gabe

Most popular questions and responses by gabe
1. physics

A string is wrapped around a uniform solid cylinder of radius r. The cylinder can rotate freely about its axis. The loose end of the string is attached to a block. The block and cylinder each have mass m. Note that the positive y direction is downward and

2. Social Studies

How would land elevation have changed if Coronado had traveled 150 miles due west from what is today Arizona instead of east toward New Mexico ?

3. physics

A bicycle wheel is mounted on a fixed, frictionless axle. A massless string is wound around the wheel's rim, and a constant horizontal force, F, starts pulling the string from the top of the wheel starting at time t = 0 when the wheel is not rotating.

4. calculus

Find the integral of x^3 + [(x^4)(tanx)] from -pi/4 to pi/4

5. math

Write a real-world problem that you could represent with the equation 4x+5=37. Solve the equation to find the answer to your question.

6. physics

A block of mass 3.90 kg is pushed 3.80 m along a frictionless horizontal table by a constant 16.0 N force directed 24.0° below the horizontal. What is th total work done on the block?

7. language

May this is it ; Storm over ocean torrents of rein dropping downward and theirs no sign that its stopping anytime soon/ face and fingers dripping./as into the see the slick skies slip. I'm not sure .

8. Math

During the soccer season, richard attempted 80 goals and made about 65% of them. a. How many goals did Richard make? b. The team made a total of 327 goals. What percent of the team's made goals did Richard make?

9. Nuclear chem

electron decay transforms 40 K 19 into what nuclide?

10. physics

Two girls pull a 15 kg sled, each with her own rope. They pull horizontally at an angle of 30 degrees from each other with identical forces of 25 N each. The coefficient of friction between the snow and the sled is 0.1. The acceleration of gravity is 9.8

11. consumer math

Jan borrowed \$1,200 at 11.5% interest for three months. How much does she have to repay under a single-payment plan?

12. Algebra

How do you write an algebraic expression for five friends went to a baseball game. Three of the friends each bought a ticket for x dollars and a soda for \$6.00. The other two friends each bought only tickets. Write and simplify an expression that

13. Chemistry

Consider a certain type of nucleus that has a half life of 32 min. Calculate the percent of original sample of nucleus remaining after 3.0 hours have passed? how would i calculate this???

14. math

Sal borrowed \$2,000 for six months at 11.5% simple interest. What was the total amount he had to repay?

15. calculus

A boat is pulled into a dock by a rope attached to the bow of the boat and passing through a pulley on the dock that is 1 m higher than the bow of the boat. If the rope is pulled in at a rate of 1 m/s, how fast is the boat approaching the dock when it is 9

16. ath

Jill deposited \$2,500 in a savings account at a rate of 7.75%, compounded monthly. How much was in her account after three months?

17. Language

Rewrite each line of poem by putting capital letters and punctuation marks where they belong.I have tried to get this but i'm lost. Poem : Storm over ocean torrents of rein dropping downward, and theirs no sign that its stopping anytime soon. Face and

18. calculus

A trough is 15 ft long and its ends have the shape of isosceles triangles that are 4 ft across at the top and have a height of 1 ft. If the trough is being filled with water at a rate of 14 ft^3/min, how fast is the water level rising when the water is 8

19. math

Leanne is getting a puppy. Her parents are building a play area to give the puppy a place to run. The play area will be in the shape of a rectangle with length of 25 feet and a width of 15 feet. If the total cost of the fence is \$1,440, what is the unit

20. language

Is it , The leaves were shaken from the branches .

21. Math

Marissa pours one and a half cups of punch in each class how many fluid ounces each serving

22. math

I need to write and explain how I know that 55/80 is not in the simplest form.

23. health pllz help me i have trouble

1. Haley is excited about a new activity she learned about while surfing the Internet called orienteering. Which community group would most likely be able to give her a good start in this activity? (1 point)church youth group dance team drama club Girl

24. Chemistry!

Before investigating the scene, the technician must dilute the luminol solution to a concentration of 6.00×10−2 M. The diluted solution is then placed in a spray bottle for application on the desired surfaces. How many moles of luminol are present in

25. Science

If a certain spring stretches 9.76811 cm when a load of 17.9936 N is suspended from it, how much will the spring stretch if it is cut in half and 65.8458 N is suspended from it? Answer in units of cm.

