Thursday

July 24, 2014

July 24, 2014

Number of results: 12,562

**physics**

a boy stands on a cliff overlooking a lake below. He throws a rock at an initial velocity of 8.0m/s,at an angle 25 degrees above the horizontal. The lake's surface is 4.5 m lower than the point the rock was released. Find the speed of the rock just before it hits the surface ...
*November 7, 2011 by bec*

**physics**

A man leans over the edge of a cliff and throws a rock upward at 4.9 m/s. Neglecting air resistance, two seconds later the rock's speed is what?
*January 30, 2011 by susan*

**Physics**

A 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. Find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earth’s velocity. Earth’s mass is 6.0 × 1024 kg. Show all your work, assuming the...
*January 27, 2012 by Pat*

**physics**

A small rock is thrown vertically upward with a speed of 13.0from the edge of the roof of a 37.0 tall building. The rock doesn't hit the building on its way back down and lands in the street below. Air resistance can be neglected. A) What is the speed of the rock just before ...
*September 3, 2012 by joe*

**biology**

If you toss a coin and it comes up tails on eight consecutive tosses, what is the likelihood it will come up heads on the ninth toss?
*April 3, 2011 by demi*

**physics**

A 2.2 kg rock initially at rest loses 412 J of potential energy while falling to the ground. Assume that air resistance is negligible. Calculate the kinetic energy that the rock gains while falling. What is the rock's speed just before it strikes the ground?
*January 10, 2013 by Noah*

**Physics**

A rock, which weighs 350 lb in air, weighs 226 lb when submerged in fresh water (62.4 lb/ft3). The volume of the rock is:
*December 16, 2010 by Sammy*

**Physics**

A rock, which weighs 350 lb in air, weighs 226 lb when submerged in fresh water (62.4 lb/ft3). The volume of the rock is:
*December 16, 2010 by Ken*

**AP Physics**

A rock, which weighs 350 lb in air, weighs 226 lb when submerged in fresh water (62.4 lb/ft3). The volume of the rock is:
*December 16, 2010 by Tony*

**Physics**

. A rock is thrown up into the air with an initial velocity of 15m/s up. What is the rock's velocity after 0.40 seconds?
*June 8, 2014 by Bob*

**Physics **

A rock thrown straight up with a velocity of 29 m/s from the edge of a building just misses the building as it comes down. The rock is moving at 44 m/s when it strikes the ground. How tall was the building? The acceleration of gravity is 9.8 m/s Answer in units of m
*September 3, 2012 by Diane*

**physics**

As a rock of mass 3.0 kg drops from the edge of a 60. meter high cliff, it experiences air resistance, whose average strength during the fall is 22. N. At what speed will the rock hit the ground? Answer 1.5 m/s 13 m/s 18 m/s 26 m/s 34 m/s
*February 5, 2014 by ashley*

**physics**

A rock is tossed straight up with a velocity of 37.1 m/s. When it returns, it falls into a hole 18.8 m deep. What is the rock's velocity as it hits the bottom of the hole?
*October 6, 2008 by Vishnu*

**Physics**

A rock is tossed straight up with a velocity of 32.1 m/s. When it returns, it falls into a hole 20.1 m deep. What is the rock's velocity as it hits the bottom of the hole?
*October 4, 2010 by Bala*

**Physics**

A rock is tossed straight up with a velocity of 33.9 m/s. When it returns, it falls into a hole 11.9 m deep. What is the rock's velocity as it hits the bottom of the hole?
*October 4, 2010 by Em*

**Phyiscs**

A rock is tossed straight up with a velocity of 33.9 m/s. When it returns, it falls into a hole 11.9 m deep. What is the rock's velocity as it hits the bottom of the hole?
*October 4, 2010 by Em*

**Physics**

A rock is tossed straight up with a velocity of 33.9 m/s. When it returns, it falls into a hole 11.9 m deep. What is the rock's velocity as it hits the bottom of the hole?
*October 4, 2010 by Em*

**Physics**

At a given instant in time, a 10-kg rock is observed to be falling with an acceleration of 7.0 m/s2. What is the magnitude of the force of air resistance acting upon the rock at this instant?
*March 4, 2012 by Jermaine*

**AP Physics**

A rock thrown straight up with a velocity of 30 m/s from the edge of a building just misses the building as it comes down. The rock is moving at 47 m/s when it strikes the ground. How tall was the building? The accelera- tion of gravity is 9.8 m/s2 . Answer in units of m.
*August 24, 2010 by Alex*

