Saturday

February 6, 2016
Number of results: 18,867

**Math**

A ball rebounds 7/8ths as high as it bounced on the previous bounce and is dropped from a height of 8 feet. How high does it bounce on the fourth bounce and how far has it traveled after the fourth bounce?
*February 28, 2011 by Kimberly*

**Maths**

A ball is dropped from a height of 80ft.The elasticity of this ball is such that it rebounds three-fourths of the distance it has fallen. How high does the ball rebound on the fifth bounce? Find a formula for the height the ball rebounds on the nth bounce?
*July 7, 2015 by Lynn*

**Maths**

A ball is dropped from a height of 80ft.The elasticity of this ball is such that it rebounds three-fourths of the distance it has fallen. How high does the ball rebound on the fifth bounce? Find a formula for the height the ball rebounds on the nth bounce?
*July 10, 2015 by Rainie*

**maths**

Veronica bounced a ball from the roof of the school which was 16m high. The first bounce reached up to 8m, the next bounce was half as high again. How high would the fifth bounce have been? Do the numbers and see what you get. There are only four more bounces to go. Hint: What...
*August 6, 2007 by JaredN*

**physics**

When baseball players throw the ball in from the outfield, they sometimes allow it to take one bounce before it reaches the infield on the theory that the ball arrives sooner that way. Suppose the angle at which a bounced ball leaves the ground is the same as the angle at ...
*September 19, 2012 by lib*

**5th grade math**

On each bounce a ball reaches 4/5 of the height of its previous bounce.How high will the ball bounce on its 3rd bounce? Also, how many bounces will it take the ball to bounce to a height that is less than 1/2 of the height of the first bounce?
*April 7, 2014 by Sue*

**alg**

suppose you drop a tennis ball from a height of 15 feet. After the ball hits the floor, it rebounds to 85% of its previous height. How high will the ball rebound after its third bounce. round to the nearest tenth.. my teacher told be the answers 9.2 but i dont know how she got it
*June 9, 2008 by jerson*

**alg2**

suppose you drop a tennis ball from a height of 15 feet. After the ball hits the floor, it rebounds to 85% of its previous height. How high will the ball rebound after its third bounce. round to the nearest tenth.. my teacher told be the answers 9.2 but i dont know how she got...
*June 9, 2008 by jerson*

**math**

A ball is dropped from a height of 5 ft. Assuming that on each bounce the ball rebounds to one-third of its previous height, find the total distance travelled by the ball.
*December 6, 2010 by Mike*

**math**

Sandy dropped a basketball from the top of her Mom'soffice building which is 72 meters tall. She discovered that the first bounce bounced 36m on the second bouce the ball bounced 18 meters. if this pattern continues, how high will the ball bounce on the sixth bounce? 72/(2^6...
*January 24, 2007 by Preston*

**maths**

Four children were bouncing balls. Jeff's ball bounced eight more times than Michael's. Michael's ball bounced half as many times as Olivia's. Olivia's bounced eight times. How many times did Jeff's ball bounce?
*September 17, 2015 by Anonymous*

**Math**

Fay's rubber ball bounces exactly half the height from which it is dropped. She drops the ball from the top of a building that is 64 meters tall. How high will the ball bounce on its eighth bounce. Could someone explain this? Thank you! Natalie 1/2 of 64= 32. 32 feet is how ...
*August 16, 2006 by Natalie*

**math**

If you drop a ball from 15 feet and every time it bounces it returns to 80% of its previous height, how high does it bounce after it n-th bounce?
*September 11, 2013 by hailey*

**Maths**

A bouncy ball bounces 16m on its first bounce and then 8m on the second bounce. Each time it bounces the height halves. How high will the ball bounce on the 10th bounce?
*January 29, 2013 by Jack*

**Math**

Im just a little confused on how to answer this question. A ball bounced 64% of the height from which it was dropped. The bounce was 72 cm high. What is the height from which the ball was dropped. I think there has to be an algebraic equation of some sort, but I'm not sure ...
*May 15, 2011 by Erika*

**Statistics**

A golf ball is dropped from 15 different heights (in inches) and the height of the bounce is recorded (in inches.) The regression analysis gives the model y-hat = -0.4 + 0.70 (drop height) where y-hat is the predicted bounce height of the golf ball. A golf ball dropped from 71...
*September 18, 2013 by Jeremy*

