Thursday

April 17, 2014

April 17, 2014

Number of results: 73,089

**physics- mechanics**

A light, rigid rod with two masses attached to its ends, one of mass 3M and one of mass M, is pivoted about a horizontal axis. The mass 3M is length L from the pivot point and hte mass M is length 2L from the pivot point. When released from a horizontal orientation, the rod ...
*Monday, February 18, 2013 at 9:25pm by Anonymous*

**physics**

A pendulum consists of a uniform disk with radius r = 10 cm and mass 480 g attached to a uniform rod with length L = 500 mm and mass 175 g. (a) Calculate the rotational inertia of the pendulum about the pivot. (b) What is the distance between the pivot and the center of mass ...
*Sunday, April 15, 2007 at 9:32pm by john*

**Classical mechanics**

A pendulum of mass m= 0.9 kg and length l=1 m is hanging from the ceiling. The massless string of the pendulum is attached at point P. The bob of the pendulum is a uniform shell (very thin hollow sphere) of radius r=0.4 m, and the length l of the pendulum is measured from the ...
*Friday, January 10, 2014 at 10:14am by JuanPro*

**physic**

A "seconds pendulum" is one that moves through its equilibrium position once each second. (The period of the pendulum is precisely 2.000 s.) The length of a seconds pendulum is 0.9928 m at Tokyo and 0.9943 m at Cambridge, England. What is the ratio of the free-fall ...
*Friday, May 20, 2011 at 7:49pm by sisca*

**physics**

A particular person’s lower leg is 59 cm long and has a mass of 8.0 kg. If allowed to swing freely, with what time period would the leg swing? (Treat the leg as a simple pendulum with length equal to half the leg length and all the leg’s mass concentrated at this point.)
*Thursday, April 3, 2014 at 3:17pm by Anonymous*

**Phisics (Urgent)!!!!!!!!!!!!!!!!!!!!!!**

A pendulum of mass m= 0.9 kg and length l=1 m is hanging from the ceiling. The massless string of the pendulum is attached at point P. The bob of the pendulum is a uniform shell (very thin hollow sphere) of radius r=0.4 m, and the length l of the pendulum is measured from the ...
*Sunday, January 12, 2014 at 8:20am by Anonimus*

**physics Classical Mechanics**

A pendulum of mass m= 0.9 kg and length l=1 m is hanging from the ceiling. The massless string of the pendulum is attached at point P. The bob of the pendulum is a uniform shell (very thin hollow sphere) of radius r=0.4 m, and the length l of the pendulum is measured from the ...
*Sunday, January 12, 2014 at 9:26am by Anonimus*

**Physics**

An object is attached to a horizontal spring. It is initially displaced by distance Δx from the equilibrium position and then released from rest. At what point of its motion along the x-axis reaches the object its highest total energy a) At the equilibrium position b) At ...
*Wednesday, December 1, 2010 at 9:10pm by Michael*

**College Algebra**

The period (the time required for one complete swing) of a simple pendulum varies directly as the square root of its length. If a pendulum 12 feet long has a period of 4 seconds, find the period of a pendulum 3 feet long.
*Sunday, September 9, 2012 at 1:52am by Shawn*

**Modern Physics**

A point charge \left( {m = 1.0\,{\rm{g}}} \right) at the end of an insulating cord of length 55 {\rm cm} is observed to be in equilibrium in a uniform horizontal electric field of 15,000\,{\rm{N/C}}, when the pendulum's position, with the charge 12 {\rm cm} above the lowest (...
*Saturday, February 9, 2013 at 2:04pm by Masq*

**Physics**

A simple pendulum in a certain planet is found to vibrate 50 times in 100s. Find its (a) period, (b) its frequency. (c) When 1.5m of its length is cut, it vibrates 50 times in 50 s. Find the original length of the pendulum. thanks in advance
*Saturday, February 16, 2013 at 7:16am by david*

