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August 23, 2014

Search: A 53.2-cm diameter disk rotates .

Number of results: 4,798

physics
A 49.7-cm diameter disk rotates with a constant angular acceleration of 2.7 rad/s2. It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3 with the positive x-axis at this time.
October 23, 2010 by Anonymous

Plane Trigonometry
A compact disk is 12 cm in diameter & rotates at 100 rpm when being played. The hole in the center is 1.5 cm in diameter. Find the speed in cm/min of a point on the disk & the speed of a point on the inner edge.
January 4, 2011 by Willoby

physics
A 44.3-cm diameter disk rotates with a constant angular acceleration of 2.3 rad/s2. It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3 with the positive x-axis at this time. (a) Find the ...
November 5, 2009 by josh

Physics 1
The hard disk in a laptop computer contains a small disk that rotates at a rate of 5000 rpm. If this disk has a radius of 2.3 cm, what is the centripetal acceleration of a point at the edge of the disk?_____m/s^2
October 3, 2012 by John

Physics 1
The hard disk in a laptop computer contains a small disk that rotates at a rate of 5000 rpm. If this disk has a radius of 2.3 cm, what is the centripetal acceleration of a point at the edge of the disk?_____m/s^2
October 4, 2012 by John

physics
A compact disk player has just been turned off. A disk decelerates uniformly from an initial angular velocity of 7.90 rev/s. The disk rotates through 5.50 revolutions before coming to rest. What is the tangential acceleration of a point on the disk 5.05 cm from the axis?
March 24, 2014 by Anonymous

phys
A disk with a rotational inertia of 2.0 kg.m^2 and a radius of 0.40 m rotates on a frictionless fixed axis perpendicular to the disk faces and through its center. A force of 5.0 N is applied tangentially to the rim. The angular acceleration of the disk is:
May 1, 2014 by jay

Physics
A compact disk rotates from rest to 500 rev/min. in 5.5s. a) What is the angular acceleration assuming it is constant. b) How many revolutions does the disk make in 5.5 s. c) How far does a point on the rim 6 cm from the center of the disk traveling during the 5.5 s.
April 4, 2013 by Jenny

Physics
Starting from rest, a disk rotates about its central axis with constant angular acceleration. In 6.00 s, it rotates 28.0 rad. During that time, what are the magnitudes of (a) the angular acceleration and (b) the average angular velocity? (c) What is the instantaneous angular ...
November 25, 2011 by S.Jacob

physics
A thin, light horizontal string is wrapped around the rim of a 4.00-kg solid uniform disk that is 30.0 cm in diameter. A box is connected to the right end of the string and moves to the right along the ground horizontally with no friction. The box is subjected to a horizontal ...
December 4, 2012 by toby

physics
The 17.9 cm diameter disk rotates on an axle through its center. F1=22.1 N, F2=32.4 N, F3=32.4 N, F4=22.1 N, and d=4.74 cm. What is the net torque about the axle?
October 12, 2008 by Sara

physics
The 17.9 cm diameter disk rotates on an axle through its center. F1=22.1 N, F2=32.4 N, F3=32.4 N, F4=22.1 N, and d=4.74 cm. What is the net torque about the axle?
October 15, 2008 by Adam

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 ...
February 20, 2012 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 ...
February 20, 2012 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 ...
February 23, 2014 by Anonymous

Physics Help
A 3.50-inch floppy disk in a computer rotates with a period of 2.02E-1 s. What is the angular speed of the disk?
November 30, 2012 by Na

Physics
A solid disk rotates in the horizontal plane at an angular velocity of 0.034 rad/s with respect to an axis perpendicular to the disk at its center. The moment of inertia of the disk is 0.11 kgm2. From above, sand is dropped straight down onto this rotating disk, so that a ...
August 16, 2011 by Kristi

Physics
A solid disk rotates in the horizontal plane at an angular velocity of 0.036 rad/s with respect to an axis perpendicular to the disk at its center. The moment of inertia of the disk is 0.17 kg m2. From above, sand is dropped straight down onto this rotating disk, so that a ...
November 1, 2011 by jason

science
A uniform disk with radius 0.320m and mass 28.0kg rotates in a horizontal plane on a frictionless vertical axle that passes through the center of the disk. The angle through which the disk has turned varies with time according to (t)= (1.20rad/s)t + (8.70rad/s^2)t^2 my ...
June 9, 2014 by Mona

