Thursday

April 24, 2014

April 24, 2014

Number of results: 12,014

**statistics**

In a carnival game, a player spins a wheel that stops with the pointer on one (and only one) of three colors. The likelihood of the pointer landing on each color is as follows: 65 percent BLUE, 22 percent RED, and 13 percent GREEN. Note: Your answers should be rounded to three...
*Sunday, March 31, 2013 at 6:24pm by Sydney*

**Physics**

A wheel's uniform angular acceleration is constant. Initially its angular velocity is zero. During the first 1.0 s time interval, it rotates through an angle of 92.0°. -Through what angle does it rotate during the next 1.0 s time interval? -Through what angle during the third ...
*Tuesday, October 9, 2007 at 12:03am by Dante*

**Physics**

Question related to a bicycle dynamo and a wheel. Why a current flows through the bicycle lamp when the wheel of the bicycle turns?
*Tuesday, November 23, 2010 at 11:59am by Billiez*

**physics**

Omar races his bicycle for 152m. A wheel of his bicycle turns 38times as the bicycle travels this distance. What is the diameter of the wheel?
*Monday, January 7, 2013 at 12:20am by Morgan*

**Math**

Juan races his bicycle for 196ft a wheel of his bicycle turns 28 times as the bicycle travels this distance. What is the diameter of the wheel?
*Saturday, April 13, 2013 at 7:06pm by maria*

**algebra**

Justin races his bicycle for 90M . A wheel of his bicycle turns 45 times as the bicycle travels this distance. What is the diameter of the wheel?
*Tuesday, November 12, 2013 at 9:18pm by Anonymous*

**Physics**

the car has wheels of radius 0.3 m and is travelling at a speed of 36 m/s in a straight line and the wheel now describes 40 revolution while the car is brought to rest; calculate the wheels angular acceleration.
*Thursday, May 30, 2013 at 9:12pm by Circular motion*

**Math**

Virginia will spin each spinner once. What is the total number of different outcomes of a color and a number that can occur? the first color wheel is three sections of red, blue and green the other circle has sections of 1-8. Any help would be great and if you can explain in ...
*Friday, May 11, 2012 at 7:48pm by Missy*

**physics**

A 44 m diameter wheel accelerates uniformly about its center from 110 rpm to 320 rpm in 3.9 s. Determine the radial component of the linear acceleration of a point on the edge of the wheel 1.0 s after it has started accelerating.
*Saturday, October 30, 2010 at 11:24pm by Eden*

**physics**

A 44 m diameter wheel accelerates uniformly about its center from 110 rpm to 320 rpm in 3.9 s. Determine the radial component of the linear acceleration of a point on the edge of the wheel 1.0 s after it has started accelerating.
*Sunday, October 31, 2010 at 1:45pm by Eden*

**Physics**

A 44 m diameter wheel accelerates uniformly about its center from 110 rpm to 320 rpm in 3.9 s. Determine the radial component of the linear acceleration of a point on the edge of the wheel 1.0 s after it has started accelerating.
*Sunday, October 31, 2010 at 4:13pm by Corey*

**physics**

A 44 m diameter wheel accelerates uniformly about its center from 110 rpm to 320 rpm in 3.9 s. Determine the radial component of the linear acceleration of a point on the edge of the wheel 1.0 s after it has started accelerating.
*Sunday, October 31, 2010 at 5:08pm by Corey*

**physics**

A 36 cm diameter wheel accelerates uniformly about its center from 150 rpm to 360 rpm in 3.6 s. Determine the radial component of the linear acceleration of a point on the edge of the wheel 1.1 s after it has started accelerating.
*Sunday, November 13, 2011 at 10:51pm by David colon*

**Physics**

A penny is placed at the outer edge of a disk (radius = 0.159 m) that rotates about an axis perpendicular to the plane of the disk at its center. The period of the rotation is 1.50 s. Find the minimum coefficient of friction necessary to allow the penny to rotate along with ...
*Monday, February 20, 2012 at 4:12pm by Jessica*

**Physics**

A penny is placed at the outer edge of a disk (radius = 0.159 m) that rotates about an axis perpendicular to the plane of the disk at its center. The period of the rotation is 1.50 s. Find the minimum coefficient of friction necessary to allow the penny to rotate along with ...
*Monday, February 20, 2012 at 4:23pm by Jessica*

