# Questions Asked onFebruary 1, 2015

1. ## Physics

You are given two unknown point charges, Q1 and Q2. At a point on the line joining them, one-third of the way from Q1 to Q2 the electric field is zero . What is the ratio Q1/Q2?

2. ## Chemistry

The formation constant of [M(CN)4]^-2 is 7.70 × 10^16, where M is a generic metal. A 0.150-mole quantity of M(NO3)2 is added to a liter of 0.840 M NaCN solution. What is the concentration of M2 ions at equilibrium?

3. ## physics

You are constructing a mobile out of 5 identical toy helicopters, each of mass m = 25.3 g, 4 identical sticks (each length l = 21.2 cm, and negligible mass), and thin string of negligible mass. The distance from the left-hand side of each stick to the

4. ## Chemistry

The age of wine can be determined by measuring the trace amount of radioactive tritium, 3H, present in a sample. Tritium is formed from hydrogen in water vapor in the upper atmosphere by cosmic bombardment, so all naturally ocurring water contains a small

5. ## physics

Water is lifted from a well of depth 50m. If mass of water is 20kg and that of the rope is 0.2kg per metre the amount of work done is

6. ## Physics

A golfer, standing on a fairway, hits a shot to a green that is elevated 5.50 m above the point where she is standing. The ball leaves her club at an angle of 37.0° above the ground, with a speed of 31.1 m/s. Find the time that the ball is in the air

7. ## physics

a projectile with a horizontal component of 13m/s and a vertical component of 18 m/s would have an overall velocity of m/s??? at and angle of ?? above the horizontal. Can you please help me fill in the two blanks thank you

8. ## Not a subject for course-off topic question

Hello, I don't know where else to post the question but since this website has many teachers helping students and probably the appropriate place to ask. ----------------------------------------- So today I was just thinking about the past in my life and

9. ## Math

Will, Micah, and Sue went to dinner. Will paid 1/3 of the dinner bill. Micah and Sue paid in the ratio 2:5. If Sue paid \$6 more than will, how much di the dinner cost?

There are 112 seats in the school auditorium. There are 7 seats in each row. There are 70 people seated, filling up full rows of seats. How many rows are empty? We added and got 189 then divided by 3. But it doesn't look correct. How do we show the work?

11. ## Chemistry

Estimate the rate of the reaction, H2SeO3 + 6I- + 4H+ Se + 2I3- + 3H2O given that the rate law for the reaction at 0°C is rate = (5.0 × 10^5 L5mol-5s-1)[H2SeO3][I-]^3[H+]^2 The reactant concentrations are [H2SeO3] = 1.5 × 10^-2 M, [I-] = 2.4 × 10^-3 M,

12. ## Chemistry

Determine the molarity of a 15.0 % by mass Hydrogen Peroxide solution. The density of Hydrogen Peroxide is 1.054 g/mL. The 15.0% by mass can be broken apart into 15.0 g Hydrogen Peroxide and 100.0 g solution. Use the density of Hydrogen Peroxide solution

13. ## Physics

In exercise physiology studies, it is sometimes important to determine the location of a person's center of gravity. This can be done with the arrangement shown in the figure below. A light plank rests on two scales that read Fg1 = 440 N and Fg2 = 320 N.

14. ## Math

Carlos has 32 iris bulbs and 40 tulip bulbs to plant. He wants to plant them in rows with one type of bulb in each row. He wants all of the rows to have the same number of bulbs. The greatest number of bulbs he can plant in each row is?

15. ## Chemistry

Estimate the rate of the reaction, H2SeO3 + 6I^- + 4H^+ --> Se + 2I3^- + 3H2O given that the rate law for the reaction at 0°C is rate = (5.0 × 105 L5mol-5s-1)[H2SeO3][I-]^3[H+]^2 The reactant concentrations are: [H2SeO3] = 1.5 × 10-2 M [I-] = 2.4 ×

16. ## Social Studies

witch result of the compromise of 1850 did not benefit the north? a-the fugitive slave law b-californias admittance tt he union c-ending the slave trade in the district of columbia d-new mexico not being designated as a slavery trade Is it a?