**physics (shm)**

Suppose that a simple pendulum consists of a small 55.0 g bob at the end of a cord of negligible mass. Suppose that the angle between the cord and the vertical is given by θ = (0.0800 rad) cos[(4.91 rad/s)t + ϕ]. (a) What is the pendulum's length? units in m (b) What...
*Friday, February 4, 2011 at 9:24pm by rock*

**phyiscs!**

Having landed on a newly discovered planet, an astronaut sets up a simple pendulum of length 1.51 m and finds that it makes 291 complete oscillations in 697 s. The amplitude of the oscillations is very small compared to the pendulum’s length. What is the gravitational ...
*Wednesday, November 16, 2011 at 11:50pm by amanda*

**Physics**

Having landed on a newly discovered planet, an astronaut sets up a simple pendulum of length 1.29 m and finds that it makes 407 complete oscillations in 698 s. The amplitude of the oscillations is very small compared to the pendulum’s length. What is the gravitational ...
*Monday, May 6, 2013 at 7:22pm by dallas*

**Phisics**

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 ...
*Saturday, June 25, 2011 at 2:08pm by Luis*

**Phisics**

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 ...
*Saturday, June 25, 2011 at 2:33pm by Luis*

**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 ...
*Saturday, June 25, 2011 at 8:00pm by Luis*

**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 45º below the horizontal and is given an initial downward speed of 1.50 m/s. find: At the bottom of the arc, determine the centripetal acceleration of the ...
*Saturday, June 25, 2011 at 8:58pm by Luis*

**Physics**

A ballistic pendulum consists of an arm of mass M and length L = 0.485 m. One end of the arm is pivoted so that the arm rotates freely in a vertical plane. Initially, the arm is motionless and hangs vertically from the pivot point. A projectile of the same mass M hits the ...
*Thursday, November 8, 2012 at 4:37pm by Joe Frank*

**MONGU COLLEGE **

In a single swing pendulum moves through an angle of 1.92 Radian. (a). Determine the length of arc treated by the pendulum Bob. (b). The area of the sector if the length of the pendulum is 13.2cm.
*Thursday, February 28, 2013 at 5:00pm by barotseland network *

**MONGU COLLEGE **

In a single swing pendulum moves through an angle of 1.92 Radian. (a). Determine the length of arc treated by the pendulum Bob. (b). The area of the sector if the length of the pendulum is 13.2cm.
*Thursday, February 28, 2013 at 5:00pm by barotseland network *

**physics**

A simple pendulum has a mass m and carries a charge q. The pendulum is suspended between the vertical plates of a capacitor of separation distance d. If the string of the pendulum makes an angle θ with the vertical, what is the potential difference between the plates
*Monday, March 12, 2012 at 3:54pm by David*

**physics**

A simple pendulum has a mass m and carries a charge q. The pendulum is suspended between the vertical plates of a capacitor of separation distance d. If the string of the pendulum makes an angle θ with the vertical, what is the potential difference between the plates
*Tuesday, March 13, 2012 at 1:24pm by David*

**physics**

A simple pendulum has a mass m and carries a charge q. The pendulum is suspended between the vertical plates of a capacitor of separation distance d. If the string of the pendulum makes an angle θ with the vertical, what is the potential difference between the plates
*Tuesday, March 13, 2012 at 1:24pm by David*

**Physics Urgent please help**

Consider an ideal spring that has an unstretched length l_0 = 3.5 m. Assume the spring has a constant k = 36 N/m. Suppose the spring is attached to a mass m = 8 kg that lies on a horizontal frictionless surface. The spring-mass system is compressed a distance of x_0 = 1.9 m ...
*Saturday, October 12, 2013 at 4:11am by akha*

**math**

The length of time that it takes for a pendulum to make one complete swing depends on the length of the pendulum. The time in seconds, T, is related to the length in meters, L, through the equation: T=2π√((L)/(9.8)) [it is all under square root] Q1: write in ...
*Wednesday, March 13, 2013 at 7:04pm by Jonathan*

