# Nate

Popular questions and responses by Nate
1. ## calculus

If a snowball melts so that its surface area decreases at a rate of 3 cm2/min, find the rate at which the diameter decreases when the diameter is 9 cm. (Give your answer correct to 4 decimal places.)

2. ## phsycis

A tight-rope walker walks across a 30.0 m long wire tied between two poles. The center of the wire is displaced vertically downward by 1.0 m when he is half-way across. If the tension in both halves of the wire at this point is 3675 N, what is the mass of

3. ## physics-energy

A toy gun uses a spring to project a 5.3 g soft rubber sphere vertically. The spring constant is 8.0 N/m, the barrel of the gun is 15 cm long, and a constant frictional force of 0.032 N exists between barrel and projectile. How high does the projectile go

4. ## Finance

When purchasing the rights to a royalty, depending on the seller’s desired cash flows, Royalty Pharma can provide different types of payment schedules, such as an accelerated royalty or a synthetic royalty. In an accelerated royalty investment, Royalty

5. ## physics

A gray kangaroo can bound across a flat stretch of ground with each jump carrying it 9.3 m from the takeoff point. If the kangaroo leaves the ground at a 17.6 degree angle, what is its takeoff speed?

6. ## English

The day we found the sharks' teeth was foggy and cool. Moisture hung in the air so thick you could almost see it sparkling in the dim sunlight. There were days, early in the summer like this one, where it seemed there was more water in the air than in the

7. ## Analytic Geometry

what is the radius of the circle circumscribing an isosceles right triangle having an area of 162 sq. cm? Show your solutions pls. Thank you!

8. ## physical science

a 1.0 kg sample of metal with a specific heat of 0.50KJ/kgCis heated to 100.0C and then placed in a 50.0g sample of water at 20.0C. What is the final temperature of the metal and the water? I can't figure this out. Is the answer room temperature???

9. ## physics

The engine of a 1250 kg car provides a forward directed force of 3,560 N. If the car accelerates at a rate of 2.60 m/s2, what is the total resistive force (wind resistance, friction, etc.) acting on the car?

10. ## algebra

Assume that y varies inversely as x. If y is 2.4 when x = 5, which is an equation that relates x and y?

11. ## algebra

The light intensity of a light bulb varies inversely as the square of the distance from the light bulb. The function I(d) = k/d^2 models this situation, where I is the light intensity, d is the distance from a light source, and k is a constant. If the

12. ## physics

A construction worker is carrying a load of 40 kilograms over his head and is walking at a constant velocity. If he travels a distance of 50 meters, how much work is being done?

13. ## Physics

A 69.5 kg painter is on a uniform 30.0 kg scaffold supported from above by ropes . There is a 5.0 kg pail of paint to one side, as shown. The scaffold is 6 m long. 1.0 m on both ends and 4 m in the middle. From the left end at 1.0 m to the pail is 1.0 m.

14. ## physics

A merry go round has a radius of 3.5 meters. How far does a child standing at the edge travel (path length) if the wheel is rotated 13.0 radians?

15. ## Chemistry

1). Calculate the initial and final pH when 5.0, 10.0, and 100mL of 0.100M HCL is added to (a) 100mL of water (b) 100mL of a buffer which is 1.50M acetic acid and 1.20M sodium acetate 2). Develop a recipe for making this buffer from acetic acid, sodium

16. ## Physics

A small sphere X of mass M is placed a distance d from a point mass. The gravitational force on the sphere X is 90 N. Sphere X is removed and a second sphere Y of mass 4M is placed a distance 3d from the same point mass. What is the gravitational force on

17. ## Chemistry

An 80.0 g sample of a gas was heated from 25 degree C to 225 degree C. During this process, 346 J of work was done by the system and its internal energy increased by 7495 J. What is the specific heat of the gas? J/(g∗C)

18. ## Chemistry

An ideal gas with an initial volume of 2.30L is cooled to 12.00 Celsius where its final volume is 1.85L. What was the temperature initially?

19. ## Physics

A 1-kg ball initially moving with a speed of 3m/s strikes a stationary 2kg ball head-on. After the collision both balls stick together. What are the final velocities of the two balls?

20. ## algebra

A model rocket is launched upward with an initial velocity of 200 feet per second. The height, in feet, of the rocket t seconds after the launch is given by h = −16t2 + 200t. How many seconds after the launch will the rocket be 380 feet above the ground?

21. ## physics

A 25 kg chair initially at rest on a horizontal floor requires 393 N horizontal force to set it in motion. Once the chair is in motion, a 301 N horizontal force keeps it moving at a constant velocity. a) Find the coefficient of static friction between the

22. ## Math

The MPG for a certain compact car is normally distributed with a mean of 31 and a standard deviation of 0.8. what is the probability that the MPG for a randomly selected compact car would be less than 32?

