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?
57,675 results, page 82

Physics
During a tennis serve, a racket is given an angular acceleration of magnitude 155 rad/s2. At the top of the serve, the racket has an angular speed of 13 rad/s. If the distance between the top of the racket and the shoulder is 1.5 m, find the magnitude of the total acceleration... 
chemistry
Use an activity series to identify two metals that will not generate hydrogen gas when treated with an acid. We never did the activity and I don't know what the answer is. Please help. Thank you. Look in your text or notes for the activity series or electromotive force series... 
Science
How does a raw banana relate the second law of thermodynamics to the changes in energy observed in Appendix C. How did the amount of energy gained compare to the amount of energy lost as heat at the second through fourth trophic levels? Considering the amount of energy ... 
Chemistry
a student used a piece of copper with a mass of 2.85g and obtained 2.95g of copper at the end of the experiment, an apparent recovery of 104$. How could the student account for this result, since the best to expect is 100%. 
MATH
A MAN GRASP A ROPE 6M ABOVE THE GROUND, FROM HIS HAND THE ROPE GOES STRAIGHT UP TO A PULLEY 36M ABOVE THE GROUND AND THEN STRAIGHT DOWN TO THE WEIGHT RESTING ON THE GROUND. IF THE MAN, HOLDING FAST TO A ROPE AND KEEPING HIS HAND 6M ABOVE THE GROUND WALKS AWAY AT A CONSTANT ... 
MusicHELP!!
1. What is the quality of the triad if the bottom third is minor and the top third is major? A) Major B) Minor C) Augmented D) Diminished 2. Which part of the triad is in the lowest voices? A) Root B) Third C) Fifth D) Seventh 3. In a major key, which quality is the triad ... 
Math
A ladder 10 ft long rests against a vertical wall. If the bottom of the ladder slides away from the wall at a rate of 1.2 ft/s, how fast is the angle between the ladder and the ground changing when the bottom of the ladder is 8 ft from the wall? Evaluate your answer ... 
math
A hotel has rooms numbered 1 to 1000. One thousand visitors enter the hotel. 1. The first visitor switches on the light switches of every room. 2. The second visitor switches off the light switches of every other room, starting with room 2. 3. The third visitor toggles the ... 
algebra
the body mass index ,I,can be used to determine an individuals risk for heart disease. An index less then 25 indicates a low risk. The body mass index is given by the formula,or model,I=700w/h2, where w = weight,in pounds,and H=height,in inches.Jerome is 72 inches tall.What ... 
stats help please
Suppose that one of every 100 people ina certain community is infected with HIV. You want to identify an HIVpositive person ina study of an experimental new drug. How many individuals would you expect to have to interview in order to find the first person who is HIVpositive... 
physics
The string is pulled so that it accelerates at3 m/s^2. What is the angular acceleration of the wheel? 
Geom
I have a 25cm wheel across how many rotations to go 100000 kilometers 
Math
The diameters of a circle is 50cm how far does the wheel travel for 1 turn 
math
a bicycle wheel made 3.25 revolutions through how many degrees did it turn 
Essay help needed please
Can some one check it Choose apiece of literature you have read and describe how it has affected you. For many people, the image that comes to mind when they hear, the word slavery is the Transatlantic Slave Trade. We think of the buying and selling of people, their shipment ... 
health
What does it mean to change your body image? A. It means changing what you eat B. It means changing how much you eat C. It means changing the way you think about your body D. It means losing weight to fit a Barbie dolllike image C?? 
Physics
Josh starts his sled at the top of a 3.0m high hill that has a constant slope of 25 degrees. After reaching the bottom, he slides across a horizontal patch of snow. The hill is frictionless but the coefficient of kinetic friction between his sled and the snow is .05. How far ... 
math
based on a 150 pound person jogging = 740 cal burned for 5 1/2 mi/hr if a person jogs at a rate of 5 1/2 mi/h for 3 1/2 h in a week how many calories do they burn. Multiply 3 1/2 by 740. 
physics
A person jumps from a window 57 meters high and is caught in a firefighter's net which stretches 0.6 meter. To the nearest tenth of a m/s^2, what is the magnitude of the person's acceleration in the net? 
physics
A person is standing at the edge of the water and looking out at the ocean. The height of the person's eyes above the water is h = 1.6m. and the radius of the earth is R = 6.38 X 10^6 m. (a) How far is it to the horizon? 
