Saturday

April 18, 2015

April 18, 2015

Number of results: 30,912

**physics**

A discus thrower (with arm length of 1.2 m) starts from rest and begins to rotate counterclockwise with an angular acceleration of 3.0 rad/s2. (a) How long does it take the discus thrower's speed to get to 4.5 rad/s? (b) How many revolutions does the thrower make to reach the ...
*March 17, 2011 by HELP!!!!*

**Physics**

A discus thrower (with arm length of 1.2 m) starts from rest and begins to rotate counterclockwise with an angular acceleration of 3.6 rad/s2. (a) How long does it take the discus thrower's speed to get to 5.1 rad/s? (b) How many revolutions does the thrower make to reach the ...
*June 14, 2012 by James*

**physics**

A discus thrower (with arm length of 1.2 m) starts from rest and begins to rotate counterclockwise with an angular acceleration of 1.8 rad/s2. (a) How long does it take the discus thrower's speed to get to 3.4 rad/s? (b) How many revolutions does the thrower make to reach the ...
*October 17, 2012 by Marwan*

**Physics**

A bungee jumper with mass 61.3 kg jumps from a high bridge. After reaching his lowest point, he oscillates up and down, hitting a low point eight more times in 31.8 s. He finally comes to rest 25.3 m below the level of the bridge. Calculate the spring constant of the bungee ...
*November 27, 2011 by Maggie*

**physics**

A golf ball is dropped from rest from a height of 8.20 m. It hits the pavement, then bounces back up, rising just 5.40 m before falling back down again. A boy then catches the ball when it is 1.40 m above the pavement. Ignoring air resistance, calculate the total amount of ...
*September 8, 2012 by tom*

**physics**

A golf ball is dropped from rest from a height of 8.20 m. It hits the pavement, then bounces back up, rising just 5.40 m before falling back down again. A boy then catches the ball when it is 1.40 m above the pavement. Ignoring air resistance, calculate the total amount of ...
*September 8, 2012 by andy*

**physics**

A golf ball is dropped from rest from a height of 9.60 m. It hits the pavement, then bounces back up, rising just 5.30 m before falling back down again. A boy then catches the ball when it is 1.11 m above the pavement. Ignoring air resistance, calculate the total amount of ...
*September 17, 2012 by Anonymous*

**physics**

A golf ball is dropped from rest from a height of 8.40 m. It hits the pavement, then bounces back up, rising just 5.30 m before falling back down again. A boy then catches the ball when it is 1.20 m above the pavement. Ignoring air resistance, calculate the total amount of ...
*September 18, 2012 by gary*

**Physics **

A girl coasts down a hill on a sled, reaching a level surface at the bottom with a speed of 6.7 m/s. The coefficient of kinetic friction between runners and snow is 0.038, and the girl and sled together weigh 603 N. The acceleration of gravity is 9.8 m/s2 . How far does the ...
*November 5, 2014 by Kayla Johnson*

**Physics**

A 50.0 kg diver steps off a diving board and drops straight down into the water. The net force when in the water is an upward 1450 N. If the diver comes to rest 5.0 m below the water's surface, what is the total distance between the diving board and the diver's stopping point ...
*March 9, 2011 by Becky*

**physics help**

A car travels at 80 km/h on a level road in the positive direction of an x axis. Each tire has a diameter of 66 cm. Relative to a woman riding in the car and in unit-vector notation, what are the velocity at the (a) center, (b) top, and (c) bottom of the tire and the magnitude...
*April 15, 2010 by beav*

**physics**

A mass with an initial combined potential energy and kinetic energy of 10,000 joules is dropped onto a fence post to drive it into the ground. The post is driven 0.25 meters into the ground before it comes to rest with the mass sitting on top of the post. How much work was ...
*January 24, 2012 by Charles*

**physics**

While standing on a bridge 15.0 m above the ground, you drop a stone from rest. When the stone has fallen 3.10 m, you throw a second stone straight down. What initial velocity must you give the second stone if they are both to reach the ground at the same instant? Take the ...
*January 31, 2010 by Anonymous*

