Thursday

August 25, 2016
Number of results: 67,836

**Physics(Help!!!!)**

A person of mass m2= 85.0 kg is standing on a rung, one third of the way up a ladder of length d= 3.0 m. The mass of the ladder is m1= 15.0 kg, uniformly distributed. The ladder is initially inclined at an angle Î¸= 35.0âˆ˜ with respect to the horizontal. Assume that there is ...
*December 9, 2013 by keitanako*

**Pre-Algebra**

A 9 foot ladder leans against a building at a point 7 feet above the ground. At what height would a 15 foot ladder touch the building if both ladders for the same angle with the ground? Propotion? But I just get a decimal...
*January 5, 2010 by Dean*

**calculus**

an 8ft 2 by 4 is leaning against a 10ft wall. THe lower end of the 2 by 4 is pulled away from the wall at the rate of 1ft/sec. How fast is the top of the 2 by 4 moving toward the ground (a) when it is 5 ft from the ground and (b) when it is 4 ft from the ground?
*October 6, 2010 by Joshie*

**Math HELP!**

A ladder is leaning against a house. The distance between the base of the ladder to the house is 3 feet. The length of the ladder is 10 feet. In feet, how far above the ground does the ladder touch the house? A. 4.2 ft B. 9.5 ft C. 10.4 ft D. 14.1 ft Is the answer B? Thanks
*October 22, 2014 by Anonymous*

**pre algebra**

A ladder is leaning against a house. The distance between the base of the ladder to the house is 3 feet. The length of the ladder is 10 feet. In feet, how far above the ground does the ladder touch the house? 4.2 9.5 10.4 14.1
*October 24, 2014 by Keli*

**Physics**

a baseball is hit at a height h = 1.10 m and then caught at the same height. It travels alongside a wall, moving up past the top of the wall 1.2 s after it is hit and then down past the top of the wall 3.2 s later, at distance D = 53 m farther along the wall. (a) What ...
*September 13, 2010 by Antonio*

**math**

A child’s kite is on top of a straight pine tree. A ladder is placed against the tree and touches the kite. The ladder forms a 45-degree angle with the flat ground. The base of the tree is 9 feet away from the base of the ladder. With only this information, how can you ...
*April 19, 2013 by Tom*

**math**

A child’s kite is on top of a straight pine tree. A ladder is placed against the tree and touches the kite. The ladder forms a 45-degree angle with the flat ground. The base of the tree is 9 feet away from the base of the ladder. With only this information, how can you ...
*April 23, 2013 by Anonymous*

**geometry**

a lader is leaning against a jouse and is forming a 60 degree angle with the ground. if the top of the ladder is 24 feet off of the gound, how long is the ladder? leave your answer in exact form.
*November 6, 2008 by hannah*

**Physics**

In Figure 4-44, a baseball is hit at a height h = 1.10 m and then caught at the same height. It travels alongside a wall, moving up past the top of the wall 1.1 s after it is hit and then down past the top of the wall 4.8 s later, at distance D = 47 m farther along the wall. (...
*January 21, 2011 by Blake*

**Physics**

A group of soldiers hid at the bottom and against the wall of a 100 m. high cliff. Unknown to them, the Evil rebels have positioned a cannon on top of the cliff; 8,000 m. from the edge. If the cannon has a muzzle speed of 320 m/sec, how close to the bottom edge of the cliff ...
*March 1, 2015 by akocciara*

**geometry**

A 25 meter ladder is leaned against a tall building. If the ladder makes a 30 degree angle with the ground, how high up on the building (in meters) does the ladder fall?
*February 24, 2016 by Courtney*

**Geometry**

A ladder leaning against a house makes an angle of 60 degrees with the ground. The foot of the ladder is 7 ft from the house. How long is the ladder?
*February 9, 2014 by Evra*

**Geometry**

A 10 ft. ladder is leaning against a building and makes an angle of 65 degrees with the ground. How high above the ground is the top of the ladder?
*April 19, 2011 by Randi*

**PHYSICS**

A 7 m ladder weighing 250 N is being pushed by force F AT bottom What is the minimum force needed to get the ladder to move? The static coefficient of friction for all contact surfaces is 0.4.
*August 10, 2010 by sushanth*

