Monday

March 30, 2015

March 30, 2015

Number of results: 21,614

**physics**

why does an ideal fluid move faster through a pipe with decreasing diameter? a. the pressure within the fluid increases b. the pressure within the fluid decreases c. the pipe exerts more pressure on the fluid d. the fluid moves downhill C? the pressure in a fluid is related to...
*February 18, 2009 by y912f to bobpursley*

**Physics**

A 300L water tank is 2.8m above the ground and constantly refills itself to always have 300L present. A pipe with a diameter of 12.5mm runs from it to the shower. Due to gravity, work out how many litres per minute are produced?
*February 5, 2012 by Em*

**math**

You are asked to design a piping system that will connect a drilling rig 12 miles offshore to refinery on shore 20 miles down the coast. What values of x and y will give the least expensive connection if underwater pipe (x-section) costs $50.000 per mile and land-based pipe (y...
*August 11, 2012 by ibranian*

**Algebra**

b)The water line is given by the equation y=-2/3x-12 Suppose you want to put a pink flamingo lawn ornament in your backyard, but you want to avoid placing it directly over the water line, in case you need to excavate the line for repairs in the future. Could you place it at ...
*June 26, 2008 by Mandy*

**physics**

Water fills and flows through an expanding pipeline that is inclined upwards. On the centreline of the pipe, Point 1 is 0.3 m below point 2. The velocities are V1 = 3.4 m/s and V2 = 1.7 m/s. The pressure at point 1 is 9300 N/m 2 . What is the pressure at point 2 assuming no ...
*May 8, 2012 by Aisling*

**probability April-004**

In a random sample of 95 sections of pipe in a chemical plant, 16 showed signs of serious corrosion. Construct a 98% confidence interval for the true proportion of pipe sections showing signs of serious corrosion, using the large sample confidence interval formula.
*April 18, 2013 by probability*

**physics**

1. Air flowing through a vent pipe of cross-sectional area 21[m^2] is traveling 0.89[ms^-1]. What is the flowrate? [18.7 m3s-1] Answer with three significant figures (don't forget to round!) or N/A if there is not enough information to answer the question. 2. Before the vent ...
*March 22, 2013 by Sean*

**Physics**

I have to plot a graph of Pressure gradient vs average velocity (water in a pipe, I have all the data). I plan to put the average velocity on the x axis, since I could control that better in an experiment. Do you agree/ Thanks. Charlie
*August 10, 2009 by Charlie*

**Math**

It takes pipe A 14 days to fill the fish pond. It takes pipe B 18 days to fill the same pond. Find out how pond it takes both pipes working together to fill the pond
*May 20, 2013 by Erika*

**Math**

A customer wants to make a tee-pee in his backyard for his children. He plans to use lengths of PVC plumbing pipe for the supports on the tee-pee, and he wants the teepee to be 12 feet across and 8 feet tall. The customer needs to figure out the length of the sides of the ...
*July 21, 2010 by Lynn*

**English**

1. Join one section of the pipe to the next. 2. Join one section of pipe to the next. (Do we have to use 'the' or not? Which one is correct?)
*April 24, 2010 by rfvv*

**Physics**

Alcohol flows smoothly through a horizontal pipe that tapers in cross-sectional area from A1 = 41.9 cm2 to A2= A1/3. The pressure difference Δp between the wide and the narrow sections of the pipe is 11.1 kPa. What is the volume flow rate ΔV/Δt of the alcohol? ...
*December 1, 2009 by Sammy*

**ap calc**

An oil well at O is in the ocean, 8 miles from T on a straight shoreline. The oil has to go from O to R. the cost of laying pipe per mile is $90,000 underwater and $54,000 on land. the cheapest method of placing the pipe is to lay OP underwater and PR on land, where P is some ...
*November 18, 2014 by Anonymous*

**Engineering**

Your green house irrigation sytem is plumbed with 3/4" pvc pipe from which 1/2" branch lines are routed to each row of plants. if the city supplies water that flows at 3ft/sec what is the velocity of the water at plants level? WEhat is the flow rate in gallons per min at plant...
*September 10, 2006 by Matt*

**physics**

Lubricating oil, with a relative density of 0.79, flows around a 90¨¬ bend. The pipe diameter is 0.45m, and the oil has a pressure head of 7m and the flow is 1.7m3/s. Find the force exerted by the oil on the bend. Oil density = 0.79 X 103 Volumetric mass flow rate = 1.7 m3/s ...
*April 2, 2009 by Michel*