**physics**

While standing on a bridge 15.0 m above the ground, you drop a stone from rest. When the stone has fallen 3.10 m, you throw a second stone straight down. What initial velocity must you give the second stone if they are both to reach the ground at the same instant? Take the ...
*January 31, 2010 by brittany*

**physics**

While standing on a bridge 15.0 m above the ground, you drop a stone from rest. When the stone has fallen 5.00 m, you throw a second stone straight down. What initial velocity must you give the second stone if they are both to reach the ground at the same instant? Take the ...
*September 9, 2010 by bethany*

**physics**

While standing on a bridge 30.0 m above the ground, you drop a stone from rest. When the stone has fallen 3.20 m, you throw a second stone straight down. What initial velocity must you give the second stone if they are both to reach the ground at the same instant? Take the ...
*January 26, 2013 by brizett*

**Physics**

A truck on a straight road starts from rest and accelerates at 2.8 m/s^2 until it reaches a speed of 16 m/s. Then the truck travels for 16s at constant speed until the brakes are applied,stopping the truck in a uniform manner in an additional 3.6 s. How long is the truck in ...
*September 9, 2014 by Isaac*

**physics**

A 4.2 kg rock is initially at rest at the top of a cliﬀ. Assume that the rock falls into the sea at the foot of the cliﬀ and that its kinetic energy is transferred entirely to the water. How high is the cliﬀ if the temperature of 1.5 kg of water is raised ...
*February 13, 2012 by Anonymous*

**maths**

find the radius of the circle if length of arc is 4p cm and angle made by the arc at the centre is 40 deg.find the area made by the arc.
*February 23, 2013 by urvashi*

**physics**

A box of mass 65 kg hangs motionless from two ropes, as shown in the diagram above. The angle is 40 degrees. Choose the box as the system. The x-axis runs to the right, the y-axis runs up, and the z-axis is out of the page. What is the y-component of the gravitational force ...
*January 17, 2011 by freddy*

**Calculus**

A fence is 1.5m high and is 1m from a wall. A ladder must start from the ground, touch the top of the fence, and rest somewhere on the wall. Calculate the minimun lenght of the ladder. I drew a diagram and i ended up with a right angle triangle. i made the hypotenuse the ...
*April 10, 2010 by lala*

**business finance**

You have saved $15,000 for down payment on a car costing $55,000, and plan to finance the rest with a 5-year loan. The dealer is offering you a loan with a monthly payment of $1,050. What effective annual rate of interest is the dealer charging on the loan
*February 23, 2014 by sakiss*

**Physics**

An objectis thrown upward from the edge of a tall building with a velocity of 10m/s. Where will the object be 3s after it is thrown? Take g = 10m/s^2 15m above the top of the building 30m below the top of the building 15m below the top of the building 30m above the building
*October 13, 2011 by Lawrence*

**Physics**

A 58-kg vampire and 176-kg werewolf clash during the Feat of Strength part of the annual celebration of Festivus. The werewolf velocity just before the clash is 7 m/s and is directed upwards, while the vampire velocity at the moment of the collision is 12m/s and is directed ...
*November 1, 2012 by Emily*

**English**

Thank you very much for all your explanations. I still have a few doubts. I included two sentences you have already checked. I just wanted to be sure I used the best alternative. 1) They cut off our gas, light, and phone because we didn't pay the bills. 2) I fell off my bike ...
*February 27, 2012 by Henry2*

**Maths / physics**

Calculate the rest mass (In grams) of an object whose rest energy is equal to the energy released by a tonne of tnt the energy liberated by 1 g of tnt = 4kJ Rest energy = moc 2 1 tonne of tnt equals 10^6 x 4kJ = 4 x 10^6 kJ x (3.0^8)sqrd = 3.6 x 10^23kJ is this right ?? i ...
*August 27, 2013 by Wayne*

**physics**

A 73kg human sprinter can accelerate from rest to 12m/s in 2.7s . During the same interval, a 27kg greyhound can accelerate from rest to 19m/s .
*June 23, 2013 by Anonymous*

**math**

the coaches made the players run sprints down the football field to get in shape. the running backs had to run down the field 6 3/4 times. the linemen had to run down the field 6 5/8 times. Which group ran more?
*April 24, 2014 by monta*

