# If the relative atomic mass of CH2O is calculated it's empirical formula (C=12,H=1,O=16)

46,086 questions, page 143
1. ## chemistry

Bottle A has a volume of 1.2 L, When Filled with sugar water the bottle has a total mass of 5.0 pounds. If the empty bottle has a mass of 800 grams. determine the density of the sugar water in g/mL.

asked by Yoyo on August 17, 2011
2. ## chemistry

Mg3N2 +6H2O- 3Mg(OH)2 + 2NH3-- How many grams of H2O are needed to produce 150g of Mg(OH)2? I thought I had this but.....the correct answer should be 93 grams Where did I go wrong?? 1) Change 150 g Mg(OH)2 into moles by dividing by molar mass from periodic

asked by Connie on October 2, 2011
3. ## PHY 231

Mass m1 = 11.3 kg is on a horizontal surface. Mass m2 = 5.70 kg hangs freely on a rope which is attached to the first mass. The coefficient of static friction between m1 and the horizontal surface is μs = 0.573, while the coefficient of kinetic friction

asked by Andrea on January 31, 2016
4. ## physics

A “swing” ride at a carnival consists of chairs that are swung in a circle by 13.5 m long cables attached to a vertical rotating pole, as the drawing shows. Note that the cables make an angle of 60.0o with respect to the vertical, as shown. Suppose the

asked by korlysse buhay on November 15, 2017
5. ## Cost accounting

(High-low method) Information about SnoCos’ utility cost for the last six months of 2008 follows. The high-low method will be used to develop a cost formula to predict 2009 utility charges, and the number of machine hours has been found to be an

asked by Josephine on September 30, 2009
6. ## chemistry

this is my class data list of total heat (KJ) vs Mass of biodiesel fuel burned: Heat of combustion: 24948 J 606.48 J 35933.3 J 26763 J 24062.5 J 29400 J 6972 J Mass: 0.39 g 0.31 g 0.18 g o.43 g o.36 g o.28 g 0.34 g Heat absorbed: 9.729 KJ 1.9564 KJ 11.51

asked by Jonathan T on March 18, 2008
7. ## Physics

30. A truck of mass 2250 kg is used to pull a 330 kg trunk out of an old quarry as shown below. There is 550 N of rolling resistance for the truck. Ignore mass and friction of the pulley. (a) If the trunk is accelerated upward at 2.00 m/s2 what is the

asked by Liz on October 19, 2012
8. ## Chem

742.5 J of energy is used to heat an unknown mass of aluminum from 10° C to 65.0° C. The specific heat capacity of aluminum = 0.90 J/(g·°C). What is the mass of the aluminum?

asked by Summer on March 14, 2018
9. ## Chemistry

Cow's milk contains 32g of protein in 1052g of milk. What is mass/mass percent concentration of protein in the milk?

asked by Elaine on February 7, 2013
10. ## physics

Two spheres are placed so that their centers are 2.6 meters apart. The force between the two spheres is 2.75x10^-12N What is the mass of each sphere if one sphere is twice the mass of the other sphere?

asked by chelsea on May 27, 2009
11. ## physics

Star Z has 1/5 the radius of Earth and 1000 times the Earth's mass. If a mass weighs 1.0 N on Earth, what does it weight on Star Z? Thank you.

asked by anil on January 25, 2011
12. ## physics

Star Z has 1/5 the radius of Earth and 1000 times the Earth's mass. If a mass weighs 1.0 N on Earth, what does it weight on Star Z?

asked by Annika on January 25, 2011
13. ## physics

Star Z has 1/5 the radius of Earth and 1000 times the Earth's mass. If a mass weighs 1.0 N on Earth, what does it weight on Star Z?

asked by Annika on January 25, 2011
14. ## physics

A chair has a mass of 15kg.If a cat sits on the chair, and the cat has a mass of 5.4kg. What is the normal force on the chair?