17. ## chemistry

what statements are true for the standard entropy change for the conversion of ozone to oxygen? Select all the apply? 2 O_3 (g) > 3 O_2 (g) Molecular factors predict an increase in entropy Stoichiometric factors predict a decrease in entropy. Molecular

18. ## Political Science

In Marbury v. Madison, the Supreme Court established the principle of constitutional review by? I am seconding guessing myself on my answer so can you point me the right direction is it: claiming that Section 13 of the 1789 Judiciary Act providing that the

19. ## Math

I am a parent and need help with this problem so I can show my daughter how to complete. A recipe calls for 8 cups of flour. The amount of flour is 10 cups less than twice the amount of milk. Write and solve an equation to find the amount of milk in the

20. ## Math

You have 100 pieces of candy in five bowls. The sum of candy in bowl a and bowl b is 30 pieces. The sum of candy in bowl b and c is 36 pieces. The sum of candy in bowl c and bowl d is 49 pieces of candy. The sum of bowl d and bowl e is 47 pieces of candy.

21. ## physics

a copper cylinder has a radius of 2.5 cm and a length of 5.6 cm at 20 degree Celsius. The rod is heated until its temperature is 85 degree Celsius. Find the density at 85 degree Celsius.

Jake wants to distribute 543 marbles equally among 7 of his friends. In what place is the first digit of the quotient?

A park guide plans the swan boat rides for 40 people. Each boat can carry 6 people at a time. What is the best way to interpret the remainder of 40/6 in this situation so that everyone gets a ride? How do I show the work?

24. ## chemistry

5.6g of organic compound on burning with exess oxygen gave 17.6g of CO2 and 7.2g of H2O .the organic compound

25. ## algebra

Assume that the growth of the membership of a country club was linear from 1996 to 2000 with a membership of 214 in 1996 and a rate of growth of 730 per year. write an equation for the membership P of this country club as a function of the member of years

26. ## geometry

A model is made of a car. The car is 7 feet long, and the model is 16 inches long. What is the ratio of the length of the car to the length of the model? 4:21 7:16 16:7 21:4 I think it is C.

27. ## math

The measures of two complementary angles are in the ratio 1:4. What are the degree measures of the two angles? 18° and 72° 22.5° and 67.5° 36° and 144° 45° and 135°

28. ## writing

Need help with Achieving a Readable Style. Memorandum TO: Jerry Bradshaw DATE: March 29, 2011 FROM: Bill Jones SUBJECT: The Best Approaches in Alternative Fuel Research Purpose Alternative fuels are becoming an important area of research. There are two

29. ## Math problems

a farmer plants .6 0f a field with peanuts. the field is 5.6 acres in size. how many acres are planted with peanuts

30. ## L.A.

To which sense do the following lines from "Grandma Ling" appeal? and there I faced my five foot height, sturdy legs and feet square forehead, high cheeks, and wide-set eyes A. hearing B.taste C. sight D. smell 2. which word best describes the tone of the

31. ## georgia state history

Which statement BEST describes the power of government provided by the Articles of Confederation?

32. ## chemistry

Please help?! if 600 mL of a 0.04M KCl solution is mixed with 50mL of a 0.03M Na2SO4 solution, will a precipitate be formed? Explain your reasoning and/or show all calculations?

33. ## Math 20-1

The most convenient test point to use to determine if the points in a region defined by y

34. ## Science

A swimmer that pushes the water back with feet and arms what is the reaction force? What is the action force? What will happen to the movement of the swimmer as they push the water back? If the swimmer exerts 5 n of force on the water how much force does

35. ## Thermodynamics

A 196-g aluminum calorimeter contains 530 g of water at 19.8° C. Aluminum shot with a mass equal to 273 g is heated to 100.0° C and is then placed in the calorimeter. Find the final temperature of the system, assuming that there is no heat transfer to

36. ## physics

a car has a mass of 820 kg. It starts from rest and travels 41 m in 3.0s. What is the net force applied to the car?