Physics
A steady horizontal force F if magnitude 21N is apllied at the axle of a solid disk. the disk has mass 2.0kg and diameter of 0.10m. What is the linear speed of the center of the disk after it has moved 12m?
February 18, 2008 by Nick

physics
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 240 kg and a radius of 1.4 m. A 33- kg child rides at the center of the merry-go-round while a playmate sets it turning at 0.20rpm. If the...
November 18, 2009 by kate

Physics
A turntable with a moment of inertia of 0.017 kg*m^2 rotates feely at 3.3 rad/s. A circular disk of mass 240 g and diameter 26 cm, and initially not rotating, slips down a spindle and lands on the turntable.
December 4, 2011 by John

Physics
A children merry go round in the consist of 300 kg solid horizontal disk of radius 8.5 m. It rotates at a speed of .25 revolution per second while a person of mass 150 km takes a ride at the edge of the disk. How fast will the disk be rotating if the person walks 4m along the ...
December 14, 2013 by Tsunayoshi

Physics
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 240 kg and a radius of 1.4 m. A 33- kg child rides at the center of the merry-go-round while a playmate sets it turning at 0.20rpm. If the...
November 19, 2009 by Rachel

physics
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 210 kg and a radius of 1.8 m. A 35- kg child rides at the center of the merry-go-round while a playmate sets it turning at 0.10rpm. If the...
November 23, 2009 by john

physics
A thin, light string is wrapped around the rim of a 4.00kg solid uniform disk that is 30.0cm in diameter. A person pulls on the string with a constant force of 100N tangent to the disk. Find the linear acceleration of its center of mass. If the disk is replaced by a hollow ...
April 12, 2008 by Erin

Calc Physics
A disk with a mass of 17 kg, a diameter of 25 cm, and a thickness of 8 cm is mounted on a rough horizontal axle as shown on the left in the figure. (There is a friction force between the axle and the disk.) The disk is initially at rest. A constant force, F = 70 N, is applied ...
February 20, 2013 by Dehia

maths-help please?
A cicular opaque disk, 25cm in diameter, is set up 30 cm from a circular source of light of diameter 40 cm. A screen is placed 30cm beyond the opaque disk. Describe, giving dimensions, the nature of the shadow on the screen.
August 30, 2012 by Sab

Physic
A machine part is made from a uniform solid disk of radius R = 0.161 m and mass M = 7.75 kg. A hole of radius R/2 is drilled into the disk, with the center of the hole at a distance R/2 from the center of the disk (the diameter of the hole spans from the center of the disk to ...
November 28, 2011 by jean

Physics
A disk rotates on the horizontal. A blcok is hanging from the tisc, which forms an angle with the vertical of 45 degrees while the disk turns. The radius of the disc is .1mm and the length of the string is .06 m. Determine the velocity of rotation for the system.
November 9, 2012 by Leslie

Physics
A disk rotates on the horizontal. A blcok is hanging from the tisc, which forms an angle with the vertical of 45 degrees while the disk turns. The radius of the disc is .1mm and the length of the string is .06 m. Determine the velocity of rotation for the system.
November 11, 2012 by Krystina

maths/physics
Please I need some help with this question A cicular opaque disk, 25cm in diameter, is set up 30 cm from a circular source of light of diameter 40 cm. A screen is placed 30cm beyond the opaque disk. Describe, giving dimensions, the nature of the shadow on the screen.
August 30, 2012 by Sab

Physics
A turntable with a moment of inertia of 0.029 kg*m^2 rotates feely at 2.8 rad/s. A circular disk of mass 270 g and diameter 20 cm, and initially not rotating, slips down a spindle and lands on the turntable. a) Find the new angular speed. b) What is the change in kinetic energy?
May 10, 2011 by Unknown