**physics**

a homeowner wishes to drain her swimming pool by siphoning the water, whose depth is h, into a nearby gully a distance H below it,where H is much larger than h.she uses pipe of cross-sectional area a, and the pool has surface area A.how long does it take to empty the pool if h...
*June 8, 2014 by khomotjo*

**Math (Re-post)**

A customer wants to make a tee-pee in his backyard for his children. He plans to use lengths of PVC plumbing pipe for the supports on the tee-pee, and he wants the teepee to be 12 feet across and 8 feet tall. The customer needs to figure out the length of the sides of the ...
*July 21, 2010 by Lynn*

**math**

a bathtub can be filled by the hot and cold water pipes in four minutes and, when full, can be emptied by the waste pipe in five minutes. If it is half full and all three pipes are set running, when will the tub be filled?
*October 25, 2007 by Charlie*

**Math**

a bathtub can be filled by the hot and cold water pipes in four minutes and, when full, can be emptied by the waste pipe in five minutes. If it is half full and all three pipes are set running, when will the tub be filled?
*March 4, 2009 by Evan*

**Fluid Mechanics**

the problem says: Water flows from a bathtub through a 2.5 diameter plastic pipe to a large air-filled drain...etc Here, i need to know what is the pressure at the air-filled drain? Is it equal to the atmospheric pressure? Thanks in advance.
*December 21, 2014 by Mohamed*

**math**

An inlet pipe can fill an empty pool in 3 hours. Another pipe can fill the same pool in 4 hours. How long will it take to fill the pool if both pipes are on? time=1pool/(1pool/3 + 1pool/4) Notice the rates add..1pool/4hrs + 1pool/3hrs. time=12/7 hrs so would this be 7 hrs or ...
*September 27, 2008 by jennifer*

**Statistics**

A manufacturer has designed a process to produce pipes that are 10 feet long. The distribution of the pipe length, however, is actually Uniform on the interval 10 feet to 10.85 feet. Assume that the lengths of individual pipes produced by the process are independent. Let X and...
*March 5, 2011 by Hannah*

**Physics**

The water level in a vertical glass tube 1.40 m long can be adjusted to any position in the tube. A tuning fork vibrating at 440 Hz is held just over the open top end of the tube, to set up a standing wave of sound in the air-filled top portion of the tube. (That air-filled ...
*May 25, 2011 by Emma*

**Chemistry**

Products used to remove clogs in drains contain strong bases, such as sodium hydroxide (NaOH). If drain cleaner containing 10.0g NaOH's is added to a clogged drain pipe filled with 2.5L water how many moles of NaOH were added? It'd mean a lot if someone could explain this to ...
*April 7, 2013 by Allyson*

**Physics**

Water flowing through a 2.8 cm-diameter pipe can fill a 200 L bathtub in 5.8 min. Flow rate Q = volume/time = speed * cross section area Q=200/5.8=speed*.028....i get 1231.52 or Q=(200/348)=speed*.028...i get 20.52 both are wrong so what do i do?
*November 16, 2009 by ana*

**chemistry**

Tongue touches a pipe . Calculate final temperature of the tongue. 500 g of aluminum. ambient temp is -5 degrees Celsius. tongue is 100 g. heat capacity is same as pure water. assume heat capacity of aluminum is 24 J/molK.
*February 1, 2009 by kat*

**physics- electrodynamics**

can someone walk me through this --- you'd be a lifesaver a rectangular pipe running parallel to the z axis(-‡ to +‡) has 3 grounded metal sides at y=0, y=a and x=0. the fourth side at x=b is maintained at a specified potential v0(y). a. Develop a general formula for the ...
*August 5, 2007 by jake*

**Physics**

Alcohol flows smoothly through a horizontal pipe that tapers in cross-sectional area from A1 = 41.9 cm2 to A2= A1/3. The pressure difference Äp between the wide and the narrow sections of the pipe is 11.1 kPa. What is the volume flow rate ÄV/Ät of the alcohol? The density of ...
*December 2, 2009 by Rebecca*

**Algebra**

1) Mio can build a large shed in 15 days less than Yuuko can. If they build it together, it would take them 18 days. How long would it take each of them working alone? M: Y: 2) A sink can be filled by a pipe in 6 minutes but it takes 12 minutes to drain a full sink. If both ...
*November 6, 2013 by Vice*