**math (algerbra)**

A bricklayer's assistant starts building a wall, laying 50 bricks per hour. Two hours later the master comes and lays down 80 bricks per hour. x= number of hours since the assistant has been laying. Qusestion-------- Write expressions for the number of bricks the assistant has...
*November 11, 2007 by Erin W!!!!!!*

**physics**

A rocket is fired at a speed of 70.0 m/s from ground level, at an angle of 40.0 ° above the horizontal. The rocket is fired toward an 14.0-m high wall, which is located 21.0 m away. The rocket attains its launch speed in a negligibly short period of time, after which its ...
*October 9, 2012 by Anonymous*

**Please Check My Math Work**

Hi. - I solved this problem,but I am not sure if it is correct.If you can please tell me if it is right or if it is wrong what is wrong with it.: 6y^2-54= (3y-6)(2y+9) *Many of you may be are wondering why my title is,"[C]razy Baby. - [Iloveyou]"it is becuase of the boy that i...
*February 9, 2007 by [C]razy Baby.-[iloveyou] (Margie)*

**math**

5 sq ft= ___ in I have that this converts to 720 square inches but cannot convert it down to inches. I have no clue how to break this down to inches since square deals with area and we don't know the sides. Is it possible to break this down to inches?
*January 4, 2011 by m*

**Physics >.<**

A big truck has a mass of 5,000kg. It is moving down the road at a velocity of 15m/s. As it approaches a stop sign, the driver tries to stop, but the truck slides on ice and hits a car (mass = 500kg) that is stopped. After the collision, they move separately, the truck ...
*December 10, 2014 by Devynn*

**Maths Please Help**

Alex and Bella play the following game. They first choose a positive integer N, and take turns writing numbers on a blackboard. Alex starts first, and writes the number 1. After that, if the number k is on the board, the next player may write down either k+1 or 2k, if the new ...
*May 22, 2013 by Mathslover*

**Physics**

A stuntman drives a car over the top of a hill, the cross section of which can be approximated by a circular arc of radius 250 m. What is the greatest speed at which he can drive without the car leaving the road at the top of the hill?
*March 30, 2011 by Petros*

**physics**

Students in lab measure the speed of a steel ball launched horizontally from a table top to be 4.2 m/s. If the table top is 1.2 m above the floor, where should they place a 20 cm tall tin coffee can to catch the ball when it lands?
*October 5, 2011 by samantha*

**Physics.**

The top floor of a building is 40m above the basement. Calculate how much greater the water pressure is in the basement than on the top floor. Express your answer to two significant figures and include the appropriate units.
*March 27, 2014 by James *

**pyhsics**

The top floor of a building is 40m m above the basement. Calculate how much greater the water pressure is in the basement than on the top floor. Express your answer to two significant figures and include the appropriate units.
*April 3, 2014 by Phil*

**physics **

The top floor of a building is 40m m above the basement. Calculate how much greater the water pressure is in the basement than on the top floor. Express your answer to two significant figures and include the appropriate units.
*April 3, 2014 by Phil*

**college physics**

While standing on a bridge 15.0 m above the ground, you drop a stone from rest. When the stone has fallen 3.10 m, you throw a second stone straight down. What initial velocity must you give the second stone if they are both to reach the ground at the same instant? Take the ...
*January 31, 2010 by tina*

**college physics**

While standing on a bridge 15.0 m above the ground, you drop a stone from rest. When the stone has fallen 3.10 m, you throw a second stone straight down. What initial velocity must you give the second stone if they are both to reach the ground at the same instant? Take the ...
*January 31, 2010 by tina*

**physics**

While standing on a bridge 18.5 m above the ground, you drop a stone from rest. When the stone has fallen 2.80 m, you throw a second stone straight down. What minimal initial velocity must you give the second stone if they are both to reach the ground at the same instant? Take...
*February 7, 2011 by shaknocka*

**Physics**

While standing on a bridge 19.1 m above the ground, you drop a stone from rest. When the stone has fallen 3.40 m, you throw a second stone straight down. What minimal initial velocity must you give the second stone if they are both to reach the ground at the same instant? Take...
*September 9, 2012 by jhockens*