College Physics
A person jumps from a window 34 meters high and is caught in a firefighter's net which stretches 0.6 meter. To the nearest m/s^2, what is the magnitude of the person's acceleration in the net? 
Math
A certain person burn 6.5 calories per minute while walking how many calories will be burned if that person wants for 3 hours round your answer to the nearest tenth 
Chemistry
Explain the significance of positive and negative values for each thermodynamic quantity in the free energy equation. (enthalpy change, entropy change, and free energy change) I think this is something you can find in your text/notes. If not, explain what you don't understand ... 
Pre calculus/ Advanced Functions
Samuel is investigating the rate of change of the function f(x) = cos x on the interval xE[0, 2pi]. He notices that the graph of f(x) passes through the xaxis at pi/2. He also determines the instantaneous rate of change at x = 0, pi and 2pi by inspection. Based on this ... 
ENG 098
Can you convince people NOT to eat Oreos? Think of a famous person like an athlete, an actor, politician, or talk show hosts. Write two paragraphs: one to convince this person to purchase OREOS and another to convince this person not to purchase OREOS. You will want to use ... 
writing skills
(1)A number of States have adopted nofault auto insurance,but what is it exactly?(2)Lets say that two drivers are involved in an auto accident,and one is injured.(3)The injured driver must prove that the other driver was at fault, or liable, at least under the rules of ... 
math
From the foot of a building I have to look upwards at an angle of 22° to sight the top of a tree. From the top of a building, 150 meters above ground level, I have to look down at an angle of depression of 50° to look at the top of the tree. a. How tall is the tree? b. How ... 
college
How others view a person can influence how that person views his or her environment and those in his or her environment 
english
hi again why is mentally retarded person not like a normal person is what i meant thanks again 
English
What is a monologue? Can it be what a person thinks right at that moment or is it what a person thinks after an event? 
First person?  Language Arts
Hi, okay so when I write in first person do I call myself "I" or "Cassidy"? 
MATH
Create a graph of a function given the following information: The instantaneous rate of change at x = 2 is zero. The instantaneous rate of change at x = 3 is negative. The average rate of change on the interval 0 <x <4 is zero. 
English
1. Look at the top left building in the picture. 2. Look at the bottom right building. It's name is Brownstone Middle School. When was it built? It was built 70 years ago. 3. What about Town Bank? We can not get any information from the script, so we don't know when it was ... 
Physics
Two large parallel plates are separated by a small gap of distance 2 mm. See figure below. A fluid with dynamic viscosity µ = 103 Pa.s fills the gap between the plates. The surface area of each side of the plates is 2 m2. The top plate has a velocity 2.0 m/s in the x... 
calculus
In electrical engineering, a continuous function like f(t)=sin(t), where t is in seconds, is referred to as an analog signal. To digitize the signal, we sample f(t) every ∆t seconds to form the sequence Sn= f(n∆t). For example, sampling f every 1/10 second produces the ... 
ENVIRO SCIENCE
1.Between 1950 and 2004, the world population increased exponentially from 2.5 billion to 6.4 billion, what is the percent change? 2.Calculate the percent decrease if there are 620 incoming freshmen and 500 graduated seniors? percent change: (amount change/initial value ) x ... 
Math
A circular swimming pool is 4 feet deep and has a diameter of 15 feet. If it takes 7.5 gallons of water to fill one cubic foot, to the nearest whole number, how many gallons are needed to fill this swimming pool. Diameter = 2r A = π r^2 V = 4A W = 7.5V 
Chemistry
To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy must the electrons have in order to resolve a protein molecule that is 2.10 nm in diameter? Take the mass of an electron to be 9.11... 
College Physics
A 57.0 cheerleader uses an oilfilled hydraulic lift to hold four 110 football players at a height of 1.40 . If her piston is 19.0 in diameter, what is the diameter of the football players' piston? The density of the oil in the hydraulic system is 900 kg/m^3. 
maths
A cylindrical tin 8cm in diameter contains water to a depth of 4cm. if a cylindrical wooden rod 4cm in diameter and 6cm long is placed in the tin it floats exactly half submerged. what is the New depth of water 
maths
A cylindrical tin 8cm in diameter contains water to a depth of 4cm. if a cylindrical wooden rod 4cm in diameter and 6cm long is placed in the tin it floats exactly half submerged. what is the New depth of water 
PHYSICS
1.Suppose you wish to whirl a pail full of water in a vertical circle without spilling any of its contents. If your arm is 0.99 m long (from shoulder to fist) and the distance from the handle to the surface of the water is 20.5 cm, what minimum speed is required? 2.A 1010 kg ... 