**physics**

A penny is placed at the outer edge of a disk (radius = 0.119 m) that rotates about an axis perpendicular to the plane of the disk at its center. The period of the rotation is 1.70 s. Find the minimum coefficient of friction necessary to allow the penny to rotate along with ...
*Sunday, February 23, 2014 at 9:15pm by Anonymous*

**physics**

An amusement park ride consists of a large vertical cylinder that spins about Figure P6.61 its axis fast enough such that any person inside is held up against the wall persons who walk around on the inner wall of the outer rim. Find the rate of rotation of the wheel (in ...
*Saturday, October 1, 2011 at 9:07pm by Anonymous*

**PHYSICS**

block 3M slides downward without friction. The string connecting blocks 3M and M is ideal (that is, its mass can be neglected and it is not stretchable). The pulley, a uniform solid disc of mass M and radius r , rotates without slipping. Find the acceleration of block 3M.
*Friday, December 6, 2013 at 7:03pm by Ramana*

**momentum**

A playground merry-go-round has a disk-shaped platform that rotates with negligible friction about a vertical axis. The disk has a mass of 230 kg and a radius of 1.6 m. A 38- kg child rides at the center of the merry-go-round while a playmate sets it turning at 0.15rpm. If the...
*Friday, November 20, 2009 at 1:07am by Rachel*

**physics**

The balance wheel of a watch oscillates with angular amplitude 1.7π rad and period 0.64 s. Find (a) the maximum angular speed of the wheel, (b) the angular speed of the wheel at displacement 1.7π/2 rad, and (c) the magnitude of the angular acceleration at ...
*Sunday, January 9, 2011 at 4:50pm by kylie*

**trig**

I have finished the questions for the following, but could someone please check to see if my answers are right because there are no answers for these questions since it's a sheet that my teacher gave us. Ok, just let me know where my errors are and what is the correct answer ...
*Sunday, April 26, 2009 at 5:18pm by Ske*

**science**

In some cases the input force turns the wheel, and the axle exerts the output force, resulting in a mechanical advantage ------------------ than one; exanples are a doorknob a steering wheel, and a screwdriver. Please anwser this question Thanks
*Friday, January 28, 2011 at 8:53pm by Melea*

**physics**

How long does it take a plane, traveling at a speed of 170 m/s, to fly once around a circle whose radius is 2900 m?
*Saturday, October 23, 2010 at 12:01pm by bill*

**Physics**

How long does it take a plane, traveling at a speed of 170 m/s, to fly once around a circle whose radius is 3500 m?
*Sunday, October 30, 2011 at 6:17pm by Jessi*

**Physics**

A star rotates in a circular orbit about the center of its galaxy. The radius of the orbit is 6.2 x 1020 m, and the angular speed of the star is 4.3 x 10-15 rad/s. How long (in years) does it take for the star to make one revolution around the center?
*Tuesday, October 30, 2012 at 5:54pm by Maggie*

**physics**

A star rotates in a circular orbit about the center of its galaxy. The radius of the orbit is 4.4 x 1020 m, and the angular speed of the star is 7.3 x 10-15 rad/s. How long (in years) does it take for the star to make one revolution around the center?
*Tuesday, July 16, 2013 at 1:45pm by simon*

**physics**

The coil of the ac generator rotates at a frequency of f =60.0 Hz and develops an emf of 120 V (rms). The coil has an area of A = 3.0 x 10 -3 m 2 and consists of N = 500 turns. a. Find the magnitude of the magnetic field in which the coil rotates. b. If the total resistance of...
*Saturday, September 17, 2011 at 5:35am by kait*

**physics**

a race car travels 22 m/s around a circular track of radius 142 m/ what is magnitude of the resultant force on the 1400 kg driver answer his car? answer in units of kN. the angle from the wheel to the horizontal is 32 degree..and u= .11
*Sunday, November 21, 2010 at 3:31am by vanessa*

**physics**

Time standards are now based on atomic clocks. A promising second standard is based on pulsars, which are rotating neutron stars (highly compact stars consisting only of neutrons). Some rotate at a rate that is highly stable, sending out a radio beacon that sweeps briefly ...
*Thursday, December 11, 2008 at 7:39pm by johnny*