**Algebra**

A physics student stands at the top of hill that has an elevation of 37 meters. He throws a rock and it goes up into the air and then falls back past him and lands on the ground below. The path of the rock can be modeled by the equation y = –0.02x² + 0.8x + 37 where x is the ...
*April 4, 2014 by Sandra*

**Physics**

Omar throws a rock down with speed 12 m/s from the top of a tower. The rock hits the ground after 2.0 s. What is the height of the tower? (air resistance is negligible)
*December 3, 2010 by Jesse*

**Physics**

A rock is thrown horizontally from a bridge hits the water below 30 meter away in the horizontal direction. If the rock was in the air 2seconds, how tall is the bridge?
*February 28, 2014 by Anonymous*

**physics**

An Astronaut on the Moon drops a rock straight downward from a height of 1.25 meters. If the acceleration of gravity on the Moon is 1.62 meters per second squared, what is the speed of the rock just before it lands?
*October 1, 2011 by Erin*

**Cal Word Problem**

Use a(t)= -9.8 meters per secondas the acceleration due to gravity.(Neglect air resistance) The Grand Canyon is 1800 meters deep at its deepest point. A rock is dropped from the rim above this point. Write the height f the rock as a function of the time t in seconds. How long ...
*March 30, 2009 by Sarah*

**math**

You are standing on a bridge over a creek, holding a stone 20 feet above the water. 1. You release the stone. How long will it take the stone to hit the water? 2. You take another stone and toss it straight up with an initial velocity of 30 feet per second. How long will it ...
*January 21, 2010 by kat*

**Algebra **

I can't figure this out.. A physics student stands at the top of hill that has an elevation of 37 meters. He throws a rock and it goes up into the air and then falls back past him and lands on the ground below. The path of the rock can be modeled by the equation y = –0.02x² + ...
*April 4, 2014 by Sandra*

**physics**

At a given instant in time, a 4.2-kg rock is observed to be falling with an acceleration of 8.4 m/s2. To two decimal places, what is the magnitude of the force of air resistance acting upon the rock at this instant?
*February 27, 2012 by matt*

**Physics**

While visiting Planet Physics, you toss a rock straight up at 15 and catch it 2.4 later. While you visit the surface, your cruise ship orbits at an altitude equal to the planet's radius every 240 min . What is the mass of Planet Physics? Express your answer using two ...
*April 5, 2010 by Adam*

**Physics**

A boy stands on the edge of a building 7 meters high and throws a rock at 60-degree angle. The release point from his hand is 1.6 meters above his feet(so the release point above the ground is 8.6 meters.) The rock lands on the ground 15 meters away from the building at a ...
*November 21, 2008 by Anonymous*

**Physics**

A man stands on the roof of a 19.0 m-tall building and throws a rock with a velocity of magnitude 24.0 m/s at an angle of 38.0 degrees above the horizontal. You can ignore air resistance. Calculate the maximum height above the roof reached by the rock. got it.... 11.1 m ...
*September 16, 2006 by Josh*

**Physics**

Bryan tosses a 75.0 g rock into the lake. The rock leaves hus hand at a height of 175 cm above the ground travelling at 19.0 m/s. How high above the ground will the rock travel if it is accidentally thrown straight up? How high above the water will it travel if it is thrown in...
*January 16, 2014 by Holly*

**math**

Suppose you toss a coin and it you win a dollar if it comes up heads. If it comes up tails you toss the coin again. This time you get two dollars if it is heads. If it is tails you toss it again. This time you win four dollars if it is heads, but if it is tails you toss it ...
*October 31, 2008 by brianne*

**Physics**

A 0.26 kg rock is thrown vertically upward from the top of a cliff that is 27 m high. When it hits the ground at the base of the cliff the rock has a speed of 24 m/s. (a) Assuming that air resistance can be ignored, find the initial speed of the rock. (b) Find the greatest ...
*March 29, 2010 by Carden*

**physics**

A rock is suspended by a light string. When the rock is in air, the tension in the string is 38.2 N. When the rock is totally immersed in water, the tension is 28.9 N. When the rock is totally immersed in an unknown liquid, the tension is 17.4 N. What is the density of the ...
*November 17, 2013 by Kyleigh*