Maximal area and dimensions of a window
Hey Jiskha, came across this problem in my maths homework and I can't seem to solve it. Can someone maybe help me out? A Norman window has the shape of a rectangle with a semi circle on top; diameter of the semicircle exactly matches the width of the rectangle. Find the ... 
physics
A simple pendulum consists of a light string 1.70 m long with a small 0.490 kg mass attached. The pendulum starts out at 45^\circ below the horizontal and is given an initial downward speed of 1.50 m/s. At the bottom of the arc, determine the centripetal acceleration of the ... 
physics
A simple pendulum consists of a light string 1.70 m long with a small 0.490 kg mass attached. The pendulum starts out at 45^\circ below the horizontal and is given an initial downward speed of 1.50 m/s. At the bottom of the arc, determine the centripetal acceleration of the ... 
Physics
A simple pendulum consists of a light string 1.70 m long with a small 0.490 kg mass attached. The pendulum starts out at 45^\circ below the horizontal and is given an initial downward speed of 1.50 m/s. At the bottom of the arc, determine the centripetal acceleration of the ... 
chemistry
A spherical rubber balloon has an initial thickness of 0.45mm, and diameter 250mm. Final diameter of 1000mm. Find final thickness, true stress in the plane of the balloon wall, Air pressure required. (Assume rubber is idea and obeys Guassian statistics, and take the shear ... 
Chemistry
A spherical rubber balloon has an initial thickness of 0.45mm, and diameter 250mm. Final diameter of 1000mm. Find final thickness, true stress in the plane of the balloon wall, Air pressure required. (Assume rubber is idea and obeys Guassian statistics, and take the shear ... 
Math
Find the volume of water required to fill a pool with a diameter of 6m and a height of 2m. Keep in mind that the water must travel through a hose before it goes into the pool. Assume the hose is a perfect cylinder. The length of the hose is 8m and the diameter of the inner ... 
Economics305
We make choices as consumers every day. Opportunity cost is defined as a person’s "next best alternative" or "the cost of what you give up when you make a choice." Think of a recent decision you made regarding your career. What was your opportunity cost for making that ... 
physics
A horizontal pipe 17.00 cm in diameter has a smooth reduction to a pipe 8.50 cm in diameter. If the pressure of the water in the larger pipe is 8.00 104 Pa and the pressure in the smaller pipe is 6.00 104 Pa, at what rate does water flow through the pipes? The velocity is the ... 
CHEMISTRY
to resolve an object in an electron microscope the wavelength of the electrons must be close to the diameter of the object. What kinetic energy must the electrons have in order to resolve a protein molecule that is 7.90 nm in diameter? Take the mass of an electron to be 9.11*... 
physics
In the sketch, the small hydraulic piston has a diameter of 2.5cm cm . The large piston has a diameter of 6.4cm cm . For each newton of force applied to the small piston, how many newtons of force are exerted by the large piston? Express your answer using two significant figures. 
FLUID MECHANICS
Water flows at a rate of 0.040 m3/s in a 0.15 m diameter pipe that contains a sudden contraction section to a 0.06 m diameter pipe. Determine the pressure drop across the contraction section. Determine also the pressure difference due to the losses. 
Chemistry
Please check the following. 1. What is the empirical formula of the compound C6O6H14? A. C3O3H7 B. CO2H C. C12O12H28 D. COH2 My answer: A.C3O3H7 2. The diameter of an atom is approximately 1x10^10 meter. What is the diameter in millimeters? A. 1 x10^12 mm B. 1 x10^13 mm C. ... 
Applications of functions
you have 20 gallons of gas in your car and you burn one gallon every 25 miles. write a function rule for the amount of fuel left in the car after every 25 miles 
Mathstats
I am having so much trouble calculating Type 2 error in simple questions, can someone pleaseeeee help me by explaining what to do? Let ƒÊ denote the true average diameter for bearings of a certain type. A test of Ho: ƒÊ = 0.5 versus Ha: ƒÊ ‚ 0.5 will be based on a ... 
Geometry
a cone full of water has been poured intoa cylinder. what is the depth of thewater in the cylinder? the cone has a height of 15m and a diameter of 20m. the cylinder also has a diameter of 20m and the amount of water in the cylinder is d meters high. 
chemistry
To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy must the electrons have in order to resolve a protein molecule that is 8.10 nm in diameter? Take the mass of an electron to be 9.11... 
chemistry
To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy must the electrons have in order to resolve a protein molecule that is 8.10 nm in diameter? Take the mass of an electron to be 9.11... 