**Physics**

While standing on a bridge 18.3 m above the ground, you drop a stone from rest. When the stone has fallen 2.60 m, you throw a second stone straight down. What minimal initial velocity must you give the second stone if they are both to reach the ground at the same instant? Take...
*September 9, 2012 by jhockens*

**math**

Prove that (n(top)sigma r=1(bottom))^2-(n-1(top)sigma r=1(bottom))^2 =n^3 general formula for both notation is r
*March 6, 2014 by CHARLES BRONSON *

**OCHem**

The amount of methylcycloheane with the substituent in the equatorial orientation at room temperature (25C) would be The Gibbs free energy for axial methyl to equatorial methyl is -7.28Kj/mol (the universal gas constant is 8.314 j/deg-mol). I cant remember how to solve this...
*December 10, 2010 by Alex*

**physics**

A cart running on frictionless air tracks is propelled by a stream of water expelled by a gas-powered pressure washer stationed on the cart. There is a 1.0-m3 water tank on the cart to provide the water for the pressure washer. The mass of the cart, including the operator ...
*March 6, 2011 by HELP!!!!*

**physics**

A bath toy is floating stationary in water such that half of the toy is above water and half of the toy is below the water. A kid pulls the toy 3.9 cm down into the water and then lets go. The toy then proceeds to bob up and down. It bobs up and down 26 times in a min.
*January 10, 2015 by DS*

**math**

a city block 500ft by 500ft is an unobstructed paved lot, except for a small office building 100ft by 100ft, centered in the middle of the block. What's the shortest distance from the SW corner to the NE corner, going through the paved lot and along (but not through) the ...
*March 7, 2010 by sarah*

**algebra**

Tad was delivering lunch to a local office building. His first delivery was to the middle floor of the building. He then took th elevator up 4 floors for the next delivery, down 6 floors for his third delivery, and up 7 floors for his final delivery. He was then on the top ...
*April 14, 2011 by Tom*

**University Physics**

A 60-kg vampire and 194-kg werewolf clash during the Feat of Strength part of the annual celebration of Festivus. The werewolf velocity just before the clash is 5 m/s and is directed upwards, while the vampire velocity at the moment of the collision is 12m/s and is directed ...
*November 1, 2012 by Anonymous*

**bobpursley please help**

A coin with a diameter of 3.30 cm is dropped on edge onto a horizontal surface. The coin starts out with an initial angular speed of 16.1 rad/s and rolls in a straight line without slipping. If the rotation slows with an angular acceleration of magnitude 1.93 rad/s2, how far ...
*November 28, 2010 by ruby*

**Physics**

You set up a ramp on your desk at home. Marbles rolling down the ramp and horizontally off your desk consistantly land 52.0 cm from the base of your desk. Your desk is 69.0 cm high. If you pull your desk over to the window of your second story room and "launch" marbles to the ...
*November 5, 2009 by Anonymous*

**business**

Deliverable Length: 4-6 slides with notes Think about your current or past employer (or another company you are familiar with). Using the company as a whole, or the department you are most familiar with, evaluate the extent that management utilizes the classic management ...
*June 25, 2007 by ABE*

**Physics**

Assume you are a medieval knight attacking a castle with a canon. The ball leaves the cannon with a speed of 34.9 m/s. The barrel's angle with respect to the ground is 39.5 deg, and you make a perfect hit on the tyrant's chamber which is at the same level as the cannon's ...
*November 5, 2009 by Anonymous*

**business statistics**

1-A randomized block design ANOVA has five treatments and four blocks. The computed test statistic (value of F) is 4.35. With a 0.05 significance level, the appropriate table value and conclusion will be? 2-A randomized block experiment having five treatments and six blocks ...
*August 11, 2009 by Lesliam*

**Physics**

A 1900kg car starts from rest and drives around a flat 56-m-diameter circular track. The forward force provided by the car's drive wheels is a constant 1000N. a. What is the magnitude of the car's acceleration at t=13s? b. What is the direction of the car's acceleration at t=...
*March 9, 2010 by Kay*

