Tuesday
July 29, 2014

Search: gravel

Number of results: 83

science- hydroponics
the advantage of gravel is that it makes it better to grow plants that you eat? the disadvantage of gravel is that gravel can not hold the plant?
June 3, 2012 by Celest

physics
Derek the drunk driver drives his car off the road, onto a gravel strip next to the road. Derek does not have anti-lock brakes, so his wheels lock when he enters the gravel area, and the car slides to a halt. Derek's car is traveling at a speed of 20m/s when it enters the ...
December 15, 2010 by aok

maths
a rectangular plot of grass 25m by 22m has a gravel walk 1.5m wide all around it on the outside.What is the area of the gravel walk?
February 9, 2013 by dheemanth

geometry
A pile of gravel is conical in shape. If the diameter is approximately 6.8m and the height is 2.8m, what is the volume of gravel in the pile.
February 28, 2012 by Montel

Math 20-3
A pile of gravel is conical in shape. If the diameter is approximately 6.8m and the height is 2.8m, what is the volume of gravel in the pile?
March 28, 2014 by canadiangoose

Math
A pile of gravel is conical in shape. If the diameter is approximately 6.8m and the height is 2.8m, what is the volume of gravel in the pile?
March 28, 2014 by Jay

algebra
in a mixture if concrete, there are four lb of cement mix for each pound of gravel. if the the mixture contains a total of 195 lb of these two ingredients, how many pounds of gravel are there?
July 11, 2010 by Kristina

Physics
A 8800 kg railroad car is rolling at 2.4 m/s when a 3100 kg load of gravel is suddenly dropped in. What is the car's speed (in m/s) just after the gravel is loaded? how do I relate these, I am confused.
October 26, 2011 by ...

math
Lydia Rise us building a terraium and needs to buy two sizes of gravel and soil to go in the bottom. The terraiun is 24 in longs, 14 in wide, and 15 in tall. A.The bottom layer is pea gravel and needs to be 2 inches deep. How many cubic inches will she need? B. The second ...
March 11, 2010 by Hobo

physics
Truck brakes can fail if they get too hot. In some mountainous areas, ramps of loose gravel are constructed to stop runaway trucks that have lost their brakes. The combination of a slight upward slope and a large coefficient of friction in the gravel brings the truck safely to...
October 31, 2009 by amy

Earth Science
Which particles can wind move most easily? Sand, silt, pebbles, or gravel? I put sand but my teacher marked it wrong. Would it be silt? Pebbles and gravel are pretty heavy.
December 5, 2007 by Lisa

math
i the conveyor belt takes 54 seconds to move gravel from the bottom of the conveyor belt to the tope at a rate of 3 feet per second, how high does the conveyor belt lift the gravel?
May 23, 2012 by amanda

Math
a person cleared a rectangular plot of land and covered it with gravel. then he got 9 square wooden sections of side lengths: 2,5,7,9,16,25,28,33 and 36. by placing the squares on the gravel with no two overlaping, the person built a patio which exactly covered the graveled ...
December 20, 2010 by John

Math
a person cleared a rectangular plot of land and covered it with gravel. then he got 9 square wooden sections of side lengths: 2,5,7,9,16,25,33 and 36. by placing the squares on the gravel with no two overlaping, the person built a patio which exactly covered the graveled ...
December 16, 2010 by Jimmy

Math
a person cleared a rectangular plot of land and covered it with gravel. then he got 9 square wooden sections of side lengths: 2,5,7,9,16,25,33 and 36. by placing the squares on the gravel with no two overlaping, the person built a patio which exactly covered the graveled ...
December 17, 2010 by Gorege

Math
a person cleared a rectangular plot of land and covered it with gravel. then he got 8 square wooden sections of side lengths: 2,5,7,9,16,25,33 and 36. by placing the squares on the gravel with no two overlaping, the person built a patio which exactly covered the graveled ...
December 18, 2010 by john

