Thursday

September 3, 2015
Number of results: 28,085

**Science**

A 12 g rifle bullet traveling 220 m/s buries itself in a 3.3 kg pendulum hanging on a 2.6 m long string, which makes the pendulum swing upward in an arc. Determine the horizontal component of the pendulum's maximum displacement.
*October 20, 2011 by kago*

**physics/science**

If a pendulum is not pushed, why does it not go as big when it swings back. Where does the lost PE go? ans. Since there is no force applied to the pendulum there is not enough Kinetic energy (energy of motion) to transform into potential energy to make it swing back. The ...
*February 9, 2014 by CC*

**science/physics**

If a pendulum is not pushed, why does it not go as big when it swings back. Where does the lost PE go? ans. Since there is no force applied to the pendulum there is not enough Kinetic energy (energy of motion) to transform into potential energy to make it swing back. The ...
*February 9, 2014 by CC*

**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 ...
*April 23, 2011 by HELP!!!!*

**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 ...
*April 24, 2011 by Hard to solve ..please 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?
*November 16, 2011 by Arielle Guidry*

**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?
*November 21, 2011 by Joy*

**Physics**

A large pendulum with a 200-lb gold-plated bob 12 inches in diameter is on display in the lobby of the United Nations building. Assume that the pendulum has a length of 78.4 ft. It is used to show the rotation of the Earth - for this reason it is referred to as a Foucault ...
*April 26, 2015 by Madison*

**science**

which would have a greater maximum kinetic energy, a long pendulum or short pendulum?
*January 8, 2013 by Anonymous*

**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.
*April 26, 2013 by lonia*

**physics**

A science museum has asked you to design a simple pendulum that will make 25.0 complete swings in 85.0 {\rm s}. How long should the pendulum be? in meters
*February 29, 2012 by Joe*

**science**

What is a pendulum? Explain how a pendulum works.
*September 18, 2013 by nicole 5th grade*

**physics**

A 0.380 kg pendulum bob passes through the lowest part of its path at a speed of 2.03 m/s. What is the tension in the pendulum cable at this point if the pendulum is 83.1 cm long? When the pendulum reaches its highest point, what angle does the cable make with the vertical? ...
*March 8, 2014 by Tully*

**PHYSICS**

A 0.380 kg pendulum bob passes through the lowest part of its path at a speed of 2.03 m/s. What is the tension in the pendulum cable at this point if the pendulum is 83.1 cm long? When the pendulum reaches its highest point, what angle does the cable make with the vertical? ...
*March 16, 2014 by JOE*

**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 ...
*April 30, 2011 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 ...
*April 30, 2011 by ashley --*

**physics**

A pendulum is constructed from a thin, rigid, and uniform rod with a small sphere attached to the end opposite the pivot. This arrangement is a good approximation to a simple pendulum (period = 5.97 s), because the mass of the sphere (lead) is much greater than the mass of the...
*November 17, 2010 by Dawb*

**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?
*April 10, 2011 by Gabi*

**physics**

A pendulum has a length of 1m. What is the period of this pendulum? What is the frequency of this pendulum? You measure the period of a pendulum and get 25s. What is the length of the pendulum?
*November 8, 2010 by devin*

**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 ...
*May 1, 2011 by ashley --- HELP PLEASEE!!!*

**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
*May 7, 2011 by Anonymous*

**science**

if you have a 343 J of kinetic energy at the lowest point of a pendulum's swing and at the highest point has a height of 5 m what is the pendulum's mass
*February 11, 2011 by Lex*

**physics**

The inverted pendulum shown consists of a uniform rod of length L and mass M hinged at its base. A spring is attached a distance h from the pendulum’s pivot and has a spring constant k. At equilibrium the pendulum is perfectly vertical. For small amplitude oscillations from ...
*May 1, 2013 by aisha*

**Science**

A simple pendulum is kept in train. If the train starts to accelerate, the time period of pendulum ?
*July 2, 2014 by Saurabh Singh*