**algebra 1**

A ladder leaning against a house makes an angle of 60 degress with the ground. The foot of the ladder is 7 feet from the foundation of the house.how long is the ladder? please some sugesstions
*April 23, 2011 by nena*

**Math word problem**

A fire and rescue squads places a 15 ft ladder against a burning building. If he ladder is 9ft from the building how far up will the ladder reach? I got 17.5 ft Is that right?
*February 19, 2013 by Marco*

**Physics Classical Mechanics**

A person of mass m2= 85.0 kg is standing on a rung, one third of the way up a ladder of length d= 3.0 m. The mass of the ladder is m1= 15.0 kg, uniformly distributed. The ladder is initially inclined at an angle θ= 35.0∘ with respect to the horizontal. Assume that ...
*November 26, 2013 by A*

**math**

a man climbing a ladder which is inclined to the wall at an angle of 30 degree. if he ascend at the rate of 2m/s then he approach the wall at the rate of
*August 29, 2014 by suman*

**geometry**

a 30 foot ladder leaning against a vertical wall makes an angle of 81 degrees with the ground how far from the base of the pole is the surveyor?
*May 20, 2014 by taylor*

**Math**

The firemen's ladder is 39 feet long (L). The firemen set the base of the ladder 12 feet away from the building (d). When the firemen lean the ladder against the building, the top of the ladder reaches the third floor window. How high, in feet, is the third floor window from ...
*March 10, 2016 by Destiny*

**physics**

A 4.5 kg can of paint is sitting on top of a 0.8 meter high step ladder. How much work did you do to move the can of paint to the top of the ladder?
*December 15, 2010 by Josue*

**Math**

Use the pythagorean Theorem to solve this problem. A painter places an 11 ft ladder against a house. The base of the ladder is 3 ft from the house. How high on the house does the ladder reach?
*April 28, 2011 by MathIsTheBest*

**Pythagorean Theorem**

A ladder resting against the side of a building reaches 32 ft up the building. If the ladder is 40 ft long, how far from the building is the base of the ladder?
*July 15, 2010 by david*

**Calculus**

A tool shed, 250cm high and 100cm deep, is built agaisnt a wall. Calculate the shortest ladder that can reach from the ground, over the shed, tot he wall behind.
*June 20, 2010 by Adeola*

**gemoetry**

A self-supporting ladder placed so that the angle between the ladder and the ground is 75.5° can be used to test whether the ladder can support a certain load. The diagram represents a ladder placed next to a window that is 20 feet above the ground. What is the length of the ...
*April 9, 2016 by kirk*

**Physics**

In an amusement ride, fun seeking people enter a 7.4 meter diameter cylinder and stand up against the wall. The cylinder spins fast enough so that when the bottom drops down 2 meters, the people remain pinned to the wall. The cylinder continues to rotate for awhile but then ...
*October 20, 2011 by Me*

**math**

A worm is at the bottom of a 12- foot wall. Every day it crawls up 3 feet, but at night it slips down 2 feet. How many days does it take the worm to reach the top of the wall?
*January 20, 2010 by ewi*

**math**

The bottom of a ladder is placed 4 feet away from a house and it reaches a height of 16 feet on the side of the house. What is the slope of the ladder?
*February 4, 2014 by :)*

**Physics **

A trebuchet was a hurling machine built to attack the walls of a castle under siege. A large stone could be hurled against a wall to break apart the wall. The machine was not placed near the wall because then arrows could reach it from the castle wall. Instead, it was ...
*September 25, 2015 by barich*

**math**

A ladder is leaning against the side of a house and forms an angle of 66o with the ground. The foot of the ladder is 11.3 feet from the base of the house. Find the length of the ladder to the nearest foot.
*May 27, 2014 by danielle*

**math 4 grade**

A firefighter stood on the middle rungs of a ladder ,spraying water on a burning house. He then climbed up 6 rungs before the heat of the flames caused him to come down 10 rungs.After some minutes he was able to climb 18 rungs to the very top of ladder .How many rungs did the...
*October 7, 2010 by Thanh*

**Math**

Two ladders are the same distance from the base of a wall. The longer ladder is 15m long and makes an angle of 58 with the ground. if the shorter ladder is 12.6m long, what angle does it make with the ground?
*May 13, 2015 by Emily*