**f.u.t minna**

the period of a simple pendulum(T) depends on a mass of the bulb(M) length of the tred(L) and acceleration due to gravity(g) use the method to find the expression for the of oscillation(T).
*Tuesday, November 30, 2010 at 12:22pm by akeem*

**physics**

finding the acceleration of a simple pendulum g= 4pi^2 x length/T^2 T^2= 2.28 length= 70cm
*Thursday, January 8, 2009 at 11:39pm by Kayleigh*

**Physic**

The simple pendulum in a tall clock is 0.30 m long. What is the period of this pendulum? T = s What is the frequency of this pendulum? f = Hz
*Saturday, May 7, 2011 at 12:52am by Anonymous*

**physics**

A 96.3 g mass is attached to a horizontal spring with a spring constant of 1.04 N/m and released from rest with an amplitude of 27.1 cm. What is the velocity of the mass when it is halfway to the equilibrium position if the surface is frictionless?
*Wednesday, June 6, 2012 at 8:02pm by Anonymous*

**physics**

a small mass is suspended from along thread so as to form a simple pendulum.the period T of the oxillation depend on the mass M,the length L of the thread and the acceleration G of free fall at the place concerned so that T =km^x,L^y,G^z where K = 2pie 1. Find the values of x,...
*Saturday, October 5, 2013 at 4:54pm by praise*

**algebra**

The period t ( in seconds) of a simple pendulum as a function of its length l(in feet) is given by t(l) = xpie sqrt 1/32.2 a. Express the length l as a function of the period t b. How long is a pendulum whose period is 3 seconds. Is the answer 2 sec for a and 2.25 feet for b?????
*Tuesday, December 13, 2011 at 4:41pm by anon*

**Physics**

"The exact relationship for the period T of a simple pendulum is T=2*pi*sqrt_of(l/g) where l is the length of the pendulum, and g is the acceleration of gravity." I have to rearrange the formula to where you solve for l instead of t. I started to try to do it, but I don't ...
*Sunday, January 13, 2008 at 5:17pm by Emily*

**Physics**

A thin uniform rod has mass M = 0.5 kg and length L= 0.49 m. It has a pivot at one end and is at rest on a compressed spring as shown in (A). The rod is released from an angle θ1= 55.0o, and moves through its horizontal position at (B) and up to (C) where it stops with &#...
*Tuesday, February 11, 2014 at 4:21pm by Tomas*

**mathematics**

A spring with a mass of 4 kg has damping constant 28, and a force of 12 N is required to keep the spring stretched 0.5 m beyond its natural length. The spring is stretched 1 m beyond its natural length and then released with zero velocity. Find the position of the mass at any ...
*Tuesday, April 24, 2012 at 6:42am by Marwan*

**math**

A spring with a mass of 4 kg has damping constant 28, and a force of 12 N is required to keep the spring stretched 0.5 m beyond its natural length. The spring is stretched 1 m beyond its natural length and then released with zero velocity. Find the position of the mass at any ...
*Tuesday, April 24, 2012 at 6:59am by Marwan*

**physics**

A 95.5 g mass is attached to a horizontal spring with a spring constant of 11.2 N/m and released from rest with an amplitude of 35.8 cm. What is the velocity of the mass when it is halfway to the equilibrium position if the surface is frictionless? Answer in units of m/s.
*Saturday, November 20, 2010 at 5:45pm by raerae*

**physics**

A spiral staircase winds up to the top of a tower in an old castle. To measure the height of the tower, a rope is attached to the top of the tower and hung down the center of the staircase. However, nothing is available with which to measure the length of the rope. Therefore, ...
*Sunday, April 1, 2007 at 8:32am by Coreen*

**Physics**

A pendulum is composed of a mass m suspended from the ceiling by a massless string of length L. If the mass is pulled back so that it is raised an amount L/4 and then released, what is the tension on the string at the bottom of the swing? A.3 mg B.4 mg C.2 mg D.5/2 mg E.3/2 mg...
*Friday, May 4, 2012 at 6:20pm by Chris*