**science- physic please help**

Well I did a Pendulum lab. The length of my pendulum on a string was 95 centimeters and it took 19.15 seconds to complete the 10 cycles. Please help me to find the frequency.
*May 4, 2013 by Tristan*

**physiscs**

a pendulum of the length L is suspended from the ceiling of an elevator. When the elevator is at rest , the period of the pendulum is T. In instant when the pendulum reaches its highest position the elevator starts the free fall. What is the period of the pendulum if the ...
*September 21, 2010 by Ray*

**Math - Linear Equations **

"the period of a pendulum, T (in seconds) varies directly with the square root of the length of the pendulum, L (in centimeters)". Given that a pendulum of length 9cm has a period of 0.63 seconds, find: a) The period of a pendulum of length 25cm b) The length of a pendulum ...
*May 24, 2014 by Kiirsty*

**Physics**

A 0.31 kg pendulum bob passes through the lowest part of its path at a speed of 2.02 m/s. The acceleration of gravity is 9.8 m/s2 . What is the tension in the pendulum cable at this point if the pendulum is 72 cm long? Answer in units of N
*March 21, 2012 by Hunter*

**Physics**

You are at a furniture store and notice that a Grandfather clock has its time regulated by a physical pendulum that consists of a rod with a movable weight on it. When the weight is moved downward, the pendulum slows down; when it is moved upward, the pendulum swings faster. ...
*January 3, 2012 by Lexi*

**Physics**

A 20 g rifle bullet traveling 225 m/s buries itself in a 3.6 kg pendulum hanging on a 2.8 m long string, which makes the pendulum swing upward in an arc. Determine the vertical and horizontal components of the pendulum's displacement.
*November 19, 2009 by Anonymous*

**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.
*October 20, 2010 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.
*April 13, 2011 by Cara*

**math**

The formula T=2*pi*sqrt[L/32] 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? ...
*April 11, 2011 by Gabi*

**Physics**

A 0.028 kg rifle bullet traveling 210 m/s buries itself in a 3.1 kg pendulum hanging on a 2.5 m long string, which makes the pendulum swing upward in an arc. 1. Determine the vertical and horizontal components of the pendulum's displacement.
*November 12, 2010 by Nick*

**physics**

a simple pendulum has a period of 4.2sec. when the pendulum is shortened by 1 m the period is 3.7s. what is the acceleration of free fall g and the original length of the pendulum?
*April 22, 2010 by la roux*

**physics**

A ballistic pendulum consists of a rectangular wooden block of mass 1.5 kg suspended from a ceiling. A bullet mass 0.025 kg undergoes a completely inelastic collision with the ballistic pendulum. Due to the collision the pendulum rises to a height of 45 cm. Calculate the speed...
*January 14, 2012 by joane*

**Physical Science**

A pendulum has 343 J of kinetic energy at the lowest point in its swing. At the highest point in its swing, it has a height of 5 m. What is the pendulum's mass?
*October 25, 2010 by Allen*

**science**

what are some experimental uncertainties for the period of a pendulum lab. in this lab we tested if the length of the string (cm) affects the period (sec) of the pendulum
*February 10, 2015 by matty*

**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.
*January 26, 2014 by Ricki*

**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 ...
*February 5, 2010 by Sara*

**physics**

A 0.480 kg pendulum bob passes through the lowest part of its path at a speed of 3.10 m/s. (b) When the pendulum reaches its highest point, what angle does the cable make with the vertical? The cable of the pendulum is 80 cm or .8m.
*December 7, 2010 by kaitlyn*

**physics**

A 0.480 kg pendulum bob passes through the lowest part of its path at a speed of 3.10 m/s. (b) When the pendulum reaches its highest point, what angle does the cable make with the vertical? The cable of the pendulum is 80 cm or .8m.
*December 7, 2010 by kaitlyn*

**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.
*February 28, 2013 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.
*February 28, 2013 by barotseland network *