**physics**

A horizontal water main with a cross-sectional area of 206 cm2 necks down to a pipe of area 42.4 cm2. Meters mounted in the flow on each side of the transition coupling show a change in gauge pressure of 71.0 kPa. Determine the flow rate through the system, taking the fluid to...
*April 9, 2012 by katie *

**math**

A sludge pool is filled by two inlet pipes. One pipe can fill the pool in 14 days and the other pipe can fill it in 22 days. However, if no sewage is added, waste removal will empty the pool in 35 days. How long will it take the two inlet pipes to fill an empty pool? answer
*November 5, 2014 by anonymous*

**phys101**

a homeowner wishes to drain her swimming pool by siphoning the water,whose depth is h,into a nearby gully a distance H below it,where H is much larger than h.She uses a pipe of cross-sectional areea a,and the pool has surface area A.How long does it take to empty the pool if h...
*April 19, 2010 by KABELO*

**Thermodynamics **

A centrifugal pump compresses 3000 liters/min of water from 98 KPa to 300KPa. the inlet and outlet temp are 25°C. The inlet and discharge pipe are on the same level but the diameter of the inlet piping is 15cm whereas that of the discharge piping is 10cm. Determine the pump ...
*February 16, 2010 by Janus*

**physical**

You are playing a note that has a fundamental frequency of 440.00 Hz on a guitar string of length 59.1 cm. At the same time, your friend plays a fundamental note on an open organ pipe, and 4.0 beats per seconds are heard. The mass per unit length of the string is 1.93 g/m. ...
*April 18, 2014 by mican*

**algebra**

2. The equation relates the radius r of a drainpipe in inches to the flow rate F of water passing through it in gallons per minute. a. Find the radius of a pipe that can carry 600 gallons of water per minute. Round to the nearest tenth. (Let ) b. Solve the following equation ...
*July 11, 2011 by stephanie*

**Physics-Need Help fast!**

Part 1 A 3m long pipe is in a room where the temperature is 20 degrees C. What is the frequency of the first harmonic if the pipe is closed at one end? Part 2 sound traveling in air at 23 degrees C enters a cold front where the air temp is 2 degrees C. If the sound frequency ...
*July 27, 2011 by Megan*

**Design**

The flow system as shown in the Figure, the centrifugal pump(3500 R.P.M.) is delivering water at 100 gal/min and 70 °F into a boiler operating at a pressure of 35 psig. The water levels in the feed tank and boiler are constant. Because corrosion is expected to be negligible, ...
*December 17, 2013 by NONO*

**science****

which of the following situations would be mist similar to an electrical current passing through a metal wire in a closed circuit? A. hot water moving through a pipe B. an automobile traveling through a tunnel C. an airplane flying through clouds D. a flying pan heating up on ...
*July 15, 2011 by Anonymous*

**science****

which of the following situations would be mist similar to an electrical current passing through a metal wire in a closed circuit? A. hot water moving through a pipe B. an automobile traveling through a tunnel C. an airplane flying through clouds D. a flying pan heating up on ...
*July 15, 2011 by Anonymous*

**physics**

Steel expands 11 parts in a million for each 1 degree C change. Consider a 40,000 km steel pipe that forms a ring to fit snugly all around the circumference of the Earth. Suppose people along its length breathe on it so as to raise its temperature 0.80 degree C. The pipe gets ...
*March 31, 2012 by C*

**physics**

Steel expands 11 parts in a million for each 1 degree C change. Consider a 40,000 km steel pipe that forms a ring to fit snugly all around the circumference of the Earth. Suppose people along its length breathe on it so as to raise its temperature 0.80 degree C. The pipe gets ...
*April 1, 2012 by christy*

**physics**

Steel expands 11 parts in a million for each 1 degree C change. Consider a 40,000 km steel pipe that forms a ring to fit snugly all around the circumference of the Earth. Suppose people along its length breathe on it so as to raise its temperature 0.80 degree C. The pipe gets...
*April 3, 2012 by christy*

**Science**

If I take a 1 liter water bottle filled with water, what will most likely happen to the water and why? A.The water will get warmer B.The water will get cooler C.The water will stay the same D.None of the above I've tried this and I think it's A;if so why? Thanks -MC
*December 15, 2008 by mysterychicken*

**chemistry**

tell the taste of these types of water well water mineral water fresh water tap water earated water?
*May 14, 2011 by saim*

**Chemistry **

I'm not sure how to find a linear equation for this problem. One common flow measurement device is the orifice meter, which consists of a disk with a machined hole. It is placed as an obstruction to flow in a pipe, causing pressure drop to occur as the fluid in the pipe goes ...
*December 14, 2011 by Angel*