23. ## Math

Compute E(X) for the following random variable X : X=Number of tosses until getting 4 (including the last toss) by tossing a fair 10-sided die.

24. ## algebra

A truck costs \$60,000. It depreciates in value \$6,000 per year. Write a linear model in the form v(t)=mt+b, where v(t) represents the current value of the truck after t years of ownership

25. ## Math

An artist wants to use silver wire to make a square that has a side length of 16 inches, then use copper wire to make the largest circle that can possibly fit in the square. At the local jewelry store, the artist can purchase silver wire for \$8.75/ft and

26. ## algebra

The force, F, needed to break a board in a martial arts class varies inversely with the length, L, of the board. If it takes 24 pounds of pressure to break a board 2.5 feet long, how many pounds of pressure would it take to break a board that is 18 inches

27. ## Math

The length of a rectangle is 2ft less than tree times width the area is 60 square ft. Find the length of the rectangle.

Identify and correct the errors in the following to create parallel structure: To narrow a web search a. Put quotation marks around a phrase when you want an exact term. b. Many search engines have wild cards (usually an asterisk) to find plurals and other

29. ## algera

The fuel efficiency for a certain midsize car is given by E(v) = −0.018v^2 + 1.440v + 3.9 where E(v)is the fuel efficiency in miles per gallon for a car traveling v miles per hour. (a) What speed will yield the maximum fuel efficiency? Round to the

30. ## probability

choose a number 1 to 100. What is the probability that the number is not a multiple of 5?

31. ## physics

You are part of a team to help design the atrium of a new building. Your boss, the manager of the project, wants to suspend a 16.0 kg sculpture high over the room by hanging it from the ceiling using thin, clear fishing line (string) so that it will be

32. ## physics

A rocket is fired straight up through the atmosphere from the South Pole, burning out at an altitude of 208 km when traveling at 5.8 km/s. (a) What maximum distance from Earth's surface does it travel before falling back to Earth? I know how to do the

33. ## physics

Barry Bee is flying through the air when he is struck by a truck. Which encounters more force, him or the truck?

34. ## Physics

A communications satellite is moving at a constant speed in a circular orbit around Earth. At any given instant in time, what is the resultant force on the satellite? A. zero B. equal to the gravitational force on the satellite C. equal to the vector sum

35. ## Algebra 2

Describe the transformation to the parent function in order to graph the following function, then write the equations of the Vertical and Horizontal Asymptote. Y = _-2___ + 4 x

36. ## Algebra

Is H=-4.9t²+vt+s the formula for a projectile motion, where h is height in meters t time in seconds and v velocity in meters per second and s start height in meters

37. ## Chemistry

What is the subshell designation for an electron with the following set quantum numbers? 1) n = 1; l = 0 2) n = 3; l = 2; mi = -1 3) n = 4; l = 3 3) n = 2; l = 0; mi = 0

38. ## Math

You arrive home to find that your 45 foot by 20 foot basement has 3 inches of water in it. A) If 1 cubic foot of water is about 7.48 gallons, how much water will you be pumping out of your basement? Express your answer rounded to the nearest tenth of a

39. ## Math

A round silo is 40 feet tall and has a 25 foot radius. How high would a load of 37000 cubic feet of grain fill the silo? Express your answer rounded to the nearest foot.

40. ## Physics

A uniform disk of radius 0.45 m is mounted on a frictionless, horizontal axis. A light cord wrapped around the disk supports a 1 kg object, as shown. When released from rest the object falls with a downward acceleration of 4.5 m/s^2. What is the moment of

41. ## math

A reading list contains 3 historical books and 4 science-fiction books. What is the probability that Tena will randomly choose a historical book for her first report and a science-fiction book for her second?

42. ## algebra

The height in feet of a projectile with an initial velocity of 32 feet per second and an initial height of 240 feet is a function of time in seconds given by h(t) = −16t^2 + 32t + 240. (a) Find the maximum height of the projectile. ______ ft (b) Find the

43. ## algebra

The height in feet of a projectile with an initial velocity of 32 feet per second and an initial height of 240 feet is a function of time in seconds given by h(t) = −16t^2 + 32t + 240.

44. ## algebra

The rate at which water evaporates from a certain reservoir depends on the air temperature. The table below shows the number of acre-feet (af) of water per day that evaporate from the reservoir for various temperatures in degrees Fahrenheit. Temperature,

45. ## Chemistry

How many grams of phosgenite can be obtained from 14.0 g of PbO and 14.0 g of NaCl in the presence of excess water and carbon dioxide?

46. ## Calculus

List the critical numbers of the following function in increasing order. Enter N in any blank that you don't need to use. f(x) = (6x+6)/(5x^2+5x+5)

47. ## Calculus

y = tan^-1(sqrt(5x^2-1)) find dy/dx

48. ## Calculus

The radius of a circular disk is given as 24 cm with a maximal error in measurement of .2 cm. What is the percentage error?