**physics **

Which of the following statements is true about a mass, which is attached to a spring and moves with simple harmonic motion on a frictionless horizontal surface? Choose one answer. a. The kinetic energy of the mass is maximum at the end positions. b. The kinetic energy of the ...
*Saturday, April 30, 2011 at 7:27pm by ashley --- HELP PLEASEE!!!*

**Math/Calculus**

A spring with a 4 kg mass has natural length 1 m and is maintained stretched to a length of 1.3 m by a force of 24.3 N. If the spring is compressed to a length of 0.8 m and then released with zero velocity, find the position of the mass at any time t. Here is my work so far: ...
*Wednesday, July 11, 2007 at 1:44am by COFFEE*

**physics**

suppose a simple pendulum was released from an angle of 58 degrees, with a length of 0.75m and mass of .15kg. what would be the speed of the bob at the bottom of the swing? To what height would the bob get to on the other side. What angle of release would give half the speed ...
*Sunday, November 6, 2011 at 9:54pm by bec*

**physics**

A block of mass M hangs from a rubber cord. The block is supported so that the cord is not stretched. The unstretched length of the cord is L0 and its mass is m, much less than M. The "spring constant" for the cord is k. The block is released and stops at the lowest point. (...
*Tuesday, December 1, 2009 at 9:29am by Stephen*

**Physics**

A block of mass M hangs from a rubber cord. The block is supported so that the cord is not stretched. The unstretched length of the cord is L_0 and its mass is m, much less than M. The "spring constant" for the cord is k. The block is released and stops at the lowest point. (...
*Wednesday, December 2, 2009 at 9:32pm by Keith*

**Physics**

A nonuniform 2.0-kg rod is 2.0 m long. The rod is mounted to rotate freely about a horizontal axis perpendicular to the rod that passes through one end of the rod. The moment of inertia of the rod about this axis is 4.0 kg m2. The center of mass of the rod is 1.2 m from the ...
*Sunday, October 28, 2012 at 7:35am by Anonymous*

**Physics**

Two physical pendulums (not simple pendulums) are made from meter sticks that are suspended from the ceiling at one end. The sticks are uniform and are identical in all respects, except that one is made of wood (mass = 0.17 kg) and the other of metal (mass = .85 kg). They are ...
*Wednesday, July 24, 2013 at 8:45pm by Brett*

**physics**

A Foucault pendulum is designed to demonstrate the effect of the Earth's rotation. A Foucault pendulum displayed in a museum is typically quite long, making the effect easier to see. Consider a Foucault pendulum of length 16 m with a 109-kg brass bob. It is set to swing with ...
*Saturday, April 23, 2011 at 4:13pm by HELP!!!!*

**Algebra II**

The number of oscillations made by a pendulum in a given time is inversely proportional to the length of the pendulum. A certain clock with a 20-in.-long pendulum is losing 11.00 min/day. Should the pendulum be lengthened or shortened, and by how much?
*Monday, November 21, 2011 at 12:35pm by Joy*

**Physics 203**

A block with mass of 5.0kg is suspended from an ideal spring having negligible mass and stretches the spring 0.20m to its equilibrium position. A) What is the force constant of the spring? B) The spring is then stretched 0.80m from its equilibrium position and then released ...
*Tuesday, April 9, 2013 at 5:16pm by ash*

**physics**

A 0.11 kg mass suspended on a spring is pulled to 6.9 cm below its equilibrium position and released. When the mass passes through the equilibrium position, it has a speed of 0.28 m/s. What is the speed of the mass when it is 4.1 cm from the equilibrium position?
*Friday, April 6, 2012 at 3:29pm by Aaron*

**Physics**

1. If a mass on a spring and a pendulum have the same period on the moon where the gravity is about 1/6 of its value on the Earth, which one will run faster on the Earth? a. The mass on the spring. b. The pendulum. c. They will both run the same. d. It depends on which one has...
*Monday, January 9, 2012 at 4:10pm by Ben*

