# A Ferris Wheel, 24.0 m in diameter, rotates once every 12.5s. What is the fractional change in a person's apparent weight: a) at the top, and b) at the bottom?

21,500 results, page 67
1. ## math

Given a circle A whose diameter is 2 ft.and a rectangular piece of tin B,10ft by 4 ft.Find, correct to the nearest square foot, the tin that will be left after the greatest possible number of circles of the size of A have been cut from B. a. zero b. 1
2. ## Geometry

Find the surface area of a conical grain storage tank that has a height of 42 meters and a diameter of 20 meters. Round the answer to the nearest square meter. 3,028m2 3,971m2 1,357m2 1,671ma
3. ## math

madison square garedn in new york city is built in the shape of a circle. its diameter is 404 ft and it accommodates 20,234 spectators, the nearest tenth of a square foot, how much area is there for each spectator... please help i am confused...thank you
4. ## Stress & Strain (Help Please)

A tie bar is made of a material having a tensile strength of 231 MPa and has to carry a load of 255 kN. What id the diameter of the bar if a factor of safety of 7 is applied? ANS = 99.2 mm Cannot figure out how to get the answer. Need help please. Thank
5. ## physics

Assuming biological substances are 90% water and the density of water is 100 kg/meter cubed, estimate the mass of a fly, which can be approximated by a cylinder 4 mm long and 2 mm in diameter (volume (length*pi*radius squared)
6. ## Physics

A 2.5kg solid homogenous ball is rolling without slipping at 3.0 meters per second to the right on a level surface. The diameter of the ball is 80 centimeters. What is the total kinetic energy of the ball? Can someone give me the equation for this?
7. ## Maths

A cupcake tray has 24 semi-spherical cups that are 6cm in diameter. What volume of mixture is required to fill the tray if each cup is filled level with the top of thr tray?
8. ## physics

A 4.0 kg, 36-cm-diameter metal disk, initially at rest, can rotate on an axle along its axis. A steady 5.5 N tangential force is applied to the edge of the disk. What is the disk's angular velocity, in rpm, 4.0 s later?
9. ## algebra

A group of people in new Yorkm made a very large round jelly donut which broke the world record for donut size, it weighed 1.5 tons and had a circumstance of 50 ft. What was the diameter of the donut?
10. ## physic

Water flows through a 4.0-cm-diameler horizontal pipe ata speed uf 1.3 m/s. The pipe then narrows down to a diameter of 2.0 cm. Ignoring viscosity, what is the pressure difference between the wide and narrow sections of the pipe
11. ## physics

A 2.5kg solid homogenous ball is rolling without slipping at 3.0 meters per second to the right on a level surface. The diameter of the ball is 80 centimeters. What is the total kinetic energy of the ball? Can someone give me the equation for this?
12. ## math

A 4inch-thick concrete slab is being poured for a circular patio 14 feet in diameter. Concrete costs \$55 per cubic yard. Find the cost of the concrete, to the nearest cent.
13. ## History 2 questions

Please help if you can. 1. The idea that the people have the right to abolish an abusive and unresponsive government was FIRST formally expressed by Americans in the a. Constitution b. Petition of Right c. Declaration of Rights d. Declaration of
14. ## Physics

A shot putter puts a shot (weight=70.3N) that leaveshis hand at distance of 1.51m above the ground. (a) Find the work done by the gravitatiob force when the shot has risen to a height of 2.10m above the ground. include the correct sign for work. (b)
15. ## math (algebra)

In a certain circle, the length of a radius is equal to the reciprocal of the length of a diameter. What is the area of this circle?
16. ## Physics

A child rolls a ball on a level floor 3.4 m to another child. If the ball makes 9.0 revolutions, what is its diameter?
17. ## carrer math

A standard basketball has a diameter of 9 9/16 inches (that is 9 inches and 9/16 of an inch). What is the volume of air in the basketball?
18. ## Math

A standard basketball has a diameter of 9 9/16 inches (that is 9 inches and 9/16 of an inch). What sit he volume of air in the basketball?
19. ## geometry