asked by amaml on October 30, 2014
15. ## chemistry

copper (II) flourine comtains 37.42 % of mass. use this percentage to calculate the mass of flourine in grams contained in 28.5 g of copper (II) flourine

asked by Justin on December 5, 2012
16. ## Science/Math

7. A student measures the mass of a paper clip. The student’s data table is shown below. The accepted value for the paper clip’s mass is 1.14 g. Trial # Mass 1 2.45 g 2 2.40 g 3 2.42 g Which of the following best describes the student’s measurements?

asked by Algalla on September 12, 2017
17. ## Chemistry

2. The red subatomic particles can best be described as? counted into the mass of the atom, negatively charged, located in the electron cloud not counted into the mass of the atom, negatively charged, located in the electron cloud not counted into the mass

asked by SwimmerGirl on January 16, 2018
18. ## Calc

The region bounded by y=2.5x^2 and y=4x is to be rotated about both axes and the volume generated calculated by both the washer and the shell methods. 1)The volume of the region bounded by y=2.5x^2 and y=4x, when rotated about the x-axis is? 2) The volume

asked by l on September 16, 2012
19. ## geometry

If the width and height of a rectangular prism are each shrunk to one seventh of the original size but the length remains the same, what is the formula to find the modified surface area?

asked by khun on March 17, 2014
20. ## Physics (Formula)

I just need the formula. A 2.5 kg object is whirled in a vertical circle whose radius is 0.89 m. If the time of one revolution is 0.94 s, the magnitude of the tension in the string (assuming uniform speed) when it is at the top is

asked by Eve on February 13, 2013
21. ## Chemistry

How many grams of KHP (204.22 g/mol) were present in container if 49.36 mL of 0.2264M NaOH were needed to reach the end point of a titration? I'm confused on the formula you would use for this.

asked by T on December 1, 2012
22. ## College Algebra

Let f(x) = . Find a formula for a function g whose graph is obtained from f by the given sequence of transformations. (1) shift left 3 units (2) vertical stretch by a factor of 2 (3) reflect across the x-axis

asked by Tiffany on April 10, 2017
23. ## Pre-Calculus

Find the values of x for which the line y=2x intersects the parabola y=(x-1)^2+1. So I set the equations equal to eachother, and solved for x using the quadratic formula. The solution I got was: x=3.41 and x=0.59. Could someone please check my work.

asked by Jon on September 20, 2010
24. ## Algebra II

Find the accumulated value of an investment of \$3000 at 9% compounded continuously for 3 years. Isn't the formula 3000e(0.09)x(3)??..which would be \$2,201.81...but its wrong?!!..any suggestions would be greatly appreciated

asked by Amber on April 27, 2009
25. ## math

Find the solution where x and y are integers to: 1/x + 1/y = 1/14 I can use a computer to get a list of solutions: 7, -14 10, -35 12, -84 13, -182 15, -210 16, 112 18, 63 21, 42 28, 28 but I'm having trouble solving this analytically and coming to a

asked by Sean on June 16, 2011
26. ## Math

Find the length of the side of the largest square nut that can be milled from a piece of round stock that the diameter is 15mm. Use the 45-45-90 degree formula to solve.

asked by Paco on May 4, 2013
27. ## MATH

1. Write a formula to express the relationship for: The number of cents, c, to be received from a one-dollar bill is equal to 100 decreased by the price of the article purchased, p, when p is less than \$1.00

asked by LILY on July 8, 2008
28. ## Algebra (variation)

A rectangular brass slave has a square base of side x cm, and height h cm, its weight, w kg, is given by the formula w=(3x^2 h)/10. How is w changed if x is trebled and h is halved? (with solution pls... tnx...)

asked by HELP HELP HELP MNHS on January 9, 2013
29. ## Algebra

you deposit 3500 in an account that pays 4.5% annual interest, compounded monthly. How long will it take for the balance to reach 5000? Use formula A= P[1+(r/n)]^(ny) and use knowledge of logarithms.