**science**

On the moon, the period of a pendulum will be sqrt 6 = 2.45 times longer than a pendulum of the same length on Earth. That is because a pendulum's period is 2 pi sqrt (L/g) where L is the length and g is the local acceleration of gravity.
*Wednesday, April 2, 2008 at 10:10pm by drwls*

**Algebra II**

The number of oscillations made by a pendulum in a given time is inversely proportional to the length of the pendulum. A certain clock with a 20-in.-long pendulum is losing 11.00 min/day. Should the pendulum be lengthened or shortened, and by how much?
*Wednesday, November 16, 2011 at 12:24pm by Arielle Guidry*

**PHYSICS**

A pendulum was set up and measurements were made to enable the mechanical energy to be calculated at the start position S and the lowest point of the pendulums swing L. The mass of the pendulum bob was determined on an electronic scale and its diamter was measured using ...
*Saturday, January 30, 2010 at 4:00pm by Sarah*

**physics**

A pendulum consists of a mass m = 0.12 kg hanging from a flexible string of length L. The string is very thin, very light, and does not stretch. It makes small oscillations, with a period of 0.663 s. What is the oscillation frequency of the pendulum? What would the period of ...
*Friday, April 29, 2011 at 11:05pm by Joan*

**physics **

The period of a simple pendulum is measured to be 4.0 seconds in a frame of reference. Which of the following is correct when the period of the pendulum is measured by an observer moving with 0.4 times the speed of the light? Choose one answer. a. The time period of the ...
*Saturday, April 30, 2011 at 12:05am by ashley --*

**physics **

The period of a simple pendulum is measured to be 4.0 seconds in a frame of reference. Which of the following is correct when the period of the pendulum is measured by an observer moving with 0.4 times the speed of the light? Choose one answer. a. The time period of the ...
*Saturday, April 30, 2011 at 10:25am by ashley --*

**Physics**

Two physical pendulums (not simple pendulums) are made from meter sticks that are suspended from the ceiling at one end. The sticks are uniform and are identical in all respects, except that one is made of wood (mass = 0.17 kg) and the other of metal (mass = 0.85). They are ...
*Tuesday, November 8, 2011 at 11:08am by Anonymous*

**Physics**

Two physical pendulums (not simple pendulums) are made from meter sticks that are suspended from the ceiling at one end. The sticks are uniform and are identical in all respects, except that one is made of wood (mass = 0.17 kg) and the other of metal (mass = 0.85). They are ...
*Tuesday, November 8, 2011 at 4:00pm by Anonymous*

**physics**

when a mass attached to a spring is released from rest 3.0 cm from its equilibrium position, it oscillates with a frequency f. If this mass were instead released from rest 6.0 cm from its equilibrium position, it would oscillate with frequency.. A.2f B.sqrt 2f C.f D.f/2 I can ...
*Monday, November 16, 2009 at 6:07pm by collegekid*

**Physics**

A mass m1 on a horizontal shelf is attached by a thin string that passes over a frictionless pulley to a 2.5 kg mass (m2) that hangs over the side of the shelf 1.2 m above the ground. The system is released from rest at t = 0 and the 2.5 kg mass strikes the ground at t = 0.82 ...
*Sunday, February 26, 2012 at 8:30pm by J*

**physics**

As shown below, a bullet of mass m and speed v passes completely through a pendulum bob of mass M. The bullet emerges with a speed of v/2. The pendulum bob is suspended by a stiff rod of length and negligible mass. What is the minimum value of v such that the pendulum bob will...
*Sunday, March 22, 2009 at 11:57pm by jim*

**physics**

A mass of 0.755 kg is attached to a horizontal spring of constant 403 N/m as shown. The system is compressed a distance xa = 20.8 cm from its equilibrium position and released from rest. The coefficient of friction on the surface is μ = 0.354. The mass comes to rest again...
*Wednesday, February 23, 2011 at 7:07pm by Matt*