An isosceles trapezoid with that bases 16 in and 34 in are inscribed in a circle such that one of the bases is the diameter. Find the area of the trapezoid.
20. ## geometry

For "circle"(O,r) , AP is the tangent at "A belongs to circle", from an exterior point P. Now, OP "intersection" circle = {B}. If BP = 1.6 = AB/5 , Then find diameter of the circle.
21. ## physics

A bicycle with 55.20 cm diameter wheels is traveling at 23.60 km/hr. At what angular speed do the wheels turn? How long do they take to turn once around?
22. ## geometry

A pile of gravel is conical in shape. If the diameter is approximately 6.8m and the height is 2.8m, what is the volume of gravel in the pile.
23. ## maths

a cone is 8 cm high and radius is 2 cm.the cone is melt and recast into a sphere.find diameter of sphere.
24. ## Math 20-3

A pile of gravel is conical in shape. If the diameter is approximately 6.8m and the height is 2.8m, what is the volume of gravel in the pile?
25. ## Math

A pile of gravel is conical in shape. If the diameter is approximately 6.8m and the height is 2.8m, what is the volume of gravel in the pile?
26. ## Radius Question Geometry(college level)

When you have 3 separate circles and the radius of each of those circles is 10 do i calculate like this? 2(10)+2(10)+2(10)=60 cm for my diameter
27. ## Math help

A spherical water tank holds 15.000ft^3 of water. Find the diameter of the tank ( hint: V=pi/6*D^3
28. ## Hanus

points Q (10,8) and R (24,10) are the endpoints of a diameter of a circle centered at P. Line l is tangent to the circle at S (12,14). What is the y-intercept of line l?
29. ## Math

The diameter of a circle is 130 cm, and a chord of the circle is 66 cm long. What is the distance between the chord and the center of the cirlce?
30. ## Physics

You are told that the volume of a sphere is given by V=(sqrt)d^3/4, where V is the volume and d is the diameter of the sphere. Is this equation dimensionally correct?
31. ## maths

A hallow sphere has a volume of kcm^3 and a surface area of kcm^2.what is the value of the diameter of the sphere if it is tripled
32. ## geometry

A sphere with a diameter of 24 inches is reshaped into a cone with a radius of 32 inches. If all the material is used, what is the height of the cone?
33. ## physics

a spherical balloon of diameter 2m is filled with helium.Assume STP .how much is contained in the balloon helium
34. ## chemistry

Calculate the number of collisions per second of one hydrogen molecule at 24 °C and 1.00 bar. The diameter of a hydrogen molecule is 270 pm.
35. ## algebra

a car tire has a diameter of 3.5ft. How many revoulutions does each tire make if the car travelled 400ft ?
36. ## Froude number

Show that Froude number of a propeller with diameter D and rotational speed n(1/sec) can be given as Fn=n*sqrt(D/g)
37. ## Chemistry

What is the mass of a cylinder of lead that is 2.50 cm in diameter and 5.50 cm long. The density of lead is 11.4 g/mL. Find the volume of the cylinder.
38. ## math

the circumference of a circle is 120 millimeters. Which of the following inqualities is true for d, the diameter of the circle measured in millimeters? A. 10<d<20 B. 30<d<40 C. 50<d<60 D. 70<d<80
39. ## math

A basketball has a diameter of 29.5 inches. If the basketball is fully inflated, about how many cubic inches of air will it hold?
40. ## earth

if n the diameter of the earth is 19.7Mm , what is in cm
41. ## Physics

HW8_1: CANTILEVERED BEAM WITH TAPERED SQUARE CROSS SECTION A cantilevered beam of length L has a square cross section of side length linearly varying from hA at the free end to hB=3hA, at the fixed support. A concentrated load, P, is applied at the free
42. ## Science help (Plz help!!! 20-point quiz tomorrow!!