asked by Pat on August 7, 2013
30. ## calculus

The function f is continuous on the closed interval [0,6] and has values that are given in the table below. x |0|2|4|6 f(x)|4|K|8|12 The trapezoidal approximation for(the integral): 6 S f(x) dx 1 found with 3 subintervals of equal length is 52. What is the

asked by Kristin on May 2, 2011
31. ## Chem

Which of the following solutions of strong electrolytes contains the largest # of moles of chloride ions: 100.0 mL of 0.30 M AlCl3, 50.0 mL of0.60 M MgCl2, or 200.0 mL of 0.40M NaCl? What formula is used?

asked by Diana on February 18, 2009
32. ## Chemistry

Which molecule has the greatest average velocity at 100 degrees celsius. He, Cl2, Xe, O2, NO2 I used the root mean squared formula but I think I did it wrong. I got Xe as my answer. Is this correct?

asked by Hannah on January 13, 2012
33. ## calculus

assume that is the rate of change of the unit price of a commodity is proportional to the diference between the demand and the supply, so that dp/dt=k (D-S) where k is a constant of proportionalily. suppose that D=40-2p, S=5+3p, and P(0)=4. find a formula

asked by Anonymous on April 10, 2012
34. ## Miami trace

Chemistry. AN UNKNOwn gas has a pressure of 2.0, a volume of 15.0 L and a temperature of 348 Kelvin. The sample weighs 4.20 grams. What is its molecular weight. I am trying to find formula

asked by corey on November 30, 2015
35. ## math Ms Sue help??

Calculate the area of the trapezoid, which is not drawn to scale. Is this formula right? A = (5+4) x 11/2 =49.5 Paraell sides are 8 in and 11 in. top is 5 inch bottom is 4 in. Wtih two little boxes on each side. Please help me understand ?

asked by Tamara on April 22, 2013
36. ## precalculus

Help appreciated~ 1.Use the quadratic formula to determine when f(x)= x^2 +7x + 7 is greater than 0. Round your answer to two decimal places. a) x-1.21 b) x1 c) 1

asked by Jayson on December 19, 2011
37. ## Chemistry

What is the formula of a solid containing carbon that is a) molecular b)ionic c) network covalent d) metallic for these arent there more than one right answers? Also Describe the structural units in a) NaI b) N2 c) KO2 d) Au

asked by Anonymous on December 12, 2009
38. ## College Math

Brent invested \$5607 in an account at 2% compounded weekly. Calculate the total investment after 7 years. Please show me the steps. I tried using this formula but it did not work. A=P(1+r/n)^6x1

asked by Pat on December 16, 2014
39. ## Chemistry

Write the chemical formula and number of ions formed when the following electrolyte dissolves in water. Make sure to include appropriate states. K3PO4 = ??? Any help with this is greatly appreciated!

asked by Amanda on February 8, 2014
40. ## pre-cal

What are the steps for solving this? Directions Use the quadratic formula to solve the equation in the interval [0,2PI). Then use a graphing utility to approximate the angle x. 4cos^2x-4cosx-1=0 thanks.

asked by james on January 1, 2010
41. ## chemistry

A hydrocarbon,in volume of 25 L at 400K and a pressure of 3.40 atm reacts in an excess of oxygen to give 47.4G and 231.6g CO2.Determine the molecular formula for the compound?

asked by Silvester on February 23, 2012
42. ## chemistry

Based on the balanced equation 2Ba + O2 → 2BaO calculate the number of BaO formula units formed when 142 Ba atoms and 73 O2 molecules react?

asked by eng on February 12, 2010
43. ## VARIATION

A rectangular brass slave has a square base of side x cm, and height h cm, its weight, w kg, is given by the formula w=(3x^2 h)/10. How is w changed if x is trebled and h is halved? (with solution pls... tnx...)