**algebra**

a ball falls from a height of 2.4m and bounces from the same spot, each bounces rise to 3/5 the height of the preceeding bounce. a. write the series of the movement from start to the eighth bounce. b.Find th etotal distance moved by the ball as indicated in (a) above c. Find ...
*April 16, 2012 by jodi*

**Calc2**

A) A ball is dropped from "M" meters above a flat surface. Each time the ball hits the surface after falling a distance, h, it rebounds a distance d, where 0<r<1. Find the formula that represents the total distance the ball travels up and down. B) Use the formula in part...
*April 16, 2015 by Jackee*

**Pre-Algerbra**

A basketball drops from a height of 76 in. On bounce 1, it rebounds to a height of 38 in. On bounce 2, it rebounds to a height of 19 in. How high does the basketball bounce on bounce 3? ---- A. 9 inches B. 19 inches C. 9.5 inches D. 4.75 inches
*October 17, 2012 by Layla*

**physics**

A superball is dropped from rest from a height of 2.0m. It bounces repeatedly from the floor, as superballs are prone to do. After each bounce the ball dissipates some energy, so eventually it comes to rest. The following pattern is observed: After the 1st bounce, the ball ...
*January 31, 2014 by Chey*

**physics**

A superball is dropped from rest from a height of 2.0m. It bounces repeatedly from the floor, as superballs are prone to do. After each bounce the ball dissipates some energy, so eventually it comes to rest. The following pattern is observed: After the 1st bounce, the ball ...
*January 31, 2014 by Cheylynne*

**Physics**

When baseball outfielders throw the ball, they usually allow it to take one bounce on the theory that the ball arrives sooner this way. Suppose that after the bounce the ball rebounds at the same angle theta as it had when released, but loses half its speed. Assuming the ball ...
*October 2, 2007 by CONFUSED!!!!*

**Math (logic and problem solving)**

a rubber ball is dropped froma building that is 16 meters high. Each time the ball bounces, it bounces up half as high as the previous bounce. It is caught by Romer, the wonder dog, when it bounces 1 meter high. How many meters did the ball travel before it was caught?
*October 30, 2011 by sally*

**Tennessee Technological university **

Math if a rubber ball drops from a height of 28 meters, and on each bounce it rebounds up 30% of its previous height, how far will it traveled at the moment it hits the ground for the 16th time
*November 30, 2015 by Brytanie*

**Math**

A ball is dropped vertically. It reaches a height of 1.6m on the first bounce. The height of each subsequent bounce is 80% of the previous bounce. A. Find the height the ball reaches on the 6th bounce. B. Find the sum of the first seven terms of this sequence.
*March 19, 2015 by Sam*

**math**

A basketball is dropped from a height and it rebounds. Each time the basketball rebounds to a height of 200 cenitmeters. What height will the ball bounce on the third rebounds?
*February 28, 2012 by Sydney*

**Math**

Look at the chart below: Bounce: 0 1 2 3 4 Height: 100 50 25 13 6 How high do you think the ball will bounce on the 5th bounce? Explain. Please Help!! Thank You!
*February 5, 2009 by Happy Face*

**Physics **

A ball is dropped from a height of 20m. When it bounces, it rebounds with a speed that is one half of the speed at which it hits the ground. How high does it bounce?
*March 12, 2013 by Kit*

**Physics **

A ball is dropped from a height of 20m. When it bounces, it rebounds with a speed that is one half of the speed at which it hits the ground. How high does it bounce?
*March 12, 2013 by Sam*

**math**

A ball bounces back .06 of its height on every bounce. If a ballistic dropped from 200feet, how high does it bounce on the fifth bounce? Round to nearest tenth.
*August 27, 2012 by m*

**Algebra II**

Help me with this, please... A ball is dropped vertically from a height of 80 meters. After each bounce, the ball reaches a maximum height equal to 60 percent of maximum height of the previous bounce. a. Write the first three terms of the sequence. Explain how you know what ...
*April 10, 2014 by Me and I*

**Phisics**

A ball is dropped from the initial height h1 above the concrete floor and rebounds to a height of equal to 67% of the initial height h1. What is the ratio of the speed of the ball right after the bounce to the speed of the ball just before the bounce? This ratio is called ...
*October 6, 2011 by Logan*

**physics**

A ball is dropped from the initial height h1 above the concrete floor and rebounds to a height of equal to 60% of the initial height h1. What is the ratio of the speed of the ball right after the bounce to the speed of the ball just before the bounce? This ratio is called ...
*October 19, 2011 by Anonymous*