I have three questions that I could not find in my book, even though they are probably there. Plz help, I have to do well on this quiz, or I'm dead!!! 1) What two forces are at work in a nebula that is not creating a star? 2)What happens to the rocks in
43. ## Physics

Water drives a waterwheel (or turbine) of radius 3.0m. The water enters at a speed of v1 = 7.0 m/s and leaves at a speed of v2= 3.0 m/s. A) if 150kg of water passes through per second, what is the rate at which the water delivers angular momentum to the
44. ## Statistics

The U.S. Department of Labor and Statistics released the current unemployment rate of 5.3% for the month in the U.S. and claims the unemployment has not changed in the last two months. However, the states statistics reveal that there is a decrease in the
45. ## Writing

Please give me a score of 1-6 (one being poor and six being excellent). Also, please give me some feedback! Thank you in advance! Essay prompt: What motivates people to change? Essay: Many people know that eating junk food is unhealthy. Yet, they keep
46. ## Writing

Please give me a score of 1-6 (one being poor and six being excellent). Also, please give me some feedback! Thank you in advance! Essay prompt: What motivates people to change? Essay: Many people know that eating junk food is unhealthy. Yet, they keep
47. ## physcial science

When 1 kg of ice at 0 degrees Celsius absorbs 80 kilocalories of heat, the ice undergoes a) a change of state b) a loss of energy c) a rise in temperature d) an increase in volulme The heat of fusion of water is 80 kcal/kg. That means that 1 kg of ice will
48. ## Math 160

The position function of an object moving along a straight line is given by s = f(t). The average velocity of the object over the time interval [a, b] is the average rate of change of f over [a, b]; its (instantaneous) velocity at t = a is the rate of
49. ## Science

A particle has a velocity of 18m/s at a certain time and 2.4s later is velocity is 30m/s in the opposite direction. What are the magnitude and direction of the particle's acceleration during the 2.4s interval? I udes a=change in velocity /change in time
50. ## MAT LAB

HW8_1: CANTILEVERED BEAM WITH TAPERED SQUARE CROSS SECTION A cantilevered beam of length L has a square cross section of side length linearly varying from hA at the free end to hB=3hA, at the fixed support. A concentrated load, P, is applied at the free
51. ## MIT 2.01X

HW8_1: CANTILEVERED BEAM WITH TAPERED SQUARE CROSS SECTION A cantilevered beam of length L has a square cross section of side length linearly varying from hA at the free end to hB=3hA, at the fixed support. A concentrated load, P, is applied at the free
52. ## Physics

A closed organ pipe 0.8 m long has a diameter of 7.0 cm. The air in the church is 15oC. What is the fundamental frequency? If the heat is turned up to 20oC, what is the new fundamental frequency?
53. ## maths

A cylindrical vessel without a lid is made from a sheet of metal . Find the area of the metal required if the length of the vessel is 35cm and its diameter is 28cm ????
54. ## CHEMISTRY

*Specific Gravity A cylinder of plastic is 100 mm long and 50 mm in diameter. It has a mass of 1 kg. Determine its specific gravity and indicate whether it would float or sink in water . PLLEEEEEEEEEEEASE
55. ## Math

A spherical water balloon has a diameter of 10 cm. How much water is needed to fill the balloon, in cubic centimeters? Round your answer to the nearest centimeter. (Use 3.14 for π.)
56. ## Chemistry 101

Calculate the mass of a cylindrical cork of diameter 1.00 inches and length 2.50 inches. Pay attention to significant figures, Cork density 0.26 g/ mL
57. ## physics

What is the resistance of 6.2mi of copper wire with a diameter of 0.57mm ? The answer is suppose to be in Kohm for the resistance i got 656.9 ohm but don't know how to convert it in to kohm
58. ## math

1. the speed of light is 8.0x^8m/s in standard form that is? 2. the average size of a virus is 2x 10^-10 nanometers in diameter. how to write the number(s) given scientific notation in standard form. thank you
59. ## Math

rose is getting a snare drum for her birthday! They are 14 inches in diameter. I want to wrap ribbon around 4 times. How many inches of ribbon do i need? write the formula, and show your work.
60. ## physics

The spring of the pressure gauge has a force constant of 1,000 N/m,and the piston has a diameter of 2.00 cm.when the gauge is lowered into water,at what depth does the piston move in by 0.500 cm?
61. ## math