37. ## Geometry

Solve each equation below by completing the square: 1) x^2 + 6x = 16 My steps: x^2 + 6x - 16 = 0 (x - 2 )(x + 8) x = 2, -8 I set it to zero and factored it out. But my teacher said not do it that way and do it by dividing by 2 but I don't understand how

38. ## Physics

Eddie the Eagle, British Olympic ski jumper, is attempting his most mediocre jump yet. After leaving the end of the ski ramp, he lands downhill at a point that is displaced 62.2 m horizontally from the edge of the ramp. His velocity just before landing is

39. ## jiskha review

Hello my name is am i am making a review on this site. Jiskha is a wonderful, excellent and spectacular site to go to for school help. Jiskha helped me birng my grade up from a 60 to an 80. If I asked a question and i had a quick response. Jiskha does not

40. ## chemistry

how many moles are present in 2.45 x 10²³ molecules CH₄?

41. ## Political Science

If the Supreme Court were to rule that gay marriage is a fundamental right, under the Equal Protection Clause of the Fourteenth Amendment, that would mean?

42. ## Political Science

In Gibbons v. Ogden, the Supreme Court held that?

43. ## Physics

A projectile is launched with an initial speed V0. At its highest point, the projectile's speed is V0/2 . What was the launch angle above the horizontal? (in deg)

44. ## Physics

A(n) 0.42 kg softball is pitched at a speed of 12 m/s. The batter hits it back directly at the pitcher at a speed of 27 m/s. The bat acts on the ball for 0.016 s. What is the magnitude of the impulse imparted by the bat to the ball? Answer in units of N ·

45. ## Algebra

The difference of two numbers is 12. The sum of the larger number and 3 times the smaller number is 20. Find the larger number.

46. ## science

On a frictionless air track, cart A hits cart B moving at a velocity of 2 miles per second to the right. Which answer predicts what will happen?

47. ## Algebra 2

Solve square root of 79-5x =6x+4 (Keep your answers in simplified improper fraction form)

48. ## math

ram weighs 45kg and mary weighs m kg. write an expression for their combined weight.

49. ## Chemistry

Determine the mass (in grams) of Malonic Acid (C3H4O4) present in 10.0 mL of a 0.200 M solution.

50. ## Help with Psychology

One student conducts a study on the relationship between people’s level of extroversion and the number of close friends they have. He computes Pearson’s r, which comes out to be – 1.70. Which of the following is most clearly true? A. The relationship

51. ## science

Calculate the molarity of a solution which contains 6.456g of Na2CO3 dissolved in 250.0 ml of solution.

52. ## Algebra

The Manhattan Island cruise Company sold 57 tickets for its Circle-the -Island Cruise. Each adult had to pay \$22 for the cruise and each child had to pay \$10. If the company's total receipts were \$774. How many children went on the cruise?

53. ## chemistry

In an acid-base titration, 33.12ml of 0.1177 M H2C2O4 was titrated with 0.2146 M NaOH to the end point. What volume of the NaOH solution was used?

54. ## Science

jellyfish sometime squeeze in the size of their bodies. this pushes a stream of water from the back end of their bodies. according to newtons third law of motion, how will this behavior affect the movement of the jellyfish? a. The jellyfish will move

55. ## chemistry II

What is the molarity of a solution of acetic acid if 35.00mL is titrated to the end point with 68.20ml of 0.750M KOH? What is the percentage by mass of acetic acid solution? The density of acetic acid is 1.06 g/ml

56. ## essay

feeling healthy

57. ## essay

how to prepare for a job

58. ## Chemistry

Determine the mass (in grams) of a 1% solution of Manganese(II) Sulfate that will contain 0.0403 grams.

59. ## Chemistry

Determine the moles of Potassium Iodate present in a 0.267 m Potassium Iodate solution assuming you have 1 kg of solvent (H2O) present.

60. ## Healthcare Finance

You are considering starting a walk-in clinic. Your financial projections for the first year of operations are as follows: Revenues (10,000 visits) \$400,000 Wages and benefits 220,000 Rent 5,000 Depreciation 30,000 Utilities 2,500 Medical Supplies 50,000

61. ## Healthcare finance

You are considering starting a walk-in clinic. Your financial projections for the first year of operations are as follows: Revenues (10,000 visits) \$400,000 Wages and benefits 220,000 Rent 5,000 Depreciation 30,000 Utilities 2,500 Medical Supplies 50,000

62. ## Chemistry

If you had a mixture of sodium chloride and sodium bromide, could you use its conductance to determine the concentration of each solute? Explain.

