# Johnny

Popular questions and responses by Johnny
1. ## History

Why do you think state and local governments have a major role in providing important services? Why doesn't the federal government take on more of this role?

2. ## CHemistry

Arrange the following compounds in order of decreasing ease of elution from a column of silica gel: a) 2-octanol; b) 1,3-dichlorobenzene; c) tert-butylcyclohexane; d) benzoic acid I was wondering if this was the correct order of it: Tert-butylcyclohexane >

Why is it that the reward for capital is interest? I don't get how the business is rewarded interest, isn't it the banks?

4. ## Organich Chemistry

What effect will the following factors have on a chromatographic separation 1) too strong an absorbent 2)collection of large elution fractions

5. ## Math

Solve for the unknown quantity in each proportion

6. ## History

Which accurately describe the involvement of the Catholic Church in the Crusades? A.)In the 13th century, the Church sanctioned the Children’s Crusade in which adolescents and teenagers set out from Europe to reclaim Jerusalem. B.)In 1208, the Church

7. ## geometry

Given: ΔАВС, m∠ACB = 90° CD⊥AB,m∠ACD =60° BC = 6 cm. Find: АD

8. ## physics

I am having great difficulty with this question. A block is placed on a frictionless ramp at a height of 12.5 m above the ground. Starting from rest, the block slides down the ramp. At the bottom of the ramp, the block slides onto a frictionless horizontal

9. ## Chemistry

In the following reaction, which substance is acting as the Brønsted-Lowry acid? NH3 + H2O NH4+ + OH

10. ## physics!

howdy, just cant seem to get this question, can anyone express this question in words i can get?! thanks A sound wave of wavelength 0.8 m divides into two equal parts that recombine to interfere constructively, with the original difference between their

11. ## physics

In downhill speed skiing a skier is retarded by both the air drag force on the body and the kinetic frictional force on the skis. Suppose the slope angle is è = 37.5°, the snow is dry snow with a coefficient of kinetic friction ìk = 0.0400, the mass of

12. ## Algebra 2 Probability

There are 10 cards. Each card has one number between 1 and 10, so that every number from 1 to 10 appears once. In which distributions does the variable X have a binomial distribution? When a card is chosen at random with replacement six times, X is the

13. ## College physics

A 0.006 00-kg bullet traveling horizontally with a speed of 1.00 x 10^3 m/s enters an 20.1-kg door, imbedding itself 10.9 cm from the side opposite the hinges as in the figure below. The 1.00-m wide door is free to swing on its frictionless hinges. At what

14. ## physics

A firefighter with a weight of 722 N slides down a vertical pole with an acceleration of 3.11 m/s2, directed downward. (a) What are the magnitude and direction of the vertical force (use up as the positive direction) exerted by the pole on the firefighter?

15. ## Chemistry

Explain, in terms of particles, concentration, and reaction rate, what you expect to happen when methane gas (CH4) and hydrogen sulfide gas (H2S) are sealed in a flask and reach a state of equilibrium. CH4 (g) +2 H2S (g) CS2 (g) + 4 H2 (g

16. ## physics

A 1175 kg car carrying four 82 kg people travels over a rough "washboard" dirt road with corrugations 4.0 m apart which causes the car to bounce on its spring suspension. The car bounces with maximum amplitude when its speed is 24 km/h. The car now stops,

17. ## Chemistry

How many grams are there in 2.3 x 10^24 atoms of silver? I need to use dimensional analysis, and I'm not sure of the conversions I'd need to solve this problem. Thank you!

18. ## math

Mr. Angulo buys 5/8 pound of red grapes and 3/8 pound of green grapes. How many pounds of grapes did mr.angulo buy in all?

19. ## the odyssey

what is an important theme in the odyssey,Part 2?Describe the events that illustrate this theme? You need to go to www.sparknotes.com/lit, find Odyssey (in the O section, not the T's), read through the themes section, and decide. Let us know what you

20. ## Chemistry

3AgNO3 + Na3PO4 ---> Ag3PO4 + 3NaNO3 Silver nitrate and sodium phosphate are reacted in equal amounts of 200. g each. How many grams of silver phosphate are produced? 1. What is the limiting? 2. How much silver phosphate is produced? 3. How much is in

21. ## Calculus and Vectors

THE VECTORS a - 5b AND a-b ARE PERPENDICULAR. IF a AND b ARE UNIT VECTORS, THEN DETERMINE a dot b

22. ## Chemistry

Hey bob- Here's what I got so far: 3AgNO3 + Na3PO4 ---> Ag3PO4 + 3NaNO3 Silver nitrate and sodium phosphate are reacted in equal amounts of 200. g each. How many grams of silver phosphate are produced? 1. What is the limiting? 2. How much silver phosphate

23. ## Chemistry

Mg + 2HCl ----> MgCl2 + H2 What volume of hydrogen at STP is produced from the reaction of 50.0g of Mg and the equivalent if 75g of HCl? 1. What is the limiting reagent? 2. What is the volume of hydrogen produced? 3. How much is in excess?

