chem
a rectangular block of the element barium is 5.00cm long , 3.00cm wide and 1.00cm high and it weighs 52.5g. what is the density of the element barium?
physics
A 56 kg bungee jumper jumps from a bridge. She is tied to a bungee cord whose unstretched length is 11 m, and falls a total of 38 m. Calculate the spring stiffness constant k of the bungee cord, assuming Hooke's law applies. Calculate the maximum acceleration she experienc...
Physics
Ummm no one else is using this computer. I am the only one using it. It may be people from my class, because its a large lecture and the teacher mentioned this site today. Now I want to tell the professor to never recommend this site again.
Physics
I don't know about Kathleen or Lauren or whatever I just had a question about this problem. I really didn't know what to do and thought maybe this site could help, but if people like this answer maybe this isn't where I should come for help.
Physics
A 67 kg hiker climbs to the top of a 3700 m-high mountain. The climb is made in 5.5 h starting at an elevation of 2800 m. Calculate assuming the body is 16% efficient, what rate of energy input was required.
Algebra
Solve 16 - 2(8w-7)= 3w - 18(2-w)
geometry
Given: ÚA≅ÚBDE; AB x DE = AD x BD Prove: AB x CD = AD x BC
college
Translate to an equation: r $2 roses and t $2.50 tulips total $30 graph the equation and use the graph to determie three different combinations of roses and tulips that total $30.
college
use the five steps for problem solving. the average of two test scores is 79. if one test score is eleven less than the other, what are the two test scores?
medical
c)the report said the patient died on january 15
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