**chemistry... HELP !!!!!!!**

For the reaction 2Co^3+ (aq) + 2Cl^- (aq) ----> 2Co^2+ + Cl2 (g) E^o = 0.46 V (STANDARD cell potential) what is the cell potential at (25 deg C) if the concentrations are [Co^3+] = 0.651M , [Co^2+]= 0.846 M, and [Cl^-] = 0.636 M and the pressure of Cl2 is PCl2= 9.30 atm ?
*November 5, 2012 by Ann*

**English**

1. You may have a jellyfish in the top middle (of the picture). 2. You may have a jellyfish on the top middle (of the picture).. 3. You may have a jellyfish at the top middle (of the picture). (Hello. Questions about how to use preposition? Are all the prepositions correct? ...
*August 31, 2009 by John*

**physics**

A friend is making an iMovie and wants your help designing a skateboard stunt. You estimate that your friend�s mass is four times greater than that of the skateboard. For the following questions, ignore friction. In one scenario, your friend starts by standing at rest ...
*March 11, 2014 by anonymous*

**Physics**

A 15 kg uniform ladder leans againt a wall in the atrium of a large hotel. The ladder is 8m long, and it makes an angle as 60 degree with the floor. The coefficient of static friction between the floor and the ladder is u+ 0.45. Assume the wall is frictionless. a) How far ...
*November 6, 2012 by Chong*

**Chemistry**

In order to raise the temperature of 5.0 Kg of water from 20 degrees C to 30 degrees C,m a 2.0 Kg iron bar is heated and then dropped into the water. what should the starting temperature of the bar be? (specific heat of Fe = 0.11 cal/g-deg.)
*February 23, 2010 by Mary*

**Physis Home work**

Two 0.85Mtrs -long pendulums hang side by side. The masses of the pendulum bobs are 50g and 70g . The lighter bob is pulled aside until its string is horizontal and is then released from rest. It swings down and collides elastically with the other bob at the bottom of its arc...
*November 1, 2011 by Don*

**Physis Home work**

Two 0.85Mtrs -long pendulums hang side by side. The masses of the pendulum bobs are 50g and 70g . The lighter bob is pulled aside until its string is horizontal and is then released from rest. It swings down and collides elastically with the other bob at the bottom of its arc...
*November 1, 2011 by Don*

**real estate finance**

Frank and Mary are buying a home for $187,500. Their Good Faith Estimate indicates they will be paying $2200 in closing costs and prepaid expenses plus they want to do a permanent buy-down on their interest rate and will be paying 2 1/2 discount points. They are making a 20% ...
*April 26, 2013 by tmouery*

**business**

I was given a list of terms and supposed to match them up to the description, but I got confused because I ended up using middle managers twice. I think you are only allowed to use each term once. The descriptions are: Managers who carry out the decisions of top management. ...
*November 6, 2006 by Anonymous*

**Physics**

Suppose you are hiking down the Grand Canyon. At the top, the temperature early in the morning is a cool 1°C. By late afternoon, the temperature at the bottom of the canyon has warmed to a sweltering 37°C. (a) What is the difference between the higher and lower temperatures in...
*April 3, 2008 by Will*

**Physics - Please Help**

A ruler stands vertically against a wall. It is given a tiny impulse at θ=0∘ such that it starts falling down under the influence of gravity. You can consider that the initial angular velocity is very small so that ω(θ=0∘)=0. The ruler has mass m= ...
*December 7, 2013 by Briggs*

**physics**

A 75.0 kg diver steps off a diving board and drops straight down into the water. The water provides an upward average net force 1060 N. If the diver comes to rest 4.9 m below the water's surface, what is the total distance between the diving board and the diver's stopping ...
*February 9, 2012 by strugglemcgee*

**physics**

A 51.0 kg diver steps off a diving board and drops straight down into the water. The water provides an upward average net force 1370 N. If the diver comes to rest 4.6 m below the water's surface, what is the total distance between the diving board and the diver's stopping ...
*January 26, 2013 by TJ Cloward*