**geometry**

a ladder is placed against the side of a building at an angle of 50 degree. the ladder's base is 10ft away from the base of the building. How long is the ladder?
*February 28, 2012 by james*

**Algebra**

A 10 foot ladder is to be placed against the side of a building. The base of the ladder must be placed at an angle of 72degree with the level ground for a secure footing. Find to the nearest inch, how far of the ladder should be from the side of the building and how far up the...
*February 7, 2012 by Zing*

**Math**

A 21-foot ladder is leaning against a building. The base of the ladder is 7 feet from the base of the building. To the nearest degree, what is the measure of the angle that the ladder makes with the ground? (Hint: Sketch the problem before solving.)
*October 3, 2014 by TeeKay*

**geometry **

thebottom of the ladder is 3 feet from the building. the ladder makes an angle of 75 degree with the ground. how high up on the building does the ladder reach? how long is the ladder?
*October 18, 2012 by donta*

**geometry**

a self supporting ladder placed so that the angle between the ladder and the ground is 75.5" can be used to test whether the ladder can support a certain load. The diagram represents a ladder placed next to a window that is 20feet above the ground. What is the length of the ...
*May 29, 2014 by shan*

**Calculus**

A fence 5 feet tall runs parallel to a tall building at a distance of 7 feet from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building? [Hint: Determine the length of a ladder that touches the ...
*June 22, 2009 by Z32*

**Easy Pre-calculus Questions?**

What is the value of x in the right triangle below? If needed, round your answer to two decimal places. 32 angle, 15 inches. A 10-foot ladder is leaning up against the side of a building so that the top of the ladder reaches the top of the building. If the ladder meets the ...
*June 30, 2011 by kalakalikalakali*

**calculus**

a wall 10 feet high is 8 feet from a house. find the length of the shortest ladder that will reach the house when one end rest on the ground outside the wall.
*February 8, 2012 by marg*

**Trigonometry **

Hi this is a two part question. I got the first part but can't figure out second. Please help! A home is designed to keep sun off outside south wall during summer months and have wall exposed to dun as much as possible during winter months. The highest angle of sun in summer ...
*October 1, 2014 by Cherie*

**calculus**

"How fast is the area of the triangle formed by the ladder, the house, and the ground when the base of the ladder is 7 ft. away from the wall? Given h=24ft. dh/dt=-7/12ft. per sec. b=7 (base) db/dt=2ft. per sec. d/dt[A=1/2bh] How would you derive this with respect to time?
*October 14, 2010 by Guy*

**Math**

Mr.Brown is building a slide for his kids. The ladder is 3 meters tall ad the slide is 5 meters long. What is the distance between the ladder and the bottom of the slide?
*April 22, 2013 by Anna*

**math**

a 15 foot ladder is leaning against a house with the base of the ladder 4 feet from the house. How high up the house does the ladder reach? round to the nearest tenth foot.
*June 11, 2014 by Katie*

**Math**

An extension ladder adjusts in length from 10 ft to 16 ft. Suppose you've leaned your ladder against your house sot that, at its minimum lenght, it touches the base of your first floor window, 9 feet above the ground. Without moving the base, how high will the ladder reach ...
*March 24, 2009 by Suz*

**math,algebra**

Can someone set this up in equations so i can solve them i would greatly appreciate it. THanks. Problem #3 The base of a ladder is 14 feet away from the wall. The top of the ladder is 17 feet from the floor. Find the length of the ladder to the nearest thousandth. Problem #4 A...
*April 17, 2007 by jasmine20*

**math**

A ladder of length 10 m rests with its lower end on a horizontal floor and with a rate of 2m/sec when the lower end is at 8m away from the wall, find: the rate of change of the angle between the ladder and the floor
*October 19, 2015 by ali*

**Physics ~Conservation of Energy~ part 2**

1.) A 500 kg roller coaster is pulled to the top of a hill 45 m high and arrives at the top with a zero speed. a) how much work has done by the vhain to pull the car to the top? b) how much potential energy does it have at the top? c)What is the total energy of the system? d) ...
*January 30, 2013 by Isis*

**Physics**

Draw the figure. You have the following equations that you can write: a) Sum Vertical Forces=0 b) Sum horizontal forces=0. Remember that at the upper part of the ladder, there is a horizontal force (only). c) Sum of moments about any point, I suggest the base of the ladder as...
*May 31, 2007 by bobpursley*