**Algebra 2**

A ball is dropped from 400 ft what is the height of the ball on the 6th bounce? 1 bounce =280 ft 2 bounce= 196 ft 3 bounce = 137.2 How do I figure this out?
*February 6, 2014 by Ana*

**math**

when a ball falls vertically off a table it rebounds 75% of its height after each bounce. if it travels a total of 490 cm, how high was the table top above the floor
*February 17, 2009 by franc*

**Math**

I need some help with these quesitons 1. a1 = -1, and an = 4/3an-1 for n = 2, 3, 4, ___. What is the common ration, r, for this sequence? 2. A rubber ball is dropped from a height of 50 ft. Assume that each bounce of the ball is vertical and that each bounce reaches a height ...
*June 7, 2013 by mysterychicken*

**Math**

I need some help with these quesitons 1. a1 = -1, and an = 4/3an-1 for n = 2, 3, 4, ___. What is the common ration, r, for this sequence? 2. A rubber ball is dropped from a height of 50 ft. Assume that each bounce of the ball is vertical and that each bounce reaches a height ...
*June 8, 2013 by mysterychicken*

**Math**

Look at the chart below: Bounce: 0 ~ 1 ~ 2 ~ 3 ~ 4 ---------------------- Height: 100 50 25 13 6 The ordered pairs are {(0,100), (1,50), (2,25), (3,13), (4,6)} * How high do you think the ball will bounce on the 5th bounce? Explain. Please Help!! Thank You!
*February 5, 2009 by Happy Face*

**Math**

a special rubber ball is dropped from the top of a wall that is 64 feet high. each time the ball bounces it rises half as high as the distance it fell. The ball is caught when it bounces 1foot high. how many times did the ball bounce?
*February 20, 2012 by Jewell*

**math sequence**

A ball is droped from a height of 16 m on each bounce, it rebounds 0.5 of the distance it fell how far has the ball traveled. When it hits the ground for the fifth term?
*January 21, 2012 by Abdela said yimer*

**Math**

Look at the Chart below: Then answer the question. Bounce: 0, 1, 2, 3, 4 Height: 100, 50, 25, 13, 6 (cm.) Ordered pairs: {(0,100), (1,50), (2,25), (3,13), (4,6)}. * How high do you think the ball will bounce on the 5th bounce? Explain. Please Help!! Thank you!!
*February 5, 2009 by HAPPY FACE (I NEED MS. SUE OR WRITEACHER!!) HELP!!*

**6th grade**

each time a ball bounces it returns to a height 2/3 the hight of the previous bounce. after the third bounce, the ball returns to a hight of 4ft. from what height was it dropped
*November 18, 2010 by rebecca*

**Math**

This chart shows how high a ball bounces when dropped from different heights If this ball is dropped from 350 in how high will it bounce? Drop in inches Bounce Height 50 25 100 50 150 75 200 100 A.200 B.175 C.150 D.120 B?
*February 7, 2013 by Jerald*

**math **

A tennis ball is dropped from a height of 7 ft. If the ball rebounds 2/3 of its height on each bounce, how far will the ball travel before coming to rest? (Find the total distance that the ball will travel before it stops bouncing.) i need help i don't know which formula to ...
*September 29, 2014 by gisela*

**algebra 2**

Lizette drops a ball from a height of 256 feet. The peak height after each bounce is 75% the previous height. How much vertical distance does the ball travel from the time she drops it until it touches the ground after its fourth bounce
*April 9, 2014 by Kathy*

**physics**

A ball is dropped from 1.5 m and rebounds to 1.2m. How many times will it bounce before losing 90% of it's energy? I assumed energy was hight times gravity so when the rebound was only 10% of the original amount, 90% of the energy is lost. Is this the correct idea? I ...
*March 20, 2011 by Mark*

**Physics**

2. Consider the ball example in the introduction when a ball is dropped from 3 meters. After the ball bounces, it raises to a height of 2 meters. The mass of the ball is 0.5 kg a. What is the speed of the ball right before the bounce? b. How much energy was converted into heat...
*November 5, 2015 by Sarah*

**math**

A ball dropped 16 feet. The height of each bounce of the ball is 8 feet, 4 feet, 2 feet and so on. How high will the sixth bounce be show all of your work
*February 12, 2013 by lee*

