 |
 GEORGE POST ORIGINAL ETCHING BOATS ON SAND WATER OAKLAND CALIFORNIA $125.00 Time Remaining: 28d 18h 43m Buy It Now for only: $125.00 |
 Claire Goldrick original water color very rare $2,000.00 Time Remaining: 1h 1m |
 HD prints original oil painting on canvas Streams of living water 18 $9.99 Time Remaining: 2h 55m |
 Cascading Water ORIGINAL SIGNED Watercolor Painting by STERLING EDWARDS $150.00 Time Remaining: 29d 17h 34m Buy It Now for only: $150.00 |
 Ron Jenkins Artists Proof Rock Creek w additional original water color touch $100.00 Time Remaining: 14h 27m Buy It Now for only: $150.00 |
 1919 Print Bedouin Women Carry Water in Goatskins Camp ORIGINAL HISTORIC IMAGE $40.95 Time Remaining: 29d 2h Buy It Now for only: $40.95 |
 PATCHELL OLSON WATER COLOR SIGNED ORIGINAL FRAMED $68.00 Time Remaining: 15h 47m |
 Original Water Color Painting signed by Allison Kroll $35.00 Time Remaining: 21h 55m |
 1904 Print Cheesman Dam Denver Colorado River Water ORIGINAL HISTORIC IMAGE $46.95 Time Remaining: 29d 2h 25m Buy It Now for only: $46.95 |
 Original Art Water World Issue 2 Page 10 Barbara Kaalberg $35.00 Time Remaining: 1d 18h 17m |
 1917 Print B E Arnolds Oldsmobile Water Pump Car Made ORIGINAL HISTORIC IMAGE $45.95 Time Remaining: 29d 1h 46m Buy It Now for only: $45.95 |
 ANTIQUE ENGLISH WATER COLOR OF WOMAN CIRCA 1820 ORIGINAL FRAME $150.00 Time Remaining: 1d 18h 23m Buy It Now for only: $165.00 |
 ORIGINAL ANDY WARHOL PAINTING on BOARD 20 x 48 WATER DAMAGED PICK UP ONLY $8,000.00 Time Remaining: 2d 1h 6m |
 1906 Print Whale Rock Newport Beach Oregon Water Resort ORIGINAL HISTORIC IMAGE $46.95 Time Remaining: 29d 2h 25m Buy It Now for only: $46.95 |
 ORIGINAL JEANNE HORAK PAIR OF MALLARDS WATER COLORS and PASTELS 1981 $25.00 Time Remaining: 2d 5h 30m |
 Hand Painted Original Water Color Painting $25.00 Time Remaining: 21d 11h 6m Buy It Now for only: $25.00 |
 SIGNED STORTORA WATER COLOR BLUE JAYS ORIGINAL $180.00 Time Remaining: 2d 13h 33m Buy It Now for only: $200.00 |
 Sahall Water Lillies Original Lithograph Hand Drawn Hand Signd $295.00 Time Remaining: 2d 18h 26m |
 1911 Print Water Fowl Birds Anatidae Ducks Geese Paint ORIGINAL HISTORIC IMAGE $38.95 Time Remaining: 27d 19h 17m Buy It Now for only: $38.95 |
 ROCKWELL KENT Signed 1946 Original Lithograph Good Bye Day The Water Carrier $899.00 Time Remaining: 2d 19h 27m |
 1906 Print Quebec Bridge St Lawrence Railroad Water ORIGINAL HISTORIC IMAGE $37.95 Time Remaining: 27d 19h 52m Buy It Now for only: $37.95 |
 Painting original Water color by artist Betty Foy Sanders $100.00 Time Remaining: 2d 19h 28m |
 Burian original vintage c1950 Brown Coal Forest swamp water lilies tapir print $9.99 Time Remaining: 2d 20h 14m |
 Original House Portrait MILLER SALEM 1998 Signed Water color and Ink AUTHENTIC $75.00 Time Remaining: 29d 39m Buy It Now for only: $75.00 |
 Original Wallace Nutting Painting of Lingering Water $29.99 Time Remaining: 2d 23h 17m |
 Lingering Water By Wallace Nutting ORIGINAL PAINTING SIGNED TITLED $99.99 Time Remaining: 28d 18h 15m Buy It Now for only: $99.99 |
 SHIPS SAIL ON CALM WATER Oil Painting On Canvas Original Seascape Abstract $49.00 Time Remaining: 2d 23h 29m |
 Robert Lebron Original Oil Painting The Water Tower in Chicago 1989 $4,600.00 Time Remaining: 2d 23h 32m Buy It Now for only: $6,500.00 |