asked by HELP HELP HELP MNHS on January 9, 2013
44. ## College Algebra

How long would it take for a ball dropped from the top of a 400 foot building to hit the ground? Round your answer to two decimal places Use gravity formula

asked by Heather on January 25, 2012
45. ## Physics

I have to find the Current created by earth as it circles the sun.through the formula I=(Q/delta t). Hint:It says think of the cross section of the earths orbit.How often does a charge pass through it.

asked by Jim on March 10, 2008
46. ## Physics

A baseball is thrown upward with a velocity of 15m/s. How fast is it moving after 2 seconds? I have no Idea how to begin and the formula he gave us isn't even related to the question at all. (V=vi+at)

asked by HelplessFool on September 26, 2014
47. ## Geometry

If the width and height of a rectangular prism are each shrunk to one seventh of the original size but the length remains the same, what is the formula to find the modified surface area?

asked by David on June 20, 2016
48. ## Math

Your bank pays 9% interest, compounded annually. Use the appropriate formula to find how much you should deposit now to yeild an annuity payment of \$800 at the END of each year, for 10 years?

asked by Ralph on November 16, 2014
49. ## college math

sam bought 1 of 250 tickets for \$2 in a raffle with the prize of \$400. Was \$2 fair price? Can someone show me the formula on how to get this answer. My text is super confusing.

asked by Lauren on December 1, 2009
50. ## algebra

the number N of state and federal inmates in millions during year x, where x greater than or equal to 2002 can be approximated by the following formula. N=0.05x-98.45 Determine the tear in which there were 1.7 million

asked by angel on February 1, 2013
51. ## Calculus II

Assume that the rate of change of the unit price of a commodity is propirtional to the difference between the demand and the supply, so that dp/dt = k(D-S) where k is a constant of proportionality. Suppose that D = 72-5p, S = 9 + 2P, and p(0) = 2. Find a

asked by Catherine on October 6, 2017
52. ## albebra

The answer is the easy part, but how do I express it in an algebraic formula? Ken purchased an investment property for 245,000 and sold it at a 12% loss. How much did he sell it for?

asked by mike on June 29, 2011
53. ## Physics

v(y)=v with letter y below normal line. "Explain why you can use the formula v(y)=g(t/2) to calculate the initial vertical velocity." My teacher claimed he explained the answer to this, but I didn't catch it. I would appreciate any help I get. THANKS!!!

asked by BlueEyedGrrl1738 on October 14, 2007
54. ## Chemistry

Alexander, who weighs 159 , decides to climb Mt. Krumpett, which is 5460 high. For his food supply, he decides to take nutrition bars. The label on the bars states that each 100- bar contains 10 of fat, 40 of protein, and 50 of carbohydrates.Alexander

asked by George on September 27, 2008
55. ## Chemistry

Mass (before reaction): test tube + HCl(aq) + stir bar + capsule 26.600 g Mass (after reaction): test tube + HCl(aq) + stir bar + capsule 25.300 g Volume of water displaced from the squirt bottle 148 mL Temperature of the CO2(g) 287.4 K Pressure (atm)

asked by Karina on October 21, 2012
56. ## Chemistry

We did a titration lab, and one of the post-lab questions says: "the manufacturer of the vinegar used in this experiment claims that the vinegar contains 5% acetic acid by weight. Use your results and a density of 1g/mL to determine if this claim is true

asked by Alexandra on October 14, 2015
57. ## Chemistry

We did a titration lab, and one of the post-lab questions says: "the manufacturer of the vinegar used in this experiment claims that the vinegar contains 5% acetic acid by weight. Use your results and a density of 1g/mL to determine if this claim is true

asked by Alex on October 14, 2015
58. ## statistics

Use this table to complete the tasks that follow it. Height (in inches) Frequency 50-52 5 53-55 8 56-58 12 59-61 13 62-64 11 Identify the class width. Identify the midpoint of the first class. Identify the class boundaries of the first class. Give the