63. ## english

hi, i am not good at english literature at all, i want a 5 pages story on micheal faryn novel spies. it is about details on how life was for civilians at time of world war 2. assingment should include information on rationing evacation blackoutand gas

64. ## Healthcare finance

You are considering starting a walk-in clinic. Your financial projections for the first year of operations are as follows: Revenues (10,000 visits) \$400,000 Wages and benefits 220,000 Rent 5,000 Depreciation 30,000 Utilities 2,500 Medical Supplies 50,000

65. ## chemistry

A sample of 131 I was purified and then analyzed for iodine content. It was found that the sample was 99.8% pure. 25 hours later the sample was tested again and it was found that the sample was now just 78.2% pure. What is the half - life of 131 I?

66. ## Chemistry

The primary route for making copper iodide is by reacting potassium iodide with copper sulfate: 2CuSO4 + 4KI + 2Na2S2O3 ==> 2CuI + 2K2SO4 + 2NaI + Na2S4O6 Identify potential green chemistry and green engineering challenges of the reaction.

67. ## Science

suppose a male mouse is Bb and a female is bb. What percent of the mice offspring from these two mice would you expect to have black fur?

68. ## physics

A block of mass 3.17 kg is hanging from a rope. The tension in the rope is 12.9 N, pulling upward on the block. What is the magnitude and direction of the acceleration of the block?

69. ## math

The sum of the first 10 term of an arithmetic sequence is 145 and the sum of the fourth and ninth term is five times the third term. Determine the first term and constant difference.

70. ## Algebra

A pizza chef made and sold a total of 100 pizzas that were either cheese or pepperoni. The cheese pizza's were \$9 each and the pepperoni pizzas sold for \$11 each. If the total receipts were \$1026, how many pepperoni pizzas did he sell?

71. ## chemistry

The following experimental data were obtained for the reaction; 2 NO + 2 H2 ¡æ N2+ 2 H2O Rate/10-5M/s [NO]/10-2M [H2]/10-2M 0.50 0.50 0.20 2.00 1.00 0.20 0.25 0.25 0.40 Write a rate law in agreement with the data. Rate = What is the value and units of

72. ## Chemistry Rate Reaction

What is the rate of the reaction: H2SeO3 + 6I- + 4H+ Se + 2I3- + 3H2O given that the rate law for the reaction at 0°C is rate = (5.0 × 10^5 L5mol-5s-1)[H2SeO3][I-]^3[H+]^2 The reactant concentrations are [H2SeO3] = 1.5 × 10^-2 M, [I-] = 2.4 × 10^-3 M,

73. ## Setswana

Kwala Tlhamo ka setlhogo sa "Setshaba se se sa somareleng puo ya sona se tshwana le setlharr se senang medi

74. ## chem

Calculate the wave length in amsrong unit of the first spectra line in the bama series for Li2 take R= 109766rcm i tried using this formular 1/lander = Z^2R(1/n1^2-1/n2^2) then Z is 3, n1 = 2 n2= 3

75. ## Math

A hardware store will deliver up to 6 items for a \$25 delivery charge. There is a charge of \$4 for each additional item to be delivered. a. Write a piecewise function for the cost of having x items delivered. b. What is the charge to have 14 items

76. ## Math

A jug holds 3.75 liters of water. How many millimeters can fit into the bottle

77. ## Substitution

There are 155 people at the basketball game. Tickets for the game are \$2.50 for students and \$4 for adults. If the total ticket money received is \$492.50 how many students and adults attended the game?

78. ## Physics

A 6.5-kg bowling ball thrown with a speed of 5.4 m/!@#\$%^&s a stationary 1.75-kg pin. What is the velocity of each object? Assume that the coefficient of restitution is 0.75.