 Original Water Color Painting by Sam English $400.00 Time Remaining: 9d 23h 17m Buy It Now for only: $400.00 |
 original miniature water color of Mt San Gorgonio 2x3 by Ethel Smeaton $150.00 Time Remaining: 3d 1h 34m Buy It Now for only: $175.00 |
 1912 Print Barge Builders Water Mill Brentford Brangwyn ORIGINAL $47.95 Time Remaining: 27d 17h 30m Buy It Now for only: $47.95 |
 Two original water color prints by Paul N Nortron $35.00 Time Remaining: 3d 10h 29m Buy It Now for only: $40.00 |
 Watercolor Original by Betty J Saarni Framed Matted Beatiful water wood Scene $400.00 Time Remaining: 3d 15h 12m |
 Old Water Gate Leigh Hunt from an original Etching $15.00 Time Remaining: 28d 13h 58m Buy It Now for only: $15.00 |
 Original Water Color of The Alupka Palace in YaltaRussian Crimea $250.00 Time Remaining: 3d 16h 11m |
 SALEOriginal Water color by Russell NorbergFebruary Morning Minnesota artist $555.00 Time Remaining: 22d 14h 58m Buy It Now for only: $555.00 |
 SHANA DOMINGUEZ UNDER THE WATERS EDGE ORIGINAL SIGNED $149.99 Time Remaining: 3d 17h 12m |
 Scott Sandell Artwork The Water Original Paper Collage $999.00 Time Remaining: 3d 18h 16m |
 1927 Capri Italy Italian Woman Water Barrel Keg Costume ORIGINAL PHOTOGRAVURE $45.95 Time Remaining: 27d 20h 27m Buy It Now for only: $45.95 |
 1669 Conrad GESNER WATER BUFFALO ORIGINAL FOLIO 2 WOODCUTS $11.05 (2 Bids) Time Remaining: 3d 18h 59m |
 original water colors of carousel horse childrenframedpairsigned C Stoioff $49.00 Time Remaining: 20d 16h 40m Buy It Now for only: $49.00 |
 ORIGINAL Joseph Clayton Clarke WATER COLORS OF CHARLES DICKENS CHARACTERS $399.99 Time Remaining: 3d 21h 36m |
 wyland original water color $7,500.00 Time Remaining: 3d 22h |
 1926 Isthmus Corinth Canal Greece Hellas Water Gulf ORIGINAL PHOTOGRAVURE $52.95 Time Remaining: 27d 17h 41m Buy It Now for only: $52.95 |
 SALT WATER TAFFY ORIGINAL CANDY FASHION GIRL FINE VINTAGE POSTER REPRO SMALL $4.95 Time Remaining: 3d 22h 11m |
 1901 Print Scarborough Bridge Water Park Swans England ORIGINAL $44.95 Time Remaining: 27d 20h 26m Buy It Now for only: $44.95 |
 1899 ORIGINAL Creeping Common Yellow Water Cress Botanical Flowers Vintage Print $11.95 Time Remaining: 3d 22h 44m Buy It Now for only: $18.95 |
 Paul de Longpre SWEET PEAS original water color Signed and dated 1894 $7,499.00 Time Remaining: 4d 4h 34m Buy It Now for only: $9,500.00 |
 VINTAGE WOODS POND LAKE WATER SCENE 1947 ORIGINAL PANTING OLD ESTATE FIND $99.99 Time Remaining: 26d 12h 38m Buy It Now for only: $99.99 |
 SIGNED ORIGINAL OIL PAINTING ON CANVAS MARINE OCEAN SHIPS BOATS WATER 999 LOOK $9.99 Time Remaining: 4d 6h 2m |
 1976 Akemi Inagaki Wood Block Print Signed Original Stilly Water $75.00 Time Remaining: 26d 17h 54m Buy It Now for only: $75.00 |
 32 Water Lily Metal Wall Painting Decor Canvas Original Arts Cheap Wall Hanging $65.00 Time Remaining: 4d 11h |
 Dorothy Fox American Water Lillies Original 1986 An Exquisite Jewel for the Eyes $145.00 Time Remaining: 4d 14h 56m |
 Water Bats hand colored antique engraving matted original 1885 $22.85 Time Remaining: 15d 12h 1m Buy It Now for only: $22.85 |
 DUTCH OLD MASTER ORIGINAL DRAWING WATER COLOR INK SHIPS ATTR L BAKHUIZEN $199.00 Time Remaining: 4d 15h 25m Buy It Now for only: $500.00 |
 Amish at Street Water Fountain Goshen Indiana 1940s Original Americana Photo $7.70 Time Remaining: 2d 7h 40m Buy It Now for only: $7.70 |