Algebra
A batch of concrete is made by mixing 1 part cement, 2.5 parts sand, and 3.5 parts gravel. How many pounds of sand and gravel are needed to make 300 pounds of cement?
September 22, 2010 by Kimmie

math
a worker in a city park needs to cover a circular path around the outside of a flower garden with gravel. the radius of the garden is 15 feet and the path surrounding the garden is 6 feet wide. how many square feet need to be covered with gravel? explain how you arrived at ...
March 15, 2010 by Katherine

math
a worker in a city parks need to cover a circular path around the outside of a flower garden with gravel. the radius of the garden is 15 feet and the path surrounding the garden is 6 feet wide. how many square feet need to be covered with gravel? expalin how you arrived at ...
March 17, 2010 by Katherine

science-hydrophonics
the advantage of gravel is : the disadvantage of gravel: the advantage of sand the disadvantage of sand
June 3, 2012 by Celest

Physics
A truck of mass 9212 kg moving at a speed of 73.2 mph has lost its brakes. Fortunately, the driver finds a runaway lane, a gravel-covered incline that uses friction to stop a truck in such a situation; see the figure. In this case, the incline makes an angle of θ = 39.65...
February 19, 2011 by Em

algebra
elmer burns works for a ready-mix concrete cmpany. elmer receives an order for 3.5 cubic yards of concrete. this mixture of concrete contains sand, cement, gravel, and water, for each pound of water, there are 5 lb of sand, 2 lb of cement, and 6 lb of gravel. find (a) the ...
September 13, 2009 by Anonymous

Algebra 1
You are making up your own mix of concrete to patch a set of stairs. In order to have the proper mix, you need to mix 1 part of Portland cement with 2 parts of sand and 3 parts of gravel. A. How many total parts are in one batch of concrete? B. You make a mix with 4 parts of ...
October 5, 2013 by KATIE

fish tank;; deals with volume. :]
A cylinder shaped fish talk is 40cm high and has a radius of 12cm. The tank with be layed with a decorative gravel on the bottom. The blue layer will be 2 cm high. The yellow layer will be 3 cm high. And the green layter will be 2cm high. [assume water won't go through the ...
October 28, 2007 by blah. volume...

earth
what is "lithified gravel"?
December 9, 2008 by megan

science
what is gravel soil
September 10, 2009 by smart

science
which is soil better for wind erosion? gravel or humus
September 8, 2009 by casey

calculus
this is a optimization problem A construction company has been offered a contract for $7.8 million to construct and operate a trucking route for five years to transport ore from a mine site to a smelter. The smelter is located on a major highway, and the mine is 3 km into a ...
July 25, 2011 by robert

physics
why are you more likely to have an accident on your bicycle if you are riding it on a gravel or wet pathway?how do i explain this using newton's law(s)? thanks consider newtons first law. Then, consider friction on the tire on gravel, wet vs dry pavement. isn't it newton's 3rd...
June 29, 2007 by Emma

science
would a screen be useful for separating a mixture of gravel and diatomaceous-earth powder?
March 22, 2011 by ralph

engineering
100 lb of loose gravel can fill a 1-ft^3 box. Its specific gravity is 2.68. What is the dry rodded weight?
February 5, 2011 by Jazmin

science
which physics principles are employed in stopping a runaway truck in a gravel and sand ramp at the bottom of a mountain?
May 11, 2008 by sam

Science
How is it possible that the gravel, for example, in a sedimentary rock consists of pieces of both igneous and metamorphic rocks?
September 25, 2011 by Lola

psychology
If the concept is truck, the prototype might be: A. a Ford pick up. B. bulldozer. C. gravel eighteen wheeler. D. personnel carrier. I think it could be B or D
August 20, 2013 by nana

ENGINEERING
100 lb of loose gravel can fill a 1-ft^3 box. Its specific gravity is 2.68. What is the dry rodded weight? Find the volume of voids in the preceding problem.
February 10, 2012 by GSU

science
which is bettter for wind erosion? gravel soil or sandy soil.
September 8, 2009 by boby