26. physics

A 3.47 kg ball is attached to a ceiling by a 1.63 m long string. The height of the room is 5.59 m. What is the gravitational potential energy of the ball relative to the ceiling?

27. science

in pea plants yellow peas are dominant over green peas. a particular pea plant has one recessive allele for green peas. in which of the following scenarios would the plant have green peas?

28. Nuclear Chem

the nuclide 232 Th 90 is radioactive. when one of the atoms decays, a series of alpha and beta particle emission occurs, taking the atom through many transformations to end up as an atom of 208 Pb 82. How many alpha particles are emitted in converting 232

29. Physics

In a laboratory experiment, one end of a horizontal string is tied to a support while the other end passes over a frictionless pulley and is tied to a 1.3 kg sphere. Students determine the frequencies of standing waves on the horizontal segment of the

30. physics

A barometer is taken from the base to the top of a 554 m tower. Assuming the density of air is 1.29 kg/m3, what is the measured change in pressure?

hey MRS Sue

32. math

When you round 94,872 to the nearest ten thousand = 90,000, then round to the nearest thousand = 95,000. What do you notice about your answers ? Explain

33. math

It takes a submarine 11 minutes to dive 154 meters below sea level. If the submarine dives at a constant speed, how much does its depth change per minute?

34. Physics

Which produces the largest torque? 30.0 N perpendicular to the center of rotation at a radius of 1.5 m 30.0 N perpendicular to the center of rotation at a radius of 0.25 m 60.0 N perpendicular to the center of rotation at a radius of 1.0 m 60.0 N

35. Algebra

One type of anyifreeze is 40% glycol, and another type of antifreeze is 60% glycol. How much of each kind should be used to make 100 gallons of antifreeze that is 48% glycol? How do i show my work? Thanks

36. biology

genetic engineering can provide a variety of advantages and disadvantages to today's society. what are current scientists more likely to learn from transgenic animals than from transgenic bacteria or transgenic plants?

37. math

Given the simple interest formula, I = Prt, solve for t

38. social studies

Why was Alexandria the Great and his soldiers so successful in battles against the Persians ?

39. language art pllz help

1. Which of the following would most likely connect with the speaker of "Growing Pains"? (1 point)a teen whose parents are going through a difficult divorce a teen who has let down one of her best friends a teen whose mother is often too busy to spend time

40. language

Is this punctuation correct for this sentence ? " Here's a hard one , " taunted Wilma .

41. Chemistry

Hello! I was wondering why is it that it is safe to eat olive oil, corn oil, canola oil, etc. but not diesel oil or something like that. What is the reason in chemical structural sense?

42. CHEM

the nuclide 232 Th 90 is radioactive. when one of the atoms decays, a series of alpha and beta particle emission occurs, taking the atom through many transformations to end up as an atom of 208 Pb 82. How many alpha particles are emitted in converting 232

43. AP CHEM

For the reaction A + 2B + C ----> 2 D + E the following initial concentration and initial reaction rates are found: [A]null (M) [B]null (M) [C]null (M) 0.150 0.150 0.150 0.275 0.150 0.150 0.275 0.564 0.150 0.150 0.314 0.253 0.193 0.314 0.217 initial rate

44. math

John was visiting three cities that lie on a coordinate grid at (-4, 5), (4, 5), and (-3, -4). If he visited all the cities and ended up where he started, what is the distance he traveled? Round your answer to the nearest tenth. (like 3.2 or 5.7)

45. Language arts plz help

1. The poet uses all of the following in "Annabel Lee" except (1 point)alliteration. simile. repetition. rhyme. 2. Which of the following best shows that the speaker is still deeply in love with Annabel Lee? (1 point)The speaker explains that he and

46. Physics

The boiling point of helium at 1 atm is 4.2 K. What is the volume occupied by helium gas due to evaporation of 70 g of liquid helium at 1 atm pressure and a temperature of 6.2 K?

47. math prob

how many midsegments does a triangle have?

48. Chemistry

what is the equation for activation energy in terms of chemical kinetics. i tried to look it up but i get something different every time

49. Math

Mike had Some money in his wallet. Hè went to the mall and spent \$8 On a game, \$14 On a gift for his Dad, and \$7 On lunch. Then his mom gave him \$10. Hè bought a book. How much idd Mike originally have in his wallet?

50. math

How many tens are there in 7,801,204.76? Is it 7 ?