**Math**

When wheel B turns 4 revolutions, wheel A turns 8 revolutions. When wheel A turns 56 revolutions, how many revolutions does wheel B turn?
*Wednesday, April 20, 2011 at 7:15pm by Kosha*

**Physics**

A circular plate of radius 0.5 m is placed perpendicular to the direction of the magnetic field of 0.5 Tesla. What is the change of flux in the plate if it rotates and its plane becomes parallel to the direction of the magnetic field?
*Friday, May 17, 2013 at 2:08pm by jane*

**algebra**

The wheel in a bicycle has a diameter of 2 feet. if the wheel is turning at 50 rpm (revolutions per minute), how far, in feet, will the bicycle travel in 20 minutes?
*Tuesday, May 14, 2013 at 2:39pm by Aimie*

**physics **

Marks: 4 A circular plate of radius 0.5 m is placed perpendicular to the direction of the magnetic field of 0.5 Tesla. What is the change of flux in the plate if it rotates and its plane becomes parallel to the direction of the magnetic field?
*Sunday, June 12, 2011 at 4:25pm by unknown*

**Sorry, Here's another question plus work**

1. Gold, has a mass of 19.32g for wach cubic centimeter of volume, is most ductile metal and can be pressed into a thin leaf or drawn out into long fiber. -If a sample of gold, with a mass of 27.63g is pressed into a leaf of 1.000micometers thickness, what is the area of the ...
*Thursday, August 31, 2006 at 3:47pm by krystal*

**art**

explain harmonious colors and how they are related on the color wheel Harmonious colours are colours that are next to or near each other on the colour wheel.
*Monday, June 4, 2007 at 8:19pm by jenel*

**U. Phys**

What is the angular momentum of a 3.7kg uniform cylindrical grinding wheel of radius 25cm when rotating at 1500rpm? How much torque(in magnitude) is required to stop it in 5.0s? Could you explain this in detail, I don't really understand torque and momentum well.
*Monday, November 2, 2009 at 10:43am by Taylor*

**physics**

A wheel, starting from rest, has a constant angular acceleration of 1.3 rad/s2. In a 2.5-s interval, it turns through an angle of 98 rad. How long has the wheel been in motion at the start of this 2.5-s interval?
*Monday, March 17, 2008 at 3:14pm by shelby*

**math**

If a flywheel is 3 fee in diameter and if a belt over the wheel is traveling at the rate of 3000 feet per minute, find the number of revolutions of the wheel per minute.
*Friday, September 2, 2011 at 1:18am by Hazel :)*

**physics**

A wheel 80.0 cm in diameter accelerates uniformly from 215 rpm to 360 rpm. If in this process a point on the edge of this wheel have traveled 118 m, how long does this process take?
*Friday, November 18, 2011 at 3:24pm by Alex*

**math **

the outer distance of a bicycle wheel is 95cm how many complete turns does the wheel make when the bicycle travels a distance of 350m?
*Wednesday, July 25, 2012 at 10:54am by Matilda*

**Math**

If a wheel has a nail stuck in the tire, the tire is 60m in diameter and the wheel drove R -234(1,0) how far did the nail travel?
*Sunday, January 27, 2013 at 6:49pm by Ronald*

**physics**

How long does it take a plane, traveling at a constant speed of 160 m/s, to fly once around a circle whose radius is 3450 m?
*Monday, January 24, 2011 at 8:05pm by lucey*

**physics**

How long does it take a plane, traveling at a constant speed of 166 m/s, to fly once around a circle whose radius is 4000 m?
*Sunday, June 30, 2013 at 10:47pm by Justin S.*

**Maths**

Consider the Ferris wheel above. It has an axle standing 38m off the ground and a radius of 35m. The wheel takes 5 minutes to complete one revolution. The wheel moves in clockwise motion and you are sitting in one of the carriages which are horizontally in line with the axle, ...
*Thursday, May 3, 2012 at 11:39pm by Emad*

**Physics**

After fixing a flat tire on a bicycle you give the wheel a spin. Its initial angular speed was 7.35 rad/s and it rotated 15.0 revolutions before coming to rest. What was the average angular acceleration? For what length of time did the wheel rotate?
*Sunday, October 23, 2011 at 8:21pm by Jackie*

**Physics**

There are two wheels with diameter 30 inches and 20 inches. The first wheel covers a certain distance in 240 revolutions. In how many revoluions would the second wheel cover the same distance?
*Thursday, September 30, 2010 at 9:17am by Lost In Studies*