Chemistry
To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy must the electrons have in order to resolve a protein molecule that is 5.40 nm in diameter? Take the mass of an electron to be 9.11... 
chemistry
To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy must the electrons have in order to resolve a protein molecule that is 4.70 nm in diameter? Take the mass of an electron to be 9.11... 
chemistry
To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy must the electrons have in order to resolve a protein molecule that is 7.00 nm in diameter? Take the mass of an electron to be 9.11... 
maths
A cylindrical tin 8cm in diameter contains water to depth of 4cm.If a cylindrical wooden rod 4cm in diameter and 6cm long is placed in the tin or floats exactly half 2.what is the New depth of water 
physics
The 3.0 cm diameter water line in the figure splits into two 1.0 cm diameter pipes. All pipes are circular and at the same elevation. At point A, the water speed is 2.0 m/s and the gauge pressure is 50 kPa. What is the gauge pressure at point B? 
physics
A person is standing at the edge of the water and looking out at the ocean (see figure). The height of the person's eyes above the water is h = 1.9 m, and the radius of the Earth is R = 6.38 x 106 m. (a) How far is it to the horizon? In other words, what is the distance d from... 
science. _
Okk so im not asking for answers, i just need somone to expplain this homework to me! I don't get it what so ever. So the homework tittle is Weight in space. So it has a whole discripition in wjich i will write dpwn for you. The paper says: Gravity is an invisible force that ... 
Health/ Basic Clinical Procedures
please check my answer thanks An objective sign is one that A can be observed by another person B precedes a disease C is felt by the patient and can not be obsserved by another person D causes the pt the most trouble I picked A 
Physical Science
A person dives off the edge of a cliff 33m above the surface of the sea below. Assuming that air resistance is negligible, (a) How long does it dive last? (b) and with what speed does the person enter the water? 
look adverb and verbs
The farmers need to water them every day is this correct answer water every day 
Math
Jesse spends 1 hour every Tuesday exercising.He spends 2 hours every Saturday. How many hours does he get in 3 weeks? 
calculus
Find the average rate of change f(x)=x^38x+9 a. from 3 to 2 b. from 1 to 5 c. from 5 to 9 A. what is average rate of change of f(x)=x^38x+9 from 3 to 2? B. what is the average rate of change of f(x)x^38x+9 from 1 to 5? C. what is the average rate of change of f(x)=x^... 
calculus
Find an expression for the function whose graph is the given curve. a) The bottom half of the parabola x+(y1)^2=0 b) The top half of the circle (x1)^2 + y^2= 0 I think I have a vague idea of what I need to have in my expression for b; I know it's a circle with a center (1,0... 
physics
To anticipate a dip and a bump in the road the driver of a car applies her break to produce ga uniform deceleration . Her speed is 100km/hr at the bottom A of the dip and 50km/hr at the top C of the hump which is 120m along the road from A . If the passengers experiences a ... 
physicstorque
A person is doing leg lifts with 3.0kg ankle weights. She is sitting in a chair with her legs bent at a right angle initially. The quadriceps muscles are attached to the patella via a tendon; the patella is connected to the tibia by the patellar tendon, which attaches to bone... 
Physics  drwls?
A 2000 kg truck traveling north at 38 km/hr turns east and accelerates to 55 km/hr. What is the change in the truck's kinetic energy? What is the magnitude of the change in the linear momentum of the truck? What is the direction of the change in linear momentum of the truck? (... 
college essay help me
can someone check my essay now thanks Choose apiece of literature you have read and describe how it has affected you. For many people, the image that comes to mind when they hear, the word slavery is the Transatlantic Slave Trade. We think of the buying and selling of people, ... 
trig
A geologist stands on the shore of a lake in Ontario with a theodolite and finds that the angle of inclination to the top of a distant rock pillar is 28.5 degrees. He then walks 10 m along the shore at a 90 degree angle to his measurment, and finds that the angle to the same ... 
trig
A geologist stands on the shore of a lake in Ontario with a theodolite and finds that the angle of inclination to the top of a distant rock pillar is 28.5 degrees. He then walks 10 m along the shore at a 90 degree angle to his measurment, and finds that the angle to the same ... 
math
the needle of the scale in bulk food section of a supermarket is 25 cm long. find the distance when the needle rotates 50 degrees 
pre cal
if a 22 inch tire rotates 40 times per 2 minutes, determine the linear and angular speed of the tire. 
pre cal
If an 22inch tire rotates 40 times per 2 minute, determine th elinear and angular speed of the tire. 
