

In a circus performance, a monkey on a sled is given an initial speed of 4.0 m/s up a 32° incline. The combined mass of the monkey and the sled is 19.1 kg, and the coefficient of kinetic friction between the sled and the incline is 0.20. How far up the

82. ## Math

It took Esteban 1 hour and a half to complete his math problems for homework. He spent 3 to 5 minutes working each problem. Which is a reasonable number of problems that Esteban completed for homework? A.10 B.12 C.15 D.20 D? Shaquille O' Neal height

83. ## physics

What speed would a fly with a mass of 0.61 g need in order to have the same kinetic energy as a 1250 kg automobile traveling at a speed of 11 m/s?

84. ## physics

A flight attendant pulls her 66 N flight bag a distance of 318 m along a level airport floor at a constant velocity. The force she exerts is 43 N at an angle of 52° above the horizontal. (a) Find the work she does on the flight bag. (b) Find the work done

85. ## physics

While standing on a bridge 30.0 m above the ground, you drop a stone from rest. When the stone has fallen 3.20 m, you throw a second stone straight down. What initial velocity must you give the second stone if they are both to reach the ground at the same

86. ## physics

A plane designed for vertical takeoff has a mass of 9.0 103 kg. Find the net work done by all forces on the plane as it accelerates upward at 11.3 m/s2 through a distance of 34.8 m after starting from rest.

87. ## physics

A person lifts a 4.6 kg cement block a vertical distance of 1.43 m and then carries the block horizontally a distance of 10.50 m. (a) How much work is done by the person in the process? (b) How much work is done by gravity in the process?

88. ## real number

How many positive factors does 62x(63^3+63^2+63+1)+1 have? (with solution pls... thanks...)

asked by HELP HELP HELP MNHS

125. ## marketing

When a local bank in Kansas City makes loans to its small business customers, it charges them an interest rate for borrowing money. Interest rates are part of the ____________ environment. a. cultural and social b. economic c. legal d. political e.

126. ## Physics

A +2 uC and a +10 uC are 3cm apart a) Find the electrostatic force between the charges b) If the charges are brought together and touched, what would be the charge on each one? c) These spheres are then moved 3 cm apart. What would be the force between

129. ## Math

(x^2+y^2)^2=4(x^2-y^2) Equation of a lemniscate curve

130. ## algebra

Determine whether or not the relation is a function. (-3,6), (-2,7, (-1,8), (0,9)

131. ## Chemistry

Using oxidation numbers, explain why this reaction is not a redox reaction? CaCo3 --------> CaO + Co2 Please help.

132. ## french

im stuck on indirect object pronouns. i don't know if for example, Je______ achète des baskets. (à mes cousins) if i have to use the verb aller? would it be Je vais leur?

133. ## accounting

Can uot help me with journal entries

134. ## Algebra 2

How would you solve the following I'm stumped.. 1. 2x^2(squared)=30-4x 2. X^3(cubed)+8x=-6x^2(squared) Thanks!

135. ## Math

The Americans with disabilities act requires that wheelchair ramps have a slope no greater than 1/12 what is the minimum horizontal length a 2 foot high ramp can have ?

136. ## science

Lipids: Not a polymer because _ __x's energy than carbs Saturated= Unsaturated= Nucleic Acids: RNA= DNA= Carbohydrates: Building blockks

137. ## Chemistry

Air in the vicinity of a local power station contains 8.8x10^-4 gm^-3 SO2. What volume of 0.001moldm^-3 Iodine solution would be required to react with a solution obtained from 200dm^3 of contaminated air? The equation given is SO2 + I2 + 2H2O ==> H2SO4 +

138. ## cost/managerial

andromeda company's break even point is 2,400 units. variable cost per unit is \$42; total fixed costs are 67,200 per year. what price does andromeda charge?