**math**

The period T (time in seconds for one completecycle) of a simple pendulum is related to the length L(in feet) of the pendulum by the formula8T^2=pi^2L. If achild is on a swing with a 10-foot chain, then how longdoes it take to complete one cycle of the swing?
*Wednesday, March 18, 2009 at 6:49pm by Debbie*

**Physics**

Placing a 215 g mass on a vertical spring causes a stretch of 5.1 cm. The mass is released at t=0 with y=0.15m (higher than the equilibrium hanging length) with a velocity of v=-1.3 m/s. What is the spring constant of the spring? What is the amplitude of the motion of the mass...
*Thursday, December 5, 2013 at 7:48pm by Shelby*

**Physics**

A simple pendulum is 9.00 m long. (a) What is the period of simple harmonic motion for this pendulum if it is hanging in an elevator accelerating upward at 2.00 m/s2? I keep getting 6.7, but it's wrong
*Monday, August 4, 2008 at 11:03pm by Elisa*

**Physics 20**

A 2.50-kg Pendulum is attatched to a string 11.4m stringis pulled aside until it is.386m above its lowest position and released. The pendulum is designed to emit sound waves at a frequency of 440 Hz; However, as it swings toward and away from an observer, the frequency appears...
*Monday, July 13, 2009 at 3:44am by Moe*

**physics**

A bullet of mass 8 g strikes a ballistic pendulum of mass 2.0 kg. The center of mass of the pendulum rises a vertical distance of 10 cm. Assuming that the bullet remains embedded in the pendulum, calculate the bullet's initial speed.
*Thursday, December 9, 2010 at 3:22pm by joey*

**Physics**

A bullet of mass 3.2 g strikes a ballistic pendulum of mass 3.6 kg. The center of mass of the pendulum rises a vertical distance of 13 cm. Assuming that the bullet remains embedded in the pendulum, calculate the bullet's initial speed.
*Tuesday, March 1, 2011 at 12:54pm by RD*

**phyics**

A simple pendulum is made from a 0.781-m-long string and a small ball attached to its free end. The ball is pulled to one side through a small angle and then released from rest. After the ball is released, how much time elapses before it attains its greatest speed?
*Tuesday, November 12, 2013 at 12:14pm by MATT*

**physics**

A pendulum has a length of 1.35m. What mass should be placed on a spring with a spring constant of 10.0N/m to have oscillations with the same period as the pendulum.
*Sunday, November 4, 2012 at 4:36pm by Joe*

**physics**

A simple pendulum is made from a bob of mass 0.04 kg suspended on alight string of length 1.4m. Keeping the string taut, the pendulum is pulled to one side until it has gained a height of 0.1m. calculate: a. The total energy of the oscillation (b) the amplitude of the ...
*Monday, January 16, 2012 at 6:53am by Nuwaya*

**physics for physical science**

a bullet of mass 0.015kg strikes ballistic pendulum of mass 2.0kg .the center of mass of the pendulum rises a vertical distance of 0.12m.assuming that the bullet remains embedded in the pendulum, calculate the bullet's initial speed.
*Friday, April 26, 2013 at 10:56am by lonia*

**Physics Help please**

The free-fall acceleration on Mars is 3.7 m/s2. (a) What length pendulum has a period of 4 s on the earth? cm What length pendulum would have a 4 s period on Mars? cm (b) A mass is suspended from a spring with force constant 10 N/m. Find the mass suspended from this spring ...
*Monday, December 6, 2010 at 10:31am by Anonymous*

**math**

The length of time that it takes for a pendulum to make one complete swing depends on the length of the pendulum. The time in seconds, T, is related to the length in metres, L, through the equation T=2π√ L/9.8
*Wednesday, February 15, 2012 at 11:57pm by james*