 AFRICAN AMERICAN ART CHAMBER OF HOPE 1 Cidne Wallace ORIGINAL WATER COLOR $49.00 Time Remaining: 4d 15h 29m |
 Original Water Color Ethnic Folk Art $25.00 Time Remaining: 4d 15h 34m |
 Charming Original Water color of Cottage Scene White Picket Fence Dream Garden $15.00 Time Remaining: 22d 22h 58m Buy It Now for only: $15.00 |
 Original Vintage Oil on Masonite Water Landscape Artist Signed F Whitson 1956 $29.99 Time Remaining: 4d 18h 5m |
 OIL PAINTINGCANVASORIGINALSIGNEDTREESWATERCABINFREE SHIPPING $19.99 Time Remaining: 8d 5h 18m Buy It Now for only: $19.99 |
 Original water color By Robert Hiram Meltzer AWS $1.00 Time Remaining: 4d 18h 56m Buy It Now for only: $10,000.00 |
 Vintage Framed Matted Original Signed Water Color Art Painting by Macauley $9.99 Time Remaining: 4d 19h 41m |
 OIL PAINTINGCANVASORIGINALSIGNEDWATERBRIDGETREESFREE SHIPPING $19.99 Time Remaining: 8d 5h 18m Buy It Now for only: $19.99 |
 Original Oil painting on canvas Water Drops from Heaven Ready to hang $199.00 Time Remaining: 4d 20h 41m |
 Antique Vintage Drinking Gourd Water Bottle Original Leather Strap Beading $59.95 Time Remaining: 21d 16h 12m Buy It Now for only: $59.95 |
 Original 1979 Oil Painting Scenic Town And Villagers By Water Bay Signed G $295.00 Time Remaining: 4d 22h 14m |
 OLD ANTIQUE LANDSCAPE ORIGINAL WATER COLOR SIGNED BY OE WHITNEY LATE 1800s $999.99 Time Remaining: 4d 22h 37m |
 Original Babette Eddleston Water Color Painting Daisies still life framed $285.00 Time Remaining: 6d 11h 21m Buy It Now for only: $285.00 |
 VINTAGE ORIGINAL WATER COLOR FRAMED LISTED ARTIST VERA KIRK PENN FARM HOUSE $149.99 Time Remaining: 4d 23h 9m |
 Alexandra Nechita SILENT WATER LILY ORIGINAL Signed Art $1,950.00 Time Remaining: 29d 16h 21m Buy It Now for only: $1,950.00 |
 Original water color painting by Rita Smith $100.00 Time Remaining: 4d 23h 9m Buy It Now for only: $125.00 |
 VNTG Original Pen Water Color YAYKO 73 FREE SHIPPING $34.95 Time Remaining: 4d 23h 33m Buy It Now for only: $39.95 |
 Original Ken Dallison Water Color Print 1931 Four Season Studebaker $85.00 Time Remaining: 26d 15h 5m Buy It Now for only: $85.00 |
 Robert Wyland Open Ocean Dolphin Original Signed Water Color with Koa frame $2,900.00 Time Remaining: 5d 13h 26m Buy It Now for only: $6,600.00 |
 Vintage Original Water Color Painting of European Castle Church by Herbert Money $125.00 Time Remaining: 25d 4m Buy It Now for only: $125.00 |
 1669 Conrad GESNER WATER MOUSE Wild Mouse ORIGINAL FOLIO 3 WOODCUTS $9.99 Time Remaining: 5d 15h 44m |
 4 Signed Water Color Art John Haymson Original Vintage Cityscapes Rare Estate $300.00 Time Remaining: 5d 16h 42m Buy It Now for only: $800.00 |
 1911 Print Grain Ship Along Tacoma Water Front Seaport ORIGINAL HISTORIC IMAGE $37.95 Time Remaining: 29d 2h 30m Buy It Now for only: $37.95 |
 ORIGINAL WATER COLOUR BY DIRK MARCUS THE COACH HOUSE C1980S LOVELY $25.00 Time Remaining: 5d 21h 31m |
 1911 Print Craft Invention Boat Rolls Over Water Iowa ORIGINAL HISTORIC IMAGE $37.95 Time Remaining: 29d 2h 30m Buy It Now for only: $37.95 |
 L HAINES ORIGINAL OIL PAINTING ON CANVAS SIGNED BUILDINGS ON THE WATER $9.99 Time Remaining: 5d 21h 57m |
 Original DECORATIVE Gilt Framed Water Color of Cardinal de Richelieu c40s 50s $49.99 Time Remaining: 5d 22h 38m |
 Vintage Original Landscape Water Color Painting Signed by Emilee Felknor $25.99 Time Remaining: 21d 16h 31m Buy It Now for only: $25.99 |
