Tuesday
May 21, 2013

# Posts by brenda

Total # Posts: 369

science
A grasshopper floating in water generates waves at a rate of three per second with a wavelength of two centimeters. (a) What is the period of these waves in seconds? (b) What is the wave velocity in m/s?

science
the half life of tritium is 12.5 years. How much of a 1 g sample will remain after 25 years

science
When 90 kJ is removed from a 2-kg copper bar its temperature drops from 200 degrees celcius to 85 degrees celcius what is the specific heat of the iron?

college algebra
Solve: sq root of (x+1) minus 3 = sq root of (x+4) when I solve it I get zero, but when I plug it back in only one answer works. do both have to work for it to have a solution?

Your team has been hired as consultants by a company and is meeting with the executive boardPrepare a 15- to 20-slide PowerPoint® presentation with detailed speaker’s notes that describes the ISO 14001 certification process. Address the following topics: o The current...

science
A ball is thrown horizontally from a cliff a 8 m/s. How fast is it moving 2 s later?

statistics
The mooney complete data set

math
what multiplication fact can be found by using the arrays for 2X9 and 5X9?

Algebra
7/2=h 3.1/2

Math
write an equatioin that models how old in years eaach will be 60,55,8 when your ages add up tp 1250 years old.

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