**physics**

You don't need the period of the pendulum (or the pendulum length) to do this problem. The vertical height H that the pendulum rises tells you the velocity the pendulum (mass M) and gum (mass m) acquire right after the collision. Call that velocity V. V = sqrt (2 g H)= 1.58 m/...
*Monday, April 12, 2010 at 11:55pm by drwls*

**Physics**

A pendulum bob with a mass of 0.4 kg is released from a position in which the bob is 20 cm above the low point in its swing. What’s the speed of the bob as it passes through the low point in its swing?
*Sunday, March 2, 2014 at 1:50pm by Jennifer*

**Physics **

Two pendulums are set up side by side. One pendulum P, consists of a 0.240 kg mass that is suspended on a string that is 65.0 cm long. The other pendulum, Q, has a 0.360 kg mass that is suspended on a string that is 39.0 cm long. The two masses are pulled aside slightly and ...
*Thursday, January 31, 2013 at 7:13pm by Steve*

**Physics (please help!!!!)**

A Foucault pendulum is designed to demonstrate the effect of the Earth's rotation. A Foucault pendulum displayed in a museum is typically quite long, making the effect easier to see. Consider a Foucault pendulum of length 16 m with a 109-kg brass bob. It is set to swing with ...
*Sunday, April 24, 2011 at 9:25pm by Hard to solve ..please help!!!!*

**physics **

The period of a simple pendulum is measured to be 4.0 seconds in a frame of reference. Which of the following is correct when the period of the pendulum is measured by an observer moving with half the speed of the light? Choose one answer. a. The time period of the pendulum ...
*Sunday, May 1, 2011 at 3:31pm by ashley --- HELP PLEASEE!!!*

**programming**

Application: Pendulum Clocks Pendulums used in clocks, such as grandfather clocks, keep fairly accurate time for the following reason: When the length of a pendulum is large compared with the maximum arc of its swing, the time to complete one swing is independent of both the ...
*Thursday, October 4, 2012 at 8:16am by fatih*

**physics # 5**

Pendulum period in seconds T ≈ 2π√(L/g) L is length of pendulum in meters g is gravitational acceleration = 9.8 m/s² Length for 1 second = 0.248 m (b)
*Tuesday, August 7, 2007 at 11:45pm by kirafreedom*

**math**

The formula T=2*pi*sqrt[L/g] gives the period of a pendulum of length l feet. The period P is the number of seconds it takes for the pendulum to swing back and forth once. Suppose we want a pendulum to complete three periods in 2 seconds. How long should the pendulum be?
*Sunday, April 10, 2011 at 4:30am by Gabi*

**Science-Pendulum**

The four parts in which I had to go through this investigation was: Part 1: Practice Part 2: Does mass affect the swing rate of a pendulum? Part 3:Does Arc length affect the swing rate of a pendulum? Part 4:Does Length affect the swing rate of a pendulum. It asks why was it ...
*Friday, February 5, 2010 at 7:26pm by Sara*

**math**

A uniform ladder of length 2a and mass m lies on a vertical plane with one end against a smooth vertical wall,the other end being supported on a horizontal floor. The ladder is released from rest when inclined at an angle Q to the horizontal. Find the inclination of the ladder...
*Monday, June 27, 2011 at 10:57am by nilufar*

**physics**

a 1 kg mass is attached to a spring hanging vertically and hangs at rest in the equilibrium position. the spring constant of the spring is 1 n/cm. the mass is pulled downward 2 cm and released. what is the speed of the mass when it is 1 cm above the point from which it was ...
*Wednesday, March 23, 2011 at 11:11pm by Jess*

**physics**

A mass of 0.7 kg is attached to the end of a massless spring of spring constant 0.35 N/m. It is released from rest from an extended position. After 0.8 s, the speed of the mass is measured to be 1.5 m/s. What is the amplitude of oscillation? What is the total energy (relative ...
*Wednesday, March 28, 2012 at 1:05pm by Katie*