Math
If a turntable rotates through 720 degrees in one second, how many revolutions does it make in one minute. 120? 
Statistics
You are a buyer bidding on a lot of 10,000 uncut diamonds. You select 100 stones at random, sight unseen, from the lot. The average weight is 0.98 ct with a standard deviation in the sample of 0.11 ct. What is the 95% confidence interval for the average weight of a stone in ... 
UNM
In an airconditioned room at 19.0C , a spherical balloon had the diameter of 50.0cm . When taken outside on a hot summer day, the balloon expanded to 51.0cm in diameter. What was the temperature outside? Assume that the balloon is a perfect sphere and that the pressure and ... 
Grammar and Composition
I need to change my original paragraph, to improve it, by making these changes: It just restates the well dressed part. It does not develop it. how is he well dressed? How does his clothing appear. Examples of clothing. here's my original paragraph: The way one person would ... 
Physics
Please someone help me I'm desperate!!!! Two steel guitar strings have the same length. String A has a diameter of 0.59 mm and is under 420.0 N of tension. String B has a diameter of 1.3 mm and is under a tension of 840.0N . Find the ratio of the wave speeds,VA/VB , in these ... 
Math
The electrical resistance, r ohms, of 1,000 ft of solid copper wire at 77¡ãF can be approximated by the model r = 10,770 / d^2  0.37 for any wire diameter, d mils (1 mil = 0.001 inch), such that 5 ¡Ü d ¡Ü 100. What is the approximate resistance, in ohms, for such with a... 
Biochemistry
If the same amount of heat is added to equal masses of each of the following substances, which substance will undergo the largest temperature change? Substance Specific heat(j/gC) Al (s) 0.90 Cl2(g) 0.48 C6H6(l) 1.7 H2O (l) 4.2 NaCl(s) 0.87 temp. change = 1/S.H. (specific heat... 
Health
3. All drugs are not medicines because not all drugs are used to cure, prevent, of treat illness or discomfort. In fact, some drugs possess mindaltering effects that have no medical purpose such as drugs of abuse, which alters the manner in which the brain functions in means ... 
economics
Question 4 (1.00 points) The multiplier effect indicates that: a. a decline in the interest rate will cause a proportionately larger increase in investment. b. a change in spending will change aggregate income by a larger amount. c. a change in spending will increase aggregate... 
Chemistry
The water loss by the sample, and the precent by weight of the water in the unknown hydrates 34.78%H2O. which of the ten possible hydrates are the most likely ones to be your unknown based on the percent by weight? 
aed
Five Top Strategies to Keep Students Learning in a Calm Classroom Environment Strategy number 5 – Keep the lesson moving.(Classroom Expectations and Procedures for Two Different Age Groups ) (TimeManagement Strategies for Continuity) If you have a fortyfive minute period, ... 
English
Holidays are important to everyone. They boost your spirits. a. Correct b. Shift in person I would say it is correct, but then again isn't Everyone a singular prnoun? 2. After the teacher collected our essays, she told the students that she would return the graded papers on ... 
Science
The weight of an object is the product of its mass, m, and the acceleration of gravity, g (where g=9.8 m/s2). If an object’s mass is m=58.5 grams, what is its weight? Same goes to 45.93 grams. If you could answer as soon as possible that would be great! 
Physics
At a distance H above the surface of a planet, the true weight of a remote probe is six percent less than its true weight on the surface. The radius of the planet is R. Find the ratio H/R. 
Physics
At a distance H above the surface of a planet, the true weight of a remote probe is six percent less than its true weight on the surface. The radius of the planet is R. Find the ratio H/R. 
English
1.I'm worried about my looks. I want to become more handsome. What should I do?  Why don't you have cosmetic surgery? 2. I'm worried about my height. I am short. I want to become taller. What should I do?  Why don't you jump rope every day? 3. I'm worried about my weight. I'... 
English
Hello. I'll be very grateful if you help me with a few questions. 1)I know that the sentence "Why are you always late" correct, but is it possible to say "Why are you always being late" to show that it happens very often? 2)Do you think it's possible to use "every time" in the... 
computer science
You are required to use the Account class to simulate an ATM machine. Create ten accounts in an array with id 0, 1, 2 ...9, and initial balance $50. The system prompts the user to enter an id. If the id is entered incorrectly, ask the user to enter a correct id. Once an id is ...