**Physics 111-1**

A wheel, starting from rest, has a constant angular acceleration of 1.8 rad/s2. In a 3.7-s interval, it turns through an angle of 52 rad. How long has the wheel been in motion at the start of this 3.7-s interval?
*Sunday, November 18, 2012 at 10:33pm by Paula*

**physics**

A wheel, starting from rest, has a constant angular acceleration of 1.8 rad/s^2. In a 3.1-s interval, it turns through an angle of 142 rad. How long has the wheel been in motion at the start of this 3.1-s interval?
*Wednesday, April 2, 2014 at 5:39pm by Tsion*

**reading**

In this passage I need to find the main idea and 3 supporting details. You have probably gone on a merry-go-around. Theres one at most theme and carnivals. You find a painted horse or other animal. You climb up on its back. Most of the animals are on the poles. The poles go up...
*Wednesday, April 6, 2011 at 6:51pm by christy*

**physics**

A 5.00 kg mass is connected by a light cord to a 3.00 kg mass on a smooth surface as shown in the figure. The pulley rotates about a frictionless axle and has a moment of inertia of 0.300 k∙m2 and a radius of 0.500 m. Assuming that the cord does not slip on the pulley, ...
*Sunday, November 11, 2012 at 6:30pm by Anonymous*

**trig**

a wheel has a diameter of 18 inches and makes one full turn in 12 seconds and picks up a piece of gym how high off the ground is that piece of gum 18 seconds after the wheel picked it up
*Saturday, September 11, 2010 at 1:21pm by suZANNE*

**Physics**

A fan rotates from rest and accelerates 1 rad per square second for 1 second find the angular velocity if 1 round= 2 pi find the complete no of rounds the fan rotates at constant velocity during second half of its motion
*Tuesday, April 12, 2011 at 3:38am by Zainab*

**physics**

ssm A string trimmer is a tool for cutting grass and weeds; it utilizes a length of nylon "string" that rotates about an axis perpendicular to one end of the string. The string rotates at an angular speed of 56 rev/s, and its tip has a tangential speed of 60 m/s. What is the ...
*Wednesday, November 3, 2010 at 10:16pm by Anonymous*

**physics**

An automobile tire has a radius of 0.335 m, and its center moves forward with a linear speed of v = 24.1 m/s. (a) Determine the angular speed of the wheel. (b) Relative to the axle, what is the tangential speed of a point located 0.243 m from the axle?
*Tuesday, July 16, 2013 at 3:01pm by katie*

**Physics**

A wheel with radius R, mass m, and rotational inertia I rolls without slipping across the ground. If its translational kinetic energy is E, what is its rotational kinetic energy?
*Saturday, March 19, 2011 at 4:36pm by John*

**Physics**

Two current carrying wires cross at right angles as indicated in the figure. If the wires are not restrained, what statement best describes the motion of the wires? Hint: To help you visualize the situation, draw first the magnetic field that Wire 1 makes at the points shown ...
*Monday, March 15, 2010 at 1:54pm by mm.*

**Math (Probability)**

A wheel is divided in to four parts: 1, 10, 50 and 100. What are the following outcomes when you spin the wheel twice and add your result to determine your outcome and the outcomes are 200, more than 100 and less than 500?
*Wednesday, April 20, 2011 at 1:28pm by Aden*

**Physics**

A bicyclist of mass 65 kg stands on pedal. The crank is .170 m long and makes a 45 angle with the vertical. The crank is attached to the chain wheel which is 9.70 cm. What force must the chain exert to keep the wheel from turning?
*Monday, November 12, 2012 at 8:00pm by Angel*

**math**

how do i get the area of a circle????????????? area of a circle=pi * radius * radius huh what huh radius is the measuremnt from the center of the circule so Pi also known as 3.14 multiplyed by radius squared or known as radius times radius
*Thursday, October 26, 2006 at 9:22pm by chemiii*

**Physic Angular momentum and torque**

What is the angular momentum of a 1.0kg uniform cylindrical grinding wheel of radius 19cm when rotating at 1700rpm ?How much torque is required to stop it in 4.6s ?
*Saturday, March 29, 2014 at 11:19am by David*