asked by sandra on November 13, 2009
59. ## math

The number of bacteria in a culture is modeled by n(t)=1710e071t (a) The initial number of bacteria is (b) The relative rate of growth of this bacterium population is (c) The number of bacteria after 3 hours is (d) After how many hours will the number of

asked by someone on May 12, 2012
60. ## physics

A man (weighing 915 N) stands on a long railroad flatcar (weighing 2720 N) as it rolls at 18.5 m/s in the positive direction of an x axis, with negligible friction. Then the man runs along the flatcar in the negative x direction at 55.00 m/s relative to

asked by physics on July 21, 2010
61. ## sun ridge

as a diver descends below the surface of the ocean, she attaches air tanks to a long cable. the first tank is at 150 meters below the surface. the other tanks are attached at intervals of 250 meters below the surface. what integer represents the depth

asked by nathab on August 20, 2012
62. ## Math

he number of bacteria in a culture is modeled by n(t)=1710e071t (a) The initial number of bacteria is (b) The relative rate of growth of this bacterium population is (c) The number of bacteria after 3 hours is (d) After how many hours will the number of

asked by someone on May 12, 2012
63. ## math

Ed, Ethan and Nathan are playing a game. Ed has won11 rounds, Ethan has won 8 rounds, and Nathan has won 1 round. Write the relative frequency of Ed not winning a round as a percent. 45%? Is my Answer correct?

asked by Ed on March 9, 2010
64. ## physics

Three charges are fixed to an x, y coordinate system. A charge of +12 µC is on the y axis at y = +3.0 m. A charge of -14 µC is at the origin. Lastly, a charge of +50 µC is on the x axis at x = +3.0 m. Determine the magnitude and direction of the net

asked by Ann on January 21, 2007
65. ## physical science

if the maximum amount of water vapor in the air at 15 degrees c is 12.5 g/m^3, what is the actual amount of water vapor in the air if the relative humidity is 85.0%

asked by leeah on May 8, 2013
66. ## chemistry

Which of the following is true? A. Group 1 elements are more reactive than the group 2 elements because they have more valence to lose. B.Lithium is the least reactive element in group, because its valence electron is held more tightly than the others in

asked by Emiko on September 13, 2014
67. ## chemistry

The question asks, "Butanoic acid has a partition coeff of 3.0 when distributed b/t water and benzene. Find the formal concentration of butanoic acid in each phase when 100 mL of 0.10 M aqueous butanoic acid is extracted with 25 mL of benzene at pH 10.00."

asked by For Dr. Bob on November 15, 2009
68. ## Physics

A puck of mass 0.03 kg slides across rough ice, experiencing a frictional force of 0.2 N. If it was moving at 36 m/s when I hit the ice patch, A) How long did it take to stop? B) What was the length of the ice patch? I know I have initial velocity, mass

asked by Cali on October 24, 2015
69. ## physics

A particular tower clock similar to Big Ben has an hour hand 2.70 m long with a mass of 62.0 kg, and a minute hand 4.80 m long with a mass of 100 kg. Calculate the total rotational kinetic energy of the two hands about the axis of rotation. (You may model

asked by mary on April 16, 2011

If I went tubing with my little sister, and I have a larger mass, why would we both reach, in terms of energy, the bottom of the hill at the same time; Originally I thought because we would both be accerlerating at the same rate but that doesn't explain

asked by Sheila on January 11, 2011

A small spherical insulator of mass 8.96 10-2 kg and charge +0.600 μC is hung by a thread of negligible mass. A charge of −0.900 μC is held 0.150 m away from the sphere and directly to the right of it, so the thread makes an angle θ with the vertical

asked by Chelsea on January 28, 2013
72. ## Physics

Three uniform spheres are located at the corners of an equilateral triangle. Each side of the triangle has a length of 2.40 m. Two of the spheres have a mass of 3.40 kg each. The third sphere (mass unknown) is released from rest. Considering only the