Earth Science
Near shore, larger sand and gravel particles are moved along the ocean bottom by ____. a. deposition b. turbulence c. spits d. density currents
October 18, 2011 by Leigh

GED-Word Problems
How many cubic feet of gravel will be needed to fill a circular area 14 feet across and 3 inches deep?
May 13, 2012 by kayla

algebra
In a mixture of concrete, there are four lb of cement mix for each pound of gravel. If the mixture contains a total of 185 lb of these two ingredients, how many pounds of grave are there?
November 12, 2009 by Sarah

maths
A rectangular grassyplot is 112m long and 78m broad. It has a gravel path 2.5m wide all around it on the inside. Find the area of path and the cost of constructing it at the rate of 1.80 per sq. m .
December 28, 2012 by Anonymous

Math
If a mixture of 24 lb. of cement, 48 lb. of sand, and 63 lb. of gravel is needed to make 1 cubic foot of concrete, how many pounds of sand are needed to pour a pool deck of 156 cubic feet?
April 30, 2014 by Rhett cowley

Math
If a mixture of 24 lb. of cement, 48 lb. of sand, and 63 lb. of gravel is needed to make 1 cubic foot of concrete, how many pounds of sand are needed to pour a pool deck of 156 cubic feet? _______pounds
June 14, 2012 by Leo

Physics
A truck is moving 40 m/s when it encounters a ramp inclined by 30% above the horizontal. Gravel provides a frictional force to slow the truck and has a coefficient of friction(.5). How far along the ramp would the truck travel before coming to a stop?
December 9, 2012 by Shelby

Calc
Gravel is being dumped from a conveyor belt at a rate of 10 ft^3/min. It forms a pile in the shape of a right circular cone whose base diameter and height are always the same. How fast is the height of the pile increasing when the pile is 23 feet high?
October 28, 2010 by Pierre

Math
Mr.Algieri Needs 4 1/2 Yds Of Dirt For A Planting Job. The Gravel Yard Sells A Yard Of Dirt For $ 27.95. How Much Will It Cost Mf. Algieri For The Dirt? If Mr. Algieri Has $ 125.00 To Pay For The Materials, Does He Have Enough Money?
April 4, 2013 by Zhanise

physics
An open train car, with a mass of 2070 kg, coasts along a horizontal track at the speed 2.31 m/s. The car passes under a loading chute and, as it does so, gravel falls vertically into it for 3.25 s at the rate of 491 kg/s. What is the car's speed after the loading is completed?
November 19, 2012 by Alex

statistics
Weights of a certain model of fully loades gravel trucks follow a normal distrbution with mean = 6.4 tons and standard deviation = 0.3 ton. Waht is the probability that a fully loaded truck of this model is a. less than 6 tons? b. more that 7 tons? c. between 6 and 7 tons?
June 28, 2011 by Harley

calc
Gravel is being dumped from a conveyor belt at a rate of 30 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always the same. How fast is the height of the pile increasing when the pile is 18 feet high?
November 26, 2011 by crystal

Physics
An open train car, with a mass of 2150 kg, coasts along a horizontal track at the speed 2.29 m/s. The car passes under a loading chute and, as it does so, gravel falls vertically into it for 2.67 s at the rate of 441 kg/s. What is the car's speed after the loading is ...
November 19, 2012 by Kyle

calculus
Gravel is being dumped from a conveyor belt at a rate of 10 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always equal to each other. How fast is the height of the pile increasing when the pile is 20 feet high?
October 29, 2009 by Ash

calculus
Gravel is being dumped from a conveyor belt at a rate of 30 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always equal to each other. How fast is the height of the pile increasing when the pile is 14 feet high?
October 18, 2010 by jon

calculus
Gravel is being dumped from a conveyor belt at a rate of 30 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always equal to each other. How fast is the height of the pile increasing when the pile is 14 feet high?
October 18, 2010 by jon