**Math**

Please explain how to figure out the following 7th grade math problem: If a rubber ball bounces exactly 1/2 the height from which it is dropped; and it is dropped from the top of a building that is 64 meters tall, how high will the ball bounce on its eighth bounce?
*October 30, 2007 by Jaleel*

**maths lit**

a ball is dropped from a height of 2r1/3 meters. It bounces to 3/4 of the height from which it fell at each boune. A) determine the height the ball reaches after one bounce. B) how many bounces does it take to bounce less than 1 meter high??
*January 31, 2013 by senzo*

**Math**

A ball is thrown 16 m into the air. The ball falls, rebounds to half its previous height, and falls again. If the ball continues to rebound and fall in this manner, find the total distance the ball travels until it hits the ground for the sixth time.
*May 24, 2014 by Han*

**AP Physics **

A baseball player throwing the ball from the outfield usually allows it to take one bounce on the theory that the ball arrives sooner this way. Suppose that ball hits the ground at an angle θ and then bonuses but loses half of its speed. A. Assuming that the ball is ...
*September 22, 2015 by Rachel *

**8th grade math **

A rubber ball loses 30% of its height each A rubber ball loses 30% of its height with each bounce How high is the first bounce if the ball is dropped from a height of 500 cm?
*May 31, 2015 by Carlos *

**math**

A rubber ball is dropped from a height of 729 feet, and at each bounce it rebounds one-third of the height from which it last fell. How far has the ball travelled by the time it strikes the ground for the 5th time?
*November 29, 2013 by Jasen*

**algebra 2**

A rubber ball is thrown 20 feet into the air. If it rebounds 3/5 of the height, how far will it have traveled after the fifth bounce?
*May 10, 2013 by Sasha*

**algebra 2**

A rubber ball is thrown 20 feet into the air. If it rebounds 3/5 of the height, how far will it have traveled after the fifth bounce?
*May 10, 2013 by EDNA*

**Math M131A**

a rubber ball has the property that on any bounce it returns to 1/3 of the height from which it just fell. Suppose the ball is dropped from 108 ft How far has the ball traveled by the fourth bounce?
*September 24, 2015 by sheila*

**physics**

a ball is dropped from a height of 10 meters.if the energy of the ball is reduced by 40% after striking the ground,how high can the ball bounce back?
*February 16, 2012 by sherry*

**PreCalc - Sequence**

A ball is dropped from a height of 20 ft and always rebounds 1/4 of the distance fallen. A. write a sequence for the first 3 rebound heights B. How high is the 6th rebound? C. Find the sum of all possible rebounds. I keep getting numbers that are too high. I don't think I have...
*July 27, 2011 by Joe*

**physics**

A ball is tossed so that it bounces off the ground, rises to a height of 0.90 m, and then hits the ground again 0.50 m away from the first bounce. How long is the ball in the air between the two bounces? What is the ball's velocity in the x-direction? What is the ball's speed ...
*January 17, 2012 by anika*

**physics**

A ball is tossed so that it bounces off the ground, rises to height of 2 m, and then hits the ground again 0.75 m away from the first bounce. a. How long is the ball in the air between the two bounces? b. What is the velocity in the x-direction of the ball? c. What is the ...
*January 19, 2012 by steve bob joe*

**Science**

A ball is dropped from a height of 10m .If the energy of ball reduces by 40% after striking the ground, how much high can the ball bounce back?
*February 25, 2012 by Sharma*

**science**

A ball is dropped from a height of 10 m. If the energy of the ball reduces by 40% after striking the ground, how much high can the ball bounce back? (g=10m/s2)
*February 22, 2015 by Anonymous*

**science**

A ball is dropped from a height of 10 meter.If the energy of the ball reduces by 40% after striking the ground, how much high can the ball bounce back?
*December 17, 2015 by Reem*

**math**

a ball is dropped from a height of 5m. after each bounce, the ball rises to 45% of its previous height. what the total vertical distance that the ball has travelled after it has hit the ground for for the 6th time? what are the formulas? because the ball bounces twice each time
*November 18, 2008 by tee*

**math**

a ball is dropped from a height of 3m and bounces on the ground . At the top of each bounce, the ball eaches 60% of its previous height. Calculate the total distance travelled by the ball when it hits the ground for the fifth time
*December 17, 2011 by Melissa*