**physics**

A students on a balcony uses a slingshot to shoots rock straight up at 29.4 m/s. If the rock takes 8.0 s seconds to hit the ground below the balcony, how high is the balcony above the ground?
*January 20, 2011 by Anonymous*

**words**

what word means to cause a commotion that could ruin a plan? clue:rock_ _ _ _ _ _ _ IT'S NOT ROCK THE BOAT!!!!!!!! rock the ship? Thank you for using the Jiskha Homework Help forum. Here are some things from the Online Thesaurus: Synonyms careen, lurch, pitch, roll, seesaw, ...
*March 15, 2007 by jay-jay : )*

**Equation help**

A physics student stands at the top of a hill that has an elevation of 56 meters. he throws a rock and it goes up into the air and then falls back past him and lands on the ground below. The path of the rock can be modeled by the equation y=0.04x^2+1.3x+56 where x is the ...
*April 2, 2014 by Alex*

**physics**

A man stands on the roof of a 19.0 m-tall building and throws a rock with a velocity of magnitude 30.0 m/sat an angle of 42.0 degrees above the horizontal. You can ignore air resistance. Calculate the maximum height above the roof reached by the rock. Calculate the magnitude ...
*September 14, 2009 by lina*

**Matter Grade 3**

I have to give an ex of a solid, liquid and gas and write a sentence telling what I know about the shape and volume of each. My ex for solid is rock;liquid is juice and gas is air. How would I make sentences describing shape and vol. For rock i did: The shape & volume of a ...
*April 21, 2007 by Jackie*

**Physics**

A man stands on the roof of a building that is 50 m tall and throws a rock with a velocity of 35 m/s at an angle of 50 degrees above the horizontal (a) What is the total time in the air (b) What is the horizontal distance from the base of the building to the point where the ...
*December 18, 2013 by Vlad*

**Physics**

A man stands on the roof of a building that is 50 m tall and throws a rock with a velocity of 35 m/s at an angle of 50 degrees above the horizontal (a) What is the total time in the air (b) What is the horizontal distance from the base of the building to the point where the ...
*December 18, 2013 by Vlad*

**Precalculus / Statistics**

I have a question about residual plots and regression equations. The data is: X Y 1 6.1 2 5.5 3 9.8 4 10.6 5 14.2 6 21.5 7 29.9 8 37.2 9 50.6 10 64 11 77.6 What function fits this data the best, between Exponential, Linear, Quadratic, and Power. Also how do you make residual ...
*May 24, 2007 by Ryan St. Laurent*

**physics**

When I toss a ball straight up, it travels up, stops, and then falls back to by hand. When it stops to change direction, how long is it stopped?
*December 16, 2008 by Johnny*

**science**

According to the rock cycle, which of the following transitions are possible? Assume an unlimited number of steps. A. An intrusive igneous rock becomes a sedimentary rock. B. A sedimentary rock becomes soil. C. A metamorphic rock becomes an extrusive igneous rock. D. All of ...
*January 28, 2009 by bianca*

**finite math (probability**

suppose you toss a coin 100 times and get 57 heads and 43 tails. Based on the results what is the probability that the next toss will be head.
*June 17, 2014 by carol*

**Physics**

A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H of 31.0 m above sea level, directed at an angle q above the horizontal with an unknown speed v0. a. The projectile remains in flight for 6.00 ...
*November 5, 2009 by Anonymous*

**physics**

A rock is thrown from the roof of a building with a velocity v at an angle of alpha from the horizontal. The building has height h. You can ignore air resistance. Calculate the magnitude of the velocity of the rock just before it strikes the ground
*September 10, 2010 by ami*

**science**

Q1: What rock comes before quartzite in the rock cycle? What rocks or rock could come just after quartzite in the rock cycle? Q2: A geologist finds a course grained rock with crystals arranged in rows. What can the geologist infer about how this formed and what group it ...
*October 30, 2007 by Wali*

**science**

earth science physical geology; If rock A cuts across rock B, then rock A is rock B a. younger than b. the same age c. older than
*January 7, 2009 by Ruthie*

**physics**

Bill kicks a rock oﬀ the top of his apartment building. It strikes a window across the street 12 m away. The acceleration of gravity is 9.8 m/s^2. If the window is 16 m below the position where Bill contacted the rock, how long was it in the air?
*February 19, 2013 by emma *