**science(chem) plastic hedache...can anyone help?**

My hwk Q that I was trying to find the answer to yesterday is this below but I don't know exactly how the placticizing process works. I compiled the chemicals I think I need but other than that I'm stumped as to how to put them together or how. Q: A water pipe has burst in ...
*February 18, 2008 by ~christina~*

**college algebra**

water from a tank is being used for irrigation while the tank is being filled. The two pipes can fill the tank in 6h and 8h, respectively. the outlet pipe can empty the tank in 24h. How long would it take to fill the tank with all three pipes open? round the answer to the ...
*December 12, 2012 by Zachery*

**physic**

an ideal fluid flows through a pipe hat runs up an incline and gradually rises to a height H. The cross sectional area of the pipe is uniform. compared with the flow at the bottom of the incline, the flow at the top is a) moving slower at lower pressure b) moving slower at ...
*January 8, 2012 by john*

**physics**

A horizontal pipe of uniform cross sectional area A empties into a bucket, filling it at a rate R (unit volume per unit time). Use dimensional analysis to determine the speed,v, of the fluid in the pipe to within a dimensionless multiplicative constant of order 1. What happens...
*September 20, 2014 by Yea*

**Music**

How to play the pipe organ
*June 8, 2011 by Pipe organ*

**Physics**

Lubricating oil, with a relative density of 0.79, flows around a 90¨¬ bend. The pipe diameter is 0.45m, and the oil has a pressure head of 7m and the flow is 1.7m3/s. Find the force exerted by the oil on the bend. Oil density = 0.79 X 103 Volumetric mass flow rate = 1.7 m3/s ...
*April 22, 2009 by Henri*

**Physics**

Lubricating oil, with a relative density of 0.79, flows around a 90¨¬ bend. The pipe diameter is 0.45m, and the oil has a pressure head of 7m and the flow is 1.7m3/s. Find the force exerted by the oil on the bend. Oil density = 0.79 X 103 Volumetric mass flow rate = 1.7 m3/s ...
*April 23, 2009 by Henri*

**chemistry**

cold water mass of calimeter+ water: 68.66g mass of calimeter: 19.19g mass of water: 49.47g final temperature of water: 39.1C initial temperature of water: 25.5C delta(T) of water: 13.6C hot water mass of calimeter+ water: 79.55g mass of calimeter: 20.61g mass of water: 58.94g...
*November 30, 2011 by Yuli*

**language**

Write the verb in each sentence. Write whether the action is past, present, or future 1. A Potter adds sand to the clay (adds, present) 2. Then he rolls the clay into long, pipe-shaped pieces. (Pipe-shape, past) 3.Another potters will use a potter's wheel . (will use, future) ...
*February 7, 2012 by jj*

**science**

what the area of an open end of a pipe?
*February 4, 2013 by Michael*

**Physics**

At one point in a pipeline, the water's speed is 3.00 and the gauge pressure is 4.00×104 . Find the gauge pressure at a second point in the line 11.0 lower than the first if the pipe diameter at the second point is twice that at the first. I've been trying to use Bernoulli's ...
*January 30, 2010 by Steph*

**General Science**

Surface water is important because it? 1. furnishes plants with water 2. provides a supply of drinking water 3. contributes to the water cycle 4. supplies water to rivers during dry periods
*May 13, 2009 by Anonymous*

**Science**

Which of the following contain water that is easily available for human use? (more than one answer) Icecaps & glaciers - 76% of fresh water Shallow Groundwater- 12% of fresh water Deep Groundwater - 11% of fresh water Lakes & Rivers - 0.34% of fresh water Water Vapor - 0.037% ...
*January 14, 2010 by Anya*

**english**

The Pied Piper of Hamelin ― Robert Browning "Then, like a musical adept, To blow the pipe his lips he wrinkled, And green and blue his sharp eyes twinkled, Like a candle-flame where salt is sprinkled; And ere three shrill notes the pipe uttered, You heard as if an army ...
*December 9, 2014 by 2phoneeeeee *

**science-plz help this is so urgent!**

8. a) after the oceans, where is the next largest reserve of water found? b) does this reserve contain salt water or fresh water? Fresh water lakes on the surface. Glaciers and icecaps account for a greater amount of water than lakes swamps and rivers if they were melted. I ...
*June 7, 2007 by jen*

**geometry**

A pipe is 30 ft long with a radius of 2ft.What is the maximum volume
*July 14, 2010 by rally*