Physics
A turntable with a moment of inertia of 0.017 kg*m^2 rotates feely at 3.3 rad/s. A circular disk of mass 240 g and diameter 26 cm, and initially not rotating, slips down a spindle and lands on the turntable. a) Find the new angular speed. b) what is the change in kinetic energy?
December 4, 2011 by John

maths
please help A circular opaque disk, 25 cm in diameter, is set up 30 cm from a circular source of light of diameter 40 cm. A screen is placed 30 cm beyond the opaque disk. Describe, giving dimensions, the nature of the shadow on the screen
August 27, 2012 by SABRINA

maths
Can someone help please? A circular opaque disk, 25 cm in diameter, is set up 30 cm from a circular source of light of diameter 40 cm. A screen is placed 30 cm beyond the opaque disk. Describe, giving dimensions, the nature of the shadow on the screen
August 27, 2012 by Sabrina

maths/physics
Need help..... A circular opaque disk, 25 cm in diameter, is set up 30 cm from a circular source of light of diameter 40 cm. A screen is placed 30 cm beyond the opaque disk. Describe, giving dimensions, the nature of the shadow on the screen
August 28, 2012 by Sab

Physics
A machine part is made from a uniform solid disk of radius R and mass M. A hole of radius R/2 is drilled into the disk, with the center of the hole at a distance R/2 from the center of the disk (the diameter of the hole spans from the center of the disk to its outer edge). ...
October 24, 2011 by mymi

physics
a high speed sander has a disk of 2.74 cm in radius that rotates its disks about the axis at a constant rate of 503 rev/min. determine the linear speed of a point 2.33 cm from the disk's center. answer in units of m/s
October 18, 2007 by Will

PHYSICS
A 54.0-cm diameter disk rotates with a constant angular acceleration of 2.0 rad/s2. It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3 with the positive x-axis at this time. Find the position ...
July 13, 2011 by Kevin

Physics
A disk with a mass of 13 kg, a diameter of 25 cm, and a thickness of 8 cm is mounted on a rough horizontal axle as shown on the left in the figure. (There is a friction force between the axle and the disk.) The disk is initially at rest. A constant force, F = 70 N,is applied ...
October 25, 2010 by Donny

Physics
A 46.5-cm diameter disk rotates with a constant angular acceleration of 2.4 rad/s2. It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3 with the positive x-axis at this time. (Hint: Remember the...
November 30, 2009 by Ed

Physics
A 46.5-cm diameter disk rotates with a constant angular acceleration of 2.4 rad/s2. It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3 with the positive x-axis at this time. (Hint: Remember the...
November 28, 2009 by Ed

physics
What is the tangential acceleration of a bug on the rim of a 12.0 in. diameter disk if the disk moves from rest to an angular speed of 75 rev/min in 4.0 s?
November 21, 2009 by lynette

physics
20 kg , 30 cm diameter disk is spinning at 300 rpm. How much friction force must be applied to rim to bring the disk to a halt in 3.0s?
December 15, 2010 by Justin

physics
A turntable with a moment of inertia of 0.014 kg*m2 rotates feely at 2.7 rad/s. A circular disk of mass 500 g and diameter 22 cm, and initially not rotating, slips down a spindle and lands on the turntable. a) Find the new angular speed. rad/s b) what is the change in kinetic...
December 11, 2010 by applebottom

physics
A high-speed sander has a disk 8.00 cm in radius that rotates about its axis at a constant rate of 1100 revolutions per minute. Determine the angular speed of the disk in radians per second.
March 7, 2012 by Joe

Physics
A disk with a mass of 18 kg, a diameter of 50 cm, and a thickness of 8 cm is mounted on a rough horizontal axle as shown on the left in the figure. (There is a friction force between the axle and the disk.) The disk is initially at rest. A constant force, F = 70 N,is applied ...
October 24, 2010 by Donny

physics
A force of 100 N is applied tangentially to a disk of radius 10 cm and mass 0.5 kg. the disk is initially at rest. What is the angular acceleration of the disk? How many revolutions does the disk goes through after 10 sec. How much rotational work was done on the disk?
December 4, 2010 by Maa

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...
November 20, 2009 by Rachel

Physics
The 1.4 kg, 40-cm-diameter disk in the figure below is spinning at 260 rpm. How much friction force must the brake apply to the rim to bring the disk to a halt in 4.5 s?
November 18, 2010 by sara