**science 6th grade**

Q1: What rock comes before quartzite in the rock cycle? What rocks or rock could come just after quartzite in the rock cycle? Q2: A geologist finds a course grained rock with crystals arranged in rows. What can the geologist infer about how this formed and what group it ...
*October 29, 2007 by Wali*

**pyshics**

A small rock moves in water, and the force exerted on it by the water is given by the equation Fd = kv, where k is a constant. The terminal speed of the rock is measured and found to be 2.0m/s. The rock is projected upward at an initial speed of 6.0m/s. You can ignore the ...
*October 19, 2011 by Timothy*

**physics**

A man stands on the roof of a 10.0 -tall building and throws a rock with a velocity of magnitude 24.0 at an angle of 42.0 above the horizontal. You can ignore air resistance. Calculate the magnitude of the velocity of the rock just before it strikes the ground.
*February 2, 2008 by Ava*

**Earth Science**

Rock A has pieces of Rock B included inside it. Which rock is older and how do you know? My answer- I know rock B is older but I don't know how to explain it. Can someone help?
*November 8, 2007 by Camron*

**Physics**

A 56 kg rock climber is climbing a "chimney" between two rock slabs as shown in the figure. The static coefficient of friction between her shoes and the rock is 1.02; between her back and the rock it is 0.70. She has reduced her push against the rock until her back and her ...
*February 10, 2010 by Web*

**science**

A man stands on the roof of a building of height 15.8m and throws a rock with a velocity of magnitude 25.2m/s at an angle of 32.7∘ above the horizontal. You can ignore air resistance. Part A Calculate the maximum height above the roof reached by the rock. y = 9....
*March 2, 2014 by sanele*

**Pre-Ap Physics**

A rock is projected from the edge of the top of a building with an initial velocity of 16.3 m/s at an angle of 39 ◦ above the horizontal. The rock strikes the ground a horizontal distance of 90 m from the base of the building. The acceleration of gravity is 9.8 m/s 2. ...
*September 24, 2012 by Maria*

**College Physics**

Consider a rock thrown off a bridge of height 78.5 m at an angle è = 25° with respect to the horizontal as shown in Figure P4.20. The initial speed of the rock is 15.6 m/s. Find the following quantities: (a) the maximum height reached by the rock (b) the time it takes the rock...
*September 12, 2011 by HELP*

**Math**

Elsa had a rubber disc that was red on one side and blue on the other. She tossed this disc 3 times. Draw a diagram showing all the possible outcomes she could get in 3 tosses of the same rubber disc 1st toss can be red or blue 2nd toss can be red or blue and 3rd toss can be ...
*December 6, 2012 by Jerald*

**Physics**

A man stands on the roof of a 10.0 -tall building and throws a rock with a velocity of magnitude 30.0 at an angle of 38.0 above the horizontal. You can ignore air resistance. Calculate the horizontal distance from the base of the building to the point where the rock strikes ...
*February 6, 2008 by Ava*

**physics**

Bill kicks a rock off the top of his apartment building. It strikes a window across the street 12 m away. The acceleration of gravity is 9.8 m/s2 . If the window is 24 m below the position where Bill contacted the rock, how long was it in the air? Answer in units of s.
*October 20, 2010 by Anonymous*

**physics**

Bill kicks a rock oﬀ the top of his apartment building. It strikes a window across the street 11 m away. The acceleration of gravity is 9.8 m/s 2 . If the window is 22 m below the position where Bill contacted the rock, how long was it in the air? Answer in units of s
*January 2, 2012 by kesha*

**physics**

A man stands on the roof of a 10.0 -tall building and throws a rock with a velocity of magnitude 30.0 at an angle of 34.0 above the horizontal. You can ignore air resistance. Calculate the horizontal distance from the base of the building to the point where the rock strikes ...
*February 21, 2012 by Rei*

**physics**

A man stands on the roof of a 10.0 -tall building and throws a rock with a velocity of magnitude 30.0 at an angle of 34.0 above the horizontal. You can ignore air resistance. Calculate the horizontal distance from the base of the building to the point where the rock strikes ...
*February 21, 2012 by Rei*

**algebra**

A coin is tossed 3 times. Find the probability of obtaining the following: a) heads on the first and last toss, and tails on the other toss b) at least 2 heads c) at most 2 heads
*July 7, 2013 by Eliza*