Please help Math
Gravel is being dumped from a conveyor belt at a rate of 20 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always equal to each other. How fast is the height of the pile increasing when the pile is 23 feet high?
March 15, 2009 by Roy

calculus
please help if you can At a sand & gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. The diameter of the base of the cone is approximately three times the altitude. At what rate is the height of the pile changing when ...
October 14, 2010 by kim

calculus word problem
a conveyor belt pours gravel into a pile at a rate of 20 lbs per minue. the pile is shaped like an upside-down cone. the proportions of the cone are such that when the pile is complete, the diameter of the base is 6 ft and the height is 10 feet. how fast is the height of the ...
October 21, 2010 by Anonymous

math
i have a 36 in. wide by 18 in. length by 20 in high rectangular aquarium that needs to be filled. i have a 12 in high cylindrical bucket with a 12 in diameter to fill the tank. if the aquarium contains 3 in of gravel and the bucket is to be filled to a depth of 11 in, how many...
February 20, 2012 by mikey

PreAlgebra
A circular pond 20 m in diameter is surrounded by a gravel path 5 m wide. The path is to be replaced by a brick walk costing $30 per square meter. How much will the walk cost? i need to teach this to my brother, but i'm stuck on it myself. please show me how this would be ...
May 8, 2009 by y912f

Math
Gravel is being dumped from a conveyor belt at a rate of 20 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always equal. How fast is the height of the pile increasing when the pile is 11 feet high? Recall that ...
October 15, 2009 by Salman

calculus
Gravel is being dumped from a conveyor belt at a rate of 50 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always the same. How fast is the height of the pile increasing when the pile is 24 feet high? Recall that...
May 14, 2012 by remy

Calculus
Gravel is being dumped from a conveyor belt at a rate of 10 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always equal. How fast is the height of the pile increasing when the pile is 18 feet high? (Recall that ...
October 9, 2013 by Nathan

calculus
Gravel is being dumped from a conveyor belt at a rate of 50 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always equal to each other. How fast is the height of the pile increasing when the pile is 12 feet high? ...
October 26, 2009 by Leonardo

calculus
Gravel is being dumped from a conveyor belt at a rate of cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always equal to each other. How fast is the height of the pile increasing when the pile is feet high? Hint: ...
November 4, 2012 by Anonymous

Calculus
Gravel is being dumped from a conveyor belt at a rate of 50 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always equal to each other. How fast is the height of the pile increasing when the pile is 14 feet high...
October 26, 2010 by Carl

Calculus Please help!
Gravel is being dumped from a conveyor belt at a rate of 30 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always the same. How fast is the height of the pile increasing when the pile is 24 feet high? Recall that...
February 28, 2014 by ALI

SCIENCE
Some student made a terratium out ot the bottom of 2-liter soda bottle.They placeed a layer of gravel on the botton of the bottom of the and the added soil.they sprinkled 1/2 teaspoon of grass seed on top of the soil and added two small plants.Finally they waterd the plant and...
September 10, 2009 by PRECILIA

Calculus
Gravel is being dumped from a conveyor belt at a rate of 10 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always equal. How fast is the height of the pile increasing when the pile is 16 feet high? Recall that ...
July 5, 2013 by Robin

Calculus (can someone please verify this?)
Gravel is being dumped from a conveyor belt at a rate of 30 ft^3/min. It forms a pile in the shape of a right circular cone whose base diameter and height are always the same. How fast is the height of the pile increasing when the pile is 19 feet high? Vol = (1/3)pi (h^2/4)(h...
April 12, 2011 by Cecille

Calculus (Math 2A)
Gravel is being dumped from a conveyor belt at a rate of 20 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always the same. How fast is the height of the pile increasing when the pile is 19 feet high? Recall ...
February 19, 2012 by What is wrong with it?

math
Gravel is being dumped from a conveyor belt at a rate of 40 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always the same. How fast is the height of the pile increasing when the pile is 22 feet high? Here are ...
February 27, 2013 by jeremy

science
1. Why do scientists use models of natural systems? (1 point) Scientists use models of natural systems because these systems are often too large, too small, or too complex to study directly. Scientists use models of natural systems because they like to use art in science. ...
October 30, 2013 by anonymous