79. ## Science

Hello please help me with another question! - One fruit fly is heterozygous for long wings, and another fruit fly is homozygous for short wings. Long wings are dominant to short wings. Using a punnett square, find out what percent of the offspring are

80. ## statisics

A major hurricane with wind speeds of 111 per hour or greater. During the last century the mean number of major hurricanes to strike a certain country mainland per year was about 0.45. Find the probability that in a given year exactly one major hurricane

81. ## Maths Problem

I still don't get it..please help, The average of two numbers is 81. The difference between the number is 26. What is the smaller number?

82. ## Math

Harrison says that to convert a mixed number to a fraction greater than 1, he thinks of it this way: 4 2/5= 5/5 + 5/5 + 5/5 + 5/5 + 2/5 = 22/5. Does this strategy work? Explain

83. ## Physics

Suppose you have a 5nC charge T the origin and a 2nC charge at x=5m. Find the location on the x axis where the electric field is 0. (Find finite coordinate location)

84. ## Math

I am a parent trying help my son, who has trouble understanding and remembering how to work his math. I never had this math, so it is hard for me to explain it. If I see it worked out. Then I can explain it, (I Think) here is the problems. A ball is tossed

85. ## PHYSICS

without air resistance maximum range of projectile is obtained with an angle of ???? Can you please fill in the blank THANK YOU

Amanda and her four sisters divided 1,021 stickers equally. About how many stickers would each girl receive? How do I show my work?

87. ## concept development

Choose the best example of a specific task assessment. A. Give a child two groups of marbles: a group of five and a group of eight. Then ask the child which group has more marbles. B. Ask a five-year-old child to clean the play area in 10 minutes. C. Ask a

88. ## Math

Proove that: a)2^(1/2) is not rational. b) prove that 2^(1/3) is not rational. I have managed to prove the first part, but i am stuck on the second can someone give me an hint please?

89. ## Algebra

Tom has a \$20 bill, a \$10 bill, a \$5 bill, and \$1 bill. List the total costs possible for items he could buy if he receives no change.

The school choir has 48 singers with high voices, 53 singers with middle voices, and 39 singers with low voices. the singers stand in 4 equal rows at concerts. How many singers are in each row? How do I show my work for this?

91. ## math

How many revolutions does a merry go round make during 6,5 min if its average rotation speed is 2,4 r.p.m?

92. ## Precal

Is y=-2 x 5^x a monomial function?

93. ## physics

Using the following number: 26,802 In 4 significant figures, this number would be Answer. In 3 significant figures, this number would be Answer. In 2 significant figures, this number would be Answer. In 1 significant figure, this number would b

94. ## Math

Write the equivalent fraction. 6 2/5, 3 7/10

95. ## Algebra

I am a parent trying help my son, who has trouble understanding and remembering how to work his math. I never had this math, so it is hard for me to explain it. If I see it worked out. Then I can explain it, (I, Think) here is the problems. A ball is

96. ## Physics

1) If = 2.0 cm, due E and = 5.0 cm, due W Determine: a) R = -A + 2B b) V = - 2A - B c) F = 3A - B My Answers R= 8, V= -1, F= 1 Is this correct and how do you know when direction it's going to be?

97. ## Spanish Help

Hi! Can someone check my answers to make sure that I am doing these right? Thanks so much! :) Directions: Match the command to the correct Spanish command. 1.) Listen! (friend) 2.) Listen! (you guys) 3.) Don’t listen! (stranger) 4.) Don’t listen!

98. ## phy

5. A boat capable of making 9.0 km/hr in still water is travelling upstream in a river flowing at 4 km/h. An object lost overboard is not missed for 30 minutes. (a) If the boat is then turned around, how long will it take to overtake the floating lost

99. ## Physics

Riding in an elevator, a man notices that he feel heavier or lighter based when the elevator speeds up or slows down. He stands on a bathroom scale in the elevator to take some measurements. Assume that his mass is 85 kg. a. What is this man’s weight

100. ## Genetics

One fruit fly is heterozygous for long wings, and another fruit fly is homozygous for short wings. Long wings are dominant to short wings. Using a punnett square, find out what percent of the offspring are expected to have short wings.

101. ## Chem

a solution is prepared by dissolving 0.47 g of a solute in 12.7 g of cyclohexane what is the boiling point

102. ## science

Why is graphite considered an element?