**Physics**

You fly 32.0 km in a straight line in still air in the direction 35.0 degree south of west. Find the distance you would have to fly straight south and then straight west to arrive at the same point.
*October 25, 2012 by Anonymous*

**physics**

A man stands on the roof of a 19.0 m tall building and throws a rock with a velocity of magnitude 30.0 m/s at an angle of 30.0 degrees above the horizontal. Ignore air resistance. Calculate the horizontal distance from the base of the building to the point where the rock ...
*September 14, 2011 by Meghan*

**Physics**

A rock is projected from the edge of the top of a building with an initial velocity of 19.6 m/s at an angle of 31 degrees above the horizontal. The rock strikes the ground a horizontal distance of 77 m from the base of the building. The acceleration of gravity is 9.8 m/s^2.(...
*November 1, 2011 by Julia*

**physics**

With what minimum speed must you toss a 160 ball straight up to hit the 15 -high roof of the gymnasium if you release the ball 1.7 above the ground? Solve this problem using energy.
*October 12, 2009 by Dan*

**Physics I**

Bill kicks a rock off the top of his apartment building. It strikes a window across the street 18m away. The acceleration of gravity is 9.8 m/s sqaured. If the window is 12 m below the position where bill contacted the rock, how long was it in the air? Answer in units of s.
*October 28, 2010 by Tee*

**physics**

Consider a rock that is thrown off a bridge of height 27 m at an angle θ = 24° with respect to the horizontal as shown in the figure above. If the initial speed the rock is thrown is 12 m/s, find the following quantities: (a) The time it takes the rock to reach its ...
*September 6, 2010 by frank*

**phy**

A baseball is hit nearly straight up into the air with a speed of 24 m/s. (a) How high does it go? (b) How long is it in the air?
*August 26, 2010 by ami*

**Math**

You toss tails and roll an even number ( when you toss a coin and roll a number cube) Find the probability. I thought It was 1/3 but I think that is wrong.
*March 23, 2011 by Lala*

**science**

If you toss a coin five times and it lands heads up each time, can you expect the coin to land heads up on the sixth toss? Explain. Please help! Thanks!
*November 27, 2012 by sam*

**physics**

You're on a magic bridge floating 25 meters above a lake. You through a rock at an angle of sixty degrees. It takes 5.8 seconds for the rock to reach it's highest point. (a) With what speed did you throw the rock? (b) How far away from the bridge horizontally did the rock ...
*March 15, 2012 by Nicole*

**Math**

Are the two events dependent or independent? Explain. a. Toss a dime, and then toss a quarter. b. Pick a card from a deck of cards. Keep the card and pick anot
*October 28, 2008 by Nicolla*

**Physics **

Isaac pushes rock, of a mass of 20kg, if from a cliff and it falls into the lake below. The cliff was 3m above the water. (Assume no air resistance) a. How much time did it take the rock to hit the water? b. What was its velocity when it was half of the distance to the water?
*February 20, 2012 by Hayli*

**Probability**

You toss a fair coin four times. Find the probability of no more than three heads given that at least one toss resulted in heads. Thank you very much!!
*January 27, 2012 by Erica*

**Physics**

1.You are stuck on a cliff and want to know how far to the bottom. You drop a rock and time how long it takes to hit the ground. If the rock takes 10 seconds to hit the ground how high is the cliff? How fast was the rock going to impact? 2. You throw a plate off your roof with...
*March 22, 2012 by Anonymous*

**physics**

Bob shoots an arrow straight up into the air at 78.5 m/s. 1)What is the maximum height of the arrows flight? 2)How long is it in the air?
*October 1, 2012 by kadeem*

**physics**

A rock stuck in the tread of a 57.0 cm diameter bicycle wheel has a tangential speed of 3.00 m/s. When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2. A) What is the magnitudes of the rock's angular acceleration at t=1.60 s? B) At what time is the ...
*November 26, 2010 by Steph*

**physics**

Toss a baseball bat through the air and it wobbles about its ____________________. A) light end. B) center of mass. C) heavy end.
*March 1, 2012 by jim*

**physics**

A soccer player kicks a rock horizontally off a cliff 42.9 m high into a pool of water. If the player hears the sound of the splash 3.16 s later, what was the initial speed given to the rock? Assume the speed of sound in air to be 343 m/s.
*October 11, 2009 by Anonymous*