**AP Physics**

A 67.0 kg diver steps off a diving board and drops straight down into the water. The water provides an upward average net force 1480 N. If the diver comes to rest 4.7 m below the water's surface, what is the total distance between the diving board and the diver's stopping ...
*December 2, 2013 by John*

**AP Physics**

A 67.0 kg diver steps off a diving board and drops straight down into the water. The water provides an upward average net force 1480 N. If the diver comes to rest 4.7 m below the water's surface, what is the total distance between the diving board and the diver's stopping ...
*December 2, 2013 by John*

**physics**

A 62.9 kg diver steps off a diving board and drops straight down into the water. The water provides an upward average net force 1350 N. If the diver comes to rest 4.3 m below the water's surface, what is the total distance between the diving board and the diver's stopping ...
*February 3, 2014 by Anonymous*

**physics**

A 71.0 kg diver steps off a diving board and drops straight down into the water. The water provides an upward average net force 1110 N. If the diver comes to rest 4.1 m below the water's surface, what is the total distance between the diving board and the diver's stopping ...
*February 12, 2014 by edgard*

**physics**

A 56.0 kg diver steps off a diving board and drops straight down into the water. The water provides an upward average net force 1310 N. If the diver comes to rest 4.1 m below the water's surface, what is the total distance between the diving board and the diver's stopping ...
*May 29, 2014 by Anonymous*

**Physics**

A 80.0 kg diver steps off a diving board and drops straight down into the water. The water provides an upward average net force 1320 N. If the diver comes to rest 5.1 m below the water's surface, what is the total distance between the diving board and the diver's stopping ...
*December 11, 2014 by Anonymous*

**Algebra 1**

The upward velocity of the water in the stream of a particular fountain is given by the formula v = -32t + 28, where t is the number of secondds after the water leaves the fountain. While going upward, the water slows down until, at the top of the stream, the water has a ...
*October 11, 2007 by Craig*

**statistics**

1-the graduate selection committee wants to select the top 10% of applicants. On a standardized test with a mean of 500 and a standard diviation of 100, what would be the cutoff score for selecting the top 10% of applicants, assuming that test is normally distributed?
*March 21, 2012 by debra*

**science**

3. Atmospheric pressure at the top of Mt. Everest is about 150 mm Hg. That is why climbers always bring oxygen tanks. If a climber carries a 12.0 liter tank with a pressure of 35,000 mm Hg, what volume will the gas occupy if it is released at the top of Mt. Everest?
*February 28, 2013 by ricardo *

**science**

3. Atmospheric pressure at the top of Mt. Everest is about 150 mm Hg. That is why climbers always bring oxygen tanks. If a climber carries a 12.0 liter tank with a pressure of 35,000 mm Hg, what volume will the gas occupy if it is released at the top of Mt. Everest?
*March 1, 2013 by alex*

**math**

A music stores stock of music includes new releasesand top ten hots on the ratio of 3:5. How many top ten hits are tthere in a shipment of 80???? What I did 3:5 *16:*16 48:80 Is it right or not plz tell. I am having so much difficult I in this one
*December 27, 2014 by ali*

**physics**

Some children go tobogganing on an icy hill. The start from the rest at the top of the hill. The toboggan and children have a combined mass of 94 kg. The height of the first hill a is 12.0m the height of b is 0, and the height of c is 3.0m. If friction is small enough to be ...
*June 15, 2012 by Melissa*

**calculus-rate problem**

A conical tank (with vertex down) is 10 feet acros the top and 12 feet deep. If water is flowing into the tank at a rate of 10 cubic feet per minute, find the rate of change of the depth of the water when the water is 8 feet deep.
*August 30, 2007 by beth*

**algebera**

For questions 1-3 use the following model. 1) How many cubes are in the base of the model? :3 :4*** :7 :2 2) How many cubes would be shown in the right view of the model? :3 :6 :7 :4*** 3) Which of the following is the top view for the model? :A*** :B :C :D 4) Which view ...
*February 10, 2015 by 3-D Views*

**Science**

Water is pumped from a stone basin up through a pipe 1 meter high. At that height, the water flows out through a tap and falls down through the air to the basin below, where the cycle begins again. What is the gravitational potential energy of 2.5 kilograms of water at the top...
*November 6, 2014 by Macie*