103. ## Chem

a solution is prepared by dissolving 0.47 g of a solute in 12.7 g of cyclohexane what is the freezing point change

104. ## math

x_1=3/2, x_(n+1)=3/(4-x_n) prove that the series x_n converges and find its limit.

105. ## Math

.85km/s=m/min

106. ## physics

A hammer falls from a scaffold on a building 50.0 m above the ground. Find its speed as it hits the ground.

108. ## math

Thom has a scale model of his car . The scale is 1:12 . If the actual car has 16-inch weeks,what size are the wheels on the scale model?

109. ## writing

memorandum help. help to make this better readable for the viewer. Purpose Alternative fuels are becoming an important area of research. There are two main reasons researchers are looking for a new and reliable fuel source. The first is to combat the

110. ## fundamental concept and skills

Which approach to literacy best connects mathematics and science to the real world? A. Balanced reading B. Phonics C. Whole language D. Structured reading c.

br+bv+ry+vy

112. ## English

Posted by rfvv on Wednesday, January 28, 2015 at 7:45pm. 1. I wish I were good at ja dance. 2. I wish I were good at ja dances. ------------- Which on is grammatical? English - Ms. Sue, Wednesday, January 28, 2015 at 7:48pm Sorry -- but I don't know what

113. ## CHEM

what is the mass percentage if you dissolve 0.659 mol of citric acid, C6H8O7, in 1.00 kg of water.

114. ## statistics

A professor gave an aptitude test to a class of psychology students and computed the mean, median, and mode for the test scores. Which of the following statements cannot be an accurate description of the scores? -All of the above statements are false. -The

115. ## physics

A swimmer can swim 1.7 mph in still water. She decides to swim upsteam against the current which is 0.7 mph. It will take the swimmer ___ hours to travel 8 miles as measured by a person standing on the river bank.

116. ## Chemistry

Determine the number of grams of Potassium Iodate present in 10.0 g of a 0.267 m Potassium Iodate solution.

117. ## Physics

A cannonball is shot upwards with a total velocity of 61.0 m/s at an angle of 45 degrees from the horizontal. What will its total velocity be when it has moved 345 m horizontally from where it started?

118. ## FIN370

You are considering investing in a security that will pay you \$1,000 in 30 years. If the appropriate discount rate is 10 percent, what is the present value of this investment?

119. ## physics

A(n) 0.42 kg softball is pitched at a speed of 12 m/s. The batter hits it back directly at the pitcher at a speed of 27 m/s. The bat acts on the ball for 0.016 s. What is the magnitude of the impulse imparted by the bat to the ball? Answer in units of N ·

120. ## English

move-to know how others feel and why feel that way ---------------- Is the definition of "move" "to know...."? Is the definition grammatical? eg. His speech moved people in the hall. English - Writeacher, Saturday, January 31, 2015 at 12:31am No, in that

121. ## Physics

In a particular crash test, an automobile of mass 1295 kg collides with a wall and bounces back off the wall. The x components of the initial and final speeds of the automobile are 25 m/s and 1.5 m/s, respectively. If the collision lasts for 0.11 s, find

Why is soda in an unopened bottle a homogenous mixture?

123. ## English

* move as in: his speech moved many people in the conference. 1.to know how others feel and why feel that way 2. to cause somebody to have strong feelings, especially of sympathy or sadness (from a dictionary) ------------------------ I found the

124. ## mathematical literacy,business studies and tourism

What job field could I get from those subjects above?

125. ## georgia state history

Why did Augusta, Columbus, Macon, and Milledgeville become early centers of commerce in Georgia?

126. ## Physics 131

A -2.72 ìC charge is placed at the center of a conducting spherical shell, and a total charge of +6.35 ìC is placed on the shell itself. Calculate the total charge on the outer surface of the conductor.