**math**

a ball is dropped 128 feet from the roof of a building with each bounce the ball goes up exactly half its previous height. A man is sitting at his desk on the second floor. How many times will he see the ball if his eye level is 15 feet above the ground?
*February 10, 2011 by sammie*

**math**

a ball tossed to a height of 4 meters rebounds 40% of its previous height. the total distance travelled by the ball by the time it comes to rest is?
*March 10, 2013 by ross*

**Physics**

A billiard ball strikes and rebounds from the cushion of a pool table perpendicularly. The mass of the ball is 0.38 kg. The ball approaches the cushion with a velocity of +2.10 m/s and rebounds with a velocity of -2.00 m/s. The ball remains in contact with the cushion for a ...
*October 7, 2012 by Cheng*

**physics**

A billiard ball strikes and rebounds from the cushion of a pool table perpendicularly. The mass of the ball is 0.38 kg. The ball approaches the cushion with a velocity of +2.30 m/s and rebounds with a velocity of -1.90 m/s. The ball remains in contact with the cushion for a ...
*November 11, 2013 by bb*

**physics**

To make a bounce pass, a player throws a 0.60-kg basketball toward the floor. The ball hits the floor with a speed of 6.5 m/s at an angle of 57° from the vertical. If the ball rebounds with the same speed and angle, what was the impulse delivered to it by the floor?
*October 27, 2010 by aok*

**Physics**

To make a bounce pass, a player throws a 0.60-kg basketball toward the floor. The ball hits the floor with a speed of 5.5 m/s at an angle of 59° from the vertical. If the ball rebounds with the same speed and angle, what was the impulse delivered to it by the floor?
*November 11, 2010 by Evab*

**physics**

To make a bounce pass, a player throws a 0.70-basketball toward the floor. The ball hits the floor with a speed of 5.9 at an angle of 70 to the vertical.If the ball rebounds with the same speed and angle, what was the impulse delivered to it by the floor?
*October 17, 2011 by aznkid*

**math**

A certain ball is dropped from an altitude of 1 meter and rebounds one-half of it's previous altitude. What is the total distance the ball has traveled when it hits the floor the 40th time?
*September 5, 2013 by Jacob*

**MATH :-\**

Stumped again .. A ball was dropped and measured rebound heights (in ft.) after each bounce. It was found that the rule y= 15(0.80^x) could be used to predict the rebound height of the ball, where y is the bounce height and x is the bounce number. From what initial height did ...
*December 18, 2012 by MaryJo*

**math**

A superball is dropped from a height of 2 m and bounces 90% of its original height on each bounce. (a) When it hits the ground for the eighth time, how far has it traveled? (b) How high off the floor is the ball on the eighth bounce?
*June 8, 2012 by Angie*

**math**

cory drops a bouncing ball form a height of 50 ft and it rebounds to 90% of its previous height.find the total distance the ball will have travelled when it hits the ground for the fifth time
*May 12, 2010 by Dennis*

**Calculus**

Hard rubber ball is thrown down from a building with a height of 5 metres. After each bounce, the ball rises to 4/5 of its previous height. Total vertical distance d ball has travelled at the moment it hits the ground for the 8th time, to the nearest 10th of a metre, is.....
*September 18, 2011 by Anonymous*

**physics**

Your opponent, in a desperate attempt to return your wicked serve, makes a high lob of the tennis ball that causes it to land out of bounds on the asphalt course behind you. It then bounces so that it just barely clears a 3.90 m wall that is 2.32 m from where the ball hit the ...
*September 22, 2014 by afia*

**math **

Fay's rubber ball bounces exactly half the height from which it is dropped. she drops the ball from the top of a building that is 64 meters tall. how high will the ball bounce on its eight bounces? please help me
*October 28, 2013 by jasmin*

**PED 212**

All tasks have rules. What is the rule in the example illustrated below? Start with one partner making an underhand serve to the wall. On the rebound, let the ball bounce before the second partner volleys the ball back to the wall. Try to keep the ball above the line. When ...
*January 23, 2015 by Monica*

**precalc**

h = -15 sin (π/7 (t-2)) + 42 h is the height of the ball above the floors in inches at time t seconds 1) what is the highest the ball will ever bounce? 2) when is the first time the ball bounces that high? 3) write a general expression for the times at which the ball is ...
*October 28, 2015 by yani*

**physics**

A ball is dropped from 1.5m and bounces back up 1.2m. How many times will the ball bounce before it loses 90% of its energy? I figued since the ball bouced .8 times the original hight and 10% of 1.5m is .15m that that when the bounce hight reached.15m that 90% of the energy (...
*March 20, 2011 by Mark*