49. ## Calculus

Find the limit lim x->2 (2x^2 +1)/(x^2 + 6x -4)

50. ## Math

If you had a new business and you had 30 customers the first week and 55 customers the second week and 80 customers the third week, what would you project for week 4? Explain how you arrived at your answer.

51. ## Physics

You push your couch a distance of 3.6 m across the living room floor with a horizontal force of 198.0 N. The force of friction is 151.0 N. What is the work done by you, by the friction force, by gravity, and by the net force?

52. ## math (geometry)

If p∨q is true, then what must be true about the truth values of p and q?

53. ## physics

A crow sits on a clothesline midway between two poles as shown. Each end of the rope makes an angle of θ = 16° below the horizontal where it connects to the pole. If the combined weight of the crow and the rope is 8.4 N, what is the tension in the rope?

54. ## english

What happened to John Howland?

55. ## physics

Tarzan, who weighs 820 N, swings from a cliff at the end of a 20.0 m vine that hangs from a high tree limb and initially makes an angle of 22.0° with the vertical. Assume that an x axis extends horizontally away from the cliff edge and a y axis extends

56. ## science

Although most salamanders have four legs, the aquatic salamander shown below resembles an eel. It lacks hind limbs and has very tiny forelimbs. Propose a hypothesis to explain how limbless salamanders evolved according to Darwin's theory of natural

57. ## Math

Let A , B , and C be events associated with the same probabilistic model (i.e., subsets of a common sample space), and assume that P(C)>0 . For each one of the following statements, decide whether the statement is True (always true), or False (not always

58. ## Biology

If these parents were to have 12 children, what number (not what %) would we anticipate to have round/small eyes?

59. ## English

f you were adjusting your reading rate to suit your purpose, how would you read this passage from Act II, Scene 5, of A Christmas Carol: Scrooge and Marley? SCROOGE. … I am light as a feather, I am happy as an angel, I am as merry as a schoolboy. [Yells

60. ## Chemistry

the balanced equation for magnesium chlorate = magnesium chloride + oxygen

61. ## history

why are people so negative toward you on this site

62. ## Chemistry

Calculate concentration of solutions: 2.86 g Sodium Carbonate crystals Na2CO3.10H2O dissolved in 250 cm^3 of solution

63. ## English

Which of the following describes a theme and not a topic? Bravery and being afraid Struggle and endurance Obstacles make us stronger Winning became Sam's goal I think it is D

64. ## computer science

Suppose we are executing the DGIM algorithm for approximate counting of bits in a stream. Let the window size be 1000. (a) What is the largest possible bucket size in the representation of this stream? (b) Suppose each of the last 1000 bits is 1. What is

65. ## Algebra

Line m passes through points (4, 9) and (2, 2). Line n passes through points (2, 2) and (6, 7). Are line m and line n parallel or perpendicular?

66. ## history

how did the aztecs become so powerful

67. ## Physics

Identify the correct neutrino (Ve, Vµ, Vτ or their anti-particles) a) π+ —> p° + e+ + v b) π+ —> p° + µ+ + v c) τ+ —> e- + v + v Please explain why too...I'm really lost. I'd appreciate any help.

68. ## Physics

Identify the correct neutrino (Ve, Vµ, Vτ or their anti-particles) a) π+ —> p° + e+ + v b) π+ —> p° + µ+ + v c) τ+ —> e- + v + v Please explain why too...I'm really lost. I'd appreciate any help.

69. ## Algebra 2

Describe the transformation to the parent function in order to graph the following function, then write the equations of the Vertical and Horizontal Asymptote. Y = _1__ + 5 x- 3

70. ## Algebra 2

Jimmy is wanting to fence a rectangular area of his land along Elm Creek. He will only need to fence 3 sides. If Jimmy has 2000 ft of fencing and wants to enclose the largest possible area, determine the dimensions of the rectangular plot. Hint: Write an

71. ## Algebra 2

Find the A) Constant of Variation, B) the Equation of the Variation, and the C) the Solution The volume V of gas varies inversely to the pressure P. The volume of a gas is 200 cm^3 under pressure of 32 kg/cm^2. What will be its volume under pressure of 40

72. ## Algebra 2

Find the A) Constant of Variation, B) the Equation of the Variation, and the C) the Solution Y varies directly with x. If y = -4 when x = 2, find y when x = 6.

73. ## Algebra 2

Find the A) Constant of Variation, B) the Equation of the Variation, and the C) the Solution Suppose B varies directly with C and inversely with D and the cube root of A. B = 4 when A = 27, C = 2, and D = 5. Find B when C = 3, A = 64, and D = 6.