127. ## physics

A friend plays an A note (440 Hz) on her piccolo while running towards you at 40 m/s. What frequency do you hear just before she runs into you? -I am not sure where to start on this problem. I wrote down the givens: fs=440 hz, vs=40 m/s, v=343 m/s. and I'm

128. ## physics

An astronaut visits a moon of Saturn, and decides to measure the accel. of gravity. He ties a rock (m=2 kg) to a rope (1.25 m), pulls the rock back 10 degrees, and releases it into simple harmonic motion. What is the accel due to gravity on the moon? (*I

129. ## physics

Imagine a grandfather clock. When the clock swings all the way to the right it 'ticks', when it swings all the way to the left it 'rocks'. If you wanted the time between the tocks and ticks, what length should the pendulum be? And, if you took the pendulum

130. ## science

An astronaut visits a moon of Saturn, and decides to measure the accel. of gravity. He ties a rock (m=2 kg) to a rope (1.25 m), pulls the rock back 10 degrees, and releases it into simple harmonic motion. What is the accel due to gravity on the moon? I

131. ## Physics

A spring fixed to a wall is attached to a 6 kg block of wood on the other end. The block rests on a frictionless surface. The spring with spring constant 100 N/m is compressed by 0.1 m and releases. With what frequency and period will the block/spring

132. ## English

What is the English word for this device on which a smartphone can be put so that people can watch videos on the phone?

133. ## physics

The effective k of the diving board shown here is 1675 N/m. A heavy diver is bouncing up and down at the end of the diving board. With what frequency does he bounce up and down? How long does it take for him to complete one bounce (up and down)? What is

135. ## Intermediate College Algebra

The larger of two numbers is ten more than twice the smaller number. The sum of the numbers is forty. Find each number.

136. ## History

The judicial branch has the power to try criminal cases by ____ I don't have any options, and I am not sure.

137. ## English

Can you check my answers to see if they are right and if not, help me on it? These questions begin with the paragraph starting with "Now was heard again the clangor of music ...." 1. In the first two paragraphs, the narrator conveys his mood of the

138. ## Physics

An object fired at an angle of 31.9° above the horizontal takes 2.55 s to travel the last 15.5 m of its vertical distance and the last 10.5 m of its horizontal distance. With what speed was the object launched? (Note: This problem does not stipulate that

139. ## Physics

A batter hits a baseball so that it leaves the bat with initial speed of 40 m/s, at an angle of 60°. Tom Brady throws an incomplete pass at an initial speed of ~ 60 miles/hour (mph). When the ball was released, it’s initial velocity made an angle of

140. ## Criminal Law

Summarize all of the steps between arrest, pre-trial, trial, and appeals (both state and federal appeal possibilities). Explain the contingencies for each stage of the proceedings and address all possible outcomes. Analyze how constitutional protections

141. ## physics

a particle is subjected to two displacement as follows: 30m to the northeast and 40m to northwest. what must be third displacement if the particle is to end up at the starting point

142. ## Physics

Three vectors of lengths A = 45.6, B = 24.2, and C = 30.4. The angles are θa = 29.6° and θb = 57.5°, and C points along the negative y-axis. Determine the length of the vector A - C. Calculate the angle of this vector. Determine the length of the

143. ## Algebra

find the slope of a line that is perpendicular to the line containing the points (-2,-1) and (2,3) a.m= -2 b.m= 2 c.m= -1/2 d.m= -1

144. ## Math 20-1

The length of a rectangle is 5 cm more than its width. What are the possible dimensions of the rectangle if the area must be at least 84 cm^2 ? (2 marks)

145. ## Economy

What is the cost of producing 100 units of output for a firm with a production function given by F(k,l)=10(min(2k,l))^0.5? Assume that r=20 \$/unit and w=10 \$/unit

146. ## chemistry

Stuck on this questions ?! please help The solubility of barium sulphate, BaSO4, is 2.4 x 10-4 g/100 mL of solution. Calculate the Ksp of this solution.

147. ## Economy

Consider a competitive firm that can sell its products at a price of p=10 \$/unit. It's variable cost function is given by VC(q)=q^2/1000, and it has SFC=FC=\$1000. What is the amount supplied by the firm?

148. ## Economy

Consider a competitive firm with a total cost function given by TC(q)=q^2/1000. Suppose that, in order to incentivize higher production, the government decides to refund firms for their cost of producing the FIRST q units produced, up to 1000 of them. What

149. ## chemistry

I have no idea how to go about this question, please help! A clumsy chemist accidentally pours 100 mL of a 0.004 M Na2SO4 solution into a beaker containing 500 mL of 0.050 M CaCl2. Will a precipitate be formed? Explain your reasoning and/or show all

150. ## chemistry

In 100 mL of distilled water,1.0g of thallium cholirde is added. How much of the 1.0g of TlCl doen't dissolve. The Ksp of TlCl is 3.6 x 10-6.