51. math

what value does the 6 represent in 7,801,204.76 ? Is it hundredth ?

52. programming

Problem 6.9 Lottery Number Generator A lottery commission offers four different lottery games to play: Three-number, Four-number, Five-number and Five-number + 1 lotteries. Each game has independent numbers. Develop an application that randomly picks

53. english

Pretend that you writing to the editor of your local newspaper. Your purpose is to convince its readers that rather than solely relying on e-mail, people should mail a letter to their loved ones every now and then. Following is your first draft. Every now

54. Vector

Determine the caresian equaiton of a plane that pass through point P(1,2,2) and is perpendicular to the line (x,y,z)= 3,-1,-4 + t(-2,3,1)

55. Calculus

Let f and g be the functions in the table below. x f(x) g(x) f '(x) g'(x) 1 3 2 4 6 2 1 3 5 7 3 2 1 7 9 (a) If F(x) = f(f(x)), find F '(2). (b) If G(x) = g(g(x)), find G '(1). I know I probably have to use the chain rule. But how?

56. calculus

Find a parabola of the form given below that has slope m1 at x1, slope m2 at x2, and passes through the point P. y=ax^2 + bx + c m1 = 8, x1 = 11 m2 = 7, x2 = 9 P = (5,7) y = ? I don't know where to begin. I can't find anywhere in my textbook that teaches

For the reaction A + 2B + C ----> 2 D + E the following initial concentration and initial reaction rates are found: [A]null (M) [B]null (M) [C]null (M) 0.150 0.150 0.150 0.275 0.150 0.150 0.275 0.564 0.150 0.150 0.314 0.253 0.193 0.314 0.217 initial rate

58. Math

thank you for the help. another question. Jim opened a savings account with \$5. If his savings account doubles every month, how much will he have at the end of the 8 month. our answer was \$1280 1st 5x2=10 2nd 10x2=20 3rd 20x2=40 4th 40x2=80 5th 80x2=160

59. social studies

why was Alexandria and his armies so successful in their battles against the Persians?

60. Math

6 hundred 2 tens = 5 hundreds ? Tens

Papa Tells Chita a Story Papa said, "I kept riding,riding,riding...and the sun got hotter,hotter,hotter."Why do you think Papa repeated the words in that sentence?

62. physics

Suppose a car is traveling at +23.8 m/s, and the driver sees a traffic light turn red. After 0.351 s has elapsed (the reaction time), the driver applies the brakes, and the car decelerates at 7.00 m/s2. What is the stopping distance of the car, as measured

63. math

garys cat weighs 11 lb.How many ounces is that?

64. calculus

Find the integral of x^3 + [(x^4)(tanx)] from -pi/4 to pi/4

65. Operations Management

Setup Times Read the case study below “Hi-Ho Yo-Yo, Inc.”. Write a short summary of each of the four methods for selecting the order in which to release the products to printing. Complete a short analysis for each method which provides the average flow

66. physics

An airplane has a mass of 33500 kg and takes off under the influence of a constant net force of 41500 N. What is the net force that acts on the plane's 82 kg pilot?

67. physic you sure

in the distance you see an arch 192 meters high, you estimate your line of sight with the top of the arch to be 8.4 degree. appox how far in kilometers are you from the base of the arch? tan8.4-0.192/d? is this the complete answer?

68. calculus

Differentiate the following function. f (x) = 6 x 2 sin(x)tan(x) Where do I begin?

69. calculus

lim (x->0.5 from the left)((2x-1)/|(2x^3-x^2)| = -4 I would have thought positive four. How can this be?

70. consumer math

One week Roger earned \$425.50 regular pay and \$60.50 overtime pay. His net pay for the week was \$275.30. How much did he have withheld for deductions? i don't know how to find the deduction so far don't now if right i add regulare pay=

71. Math

i need to know exactly the formula of how to do these types of problems because i have spend seriously over an hour trying to do this one problem. HELP! A dealer mixes candy worth 90 cents per pound with candy worth 65 cents per pound in order to obtain 40

72. Algebra

find all ssymptotes of indicated type. I am really confused on this one. f(x)=(x-9)/(x^2-4), vertical x^2-4=0 x=+-2 x=2&x=-2 x arrow oo or x arrow -oo (-9/x)&(-4/x) approach 0 h(x)=(1/x)+0)/(1+0)=(0/1)=0

73. Science

My sister plays her PS4 all day and whenever her remote vibrates while it's sitting on the couch, I can feel the vibration from a different seat. I don't understand how the vibration of a little remote can move throughout a whole, large couch.