**physics**

A 12 g CD with a radius of 6.0 cm rotates with an angular speed of 40 rad/s. What is its kinetic energy? What angular speed must the CD have if its kinetic energy is to be doubled?
*Saturday, October 17, 2009 at 10:06pm by angel*

**Physics**

A 3.21 kg mass attached to a light string rotates on a horizontal, frictionless table. The radius of the circle is 0.855 m, and the string can support a mass of 15.3 kg before breaking. What maximum speed can the mass have before the string breaks? Answer in units of m/s
*Tuesday, July 9, 2013 at 2:11pm by Lynn*

**Precalculus**

The figure shows part of a curve traced by a point on the circumference of a circle of radius 4 that rotates, without slipping, around a fixed circle of radius 2. The rotating circle starts with angle t = 0 radians and the point P (x, y) at (10, 0). In this problem you will ...
*Friday, January 20, 2012 at 3:42pm by Anon*

**Physics. PLEASE HELP!!**

A 1.2 m diameter wagon wheel consists of a thin rim having a mass of 11 kg and six spokes, each with a mass of 1.1 kg. Find the moment of inertia of the wagon wheel for rotation about its axis. Answer in units of kg · m2
*Friday, April 20, 2012 at 12:35pm by Amber*

**Calculus**

Suppose a reflector is attached to a 26 inch diameter bike wheel, 8 inches from the center. If the bike wheel rolls without slipping, find parametric equations for the position of the reflector. I thing i use parametrics????
*Sunday, December 9, 2012 at 6:08pm by Reggie*

**Physics**

A centrifuge in a medical laboratory rotates at an angular speed of 3500 rpm (revolutions per minute). When switched off, it rotates 70.0 times before coming to rest. Find the constant angular acceleration of the centrifuge. (Assume the initial direction of rotation is the ...
*Thursday, October 14, 2010 at 9:24pm by Gina*

**Ap Physics**

a 70 kg object sits without sliding on a horizontal platform that rotates at a constant rate of one revolution every 6 seconds about a fixed vertical axis. The object moves on a circle of radius r=2m. If meu is now .4 what is the max distance from the cetner that the object ...
*Thursday, December 16, 2010 at 10:24pm by Emily Gutenber*

**calculus**

A bicycle wheel has a diameter D = 60 cm and the tyre has a cross sectional radius of r = 2.5 cm. The volume V of the inner tube is given by V = pi^2 D r^2 + (8/3*pi*r^3) If air is being pumped into the tyre so that the volume of the inner tube is increasing at the rate of 12 ...
*Saturday, August 11, 2012 at 4:19pm by Becky*

**physics**

A wheel's uniform angular acceleration is constant. Initially its angular velocity is zero. During the first 1.0 s time interval, it rotates through an angle of 90.0°. (a) Through what angle does it rotate during the next 1.0 s time interval? (b) Through what angle during the ...
*Saturday, March 24, 2012 at 8:09pm by Adam*

**Physics**

a 32 kg child stands at the edge of a circular platform that rotates at w=2rad/s about its center. Mass of platform=60kg, radius=2m. The child walks from the rim towards the center. Find the Angular speed when the child reaches a point 0.500 m from the center.
*Friday, December 14, 2012 at 4:35pm by Help!*

**Physics**

In Larry Niven's science-fiction novel Ringworld, a rigid ring of material rotates about a star. The inhabitants of this ring world live on the starlit inner surface of the ring (where it is always noon). The tangential speed of the ring is 1.25x10^6 m/s, its radius is 1.58x10...
*Tuesday, February 11, 2014 at 8:54pm by Anonymous*

**Trigonometry**

The Earth rotates on it's axis once every 24 hours. a)How long does it take Earth to rotate through an angle of 4pi/3? b)How long does it take Earth to rotate through an angle of 210 degrees?
*Wednesday, November 23, 2011 at 8:57am by Rebecca*

**physics**

A 1.62 kg mass attached to a light string rotates on a horizontal, frictionless table. The radius of the circle is 0.986 m, and the string can support a mass of 32.5 kg before breaking. The acceleration of gravity is 9.8 m/s 2 . What maximum speed can the mass have before the ...
*Sunday, January 13, 2013 at 9:35pm by Emily*