**HS physics**

A 20g rifle bullet traveling 200m/s buries itself in a 3.3kg pendulum hanging on a 3.0m long string, which makes the pendulum swing upward in an arc. Determine the vertical and horizontal components of the pendulum's maximum displacement.
*October 19, 2009 by Halley*

**mambane**

A 10.0g bullet is fired with a speed of 500m/s into a pendulum block of mass 5.00kg, suspended from a cord 0.600m long. Calculate: (a)the vertical height through which the pendulum rises. (b) the initial kinetic energy of the bullet. (c) the kinetic energy of the bullet and ...
*September 22, 2014 by Xolani Rudolph Ngovene*

**science**

why does the period of the pendulum decrease if the length of the pendulum decrease?
*January 8, 2013 by maya*

**science**

A simple pendulum of length 1 metre has a bob of mass 100 grams.It is displaced through an angle 60 degree and then released.Calculate the speed of the bob when the pendulum passes through the mean position.
*February 17, 2013 by Surajit Sanyal*

**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 ...
*February 4, 2010 by Sara*

**trig**

A pendulum is 18 feet long. Its central angle is 44º. The pendulum makes one back and forth swing every 12 seconds. Each minute, the pendulum swings _____ feet. (Answer to the nearest foot.)
*June 14, 2012 by ahnas*

**math**

The period of a pendulum can be found by using the formula,where L is length of the pendulum in feet and P is the period in seconds.Find the period of a 15-foot pendulum. Round your answer to the nearest hundreth of a second.
*February 27, 2013 by karen*

**Physics**

A 250-gram pendulum bob is initially constrained at a 53 degree angle by two strings. When the horizontal string is cut the pendulum begins to swing. As the pendulum bob passes through its equilibrium position, what will be its velocity?
*November 29, 2010 by Jenny*

**Physics**

A 250-gram pendulum bob is initially constrained at a 53 degree angle by two strings. When the horizontal string is cut the pendulum begins to swing. As the pendulum bob passes through its equilibrium position, what will be its velocity?
*November 29, 2010 by Jenny*

**physics**

A girl on a merry-go-round platform holds a pendulum in her hand. The pendulum is 3.7 m from the rotation axis of the platform. The rotational speed of the platform is 0.025 rev/s. It is found that the pendulum hangs at an angle è to the vertical. Find è.
*March 28, 2013 by Michael*

**Physics**

A 17 g rifle bullet traveling 220 m/s buries itself in a 3.9 kg pendulum hanging on a 3.0 m long string, which makes the pendulum swing upward in an arc. Determine the vertical and horizontal components of the pendulum's displacement. Horizantal ____ J Vertical _____ J
*June 6, 2011 by anon*

**Science-Physics**

A pendulum with 1kg weight is set in motion from a position .04 m above the lowest point on the path of the weight. What is the kinetic energy of the pendulum at the lowest point?
*March 4, 2012 by Ryley*

**physics**

A 0.33- kg pendulum bob is attached to a string 1.2 m long and hangs vertically as shown in Figure 1. What is the change in the pendulum bob’s gravitational potential energy as it swings from the lowest point of the pendulum to a point that is 35 degree to the vertical?
*September 6, 2012 by farah*

**physics**

Suppose a simple pendulum is used to measure the acceleration due to gravity at various points on the Earth. If g varies by 0.151 % over the various locations where it is sampled, what is the corresponding variation in the period of the pendulum? Assume that the length of the ...
*February 17, 2012 by janny*

**Physics**

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 0.9925 m at Tokyo and 0.9948 m at Cambridge, England. What is the ratio of the free-fall ...
*October 30, 2014 by Zandy*

**Pre-Calculus **

The Period T, in seconds, of a pendulum depends on the distance, L, in meters, between the pivot and the pendulum's centre of mass. If the initial swing angle is relatively small, the period is given by the radical function T=2pi(sqrtL/g) where g represents acceleration due to...
*September 20, 2013 by Tyson*