74. Chemistry

To a mixture of NaCl and Na2CO3 with a mass of 1.300 g was added 55.00 mL of 0.243 M HCl (an excess of HCl). The mixture was warmed to expel all of the CO2 and then the unreacted HCl was titrated with 0.100 M NaOH. The titration required 7.40 mL of the

75. science

Which of these does the welding tool release ? 1) heat and electrical energy 2) heat and light . I think it's heat and light is this correct .

76. english

finding subject There were many new inventions in the 1920s.

77. Math

Ms. Perez has a crate has 24 pieces of fruit . 1/2 are oranges, 1/4 are mango's and 2/8 are pineapples. How many oranges are there, how many mango's and how many pineapples?

78. Accounting

If you treat the day of the month as a number (March 12th is the number 12, April 4th is the number 4), what is the average value of the numbers that represent the 6 Tuesdays that fall after September 12, 2011?

79. Genetics

How is it that someone with brown eyes could have parents, both with blue eyes? Aren't blue eyes recessive?

80. english

Pretend that you writing to the editor of your local newspaper. Your purpose is to convince its readers that rather than solely relying on e-mail, people should mail a letter to their loved ones every now and then. Following is your first draft. Every now

81. Chemistry

Select everything on the list below that is composed of atoms. a. water b. can of soda pop c. computer you are using d. your textbook e. an orange f. bottle of drain cleaner g. flask of hydrochloric acid would the answer be all of the above?

82. physics

An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 3.3 m/s2. The magnitude of the car's velocity at the

An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 3.3 m/s2. The magnitude of the car's velocity at the

84. physics

in the distance you see an arch 192 meters high, you estimate your line of sight with the top of the arch to be 8.4 degree. appox how far in kilometers are you from the base of the arch?

in the distance you see an arch 192m. you estimate your line of sight with the top of the arch to be 8.4 degrees above the horizontal. appox how far in kilometers are you from the base of the arch?

86. calculus

Use the Intermediate Value Theorem to show that there is a root in the equation x^(1/3)=1-x in the interval (0,1).

87. Science

Megan, Jose, Austin, and Timothy are driving from Atlanta to Orlando which is a total of four hundred miles. They each left at 6:45 a.m. Everyone has been driving at different average speeds. Figure out the average speed of each driver. 1. Jose's friend is

88. math geomety

draw a trapezoid whose parallel sides measure 1 inch and 1 1/2 inches. find the length of the midsegment

89. ml algebra 1

Simplify the expression: 40x ÷ (1/8)

90. american government

why in many states voting districts before 1964 werre unequal in population

91. coefficient

test using the lead coefficient to find out if y arrow oo, or y arrow-oo as x arrow -oo y=-5x^3+4x^2+6x-7 n is odd -5x^3 an

92. Kinetics

I'm really struggling to understand this chapter in chem class, partly due to an inadequate math background. does anyone have any tips for learning kinetics? i'm starting to fall behind.

93. algebra

7x-8y=1 5x+37=y sub the second equation into the first: 7x - 8(5x+37) = 1 expand, simplify and solve

94. Math

If dy/dx=(1+x)/(xy) ,x > 0, and y =âˆ’ 4 when x =1, when x =3, y =? 6.433, -6.233 3.898, -3.898 4.711, -4.711 4.711 only 3.898 only

95. Math

Jim opens a savings account with \$5. His account doubles every month. How much will he have after the 8th month? 1st 2x5=10 2nd 10x2=20 3rd 20x2=40 4th 40x2=80 5th 80x2=160 6th 160x2=320 7th 320x2=640 8th 640x2=1280 1280 was marked wrong. why?

96. Math

Braiden's puppy tripled in size every month since being born. If he weighed 4 punds at the end of the first month, how did he weigh after the 5th month

97. history

The Americas didn't provide Europeans with added

98. language

Is this the correct past-tense helping verb and main verb for the rewrite of this sentence ? The leaves were shook from the branches . The leaves was shaken from the branches .

99. Chemistry

how many joules and calories are produced from the reaction CaCl2+H2O=HCl+CaOH