**Physics**

Water flowing through a 2.8 cm-diameter pipe can fill a 200 L bathtub in 5.8 min. Flow rate Q = volume/time = speed * cross section area Q=200/5.8=speed*.028....i get 1231.52 or Q=(200/348)=speed*.028...i get 20.52 both are wrong so what do i do? then i did speed=200/(pi*.25^2...
*November 17, 2009 by ana*

**college**

In warm climates, drinking water is often cooled by evaporating water from the surfaces of clay pots or canvas bags. How many liters of water may be cooled from 37 ºC to 24 ºC by the evaporation of 100 g of water? The heat of vaporization of water is 2.4 kJ/g, and the specific...
*October 28, 2010 by Abiola Ajibola*

**physics**

What are the temperatures for freezing water and boiling water on the Kelvin temperature scale? a)273K for freezing water; 373K for boiling water b)0K for freezing water; 100K for boiling water c)32K for freezing water; 212K for boiling water
*March 29, 2012 by Kristie*

**Math**

Which figure if any, is topologically equivalent to a sponge? Pencil, Pipe, or Trophy and Why?
*October 25, 2009 by Jenny*

**Math**

Could someone please help me? calculate the volume in cu. ft of a section of drainage pipe that measures 8 feet in lenght and 24 inches in diameter (all measurements has to be in the same units and be careful that you distinguish between diameter and area when using this ...
*February 22, 2007 by Bridget*

**Math 117**

is a pretzel topologically equivalent to a pencil, pipe,trophy or none of these?
*September 9, 2009 by hannah*

**science**

you can produce a sound by plucking a string or blowing in a pipe. how is this alike? how is this different?
*December 15, 2009 by Christina*

**Physics**

Why is the CM of a 1.00m length of pipe at its midpoint, whereas this is not true for your arm or leg?
*February 3, 2010 by Charlie*

**Chemistry**

What's the balanced chemical equation of cleaning up oil, whether it be a spill, pipe etc.
*April 10, 2010 by Juggy*

**sound and music**

How long is an open organ pipe with a fundamental frequency of 493.88 Hz?
*March 15, 2011 by Harie*

**GEOMETRY**

DdETERMINE THE LATERAL AREA OF A PIPE THAT IS 12FT LONG AND 4 INCHES IN DIAMETER
*May 21, 2011 by JOY*

**Math Solve the following**

Question: 1.Russell has a pipe that is 150 inches long. it must be cut into 3 1/8 inches segments for project. How many segments will he have? 2. Rebeckah is an elementary school teacher. she is making an individual craft project kits that requires 2/3 of a cup of water to ...
*October 31, 2012 by jessica*

**8th grade**

how to make a double line graph to show air/water temperatures.mon.air-92 water-68tues.air-94 water-69 wed.air-88 water=70,thurs. air=85 water=72 and friday air=96,water=72
*June 9, 2010 by will*

**math **

could you please tell me how you got the answer reguarding the 2" pipe i would really appreciate it. Thanks
*June 24, 2012 by jay*

**SCIENCE**

A PIPE FULL DIESEL HAS 5 PSI ON IT, AT 70 DEGREES AND ONE DEGREE OF CHANGE = WHAT PRESSURE
*August 24, 2012 by MARTY*

**math**

how do you figure out the diameter of a pipe that is 40 feet high and holds 200000 gallons
*October 23, 2012 by becky*

**3rd homework**

the water cycle lesson 2 how water changes and moves 1. ____________ water changes from a __________ to a _________________ 2. ____________ water changes from a _________ to a ________________ 3. _________________ Liquid water falls to the ground as _______________ * the water...
*October 27, 2010 by choconcung*

**Pipeline design**

Sketch a preliminary layout for the following heat exchanger systems. On the layout sketch indicate pipe work manifolds, access platforms, access for construction, operations and maintenance. In your answer we are looking for thought into the relative sizes of these heat ...
*November 14, 2013 by Tony*

**chemisry**

Why does luis place 3 cups of water without any solute in the freezer? a. if some water spills, he will have extra b. the plain water is the control group c. he wants to know how long water takes to freeze d. the 3 cups of water are unnecessary to the experiment (b)
*February 26, 2010 by mary1111*

**physics**

balloon filled with 1 liter of water (1000 cm^3) in equilibrium in a container of water, the balloon is totally submerged in the water. a. What is the mass of 1 liter of water? b. What is the weight of the 1 liter of water? need assitance in setting up problem and figuring out...
*October 23, 2006 by mitch*