**Physics - Faucault Pendulum**

A Foucault pendulum can be used to demonstrate that earth is rotating. Explain how this is possible. What differences would you notice if you used the pendulum at the North Pole, at Earth's equator, and at altitudes between two points?
*October 20, 2010 by Anonymous*

**physics**

A simple pendulum consists of a ball connected to one end of a thin brass wire. The period of the pendulum is 2.0000 s. The temperature rises by 149° C, and the length of the wire increases. Determine the period of the heated pendulum
*December 11, 2012 by Anonymous*

**Physics**

A simple pendulum consists of a ball connected to one end of a thin brass wire. The period of the pendulum is 1.45 s. The temperature rises by 142 C°, and the length of the wire increases. Determine the change in the period of the heated pendulum.
*July 30, 2013 by Jeanne*

**physics**

A simple pendulum consists of a ball connected to one end of a thin brass wire. The period of the pendulum is 2.15 s. The temperature rises by 133 C°, and the length of the wire increases. Determine the change in the period of the heated pendulum.
*July 30, 2013 by hurtle*

**Physics**

(a) What is the energy of a pendulum (L = 0.9 m, m = 0.4 kg) oscillating with an amplitude of 4.3 cm? (b) The pendulum's energy loss (due to damping) is replaced in a clock by allowing a 2.3-kg mass to drop 1.0 m in 1 week. What percentage of the pendulum's energy is lost ...
*June 25, 2012 by Ally*

**Math**

Movement of Pendulum A pendulum swings through an angle of 20 degree each second. if the pendulum is 40 inches long, how far dose its trip move each second ? arcdistance=radius*angleinradians you are given the radius. arcinradians= 20deg*PI/180
*August 30, 2006 by Farzan*

**trigo**

A pendulum of length 10 cm has swung so that theta is the radian measure of the angle formed by the pendulum and a vertical line .Show that the number of centimeters in the vertical height of the end of the pendulum above its lowest position is 20 sin squared 1/2 theta...
*September 28, 2014 by rai zan*

**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 Write this equation in function notation. (1 mark) State...
*March 12, 2012 by james*

**Physics plz help**

(a) What is the energy of a pendulum (L = 0.9 m, m = 0.4 kg) oscillating with an amplitude of 4.3 cm? (b) The pendulum's energy loss (due to damping) is replaced in a clock by allowing a 2.3-kg mass to drop 1.0 m in 1 week. What percentage of the pendulum's energy is lost ...
*June 25, 2012 by Ally*

**physics**

You have a 0.35 long pendulum attached to the roof inside your car. Your car is travelling at a speed of 1.0 m/s when it hits a concrete wall and stops immediately. If the pendulum is free to swing, to what maximum angle to the vertical does the pendulum swing upon impact?
*April 11, 2011 by Suhindar*

**Physics**

The length of a simple pendulum is 0.72 m, the pendulum bob has a mass of 305 grams, and it is released at an angle of 10° to the vertical. a) With what frequency does it vibrate? Assume SHM. (b) What is the pendulum bob's speed when it passes through the lowest point of the ...
*April 17, 2010 by Luricela*

**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 ...
*March 13, 2013 by Jonathan*

**physics**

In a ballistic pendulum experiment, projectile 1 results in a maximum height h of the pendulum equal to 2.4 cm. A second projectile causes the pendulum to swing twice as high, h_2 = 4.8 cm. The second projectile was how many times faster than the first?
*March 14, 2010 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 State the domain and range of this function. (1 mark) ...
*March 13, 2012 by james*

**precal**

a pendulum swings back and forth from a string. when it is lying motionless it is y = 6 ft. from a nearby wall. when the pendulum is furthest from the wall, it is 9 ft. it takes 20 seconds to complete one cycle. suppose you start timing the pendulum when it is furthest from ...
*September 29, 2014 by Anonymous*