**Physics**

In a fairground ride a child of mass 37 kg stands against the inside surface of a circular cylinder of radius 3.9m that rotates around its vertical axis of symmetry. The cylinder has an angular speed of 1.3 rad/s and an angular acceleration of 0.12 rad s^-2. What is the radial...
*Saturday, August 18, 2012 at 7:47pm by Alex*

**Physics**

A wheel's uniform angular acceleration is constant. Initially its angular velocity is zero. During the first 1.0 s time interval, it rotates through an angle of 90.0°. (a) Through what angle does it rotate during the next 1.0 s time interval? (b) Through what angle during the ...
*Sunday, March 25, 2012 at 1:43pm by Adam*

**Physics**

A spherical shell of radius R carries a uniform surface charge density (charge per unit area) \sigma. The center of the sphere is at the origin and the shell rotates with angular velocity \omega (in rad/sec) around the z-axis (z=0 at the origin). Seen from below, the sphere ...
*Friday, April 26, 2013 at 8:37am by Phy*

**Physics HELP!**

A centrifuge in a medical laboratory rotates at an angular speed of 3500 rev/ min. When switched off, it rotates through 41.0 revolutions before coming to rest. (a) Find the angular speed in rad/s. (b) Find the displacement in radians. (c) Find the constant angular ...
*Friday, October 26, 2012 at 4:35pm by Mel*

**Physics**

A 1480 kg automobile has a wheel base (the distance between the axles) of 2.9 m. The center of mass of the automobile is on the center line at a point 1.34 m from the front axle. Find the force exerted by the ground on each back wheel. The acceleration of gravity is 9.8 m/s2. ...
*Saturday, November 9, 2013 at 4:18pm by DW*

**Physics**

A 10kg block is attached to a massless cord that doesn't stretch or sag which is rapped around a disc like wheel, m=5Kg, I= (1/2)mR^2. If the block is allowed to drop straight down held back only by the rotation of the wheel: 1. What is the tension of the rope? 2. What is the ...
*Sunday, May 11, 2008 at 11:26am by Jimmy*

**physics**

A fish takes the bait and pulls on the line with a force of 2.7 N. The fishing reel, which rotates without friction, is a cylinder of radius 0.048 m and mass 0.76 kg. (a) What is the angular acceleration of the fishing reel? ? rad/s2 (b) How much line does the fish pull from ...
*Thursday, October 23, 2008 at 1:55am by kelsey*

**Physics- Elena please help!!!!**

A centrifuge in a medical laboratory rotates at an angular speed of 3500 rev/ min. When switched off, it rotates through 41.0 revolutions before coming to rest. (a) Find the angular speed in rad/s. (b) Find the displacement in radians. (c) Find the constant angular ...
*Monday, October 29, 2012 at 5:14pm by Tom*

**physics**

A 44 m diameter wheel accelerates uniformly about its center from 110 rpm to 320 rpm in 3.9 s. Determine the radial component of the linear acceleration of a point on the edge of the wheel 1.0 s after it has started accelerating. Determine the tangential component of the ...
*Sunday, October 31, 2010 at 5:09pm by Corey*

**College Physics**

A 79 diameter wheel accelerates uniformly about its center from 110 to 360 in 4.5 . 1. Determine its angular acceleration. 2.Determine the radial component of the linear acceleration of a point on the edge of the wheel 1.3 after it has started accelerating. 3.Determine the ...
*Sunday, October 31, 2010 at 8:47pm by Kezie*

**physics help please....**

After fixing a flat tire on a bicycle you give the wheel a spin. (a) If its initial angular speed was 5.17 rad/s and it rotated 10.6 revolutions before coming to rest, what was its average angular acceleration? rad/s2 (b) For what length of time did the wheel rotate? s
*Sunday, October 19, 2008 at 3:31pm by sally*

**College physics**

Consider the two situations. In the first a machine must pull a box up a rough slope at constant speed. The mass of the box is 800 kg, the coefficient of kinetic friction is 0.2, and the slope is inclined at 15 degrees to the horizontal. In the second situation the machine ...
*Tuesday, March 27, 2012 at 1:09pm by Cody*

**physics**

A machine part rotates at an angular speed of 0.77 rad/s; its speed is then increased to 1.76 rad/s using an angular acceleration of 0.29 rad/s 2 . Find the angle through which the part rotates before reaching this ﬁnal speed. Answer in units of rad
*Thursday, December 13, 2012 at 10:23pm by Anonymous*