**Math**

Calculate the volume in cu. ft. of a section of drainage pipe that measures 8 feet in length and 24 inches in diameter. 90.4 cu ft.?
*September 30, 2008 by Jen*

**Physics **

Two organ pipes are imitating a sound of 12 Hz, one of them is 12 m long. What is the length of the other pipe?
*December 11, 2013 by Timothy *

**science**

A 20 N object displaces 2,000 mL of water. What is the buoyancy? Hint: 1 mL of water = 1 cm3 of water = 1 g of water (Remember to convert g to kg) Will it float? (yes/no)
*May 1, 2012 by Morgan*

**Chemistry**

If 22 g of water is heated so that the water temperature rises from 18.1°C to 21.5°C, how many calories have been absorbed by the water? The specific heat of water = 1.00 cal / (g · °C)
*October 25, 2010 by Cassie*

**Physics (Liquids)**

Hi! Ok P = Po + (greek lowercase letter Ro)gh pressure = atmospheric pressure + density of fluid(gravity)(pressure head) I derived it using calculus and followed along in the book the book assuems in ther derivation that it's a solid cylinder that sits straight up and down... ...
*October 21, 2009 by Physics (Liquids)*

**Chem**

mass of empty cylinder is 87.470g 97.470g w/10mL of water 107.470g + 10mL of water 117.470g + 10 more mL of water need to know the total volume of water (in mL or cm3) total mass of water density of water calculate the average of the 3 densities of water.
*June 19, 2010 by dra*

**ThermoChemistry**

When 19 mL of water at 22 C is combined with 18 mL of water at 64 C, what is the final temperature of the water?. The specific heat of water is 4.184 J/g/K and its density is 1.0 g/mL.
*December 2, 2011 by LaurenB*

**Economics**

3. Suppose the Clean Springs Water Company has a monopoly on bottled water sales. If the price of tap water increases, what is the change in Clean Water’s profit-maximizing levels of output, price, and profit? Explain in words and with a graph. Take a shot. What do you think. ...
*December 1, 2006 by Sally*

**Pjysics Help!!!**

An organ pipe is open at one end and has a length of 3 m. What is its fundamental frequency if the speed of sound is 336 m/s?
*December 1, 2010 by Andrew*

**Math**

a skateboard with a mass of 1.5 kg moves up a quarter pipe to a height of 5.0 meters. How fast was it moving at ground level?
*October 23, 2014 by Bart*

**Organic Chemistry**

Water/methanol and water/acetone are viable solvent systems for recrystallization,but water/chloroform and water/pentane are not. Briefly explain in 1-2 sentences.
*October 13, 2013 by Cheech*

**mat 116**

two large storage tanks, T and W contain water. T starts losing at the same time additional water starts flowing into W. The graph below shows the amount of water in each tank over a period of hours. Assume the rates of water loss ad water gain continues as shown. At what ...
*March 2, 2014 by csrla*

**physical**

in a water tank is filled wiyh 1026 lter of water,we want to mixed sodium nirtride by 17% of the water,how much we used sodiume nitride in kilogram in to the water?
*September 14, 2013 by imran*

**RE: Water**

If I boil water at home, when and how do I know I've boiled the water long enough to make distilled water?
*January 1, 2008 by Diana*

**Water Treatment**

Based on the treatment scheme, what type(s) of raw water is / are being treated? Groundwater River water Riverbank filtrate Lake water Infiltrated river water please post answer
*October 19, 2013 by Naifaru*

**Chemistry**

A portable electric water heater transfers 255 watts (W of power to 5.5 L of water, where 1 W=1J/s.How much time (in minutes) will it take for the water heater to heat the 5.5 L of water from 27∘C to 49∘C? (Assume that the water has a density of 1.0 g/mL.
*September 12, 2014 by Lisa*

**science**

It is true that ______ a) few plants grow well around water b) plants are better able to seek water than are animals c) water covers about 95% of the plants d) the amount of water in the enivronment limits the kinds of organisms that can live there e) water is not essential to...
*September 10, 2010 by help please*

**physics**

At a construction site a pipe wrench struck the ground with a speed of 24 m/s. (a) From what height was it inadvertently dropped? (b) How long was it falling?
*November 26, 2009 by reemas*

**physics**

At a construction site a pipe wrench struck the ground with a speed of 45 m/s. (a) From what height was it inadvertently dropped? (b) How long was it falling?
*October 6, 2010 by monnie*

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