**Math**

A ladder is leaning against the side of a house so that it can reach a window that is 25 feet off the ground. The angle in which is formed between the ladder and the ground is 52 degrees. How far from the base of the house is the base of the ladder? Round the answer to the ...
*December 2, 2014 by Michael*

**Physics**

A rubber ball is thrown against the wall. The ball has a mass of 4 g and strikes the wall perpendicularly with a speed of 12 m/s. The acceleration is constant while the ball is touching the wall. After touching the wall, the center of mass moves .5 cm toward the wall, and back...
*April 12, 2009 by Michael*

**Precalculus **

A 28 foot ladder just reaches the top of a building and forms an angle at 44. 4 degrees with the wall of the building. How many feet is the building tall?
*July 2, 2013 by Jeanette*

**math**

Consider a slide shaped like a right triangle. The base of the slide is 45 feet away from the ladder. The top of the slide is 20 feet high. a) What is the slope of the slide. b) write an equation for the line that the slide would form. c) Lets say you were standing at the ...
*February 19, 2015 by kat*

**math**

Consider a slide shaped like a right triangle. The base of the slide is 45 feet away from the ladder. The top of the slide is 20 feet high. a) What is the slope of the slide. b) write an equation for the line that the slide would form. c) Lets say you were standing at the ...
*February 19, 2015 by kat*

**math**

32foot ladder at a 70degree angle. How high is top of ladder
*June 4, 2016 by Anonymous*

**math**

A firefighter stood on the middle rungs of a ladder ,spraying water on a burning house. He then climbed up 6 rungs before the heat of the flames caused him to come down 10 rungs.After some minutes he was able to climb 18 rungs to the very top of ladder .How many rungs did the ...
*October 6, 2010 by Thanh*

**geometry**

the base of a 34ft ladder is placed 12ft from a building. how high above the ground is the top of the ladder
*March 19, 2012 by annonimus*

**Trig**

A 24-foot ladder is placed against a building. The building is perpendicular to the level ground so that the base of the ladder is 11 feet away from the base of the building. How far up the building, in feet, does the ladder reach? Round to nearest hundredth.
*May 19, 2014 by Joseph*

**Calculus**

A 15.5 foot ladder leaning up against the building .the base is 8.2 feet away from the building .how far up does the ladder reach against the building.
*March 21, 2016 by Vickie*

**Calculus**

A ladder 15 feet long is leaning against a building so that end X is on level ground and end Y is on the wall. Point 0 is where the wall meets the ground. X is moving away from the building at a constant rate of 1/2 foot per second. (a.) Find the rate in feet per second at ...
*February 5, 2012 by Amy*

**differential**

A ladder of length 10 m rests with its lower end on a horizontal floor and with a rate of 2m/sec when the lower end is at 8m away from the wall, find: 1) the rate of sliding of the upper end. 2) the rate of change of the angle between the ladder and the floor
*October 19, 2015 by khaled*

**geometry**

how many feet up the wall of the building is the other end of the ladder?
*April 14, 2011 by cashawn*

**maths**

If a 10m ladder stands 1.25m from a wall, what is it's reach?
*August 25, 2014 by Abe*

**algebra**

A board is leaning against a building so that the top of the board reaches a height of 18 feet. The bottom fo the board is on the groung 4 feet away from the wall. What is the slope of the board as a positive number?
*September 30, 2012 by Kaitlyn*

**geometry**

You are buying a ladder for your 30-foot-tall house. for safety, you would like to ensure that the base of the ladder be placed at least 8 foot from the base of the house. What is the shorest ladder you can buy in order to be able to reach to top of your house?
*March 3, 2012 by kim*

**math**

an extension ladder adjusts in length from 10 feet to 16 feet. suppose you've leaned your ladder against your house so that, at its minimum length, it touches the base of your first floor window, 9 feet above the ground. without moving the base, how high will the ladder reach ...
*September 26, 2009 by Anonymous*

**physics**

A 45 kg skater is standing still in front of a wall. By pushing against the wall she propels herself backward with a velocity of -1.0 m/s. Her hands are in contact with the wall for 0.80 s. Ignore friction and wind resistance. Find the magnitude and direction of the average ...
*October 14, 2008 by kb*