Angular Velocity Question
A disk with a mass of 18 kg, a diameter of 50 cm, and a thickness of 8 cm is mounted on a rough horizontal axle as shown on the left in the figure. (There is a friction force between the axle and the disk.) The disk is initially at rest. A constant force, F = 70 N,is applied ...
October 25, 2010 by Oscar

math
a circular opaque disk, 25 cm in diameter, is set up 30 cm from a circular source of light of diameter 40 cm. Ascreen is placed 30 cm beyond the opaque disk. Describe, giving dimensions, the nature of the shadow on the screen. Ok, I have drawn a sketch and can say that the ...
August 27, 2012 by SABRINA

math
Mr. Fleep had a new flying disk design. He made some calculations and decided if he could make a flying disk that had a perimeter exactly 4 times the diameter that it would be more aerodynamically stable than a "standard" flying disk and thus fly further. Is this design ...
March 13, 2012 by HELP HELP HELP

physics
starting from rest, a disk rotates about its central axis with constant angular acceleration. In 4 seconds, it has rotated 50 rad. What was the angualr acceleration during this time? What is the instantaneous angular velocity of the disk at the end of teh 4 seconds?
January 27, 2008 by Kristen

Physics
The 3.1 , 38-cm-diameter disk in the figure is spinning at 310 . How much friction force must the brake apply to the rim to bring the disk to a halt in 2.6 ? Express your answer using two significant figures.
November 13, 2012 by Amy

physics
A compact disk, which has a diameter of 12.0 cm, speeds up uniformly from zero to 4.40 rev/s in 3.20 s. What is the tangential acceleration of a point on the outer rim of the disk at the moment when its angular speed is 2.00(rev/s)?
October 17, 2009 by angel

college physics
A compact disk, which has a diameter of 12.0 cm, speeds up uniformly from zero to 4.40 rev/s in 3.20 s What is the tangential acceleration of a point on the outer rim of the disk at the moment when its angular speed is 3.00 {rev/s}?
October 18, 2009 by carman

phsyics
A compact disk, which has a diameter of 12.0 cm, speeds up uniformly from zero to 2.50 rev/s in 2.10 s. What is the tangential acceleration of a point on the outer rim of the disk at the moment when its angular speed is the following values? (a) 2.00 rev/s
October 24, 2010 by mary

Physics
A solid cylindrical disk has a radius of 0.18 m. It is mounted to an axle that is perpendicular to the circular end of the disk at its center. When a 40-N force is applied tangentially to the disk, perpendicular to the radius, the disk acquires an angular acceleration of 90 ...
November 22, 2011 by Kelsey

Physics helppp
The figure below shows an arrangement in which four disks are suspended by cords. The longer, top cord loops over a frictionless pulley and pulls with a force of magnitude 80 N on the wall to which it is attached. The tensions in the shorter cords are T1 = 45.0 N, T2 = 37.3 N...
July 13, 2010 by Sam

physics
A solid cylindrical disk has a radius of 0.17 m. It is mounted to an axle that is perpendicular to the circular end of the disk at its center. When a 35-N force is applied tangentially to the disk, perpendicular to the radius, the disk acquires an angular acceleration of 100 ...
November 30, 2010 by mackenzie m

physics angular velocity
A 20g steel weight is placed on the edge of 1 30cm diameter plastic disk. The coefficient of static friction between the steel weight and plastic disk is 0.4. At what angular velocity will the weight slide off the disk?
March 25, 2013 by Kristy

physics
The figure shows an overhead view of a uniform 2.00-kg plastic rod of length 1.20 m on a very slick table. One end of the rod is attached to the table, and the rod is free to pivot about this point without friction. A disk of mass 36.0 g slides without friction toward the ...
December 2, 2012 by HALP!!!

physics
(a) What is the tangential acceleration of a bug on the rim of a 6.0 in. diameter disk if the disk moves from rest to an angular speed of 79 rev/min in 5.0 s? m/s2 (b) When the disk is at its final speed, what is the tangential velocity of the bug? m/s (c) One second after the...
March 27, 2010 by Kelsey

physics
A solid cylindrical disk has a radius of 0.16 m. It is mounted to an axle that is perpendicular to the circular end of the disk at its center. When a 50 N force is applied tangentially to the disk, perpendicular to the radius, the disk acquires an angular acceleration of 120 ...
June 1, 2007 by meredith

physics help 4 please!
A solid disk (mass = 1 kg, R=0.5 m) is rolling across a table with a translational speed of 9 m/s. a.) What must the angular speed of the disk be? ? rad/s b.) What is the rotational KE of the disk? ? J c.) What is the total KE of the disk? ? J d.) The disk then rolls up a hill...
October 18, 2008 by kelsey

machines
how do disc grinders work? My disk grinder has a series AC motor attached to a rubber disk upon which the grinding sheet is attached. The grinding sheet I use is carbide glued to paper. The carbide coated sheet rotates against the metal, usually a weld I am smoothing, and the ...
September 3, 2005 by juli

physics
The figure shows an arrangement in which four disks are suspended by cords. The longer, top cord loops over a frictionless pulley and pulls with a force of magnitude 82.6 N on the wall to which it is attached. The tensions in the shorter cords are T1 = 61.4 N, T2 = 47.2 N, and...
October 3, 2013 by kristy