**math**

how do i work out the following word problem. a particular ball retains half of its heght on each bounce when dropped from a height of 80 m. give the height of the ball on the fifth bounce after being dropped?(will the ball comes to rest?)
*May 19, 2012 by ladane*

**physics**

A 45.5-g Super Ball traveling at 29.0 m/s bounces off a brick wall and rebounds at 19.5 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 4.15 ms, what is the magnitude of the average acceleration of the ball during this time interval?
*February 1, 2012 by Anonymous*

**physics**

A 47.0-g Super Ball traveling at 26.5 m/s bounces off a brick wall and rebounds at 20.5 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.10 ms, what is the magnitude of the average acceleration of the ball during this time interval?
*January 25, 2013 by tori*

**Physics**

A 47.0-g Super Ball traveling at 29.5 m/s bounces off a brick wall and rebounds at 15.5 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 5.00 ms, what is the magnitude of the average acceleration of the ball during this time interval?
*September 14, 2014 by Rin*

**Physics**

A 47.0-g Super Ball traveling at 29.5 m/s bounces off a brick wall and rebounds at 15.5 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 5.00 ms, what is the magnitude of the average acceleration of the ball during this time interval?
*September 14, 2014 by Anonymous*

**physics**

To make a bounce pass, a player throws a 0.60-kg basketball toward the floor. The ball hits the floor with a speed of 5.5 m/s at an angle of 72° from the vertical. If the ball rebounds with the same speed and angle, what was the impulse delivered to it by the floor? what ...
*October 19, 2011 by !!!!*

**math**

i am having difficulties figuring this out.... a ball has dropped from a height of 15m and bounces 60% of the previous height. the total distance ball travels after the 9th bounce is... i got this equation done but i do not know how to calculate this to find the answer 15(0.6^...
*January 24, 2011 by jackie*

**maths**

A ball is dropped from a height of 1 metre. At every bounce it travels half of the height it travelled it with the previous flight. Find the total distance travelled when the ball comes to rest.
*December 27, 2012 by anitha*

**physics 101**

A 51.5-g Super Ball traveling at 29.0 m/s bounces off a brick wall and rebounds at 19.0 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.60 ms, what is the magnitude of the average acceleration of the ball during this time interval?
*September 7, 2011 by Anonymous*

**Physics**

A 50.0 g Super Ball traveling at 27.0 m/s bounces off a brick wall and rebounds at 17.0 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 4.00 ms, what is the magnitude of the average acceleration of the ball during this time interval? (...
*January 24, 2013 by Robert *

**physics**

A 52.5g super ball traveling at 28.0m/s bounces off a brick wall and rebounds at 18.5m/s. A high speed camera records this event. If the ball is in contact with the wall for 4.10ms, what is the magnitude of the average acceleration of the ball during this time interval?
*February 4, 2013 by george*

**Math**

A ball rebounds the ground to a height of 72 cm, and each time it rebounds to two thirds of the height. Estimate the total distance the ball travels before it comes to rest
*November 22, 2014 by Brian*

**Physics 1 (college)**

Chap. 7, #36. (II) A ball is dropped from a height of 1.50 m and rebounds to a height of 1.20 m. Approximately how many rebounds will the ball make before losing 90% of its energy?
*August 8, 2011 by Anonymous*

**Physics**

A ball is dropped from a height of 1.45m and rebounds to a height of 1.21m. Approximately how many rebounds will the ball make before losing 92% of its energy?
*March 3, 2014 by john*

**college physics**

A small ball of mass m is aligned above a larger ball of mass M = 0.79 kg (with a slight separation), and the two are dropped simultaneously from height h = 2.0 m. (Assume the radius of each ball is negligible relative to h). (a) If the larger ball rebounds elastically from ...
*November 12, 2009 by Steve*

**Physics**

A 0.3 kg ball strikes a wall head on and then rebounds straight back. The initial speed was 10.0 m/s and the speed after it rebounds was 1.9 m/s. What was the magnitude of the total impulse on the ball during the collision in N*s?
*July 9, 2012 by M*

**physics**

You drop a ball from a height of 1.9m , and it bounces back to a height of 1.3m . a)What fraction of its initial energy is lost during the bounce? b)What is the ball's speed just before the bounce?
*October 11, 2012 by Andrew*