You order a pizza. The pizza has a diameter of 14 inches and it is cut into 12 equal slices. You eat four slices, how much of the area have you consumed. How long is the remaining crust.
62. ## Physics

a safety harness is connected to a cable with a report breaking stress of 800MNm2. what mass could be hung from a harness if the diameter of the cable was 6mm. how do I work this out?
63. ## Find the Volume

The diameter of a Sphere is 4.8 cm Use 3.14 and round to the nearest thousandth. A 57.876 cm3 B 463.012 cm3 c 289.382 cm3 d 72.346 cm3
64. ## math

a cylindrical vessel without lid is made from a sheet of metal find the area of metal required if the length of the vessel is 35cm and its diameter is 28cm.
65. ## Physics

A marble cylinder that has a diameter of 42cm and stands 1.25m tall rests on a flat tile deck. What is the pressure excerted on the deck by the cylinder?
66. ## Math

You order a pizza. The pizza has a diameter of 14 inches and it is cut into 12 equal slices. You eat four slices, how much of the area have you consumed. How long is the remaining crust.
67. ## Math

Diameter of a circle is 1.3*10^-12 what is the radius and Find the trinmial parrelgram represents area pf a parrelogram whose base is 3x+2 meters and height is 2x+3 meters find A(3)? Do not understand these what so ever please help me
68. ## Maths

A cone is formed by bending a sector of a circle having an angle of 288 degrees.find the radius of the base of the cone if the diameter of the circle is 18cm
69. ## physics

A centrifugal pump pumps 100 lbs/hr of water 100 ft high to the top nozzle of a distillation column. The pump impeller is 3 ft diameter?
70. ## physical science

What length of German silver wire, diameter 0.050 cm, is needed to make a 28 Ωresistor, if the resistivity of German silver is 2.2 × 〖10〗^(-7) Ω m (show work)
71. ## Claflin

A reflecting, spherical Christmas tree ornament has a diameter of 8.0 cm. A child looks at the ornament from a distance of 20 cm. Describe the image she sees. image location in centimeters.
72. ## physics

The curved artery can be approximated as a semicircular arch whose diameter is 4.9 cm. If blood flows through the aortic arch at a speed of 0.35 m/s, what is the magnitude (in m/s2) of the blood's centripetal acceleration?
73. ## geometry

How many square inches are in the lateral surface area and total surface area of an aluminum can with 2 1/2 in. diameter and 4 3/4 in. height? I've worked on this until I'm crossed-eyed and it's not coming out right!
74. ## Math

A steel reinforcing rod is 12 ft. long and 1" thick in diameter. If a cubic foot of steel weighs 490 lb., how much does the rod weigh (to the nearest pound)?
75. ## math

A cylindrical container has a diameter of 12 inches and a height of 15 inches, as illustrated in the accompaying diagram. What is the volume of this container to the nearest tenth of a cubic inch?
76. ## physics

A 3.0 m tall, 42 cm diameter concrete column supports a 230,000 kg load. By how much is the column compressed? Assume Young's modulus for concrete to be 3.0 1010 N/m2. in mm
77. ## math

Caitlyn bought a helium tank to fill spherical balloons for a party. If the diameter of the filled balloons are 14.4 inches, how much helium would be needed in each balloon?
78. ## Math

You need to choose a container to a section of Pipe into . The pipe diameter is 6inches ,and the section is 100feet long how many liquide ,in cubic feet do you need What the answer pleasé
79. ## Physics

Water flows at 2.4 m/s through a garden hose of diameter 1.59 cm and emerges from a nozzle of radius 0.64 cm. If the nozzle is directed vertically upward, to what height would the water rise?
80. ## math

Find the weight of led pipe is 3.5 m long if the external diameter of pipe is 2.4 cm and the thickness of led is 2mm and 1cm cube of the leg width is 4g
81. ## Math

A car tire has a diameter of 3 feet and is revolving at a rate of 45 rpm. At t = 0, a certain point is at height 0. What is the height of the point above the ground after 45 seconds? Can you lead me into the right direction?
82. ## Physics