151. ## Chemistry

How do you change 15% to moles

152. ## PYHSICS

Vector A with arrow is directed along the positive y-axis and has magnitude 9.0 units. Vector B with arrow is directed along the negative x-axis and has magnitude 4.0 unit. (a) What are the magnitude and direction of A with arrow + B with arrow? magnitude

153. ## physics

A 130 cm length of string has a mass of 3.94 g. It is stretched with a tension of 8.60 N between fixed supports. What is the wave speed for this string?

154. ## precalculus

Solve the triangle α = 27 degrees 30', c = 52.8, a = 28.1

155. ## English

Chapter 24 Scarlet letter Please tell me if these are correct or not The narrator characterizes Chillingworth by means of A. An allegory B.A Simile C.An allusion D.A metaphor E. An Anecdote I say D The narrator implies that the difference between hatred

156. ## Political Science

In Gibbons v. Ogden, the Supreme Court held that? In Chapter 7 Federal Authority and the Limits to State Authority. If I am understanding right that the 10th Amendment trumps the Interstate Commerce Clause. I am I right?

157. ## math

1/4 of the T-shirts are pink, 1/2 T-shirt are white what remainder of the T-shirt is purple

158. ## physics

A small block is released from rest at the top of a frictionless incline. The distance from the top of the incline to the bottom, measured along the incline, is 3.70 m. The vertical distance from the top of the incline to the bottom is 1.67 m. If g = 9.80

159. ## chemistry

Co2(aq)->Co2(g) calculate the free-energy change for this reaction at 25 degrees Celsius.

160. ## Physics

In a particular crash test, an automobile of mass 1295 kg collides with a wall and bounces back off the wall. The x components of the initial and final speeds of the automobile are 25 m/s and 1.5 m/s, respectively. If the collision lasts for 0.11 s, find

161. ## Science

How is mass and inertia alike

162. ## Math

An airplane in Australia is flying at a constant altitude of 2 miles and a constant speed of 600 miles per hour on a straight course that will take it directly over a kangaroo on the ground. How fast is the angle of elevation of the kangaroo's line of

163. ## english

how does imagery help build the theme ,words can be powerful, in "A Barred Owl"?

164. ## physics

A 25 kg cannon ball is fired from a cannon with muzzle speed of 1520 m/s at an angle of 35.5 ◦ with the horizontal. The acceleration of gravity is 9.8 m/s 2 . Use conservation of mechanical energy to find the maximum height reached by first ball. Answer

165. ## chemistry

sucrose change of H is -2226.1kj/mol fructose change of H is -1265.6KJ/mol calculate the enthalpy change for the hydrolysis reaction of sucrose. sucrose + H2O(l)-> C6H12O6(s)+Fructose Is it just the products-reactants?? I'm confused.

166. ## georgia state history

Which of these would have been a goal of the Ku Klux Klan in the south during Reconstruction? A) making sure Reconstruction went smoothly B) assisting the scalawags and carpetbaggers C) ensuring that freedmen had the right to vote D) restoring southern

167. ## English

8 Sentences, packed with descriptions, details, and examples. A verbal video of your room. i am trying to write about my daughters room. need help. my daughters room has a wide closet filled with clothes. frozen pink carpet in front of her white bed.

168. ## Mixture science help

Which type of mixture has the largest particles? Explain how you know.

169. ## Chemistry

Can someone please help me solve this problem? Calculate the solubility of Ba3(PO4)2 in water. For Ba3(PO4)2, Ksp = 1.3 x 10- 29 Thank you!

170. ## Social research

1. Using the population figure (N of Cases) which is 55,000 compute the proportion of population members that died during 2007 if there were 4000 deaths during that year. Produce the answer rounded off or preset to include 3 decimal places. 2. Using the

171. ## desk top publisher

in publishing terms, the word tone refers to what?