**Physics**

21) A 46 kg skater is standing still in front of a wall. By pushing against the wall she propels herself backward with a velocity of – 1.2 m /s. Her hands are in contact with the wall for 0.8 s. Ignore friction and wind resistance • Find the magnitude and direction of the ...
*December 4, 2012 by Bill*

**Pre-Calculus Algebra**

A building is 2 ft from a 9-ft fence that surrounds the property. Worker wants to wash window in the building 13 ft from the ground. He wants to place ladder over fence so it rests against the building. He decides he should place the ladder 8 ft from the fence for stability. ...
*October 24, 2010 by anonymous*

**11th grade**

A 40-kg skater is standing still in front of a wall. By pushing against the wall she propels herself backward with a velocity of -1.8 m/s. Her hands are in contact with the wall for 0.80 s. Ignore friction and wind resistance. Find the magnitude and direction of the average ...
*November 16, 2010 by fgh*

**trigonometry**

A wall is 10 feet tall and is 15 feet from a house. A window in the house is 30.5ft above the ground. A tire escape slide attaches to the bottom of the window and to the top of the wall opposite the window. How long a slide must be purchased?
*January 6, 2013 by Denisse*

**geometry**

To the nearest tenth of a foot, what distance (x) from the building should Tim place the 16 ft ladder so that the top of the ladder will be 12 feet above the ground.
*February 27, 2011 by Kierra*

**physics**

Romeo is trying to climb a ladder placed 3 meters away from a 4 meter high tower where Juliet is stuck. He weighs 110 kg, the ladder weighs 25 kg. Can Romeo climb to the top of the ladder? If so, can he bring Juliet back down with him?
*April 3, 2013 by Suzie*

**Algebra**

A building is 2ft from a 9ft fence that surrounds the property.A worker wants to wash a window in the building 13 ft from the ground. He plans to place a ladder over the fence so it rests against the building.He decides he should place the ladder 7ft from the fence for ...
*March 20, 2016 by Anonymous*

**math**

1. nathan is climbing 25ft ladder oeaning against a tree. the foot of the ladder is 15ft from the base of the tree, what is the measure of the angle the ladder makes with ground. 2.erin is flying an plan at 3000 ft high, she sees her house at 32 degrees angle of depression ...
*May 20, 2013 by rhita*

**physics**

For the step ladder shown in the Figure, sides and are each ft long and hinged at . is a -ft long tie rod, installed halfway up the ladder. A -kg man climbs ft along the ladder. Assuming that the floor is frictionless and neglecting the weight of the ladder, find the tension ...
*April 10, 2008 by lizzy*

**Physics**

A man who is 6 ft tall is standing in front of a plane mirror that is 2 ft in length. If the mirror is placed lengthwise with its bottom edge 4 ft above the floor on a wall that is 5 ft away, how much of his image (i.e. what length of himself) can the man see? (Assume that his...
*May 30, 2012 by Bob*

**Physics**

A man who is 6 ft tall is standing in front of a plane mirror that is 2 ft in length. If the mirror is placed lengthwise with its bottom edge 4 ft above the floor on a wall that is 5 ft away, how much of his image (i.e. what length of himself) can the man see? (Assume that his...
*May 30, 2012 by John*

**Physics**

A man who is 6 ft tall is standing in front of a plane mirror that is 2 ft in length. If the mirror is placed lengthwise with its bottom edge 4 ft above the floor on a wall that is 5 ft away, how much of his image (i.e. what length of himself) can the man see? (Assume that his...
*May 30, 2012 by Bob*

**Physics**

A man who is 6 ft tall is standing in front of a plane mirror that is 2 ft in length. If the mirror is placed lengthwise with its bottom edge 4 ft above the floor on a wall that is 5 ft away, how much of his image (i.e. what length of himself) can the man see? (Assume that his...
*May 30, 2012 by Bob*

**Physics**

A man who is 6 ft tall is standing in front of a plane mirror that is 2 ft in length. If the mirror is placed lengthwise with its bottom edge 4 ft above the floor on a wall that is 5 ft away, how much of his image (i.e. what length of himself) can the man see? (Assume that his...
*May 31, 2012 by Bob*

