Saturday

August 30, 2014

August 30, 2014

Posted by **Eric** on Saturday, July 20, 2013 at 4:08pm.

(a) What is the mass of this iceberg, given that the density of ice is 917 kg/m3?

(b) How much heat is required to melt it?

(c) Compare this amount of energy with the annual U.S. energy use of 8 multiplied by 1019 J by taking a ratio.

(d) How many years (365.25 days) would it take sunlight alone to melt ice this thick, if the ice absorbs an average of 100 W/m2, 13.00 h per day?

I know the answers and how to do the a,b,c, but I can't figure out the last one?

a.1.65e15; b.5.51e20; c.6.89; d.44.8Years

- physics -
**Elena**, Sunday, July 21, 2013 at 5:50am(a) m=ρ•V= ρ•L•W•H=917•160000•45000•250=1.65•10¹⁵ kg

(b) Q=mL=1.65•10¹⁵•334000=5.51•10²º J

(c) Q/Q(US) =5.51•10²º/8•10¹⁹=6.89

(d) Q/q= 5.51•10²º/100•160000•45000•13•3600 •365.25 =44.8yr

**Related Questions**

physics - In 1986 a gargantuan iceberg broke away from the Ross Ice Shelf in ...

Maths - A bookshelf has 5 shelves its made from wood that is 30 mm thick and the...

physics 1 - Antarctica is roughly semicircular, with a radius of 2000km. The ...

science - Given that Antarctica is roughly semicircular with a radius of 2000 km...

physics - Ice of mass 11.0 kg at 0.00° C is placed in an ice chest. The ice ...

MATH - a library shelf is 9 ft wide. a set of books fills 1/6 of the shelf space...

Math - A DVD case is 9/16 in. Thick. How many of these cases will fit on a shelf...

5th grade math - A set of books fills a shelf that is 24in long each book is 3/4...

math - the inside of the book shelf is 59in high. the five shelves in it are ...

Business Law II - Ross is a wealthy man. Out of the kindness of his heart, he ...