24. ## Social studies

Why was the mayflower compact so significant?

25. ## Chemistry

2. When a 1.000 g sample of the rocket fuel hydrazine, N2H4, is burned in a bomb calorimeter which contains 1200g of water, the temperature rises from 24.62C to 28.16C. If the C for the bomb is 840 J/C Calculate: q reaction for combustion of a one-gram

26. ## chemistry

which of the following tetrahedral molecules is polar? please explain CH4 CF4 CH3F thanks

27. ## Physics

The acceleration of a bus is given by a_x(t)=At, where A= 1.21 is a constant. A)if the bus's velocity at time t_1= 1.14s is 5.03m/s, what is its velocity at time t_2= 2.04 ? B)if the bus's velocity at time t_1= 1.14s is 6.02m/s, what is its velocity at

28. ## Geometry

Given: △ABC, ADEF rhombus D∈AB, E∈BC, F∈AC AB=14, BC=12, AC=10 Find: BE and EC

29. ## Economics

At a management luncheon, two managers were overheard arguing about the following statement “A manager should never hire another worker if the new person causes diminishing returns”. Is this statement correct? If so, why? If not, explain why not.

30. ## Math

A poster is 3 times a long as it is wide. A banner is 5 times as long as it is wide. Both the banner and the poster have perimeters of 24 inches. What are the length and width of the poster and the banner

31. ## chemistry

Calculate the concentrations of all species in a 1.67 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1 = 1.4× 10–2 and Ka2 = 6.3× 10–8. I know how to find the Na^+ and SO3^-2 but I don't know how to find

32. ## algebra

simplify the number using the imaginary unit i. √-16

33. ## Math - Polynomials

off-topic: yay it's friday :D Simplify each polynomial. 1. 6g + 8k + 9g + 2k A) 3g + 10k B) -3g + 10k *** C) 17gk D) 10k - 3 2. -4x + 6x2 + 5x A) 7x^3 B) 6x^2 + 9x *** C) 6x^2 - 9x D) 6x^2 + x 3. a^2 + 5a - 3a^2 A) 5a + 2a^2 *** B) 5a - 2a^2 C) 2a^2 + 5a

34. ## Physics

A crate sets on wooden horizontal surface (a wooden floor). The figure shows a top view of this looking down onto the crate (gravity would be acting into the page). Man one and man two apply forces F1 and F2, at angles of θ1 and θ2 respectively, with the

35. ## Chemistry

A .288 g sample of an unknown monoprotic organic acid is dissolved in water and titrated with a .115 M sodium hydroxide solution. After the addition of 17.54 mL of base, a pH of 4.92 is recorded. The equivalence point is reached when a total of 33.83 mL of

36. ## algebra 1

simplify (0.4)3

37. ## math

In ΔABC,AD and BE are the angle bisectors of ∠A and ∠B and DE║ AB.If m∠ADE is with 34° smaller than m∠CAB,find the measures of the angles of ΔADE.

38. ## physics

An automobile can be considered to be mounted on four identical springs as far as vertical oscillations are concerned. The springs of a certain car are adjusted so that the oscillations have a frequency of 3 Hz. (a) What is the spring constant of each

39. ## Plz help with literature

The Most Dangerous Game Directions: Each question has a different point value. (134 total) As always, answer in complete sentences. Use the back of the sheet or your own paper. DO NOT CRAM ANSWERS ON THIS SIDE OF THIS SHEET! (5) 1. What do you admire or

40. ## calculus

let theta be an angle of quadrant IV such that sin theta = -8/9 find the exact value of sec theta and cot theta?

77. ## Chemistry

During a fractional distillation of a 25mL ethanol/H2O soln, it was found that first the temperature stayed constant at ~75 C for 3mL of soln, then it went up to 100 C for the rest of the soln. The first question is: Assuming that the unknown (ethanol) did

78. ## math

A ship model is 0.5% actual size. If the model is 1 meter long, what is the actual length of the ship?