**geometry**

a semicircular glass-top table is placed against a wall. if the straight edge of the table touches the wall at a span of 2 meters, what is the area of top glass?
*February 9, 2012 by euvher*

**Algebra**

A building is 2ft from a 9ft fence that surrounds the property. A worker wants to wash a window in the building 13ft from the ground. he plans to place a ladder over the fence so it rests against the building. he decides he should place the ladder 8ft from the fence for ...
*September 27, 2014 by Amber*

**physics**

In a church choir loft, two parallel walls are 5.70 m apart. The singers stand against the north wall. The organist faces the south wall, sitting 0.900 m away from it. So that she can see the choir, a flat mirror 0.600 m wide is mounted on the south wall, straight in front of ...
*November 30, 2010 by Jessica*

**calculus**

A wall 10 feet high is 8 feet away from a house. Find the length of the shortest ladder that will reach the house when one end rests on the ground outside the wall. So in here. I did the similar triangle property. so i got y=10(x+8)/x . And i substituted it in the PYTHAGOREAN ...
*August 28, 2014 by Jhun Sanchez*

**math**

how far from the base of a 10ft ladder be placed so that it reaches 8ft up the wall
*October 21, 2010 by latifah*

**math**

if a 30 ft ladder makes a 65 degree angle with the ground, how many fee up the wall will it reach
*April 8, 2014 by kathy*

**math**

A building is 17 ft high, what is the lenght the ladder must be to extend 3 ft higher than wall
*July 13, 2014 by courtney*

**Physics**

A 48.8-kg skater is standing at rest in front of a wall. By pushing against the wall she propels herself backward with a velocity of -1.88 m/s. Her hands are in contact with the wall for 0.763 s. Ignore friction and wind resistance. Find the average force she exerts on the ...
*January 2, 2013 by Tim*

**Math**

a 16-foot ladder is leaning against a house and is 2 feet away from the foundation of the house. How high up will the ladder reach?
*February 20, 2014 by Abby*

**poetry**

where there's a wall there's a way around, over, or through there's a gate maybe a ladder a door a sentinel who sometimes sleeps there are secret passwords you can overhear there are methods of torture for extracting clues to maps of underground passageways there are zepplins ...
*October 22, 2010 by Joe*

**year 8 math**

a snail is at the bottom of an empty trough with walls 40cm high. If the snail manages to move 4cm up a wall each day, but slips 3cm each night, how long does it take the snail to reach the top of the trough? it then continues over the wall and makes it's way down to the ...
*March 7, 2011 by genevieve*

**math**

thomas wants to build a seven layer brick wall. the bottom layer has 20 bricks and each layer of the wall that goes up has two less bricks than the layer below it. if each brick costs .50 cents to cement how money will Thomas spend on the wall ?
*April 6, 2010 by Alexander*

**physics**

If the coefficient of static friction is 0.350, and the same ladder makes a 64.0° angle with respect to the horizontal, how far along the length of the ladder can a 71.9-kg painter climb before the ladder begins to slip? The same ladder is 46.7 Newtons in weight and 10.4 ...
*October 23, 2010 by heather*

**allgebra**

A building is 1ft from an 11ft fence that surrounds the property. A worker wants to wash a awindow in the building 14ft from the ground. he plans to place the ladder over the fence so it rests against the building. He decides he should decides to place the ladder 10ft from the...
*February 7, 2012 by Kenna Mask*

**math**

How long is a ladder whose base is 3 ft from a wall and makes an 80° angle with the ground? Question 15 options: 10 ft 12 ft 14 ft 17 ft
*January 22, 2014 by josh*

**Physics**

A uniform plank of length L leans against a vertical wall, its head a distance h above the horizontal ground. If we let go of the plank from rest, how far above the ground is the head of the plank the moment it loses contact with the wall?
*February 11, 2011 by OPTIPLEX*

**College Physics**

A uniform plank of length L leans against a vertical wall, its head a distance h above the horizontal ground. If we let go of the plank from rest, how far above the ground is the head of the plank the moment it loses contact with the wall?
*February 10, 2011 by Grimider*

**algebra**

If John stands near a 30 foot tall tree and leans a 50 foot tall ladder against the tree that reaches to the top of tree, then how far is John standing away from the tree? (Round to the nearest hundredth)
*June 18, 2014 by Anonymous*