74. ## algebra

A pump can be adjusted to empty a 1000-liter pool at different rates. When operated at a rate of R liters per minute, the pump takes T minutes to empty the pool. Which equation below relates R and T correctly?

75. ## algebra

A pump can be adjusted to empty a 1000-liter pool at different rates. When operated at a rate of liters per minute, the pump takes minutes to empty the pool. Which equation below relates and correctly?

76. ## algebra

The time it takes to finish a job varies inversely as the number of workers helping with the job. If 8 workers require 12 hours to finish a job, how much time would 18 workers require to finish the same job?

77. ## algebra

According to Boyle’s law, the volume V of a gas varies inversely to the pressure P exerted by the gas. The volume of a given gas under a pressure of 32 kg per cm2 is 200 cm3. What will be the volume of this gas when the pressure exerted is 40 kg per cm2?

78. ## Math/Algebra

Can anyone help me? An 85-year-old woman in Rotorua, New Zealand, won't have to pay her library fine. A book she borrowed from the local library in 1945 was found during a move. Based on the borrowing rules pasted inside the front cover of the book, the

79. ## Math

f(x)=g(x)−1, g(x)=5x+2. Find f(4)−g(2) PLZ ANSWER FAST (you dont have to show work as long as the answer is right)

80. ## Math

The denominator of a fraction exceeds the numerator by 7. If 3 is added to the numerator and 1 is subtracted from the denominator, the resulting fraction is equal to 4/5 . Find the original fraction. PLZ SHOW ALL WORK AND HURRY!!!

81. ## Chemistry

A 17.7kg piece of zinc at 73 degrees celsius is placed in a container of water. The water has a mass of 23 kg and has a temperature of 13.4 degrees celsius before the zinc is added. what is the final temperature of water?

82. ## Calculus

A car traveling 96ft/s begins a negative acceleration at a constant rate of 12ft/s^2. After how many seconds does the car come to a stop? How far will the car have traveled before stopping? Anti-derivatives are involved somewhere in the 2nd part I believe.

83. ## Math

A model of A car has a scale of 3 cm : 2m the length of the actual hood of the car is 1m what is the length of the hood of the model

84. ## Math

Consider an account with an APR of 8.5%. Find the APY with daily compounding.

85. ## Math

A man 6 feet tall is standing 4 feet away from a 20 foot lamppost. How long is the lampposts shadow?

86. ## Chemistry

The chemistry problem is "How would you make 500.0 mL of a 3.00 M HCl solution form a stock solution that is 6.00 M?" I have no clue how to even approach this problem.

87. ## math

An executive traveling at 60 km hr would arrive 10 minutes early for an appointment, whereas at a speed of 45 km hr the executive would arrive 5 minutes early.how much time is there until the appointment?

88. ## Math

Tim is mixing blue and white paint to make pale blue paint. He uses 2 quarts of blue for every 3 quarts white. How many quarts of each color would he need to make 35 quarts of pale blue? Is the answer 14 quarts of blue and 21 quarts of white?

89. ## physics

A stone is thrown straight up from the ground with an initial speed of 26.6 m/s. At the same instant, a stone is dropped from a height of "h" (a variable) meters above ground level. The two stones strike the ground simultaneously. Find the height "h" (a

90. ## health

Its important to choose foods that provide more A.carbohydrates B.potassium C.mercury D.cholesterol

91. ## Physics

A block is released from rest at the top of an incline which makes a 30 degree angle with the horizontal. The incline is 12m long and it takes the block 25 seconds to reach the bottom. What is the coefficient of kinetic friction, µk, between the block and

92. ## algebra

A veterinarian uses 300 feet of chain-link fencing to enclose a rectangular region and also to subdivide the region into two smaller rectangular regions by placing a fence parallel to one of the sides, (a) Write the width w as a function of the length l. w

93. ## algebra

The sum of the length l and the width w of a rectangular area is 220 meters. (a) Write w as a function of l. w = (b) Write the area A as a function of l. A = (c) Find the dimensions that produce the greatest area. l = w =

94. ## algebra

A piece of pottery is removed from a kiln and allowed to cool in a controlled environment. The temperature (in degrees Fahrenheit) of the pottery after it is removed from the kiln is shown for various times (in minutes) in the following table. Time(min)

95. ## algebra

The rate at which water evaporates from a certain reservoir depends on the air temperature. The table below shows the number of acre-feet (af) of water per day that evaporate from the reservoir for various temperatures in degrees Fahrenheit. Temperature,

x2 = −x + 1

97. ## algebra

(z − 1)^2 + 4 = 0

98. ## algebra

A company has determined that the profit, in dollars, it can expect from the manufacture and sale of tennis racquets is given by P = −0.01x^2 + 130x − 180,000. How many racquets should the company manufacture and sell to earn a profit of \$174,900?

99. ## math

solve v=1/3TTr2h; h