asked by Kathy on November 6, 2014
73. ## Physics

A satellite used in a cellular telephone network has a mass of 2160 kg and is in a circular orbit at a height of 670 km above the surface of the earth. What is the gravitational force Fgrav on the satellite? Take the gravitational constant to be =

asked by Joe on April 12, 2012
74. ## Physics

Two blocks move along a linear path on a nearly frictionless air track. One block, of mass 0.120 kg, initially moves to the right at a speed of 4.90 m/s, while the second block, of mass 0.240 kg, is initially to the left of the first block and moving to

asked by Pat on October 18, 2012
75. ## physics

A block of mass 4.44 kg lies on a frictionless horizontal surface. The block is connected by a cord passing over a pulley to another block of mass 6.55kg which hangs in the air , as shown above. Assume the cord to be light (massless and weightless) and

asked by Shaun on October 5, 2013
76. ## Physics

Calculate the magnitude of each force acting on the sleigh. The friction force has a magnitude of 4000N. The sleigh has a mass of 200kg. The people and their luggage have a mass of 300kg. The harness makes a 20-degree angle with the horizontal. Assume the

asked by Cheese on October 17, 2018
77. ## Physic

A massless rope is wrapped around a hollow cylinder of radius 23 cm whose central axis is fixed in a horizontal position. A mass of 3.8 kg hangs from the rope and, starting from rest, moves 137 cm in 2.2 s. What is the mass of the cylinder? (Answer: 62kg)

asked by Anonymous on May 6, 2014
78. ## physics

Two blocks move along a linear path on a nearly frictionless air track. One block, of mass 0.104 kg, initially moves to the right at a speed of 4.70 m/s, while the second block, of mass 0.208 kg, is initially to the left of the first block and moving to

asked by Anthony on November 29, 2012
79. ## Physics

An object of mass m1 is placed on an inclined plane (angle theta above the horizontal) is connected by a string going over a pulley to a hanging object of mass m2. Determine the acceleration of the system if there is no friction between object 1 and the

asked by Anna on October 23, 2016
80. ## physics

Two objects of mass 1.00 × 103 kg each are a distance of 4.00 m from each other. If the center of one mass is regarded as being at the origin of the x-axis, and the other is centered at 4.00 m along the x-axis, what is the magnitude of the gravitational

asked by Denise on December 7, 2011
81. ## Physics

A block of wood of mass 1.2kg initially at rest is free to slide on a horizontal surface. A bullet of mass 100g travelling at a speed of 780ms^-1 is fired horizontally at the block and becomes embedded in it. Calculate the speed the block and bullet move

asked by Sam on October 8, 2014
82. ## College/education class

What are the most effective and ineffective uses of objective assessments for instructors and learners? What is your view on the relative advantages and disadvantages of using objective tests? How might you incorporate objective assessments in your

asked by Cathy on April 21, 2015
83. ## As physics

change in mass___total charge_____no of elect for each of______delivered by_______rons pass objects_________circuit(eachtest)_(thrcathod) _____________________________________________0.14____________144__________9 x 10^20___

asked by cylinder on December 12, 2017
84. ## physics

An airplane is heading due south at a speed of 515 km/h. A wind begins blowing from the southwest at a speed of 100 km/h (average). (Hint: First draw a diagram.) (a) What is the velocity (magnitude and direction) of the plane relative to the ground?

asked by DJ on September 26, 2009
85. ## Math Precal

An airplane has an airspeed of 650 km/h bearing 15 degrees north of west. The wind velocity of is 19 km/h in the direction of 30 degrees east of south. Find the resultant vector representing the path of the plane relative to the ground. What is the ground

asked by chris on September 6, 2016
86. ## Physics - HELP

An airplane is heading due south at a speed of 515 km/h. A wind begins blowing from the southwest at a speed of 100 km/h (average). (Hint: First draw a diagram.) (a) What is the velocity (magnitude and direction) of the plane relative to the ground?