**physics**

in apool game,a cue ball traveling at 0.75 m/s hits the stationary eight ball The eight ball moves with a velocity of 0.25 m/s at an angle of 37 deg reletive to the cue balls inital direction assuming that the collision is inelastic at what angle will the que be deflected and ...
*February 4, 2008 by melissa*

**phys1**

A 528 kg automobile is moving at 20.4 m/s at a height of 5.0 m above the bottom of a hill when it runs out of gasoline. The car coasts down the hill and then continues coasting up the other side until it comes to rest. Ignoring frictional forces and air resistance, what is the...
*February 26, 2012 by opp*

**phyicis**

Homer Hickham and his buddies launched model rockets in the late 1950's when the US was trying to get a rocket into space. If homer launches a rocket from rest and its engine delivers a constance acceleration of 8.2 m/s^2 for 5.0seconds after which the fuel is used up by the ...
*October 29, 2012 by Matt*

**Chemistry**

Three liquids of differing densities are studied. Samples of liquid 1 and liquid 2 are placed in a container together. Liquid 1 rises to the top. Another sample of liquid 1 is placed in a different container together with liquid 3. This time, liquid 3 rises to the top. If all ...
*July 13, 2014 by Dulce*

**geometry**

ok,judy lies on the ground 45 feet from her tent. both the top of the tent and the top of the cliffare in her line of sight. her tent is 10 feet tall. about how high is the cliff
*November 6, 2008 by Quintasia*

**physics**

A snowball is thrown horizontally with a speed of 23.9 m/s from the top of a campus building. It takes the snowball 1.91 sec to travel from the top of the building to the parking lot below. How tall is the building?
*December 2, 2009 by Alex*

**trigo**

from the top of 90 meters high building it is observe that the top of another building make a 40 degree angle depression. if two buildings 75 meters apart how tall is the other building?
*October 18, 2011 by jayson austria*

**physics**

A spinning top, having an initial angular velocity ω = 3.3 rad/s is given the angular acceleration profile shown in the graph. What is the top's angular velocity at time t = 6 s
*September 24, 2013 by Sue*

**Math**

The base of a hill is -30 feet below sea level .,The top of the hill is 200 feet higher .What is the elevation of the top of the hill . Plz show me how to get the answer its confusing
*September 1, 2014 by Rian*

**Physics**

From the top of a tall building, a gun is fired. The bullet leaves the gun at a speed of 340 m/s, parallel to the ground. The bullet puts a hole in a window of another building and hits the wall that faces the window. (y = 0.42 m, and x = 7.2 m.)Determine the distances D and H...
*October 20, 2010 by Anonymous*

**physics**

From the top of a tall building, a gun is fired. The bullet leaves the gun at a speed of 340 m/s, parallel to the ground. The bullet puts a hole in a window of another building and hits the wall that faces the window. (y = 0.42 m, and x = 7.2 m.)Determine the distances D and H...
*October 21, 2010 by Anonymous*

**physics**

A motor drives a rope drum of 820 mm diameter, which in turn drags a component of mass 650 kg, 175 m up a slope that makes an angle of 8 degrees to the horizontal. the component starts from rest and uniformly reaches a velocity of 5.3 m/s on completion of its journey. use d'...
*June 7, 2012 by James*

**CALCULUS HELP PLEASE!!**

Intergral from -2 to 2 (-2 is at the bottom of the integral sign and 2 is at the top) x^-2dx = -x^-1] (the bracket has a 2 at the top and -2 at the bottom) = -(2)^-1-(-(-2)^-1) = (-1/2)-(1/2) = -1 Is this true or false. I think it's false, but can someone explain to me why it'...
*May 11, 2011 by John*

**geometry ( trigonometric ratios)**

a girl who is standing 92 ft away from a building looks up at a angle of 86 degrees at a bird on the top of a building. What is the height, from the ground, to the bird on the top of the building ?
*April 18, 2013 by Nene*

**computers**

Hello, I am doing a presentation on what is a CD-ROM and I need help fishing it. I cannot think of what else to put for my last two slides.
*July 21, 2014 by Jonice*