Physic II
A flat disk 1.0 m in diameter is oriented so that the plane of the disk makes an angle of π/6 radians with a uniform electric field. If the field strength is 491.0 N/C, find the electric flux through the surface. Please show step by step
February 2, 2014 by John

calc
a pie dish has base diameter 8 inches and top diameter 10 inches and height 2 inches. what is the volume of the disk? do I do it so cross sections are squares? help!! Thanks!
April 3, 2008 by laura

Physics
Suppose that a disk rotates through two revolutions in 5.5 seconds. (a) What is its displacement in radians in this time? (b) What is its average rotational velocity in rad/s?
July 7, 2014 by Anonymous

physics
A CD has a diameter of 12.0 cm and a mass of 15.8 g. The motor in a CD player causes the disk, initially at rest, to spin. When in operation, the CD spins in such a way that the laser scans the tracks at a constant tangential velocity of 1.20 m/s. The first track of the CD is ...
January 18, 2011 by trace

physics
a disk of mass M and radius R is attached to a spring of constant k .the disk rolls back and forth without slipping. the angular frequency of the motion of the disk is
May 13, 2014 by kashyap

physics helpppp
Figure 10-35a shows a disk that can rotate about an axis at a radial distance h from the center of the disk. Figure 10-35b gives the rotational inertia I of the disk about the axis as a function of that distance h, from the center out to the edge of the disk. The scale on the ...
April 18, 2010 by andy

Physics
A flywheel is a solid disk that rotates about an axis that is perpendicular to the disk at its center. Rotating flywheels provide a means for storing energy in the form of rotational kinetic energy and are being considered as a possible alternative to batteries in electric ...
November 3, 2012 by StressedStudent

physics
A uniformly charged disk of radius 35.0 cm carries a charge density of 6.70 multiplied by 10-3 C/m2. Calculate the electric field on the axis of the disk at the following distances from the center of the disk. (a) 5.00 cm
January 27, 2013 by Anonymous

Physics
The figure shows three rotating, uniform disks that are coupled by belts. One belt runs around the rims of disks A and C. Another belt runs around a central hub on disk A and the rim of disk B. The belts move smoothly without slippage on the rims and hub. Disk A has radius R; ...
April 15, 2014 by Melinda

Physics please help?????
The figure shows three rotating, uniform disks that are coupled by belts. One belt runs around the rims of disks A and C. Another belt runs around a central hub on disk A and the rim of disk B. The belts move smoothly without slippage on the rims and hub. Disk A has radius R; ...
April 16, 2014 by Melinda

Physics
A charged disk of radius R that carries a surface charge density σ produces an electric field at a point a perpendicular distance z from the center of the disk, given by: Edisk = (sigma/2e0) x(1-(z/(square root(z^2 + R^2)) Consider a disk of radius 10 cm and positive ...
February 13, 2010 by Susie

Physics
A 400 kg solid metal disk (with uniform density) has several forces applied to it, as shown. If the rotation axis is through the center of the disk, then what is the angular acceleration of the disk?
April 17, 2012 by Anonymous

Physics
a) What is the tangential acceleration of a bug on the rim of a 6in. diameter disk if the disk moves from rest to an angular speed of 79 rev/min in 5 seconds? b) One second after the bug starts from rest, what is its tangential acceleration? What is its centripetal acceleration?
April 15, 2010 by Elizabeth