asked by Anonymous on September 27, 2009
87. ## Physics

Two physical pendulums (not simple pendulums) are made from meter sticks that are suspended from the ceiling at one end. The sticks are uniform and are identical in all respects, except that one is made of wood (mass=0.34 kg) and the other of metal

asked by Anonymous on November 7, 2011
88. ## Science - Climate change

What does this paragraph mean? Why is the air sinking over the desert and how does it rise with rain systems thousands of kilometers away? In fact, it has been calculated that the Sahara Desert actually loses more infrared radiation than it gains solar

asked by Jasmine373 on December 13, 2017
89. ## Science - Climate change

What does this paragraph mean? Why is the air sinking over the desert and how does it rise with rain systems thousands of kilometers away? In fact, it has been calculated that the Sahara Desert actually loses more infrared radiation than it gains solar

asked by Jasmine373 on December 12, 2017
90. ## Physics

A block of mass 3m is placed on a frictionless horizontal surface, and a second block of mass m is placed on top of the first block. The surfaces of the blocks are rough. A constant force of magnitude F is applied to the first block. Assume that the upper

asked by Oyster on September 24, 2012
91. ## Chemistry

I don't understand how to work out this problem, non the less where to begin with any calculations. Help!! Three of the strongest lines in the He+ ion spectrum are observed at the following wavelength: (1) 121.57 nm (2) 164.12 nm (3) 468.90 nm Find the

asked by Very Confused :( on November 18, 2010
92. ## temperature change

What is the temperature change when 9.8 g of KNO3( with 34.9 kJ/mol enthaply of solution) is dissolved in 150 g of water? Assume that the specific heat capacity is 4.18 J/K*g. Answer in celcius. So far I have the Q= ^T*m*s but i don't know what numbers go

asked by ty on May 29, 2007
93. ## Physics

A small disc of mass 0.7 kg is attached to a string on a frictionless table top. The string passes through a small hole in the centre of the table and is attached to a mass of 0.68 kg suspended below the table and above the floor. The disc can thus move in

asked by Catherine on April 21, 2016
94. ## physics

A certain force gives an object of mass m1 an acceleration of 13.0 m/s2 and an object of mass m2 an acceleration of 2.10 m/s2. What acceleration would the force give to an object of mass (b)m2 + m1? is b) equal to 2.1?

asked by koraile on October 9, 2010
95. ## physics

A capacitor is formed of two identical coaxial disks of diameter 28cm. The distance d between the disks is adjustable . Calculate the capacitance of this capacitor at d=5mm. What becomes the value of this capacitance if a glass sheet 5mm thick is inserted

asked by sandra on April 13, 2016
96. ## Art

I left out these last sentences on grammar.Thank you, Writeacher. 1) If the machine stops, you press this button. Incorrect: if the machine stops, you will press this button. 2) Complete the following sentences with who, which, whose. Write the relative

asked by John on July 3, 2012
97. ## calculus

Consider a differentiable functionf having domain all positive real numbers, and for which it is known that f'(x)=(4-x)^-3 for x.0 a. find the x-coordinate of the critical point f. DEtermine whether the point is a relative maximum or minomum, or neither

asked by cher on February 26, 2012
98. ## Chemistry HELP

A 0.75–L bottle is cleaned, dried, and closed in a room where the air is 22oC and 44% relative humidity (that is, the water vapour in the air is 0.44 of the equilibrium vapour pressure at 22oC). The bottle is brought outside and stored at 0.0oC. just

asked by xavier on December 11, 2012
99. ## Physics

An explorer in the dense jungles of equatorial Africa leaves his hut. He takes 43 steps at an angle 45north of east, then 80 steps at an angle 60 north of west, then 51 steps due south. Assume his steps all have equal length. Save him from becoming

asked by Allison on April 7, 2011
100. ## chemistry

How do I determine the mass (in g) of a sucrose solution that contains 12g of sucrose and is 4.1% sucrose by mass?

asked by What? on December 4, 2012