 Puppy Dog Water Color Ink Painting Art Original Signed Carlson Framed 5X7 VTG $9.99 Time Remaining: 5d 22h 56m |
 Original Water Color of Bald Eagle in flight over the beach Nicely detailed $50.00 Time Remaining: 9d 16h 20m Buy It Now for only: $50.00 |
 One of A kind Original Water color Painting of a Church by Fuson Barbara $50.00 Time Remaining: 5d 23h 45m |
 A RARE RARE Water Color of Muel Coupe no 120 Le Guide de Brice Thomas Original $80.00 Time Remaining: 6d 1h 17m |
 1913 Art Nouveau Woman Lady Water Rock Color Print ORIGINAL $74.95 Time Remaining: 27d 17h 15m Buy It Now for only: $74.95 |
 Vintage pair of original water color paintings signed by Riley original frames $49.99 Time Remaining: 6d 2h 9m |
 1911 Print Seattle Fresh Water Canal Railroad WA ORIGINAL HISTORIC IMAGE $38.95 Time Remaining: 29d 2h 30m Buy It Now for only: $38.95 |
 Original Water Color Painting Old Time Town Beautiful GREAT DETAIL $49.99 Time Remaining: 6d 12h 6m |
 VINTAGE ORIGINAL WATER COLOR PAINTING DAISIES AND ORANGE POPPIES SIGNED ISAACK $9.99 Time Remaining: 6d 15h 14m |
 HUGE ORIGINAL ART seascape beach water wave OIL PAINTING GALLERY 60 on canvas $94.98 Time Remaining: 5d 21h 53m Buy It Now for only: $94.98 |
 Original Vintage Millard Lomakema Southwest Indian Painting Water Maiden $99.99 Time Remaining: 6d 22h 32m |
 1908 Print Crooked Falls Water Landscape Missouri River ORIGINAL $42.95 Time Remaining: 29d 2h 28m Buy It Now for only: $42.95 |
 WYLAND ORIGINAL SIGNED DOLPHIN WATER COLOR PAINTING ART KOA FRAME CERTIFICATE $5,725.00 Time Remaining: 15h 44m |
 RARE EINAR BJERKE 1924 ORIGINAL WATERCOLOR PAINTING BEAUTY JUMPING IN WATER RARE $10.50 (2 Bids) Time Remaining: 22h 19m |
 ORIGINAL 8 X 10 WATERCOLOR FRAMED DREHER ISLAND SC WITH WATER AND TREES $45.00 Time Remaining: 14h 17m Buy It Now for only: $45.00 |
 DANIEL RENN PIERCE ORIGINAL MOONLIT WATERS LOONS ACRYLIC ON BOARD 24X48 $499.99 Time Remaining: 1d 22h 18m |
Original Water
The Article was not found...
How much hot water is needed to bring the bath back to its original temperature?
A bath is filled up with hot water, say 42 degrees C. A volume of cold water is added, taking the temperature down to 38 degrees C.
As a proportion of the water that is already in the bath, how much hot water (42 degrees C) will be needed to bring the whole bath back up to 42 degrees C.
If you could show your working and explain any laws you are using that would be great.
Use Q=mcθ
where Q=energy in Joules
m=mass in kg
c=specific heat capacity, unit is J/[(kg)(℃)]
specific heat capacity of water is 4200 (around that)
temperature change is 4 deg
assume mass of water at first is 100g.
assuming no heat loss, the loss of heat in the water of 42deg = gain of heat in the water of 38 deg.
thus Q1 = Q2.
(100)(4200)(4)=(4200)(4)m
m=0.01g
thus the total mass of water now is 100.001g.
now, to pour 42deg water to bring it up to 42deg.
Q1=Q2
m1c1θ1=m2c2θ2
(100.001)(4200)(4)=m(4200)(0)-->no change in temp. stay at 42
thus, m=[(100.001)(4200)(4)]/[(4200)(0)]
the answer is undefined , ∞
therefore, the amount of water is undefined, or rather, infinity. impossible to bring it back up to 42 deg with water of temp 42 deg.
remember, eqn is Q=mcθ
where Q=energy in Joules
m=mass in kg
c=specific heat capacity, unit is J/[(kg)(℃)]
Water Chevrotains Are Adorable, Crowned Eagles are Nasty (original narration by Randall)