**physics**

A frictionless pendulum of length 3 m swings with an amplitude of 10◦. At its maximum displacement, the potential energy of the pendulum is 10 J. What is the kinetic energy of the pendulum when its potential energy is 5 J? 1. K = 10 J 2. K = 3.3 J 3. K = 6.7 J 4. K = 15 ...
*January 5, 2010 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 ...
*April 15, 2007 by john*

**Physics**

A simple pendulum of the length 0.350 m starts from rest at a max displacement of 10 degrees. from equilibrium position. a) At what time will the pendulum be located at an angle of displacement of 8 degrees? b) When will the pendulum return to its starting position?
*January 21, 2013 by Derrick M.*

**Science**

It says: What variable(s) affect the swing rate of a pendulum? What variable(s) do not? Variables which affect the swing rate of a pendulum are wind, weight, height, gravity, and strength of string. I don't know the second part. maybe time?, distance? size? shape?
*February 3, 2010 by Sara*

**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
*March 12, 2012 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
*March 13, 2012 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
*March 13, 2012 by David*

**physics**

A simple pendulum consists of a ball of mass 5.39 kg hanging from a uniform string of mass 0.0789 g and length L. The period of oscilla- tion for the pendulum is 2.51 s. Determine the speed of a transverse wave in the string when the pendulum is station- ary and hangs ...
*June 20, 2011 by ryan*

**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.
*December 9, 2010 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.
*March 1, 2011 by RD*

**Physics 40**

A pendulum bob of mass M1 oscillates with a period of 1.0 s. If the length of the pendulum remains the same, but the pendulum bob is replaced with another one of mass M2 = 2*M1, what is the new period? I need help.
*December 7, 2010 by Jennifer*

**physics help**

A pendulum of mass m= 0.8 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 ...
*January 10, 2014 by Anonymous*

**physics help**

A pendulum of mass m= 0.8 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 ...
*January 10, 2014 by Anonymous*

**PHYSICS(HELP)**

A pendulum of mass m= 0.8 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 ...
*January 11, 2014 by Anonymous*

**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 ...
*April 29, 2011 by Joan*

**physics**

A grandfather clock uses a physical pendulum to keep time. The pendulum consists of a uniform thin rod of mass M = 7.01 kg and length L = 0.15 m that is pivoted freely about one end, with a solid sphere of the same mass, 7.01 kg, and a radius of L/2 centered about the free end...
*February 19, 2012 by janny*

**Physics**

a simple pendulum consists of a 1.5 kg mass connected to a cored without and mass or friction. Initially the pendulum is vertically positioned when a 2.0 kg mass collides with ie, causing the pendulum to displace vertically upward 1.25 m. After the collision, the 2.0 kg mass ...
*April 22, 2013 by Natalia*

**physics**

A ball of mass 0.075 kg is fired horizontally into a ballistic pendulum. The pendulum mass is 0.350 kg. The ball is caught in the pendulum, and the centerof mass of the system rises a vertical distance of 0.145 m in the earth's gravitational field. What was the original speed ...
*March 28, 2010 by april*

**science**

Pendulum A is 20 cm long and has a 5 gram mass on it. Pendulum B is 30 cm long and has a 10 gram mass on it. Which one has a faster period?
*November 15, 2010 by jessie*

**Physics Classical Mechanics Help ASAP**

A pendulum of mass m= 0.8 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 ...
*January 10, 2014 by Anonymous*

**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.
*September 9, 2012 by Shawn*

**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 ...
*May 20, 2011 by sisca*

**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 ...
*January 10, 2014 by JuanPro*

**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 ...
*January 12, 2014 by Anonimus*

**physics**

A pendulum and a mass spring system are both undergoing simple harmonic motion on Earth (use g = 10 N/kg). It is observed that every time the pendulum goes back and forth, the spring has gone up and down 14 times. If the pendulum has a length of 5 meters and the mass is 100 g...
*December 31, 2012 by sunny*