**physics**

A new type of spring is found where the spring force F is given by F=-kx + bx^2 where k=400 N/ m and b=100 N/m^2 and x is the expansion (or compression) of the spring from its equilibrium position. The spring is attached to a point mass of 1 kg sitting on a horizontal ...
*Monday, April 4, 2011 at 3:48pm by Physics*

**Physics**

Hello, I posted this a bit ago, but am not sure the suggested solution was correct. Two physical pendulums (not simple pendulums) are made from meter sticks that are suspended from the ceiling at one end. The sticks are uniform and are identical in all respects, except that ...
*Monday, November 7, 2011 at 4:26pm by Anonymous*

**Science-Pendulum**

The four parts in which I had to go through this investigation was: Part 1: Practice Part 2: Does mass affect the swing rate of a pendulum? Part 3:Does Arc length affect the swing rate of a pendulum? Part 4:Does Length affect the swing rate of a pendulum. It asks why was it ...
*Thursday, February 4, 2010 at 8:58pm by Sara*

**physics**

A 25 rifle bullet traveling 280 buries itself in a 3.8 pendulum hanging on a 3.0 long string, which makes the pendulum swing upward in an arc. Determine the vertical and horizontal components of the pendulum's displacement.
*Wednesday, October 20, 2010 at 7:35pm by Keta*

**Physics**

A 24 rifle bullet traveling 230 buries itself in a 3.9 pendulum hanging on a 3.0 long string, which makes the pendulum swing upward in an arc. Determine the vertical and horizontal components of the pendulum's displacement.
*Wednesday, April 13, 2011 at 6:27pm by Cara*

**Physics**

A point charge (m = 1.0 g) at the end of an insulating string of length L = 51 cm (Fig. 16-66) is observed to be in equilibrium in a uniform horizontal electric field of E = 9200 N/C, when the pendulum's position is as shown in Fig. 16-66, with the charge d = 2.0 cm above the ...
*Friday, February 24, 2012 at 9:38am by Millie*

**Physics**

A 2.00-kg object is hanging on a 1.1m string. The object is pulled 20cm away from the equilibrium position and held there. a) What is the pulling force in the string when the object is kept still ? b) Now the object is released, what is the speed of the object when it goes ...
*Monday, March 24, 2014 at 6:17pm by Physics: Pendulum*

**Algebra 2**

Because of friction and air resistance, each swing of a pendulum is a little shorter than the previous one. The lengths of the swings form a geometric sequence. Suppose the first swing of the pendulum has an arc length of 100 cm and a return swing of 99 cm. a.)On which swing ...
*Monday, February 25, 2013 at 12:51pm by Mia*

**Algebra 2**

Because of friction and air resistance, each swing of a pendulum is a little shorter than the previous one. The lengths of the swings form a geometric sequence. Suppose the first swing of the pendulum has an arc length of 100 cm and a return swing of 99 cm. a.)On which swing ...
*Thursday, March 7, 2013 at 5:57pm by Amber*

**Physics**

Given a simple pendulum of length r and mass m, determine the oscillation period T if the perturbation angle θ is very small (i.e. θ < 10degrees). How can I derive an equation for period using just that info?
*Monday, November 17, 2008 at 9:44pm by Samantha*

**Physics**

Given a simple pendulum of length r and mass m, determine the oscillation period T if the perturbation angle θ is very small (i.e. θ < 10degrees). How can I derive an equation for period using just that info?
*Monday, November 17, 2008 at 10:35pm by Samantha*

**Physics**

The period of a simple pendulum with small amplitudes is given by: T=2πsqrt(L/g) So under those conditions, the period is independent of the mass and the initial amplitude, as long as the latter is small. So the only factor is the length, L.
*Monday, December 13, 2010 at 6:48pm by MathMate*

**Math**

The pendulum of a grandfather clock is 90cm long, when the pendulum swings from one side to the other it travels a horizontal distance of 9.2cm, determine the angle in which the pendulum swings.
*Sunday, January 26, 2014 at 7:01pm by Ricki*

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