Physics
A flat uniform circular disk (radius = 2.10 m, mass = 1.00 102 kg) is initially stationary. The disk is free to rotate in the horizontal plane about a frictionless axis perpendicular to the center of the disk. A 40.0-kg person, standing 1.00 m from the axis, begins to run on ...
November 4, 2010 by Kevin

physics
A uniform disk with a mass of 27.3 kg and a radius of 0.309 m is free to rotate about a frictionless axle. Forces of 90.0 N and 125 N are applied to the disk, as the drawing indicates. (b) What is the angular acceleration of the disk?
November 3, 2011 by Sami

physics
A shuffleboard disk is accelerated to a speed of 5.6 m/s and released. If the coefficient of kinetic friction between the disk and the concrete court is 0.29, how far does the disk go before it comes to a stop? The courts are 15.7 m long.
September 26, 2012 by Karl

physics
A 1.6 kg disk with radius 0.63 m is rotating freely at 55 rad/s around an axis perpendicular to its center. A second disk that is not rotating is dropped onto the first disk so that their centers align, and they stick together. The mass of the second disk is 0.45 kg and its ...
June 9, 2010 by MD

physic
Hi!could anyone help me please, I don't get it. Thank you so much for your help. Question:(a) What is the tangential acceleration of a bug on the rim of a 9.0 in. diameter disk if the disk moves from rest to an angular speed of 79 rev/min in 4.0 s? ___m/s2 (b) When the disk is...
November 13, 2009 by Chan

physics
A children's merry-go-round in a park consists of a uniform 200kg disk rotating about a vertical axis. the radius of the disk is 6 m and a 100kg man is standing on the outer edge when the disk is rotating at a speed of 0.20rev/s. how fast will the disk be rotating if the man ...
November 21, 2009 by jeff

PHYSICS HELP
A disk has a moment of inertia of 3.0x10^-4 and rotates with an angular speed of 3.5 rad/sec. WHat net torque must be applied to bring it to rest in 3.0s? can some one help me out with this im lost!!!
November 13, 2007 by PHYSICS HELP

Physics
1) A circular disk 0.20m in diameter starts from rest and accelerates with constant angular acceleration to an angular acceleration to an angular velocity of 210 rad/s in 10.00s. Find the angular acceleration and the angle which the disk has turned in degrees. 2) A car with ...
April 9, 2013 by Anonymous

physics
a small bead can slide without friction on a circular hoop that is in a vertical plane and has a radius of 0.100 m. The hoop rotates at a constant rate of 3.00 rev/s about a vertical diameter. Find the angle beta at which the bead is in vertical equilibrium. what would happen ...
October 24, 2011 by bob

Physics
The moment of inertia of an object depends on the shape of the object, location and orientation of the axis of rotation. For a solid disk, when the disk is rotating about an axis that is perpendicular to the disk and passing through the center of the disk, the moment of ...
October 29, 2009 by Ellie

physics.
A flywheel is a solid disk that rotates about an axis that is perpendicular to the disk at its center. Rotating flywheels provide a means for storing energy in the form of rotational kinetic energy and are being considered as a possible alternative to batteries in electric ...
January 5, 2008 by Disy

fizik
Two shuffleboard disks of equal mass, one orange and the other yellow are involved in a perfectly elastic glancing collision. The yellow disk is initially at rest and is struck by the orange disk moving initially to the right at 7.00 ms"1. After the collision, the orange disk ...
April 11, 2011 by alya

physics
A disk is rotating on a horizontal axis, going from bottom to top. Answer the following questions if you pull down at A and push up at B along the axis of the disk. What is the direction of the torque acting on the disk?
November 21, 2011 by MANNA

math
find the circumfrence of a compact disk having a diameter of 4 and 3 4ourths in.
March 4, 2012 by efDVV

To DAMON.. (RE: Phys question u solved yesterday)
YOU DID The tension in the string is the force exerted down by the falling disk and up by whatever is holding the disk. They are equal and opposite. If the disk is a yo-yo, that force is exerted by your finger on the string to give the tension. Force up on disk = T Force down ...
December 16, 2008 by Stacu

physics
a physical pendulum consists of a uniform solid disk (of radius R = 42.0 cm) supported in a vertical plane by a pivot located a distance d = 13.0 cm from the center of the disk. The disk is displaced by a small angle and released. What is the period of the resulting simple ...
January 9, 2011 by kylie

Physics
A large disk of mass M and radius R is spinning like a CD of merry-go-round - that is, about an axis perpendicular to the plane of the disk. It is rotating at an angular velocity ? (initial). At some instant, a sphere of mass M/4 , which is initially not rotating, is dropped ...
April 16, 2007 by Roxy

hardware
Assuming a disk should never get more than 85% full (except for a recovery disk, if there is one), and assuming you were generating 200 MB of new data per week, at what point would you need to add another hard disk to this PC?
September 30, 2010 by malieha

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