79. ## chemistry

If you are given a 2.0 M solution of sucrose, describe in detail how you would make the following solutions (include specific glassware): a. 500 ml of 1.2M sucrose b. 300 ml of 0.55M sucrose

80. ## stats

The probability is 0.7 that a person shopping at a certain store will spend less than $20. For groups of size 13, find the mean number who spend less than$20.

81. ## physics

A wheel starts from rest and rotates with constant angular acceleration to an angular speed of 9.3 rad/s in 1.39 s. Find the magnitude of the angular acceleration on the wheel

82. ## physics

An astronaut comes loose while outside the spacecraft and finds himself floating away from the spacecraft with only a big bag of tools. In desperation, the astronaut throws his bag of tools in the direction of his motion (away from the space station). The

83. ## AP physics 2

You are moving into an apartment and take the elevator to the 6th floor. Suppose your weight is 790 N and that of your belongings is 1080 N. (a) Determine the work done by the elevator in lifting you and your belongings up to the 6th floor (15.2 m) at a

84. ## NEED HELP ASAP PHYSICS@!!1

Tarzan (m = 78.4 kg) tries to cross a river by swinging from a vine. The vine is 10 m long. Tarzan doesn't know that the vine has a breaking strength of 1045 N. What maximum speed (in m/s) can Tarzan have at the bottom of the swing (as he just clears the

85. ## phyics

A ball is thrown straight upward. At 5.00 m above its launch point, the ball’s speed is one-half its launch speed. What maximum height above its launch point does the ball attain?

86. ## Economics

Engineers at a national research laboratory built a prototype automobile that could be driven 180 miles on a single gallon of unleaded gasoline. They estimated that in mass production the car would cost \$40,000 per unit to build. The engineers argued that

87. ## physics

The figure below shows a "conical pendulum", in which the bob (the small object at the lower end of the cord) moves in a horizontal circle at constant speed. (The cord sweeps out a cone as the bob rotates.) The bob has a mass of 0.035 kg, the string has

88. ## Physics

A driver of a car going 95.0 km/h suddenly sees the lights of a barrier 39.0 m ahead. It takes the driver 0.95 s before he applies the brakes, and the average acceleration during braking is -10.0 m/s2. What is the maximum speed at which the car could be

89. ## Physics

A neutron with a mass of 1.67x10^-27 kg traveling east with a kinetic energy of 2.00x10^-21J collides perfectly elastically with helium nucleus with a mass 6.68x10^-27 kg that is initially at rest. After the collision, the neutron has a kinetic energy

90. ## chemistry

Which of the following statements concerning differences between ionic and molecular compounds is correct? Molecular compounds contains two elements, and ionic compounds contain three of more elements ionic compounds contain oxygen, and molecular compounds

91. ## Chemistry

What's the formula for Li2Co3+Co(NO3)3(aq) ->

92. ## math

The number 1 is a perfect square (1X1=1) and a perfect cube (1X1X1=1). What is the next smallest whole number which is both a perfect square and a perfect cube?

93. ## ACTIVITY-BASED COSTING

Globe Company produces two products, A1 and B2. A1 is a high-volume item totaling 20,000 units annually. B2 is a low-volume item totaling only 6,000 units per year. A1 requires one hour of direct labor for completion, while each unit of B2 requires 2

94. ## physics

In 1956, Frank Lloyd Wright proposed the construction of a mile-high building in Chicago. Suppose the building had been constructed. Ignoring Earth's rotation, find the change in your weight if you were to ride an elevator from the street level, where you

95. ## Physics...PLZ HELP

How much work is done to move 1.0 micro coloumb of charge from the negative terminal to the positive terminal of a 1.8V battery?

96. ## physics

12.8 kg of ice at 0 C is dropped into 3.3 kg of water at C. What fraction of the ice melts? =

97. ## Math

A golden rectangle has a length of 10 cm. The ratio of its length to its width is (1 + sqrt 5)/2 what is the width of the rectangle in simplified radical form? I need to know the formula to solve other problems like this.

98. ## Financial Management 2-2

If an individual buys stock on margin and its price rises, the investor A. must put up additional collateral. B. must pay tax on the unrealized gain. C. must pay interest on the borrowed funds. D. may take delivery of the stock. I would think the answer is

99. ## chemistry

In the explosion of a hydrogen-filled balloon, 0.30g of hydrogen reacted with 2.4g of oxygen to form how many grams of water vapor? (Water vapor is the only product.)