Science
1. Why do scientists use models of natural systems? (1 point) Scientists use models of natural systems because these systems are often too large, too small, or too complex to study directly. Scientists use models of natural systems because they like to use art in science. ...
October 31, 2013 by thewhat

science
1. Why do scientists use models of natural systems? (1 point) Scientists use models of natural systems because these systems are often too large, too small, or too complex to study directly. Scientists use models of natural systems because they like to use art in science. ...
November 1, 2013 by anonymous

Math
A certain juice must be mixed at a ratio of 2:60 (2parts powder 60 parts juice). A company need a total of 3 and 1/2 gallons of mixture. How many ounce of each should be added? One more qusetion..... A certain mix of sand is composed of 95 lb (1 sack) of glass, 51 lb of water...
August 12, 2005 by Kiwi

Science
1. Why do scientists use models of natural systems? (1 point) Scientists use models of natural systems because these systems are often too large, too small, or too complex to study directly. Scientists use models of natural systems because they like to use art in science. ...
October 30, 2013 by anonymous

science
Listed below are six mixtures. Identify physical properties of the components that allow you to separate them. Then, explain the method you would use to separate the components. Mixture 1: Salt dissolved in water Physical Properties: Density Method of Separation: Use a spoon ...
October 24, 2011 by Hope

Proofread
hi can you profread this for me? None of them were looking forward to the task ahead. First, Lori distributed the shovels; one to each person. The shovels were heavy, long-handled brutes that promised to feel like iron weights before the work was half over. Next, Lori paced ...
September 20, 2006 by jay!

Multiplying Binomials
You are planning a rectangular garden. Its length is twice its width. You want a walkway 2 ft wide around the garden. a. Write an expression for the area of the garden and walk. b. Write an expression for the area of the walk only. c. You have enough gravel to cover 76 square ...
January 14, 2007 by Emily

Environmental Science
#33. In two or three well-developed paragraphs, explain how water is treated so that it can be used for safe drinking water. Include definitions of the terms potable and pathogens. my answer: There are many steps to how water is treated so that it can be potable, or used for ...
February 23, 2010 by y912f

Environmental Science
#33. In two or three well-developed paragraphs, explain how water is treated so that it can be used for safe drinking water. Include definitions of the terms potable and pathogens. my answer: There are many steps to how water is treated so that it can be potable, or used for ...
February 23, 2010 by y912f

English
I am working on a descriptive paragraph about a time when I was sick. It's not a whole story. Just a paragraph on how you felt at the starting. I remember getting sick somwhere at the end of Feb. I remember catching the stomach flu~ vomiting; Friday night. My paragraph is down...
March 23, 2010 by Sara

lit( essay)
Please read my discriptive essay, and make any changes! My face is burning from the particles of the gravel penetrating through my skin. As I squirm through my thin cardboard box trying to find my body, I can only hear the churning of my stomach. I try to open my eyes, but I ...
January 28, 2008 by Kim

psychology
Time Remaining: 1. If the concept is truck, the prototype might be: (Points: 5) a Ford pick up. bulldozer. gravel eighteen wheeler. personnel carrier. 2. If the prototype is block or ball, the concept is: (Points: 5) construction. toy. child. play. 3. All major cities have a ...
November 2, 2011 by tj

PLEASE SOLVE MY RIDDLE
MY RIDDLE IS MIDDLE OF THE JISKHA HOMEWORK HELP FORUM PAGE. I POSTED TODAY BUT NOBODY SOLVED MY RIDDLE. MY RIDDLE IS AFTER THE PERSON MADHURI POSTED "ANYBODY IN THE WEBSITE" MY IS: NAME:SANJANA SUBJECT:RIDDLE PLEASE SOLVE MY RIDDLE! THANK YOU! Riddles should be posted in the ...
December 24, 2006 by SANJANA

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