**Physics**

A soccer player kicks a rock horizontally off the a 40 m high cliff into the pool of water. if the player hears the sound of the splash 3 sec., what is the initial speed given to the rock? Assume the speed of the sound in air to be 343 m/s.
*May 12, 2010 by Anonymous*

**physics**

A soccer player kicks a rock horizontally off a 41.7 m high cliff into a pool of water. If the player hears the sound of the splash 3.08 s later, what was the initial speed given to the rock? Assume the speed of sound in air to be 343 m/s.
*May 24, 2010 by lau*

**physics**

A soccer player kicks a rock horizontally off a 40.0 m high cliff into a pool of water. If the player hears the sound of the splash 3.04 s later, what was the initial speed given to the rock? Assume the speed of sound in air to be 343 m/s.
*February 18, 2011 by eric*

**physics**

a soccer player kicks a rock horizontally off a 40.0-m-high cliff into a pool of water. if the player hears the sound of the splash 3.00 s later, what was the initial speed given to the rock? assume the speed of sound in air to be 343m/s.
*February 28, 2013 by suzanne*

**math **

A ball is shot straight up into the air with initial velocity of 45 ft/sec. Assuming that the air resistance can be ignored, how high does it go?
*October 4, 2010 by Rebecca*

**Calculus**

A ball is shot straight up into the air with initial velocity of 47 ft/sec. Assuming that the air resistance can be ignored, how high does it go?
*February 2, 2011 by Anonymous*

**Physics**

Bryan tosses a 75.0 g rock into the lake. the rock leaves hus hand at a height of 175 cm above the ground travelling at 19.0 m/s. How high above the ground will the rock travel if it us accidentally bryan tosses a 75.0 g rock into the lake. The rock leaves hus hand at a height...
*January 16, 2014 by Holly*

**physics**

An astronaut on a distant planet wants to determine its acceleration due to gravity. The astronaut throws a rock straight up with a velocity of + 15.5 m/s and measures a time of 13.9 s before the rock returns to his hand. What is the acceleration (magnitude and direction) due...
*June 17, 2013 by louis aaaa*

**physics**

An astronaut on a distant planet wants to determine its acceleration due to gravity. The astronaut throws a rock straight up with a velocity of 13.5 m/s and measures a time of 21.8 s before the rock returns to his hand. What is the acceleration due to gravity on this planet? (...
*January 15, 2012 by Jen*

**Math**

Before a football game, a coin toss is used to determine which team will kick off. The height h (in feet) of a coin above the ground t seconds after being flipped up into the air is given by the following equation. h = -16t2 + 34t + 15. How long does a team captain have to ...
*September 28, 2012 by Mark*

**physics**

Stemming a chimney. A rock climber of mass 71 kg wants to make her way up the crack between two rocks as shown in the figure below. The coefficient of friction between her shoes and the rock surface is ìS = 0.90. What is smallest normal force that she can apply to both ...
*October 6, 2011 by Mel*

**Physics **

An astronaut on a distant planet wants to determine its acceleration due to gravity. The astronaut throws a rock straight up with a velocity of + 14.2 m/s and measures a time of 22.2 s before the rock returns to his hand. What is the acceleration (magnitude and direction) due ...
*September 6, 2012 by Meghan*

**Physics**

The force of gravity on a 2.0 kg rock is twice as great as on a 1 kg rock. Why doesnt the heavier rock fall faster?
*July 13, 2011 by Capreeca*

**Physics**

a small rock with mass 0.20 kg is released from rest at point A which is at the top edge of a large, hemispherical bowl with radius R = .5m. assume that the size of the rock is small compared to R, so that the rock can be treated as a particle, and assume that the rock slides ...
*October 23, 2012 by Frankie*

**physics**

A rock is tossed straight up with a velocity of 37.1 m/s. When it returns, it falls into a hole 18.8 m deep. What is the rock's velocity as it hits the bottom of the hole? Responses The gain in kinetic energy equals the loss of potential energy. (1/2) M (V2^ - V1^2) = M g *(18...
*October 8, 2008 by Vishnu*

**earth**

Could you tell a story of the rock cycle using a rock called Roger the Rock??
*February 23, 2010 by Mitch*

**physics**

How high will a 1.85 kg rock go if thrown straight up by someone who expends 80.0 J of energy on it?
*September 29, 2012 by tracy*

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