**physics**

A .7m diameter wheel accelerates uniformly from 160rpm to 280rpm in 4.0s. Determine: a)it's angular acceleration, and b)the radial and tangential components of the linear acceleration of a point on the edge of the wheel 2.0s after it has started accelerating. I want to use the...
*Sunday, April 11, 2010 at 3:14pm by Lila*

**Physic**

A wheel-and-axle system shown consists of two coaxial wheels of radius r = 2 meters and R = 6 meters. The forces applied to the system as shown in the diagram are: F1 = 80 N F2 = 80 N F3 = 40 N F4 = 30 N If counterclockwise is positive, what is the net torque on this system?
*Sunday, November 25, 2012 at 9:09pm by Anonymous*

**Physic**

A wheel-and-axle system shown consists of two coaxial wheels of radius r = 2 meters and R = 6 meters. The forces applied to the system as shown in the diagram are: F1 = 80 N F2 = 80 N F3 = 40 N F4 = 30 N If counterclockwise is positive, what is the net torque on this system?
*Sunday, November 25, 2012 at 9:09pm by Anonymous*

**Healthcare Administration**

Suppose you’re the head of CMS. CMS is now offering reimbursement for wheel chairs suppliers. What would happen if you decide to decrease the reimbursement for wheel chair suppliers?
*Tuesday, March 16, 2010 at 11:52am by Mary*

**physical**

Awheel increases its speed from 45 revolutions per minute to 90 revolutione per minute in 30 seconds.find angular acceralation of the wheel and number of revolution made by this wheel in this 30 seconds.
*Tuesday, May 31, 2011 at 4:46pm by Sostine*

**trigonometry**

If a flywheel is 3 feet in diameter and if a belt over the wheel is traveling at the rate of 3000 feet per minute, find the number of revolutions of the wheel per minute.
*Friday, September 2, 2011 at 1:31am by Marie :)*

**physics**

The drawing shows the top view of two doors. The doors are uniform and identical. Door A rotates about an axis through its left edge, and door B rotates about an axis through its center. The same force is applied perpendicular to each door at its right edge, and the force ...
*Monday, April 14, 2014 at 12:56am by Anonymous*

**physics**

The drawing shows the top view of two doors. The doors are uniform and identical. Door A rotates about an axis through its left edge, and door B rotates about an axis through its center. The same force is applied perpendicular to each door at its right edge, and the force ...
*Tuesday, July 16, 2013 at 3:34pm by john*

**physics**

A wheel is rotating at a rate of 2.2 revolutions every 3.5 s. Through what angle, in radians, does the wheel rotate in 1.0 Angular displacement=angularspeed*time angular speed has to be in radians/sec, and time in seconds.
*Monday, October 23, 2006 at 8:09pm by Anonymous*

**Math**

A wheel on Greg's bicycle is 0.3 m in diameter. Greg races the bicycle for 31 m. How many times does the wheel turn as the bicycle travels this distance?
*Tuesday, May 14, 2013 at 10:26pm by James*

**physics**

If an airplane propeller rotates at 1570 rev/min while the airplane flies at a speed of 333 km/h relative to the ground, what is the linear speed of a point on the tip of the propeller, at radius 1.97 m, as seen by (a) the pilot and (b) an observer on the ground? The plane's ...
*Wednesday, November 9, 2011 at 8:53am by kyle*

**THEORY OF MECHINE**

a brake shoe applied to a drum by a lever ab which is pivoted at a fixed point a and rigidly fixed to the shoe. The radius of the drum is 160mm. The coefficient of friction at the brake lining is 0.3. If the drum rotates clockwise, find the braking torque due to the horizontal...
*Wednesday, January 9, 2013 at 4:11am by RANDHIR KAUSHIK*

**Math**

At her bike factory, Eleanor manufactures two-wheel and three-wheel bikes. She has 96 seats and 212 wheels in inventory. She wants to use all the seats and wheels. How many three-wheelers should she manufacture?
*Monday, April 29, 2013 at 10:55pm by Bailie*

**physics**

A 4.00-kg object is attached to a vertical rod by two strings. The object rotates in a horizontal circle at constant speed 6.00 m/s. What is the tension in the upper string and the lower string. Well your missing information here, in order to compute the centripetal force you ...
*Monday, October 9, 2006 at 2:27pm by Jazz*

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