If you are wearing contact lenses with a dioptric power of 3.4 and your eye has a diameter of 2.6 cm, what is the effective focal length of your eye-contact lens combination, in centimeters?
83. ## Maths

A cone formed by bending a sector of a circle having an angle of 288 degrees. Find the radius of the base of the cone if the diameter of the circle is 18cm
84. ## engineering

when i do imaging of tissue to look at collagen structure using a 2 photon microscopy, but im not familiarized with the methods to measure the diameter of the collagen and the area occupied by it. Does anyone know how do researchers measure them
85. ## Trigonometry

The wheels of a scooter have a diameter of 4.5 inches. If the person riding the scooter is traveling down hill at 15.0 mph. what is the approximate angular speed of the wheels in radians per second
86. ## Fluids

A pipe of constant diameter d = 10.5 cm carries water up a hill h = 38.1 m high. How much pressure is required at the bottom of the hill if the water is to reach the top? Any help would be great
87. ## Maths

Wxyz is a cyclic quard. If the bisector of angle xwz and angle xyz meet the circle at point a and b resp. then prove:ab is a diameter of a circle
88. ## physics

What is the length of copper wire is required to produce a 4mohm resistor? Assume the diameter of the wire is 1mm and that the resistivity roh copper is .0000000178ohmm
89. ## math

a radial arm saw has a circular cutting blade with a diameter of 10 inches. it spins at 200 rpm. what is the linear speed of one of the 12 cutting teeth on a blade?
90. ## Physics

The diameter of the Moon is 3.78x10^6m. It subtends an angle of .00982 radians at the surface of Earth. How far is the Moon from Earth? (Please explain I can't wrap my head around this question.)
91. ## calculus

A conical tank has a diameter of 9ft and is 12 ft deep. If the tank is filled with water of density 62.4 ft/cubic ft, how much work is required to pump the water over the top?
92. ## thermodynamics

if a pump discharges 75 gpm of water whose specific weight is 61.5 lb/ft^3(g=31.95fps^2). find a) the mass flow rate in lb/min, and b) and total time required to fill a vertical cylinder tank 10ft in diameter and 12ft high.
93. ## Biology

A cell has a salt concentration of 0.2 %. If it is placed into a solution with a salt concentration of 0.1 %. a) What change will occur to the salt concentration inside the cell? b)What change will occur to the water concentration inside the cell? c)What
94. ## physical science

Compare the amount of heat required to change the temperature of 150 kg of copper from 12 degrees celcius to 56 degrees celcius to the amount of heat required to change the temperature of 150 kg of gold from 12 degrees celcius to 56 degees celcius.
95. ## chemistry

Data collected from the calorimetry of a metal mass of the metal = 110.62g initial temperature of the water in the cup = 23.0 C initial temperature of the metal in the boiling water = 99.02 C final temperature of the metal AND water in the cup=25.54C
96. ## chemistry

three student chemists measured 50.0 mL of 1.00 M NaOH in separate Styrofoam "coffee cup" calorimeters ( Part B). Brett added 50.0 mL of 1.10 M HCI to his solution of NaOH; Dale added 45.5 mL of 1.10 m HCL 9 eqaul moles) to his NaOH solution. Lyndsay added
97. ## English

I'm writing a term paper for history, and I wondering which is correct: The 1920s was a period of... The 1920s were a period of... The first one sounds correct to me, but I want to be sure that the subject and verb agreed. According to all the information
98. ## Human Geography-Mrs. Sue

Assuming that achieving replacement-level fertility is desirable, is the assumption of 0 years to reach replacement fertility realistic, optimistic, or pessimistic? Why? A) Because achieving replacement-level fertility will not drop until people desire
99. ## Advanced Microeconomics College Level

Information on the price elasticity of demand is particularly importatn to managerial decision making because: A) the higher the price elasticity of demand for a product is, the more profitable it will be to produce more of it. B) depending on the
100. ## physics

The flywheel of a steam engine runs with a constant angular speed of 164 rev/min. When steam is shut off, the friction of the bearings and the air brings the wheel to rest in 1.6 h. I figured out the constant angular acceleration=1.71 rev/min2 but im not