physics
A 0.7 kg object is at rest. A 6.5 N force to the right acts on the object during a time interval of 3.7 seconds. What is the velocity of the object at the end of this interval?
math
I wold like to know if I have this answer right? Factor the trinomial competely. x^2-x-2 My answer is (x-2)(x+1)
math
Mark averaged 60 miles per hour during the 30-mile trip to college. Because of heavy traffic he was able to average only 40 miles per hour during the return trip. What was Mark's average speed for the round trip?
math
After six biology tests, Ruben has a mean score of 73. What score does Ruben need on the next test to raise his average (mean) to 75?
Finite Math
The reading list for a literature class has 6 fiction and 8 nonfiction books. A student is to write a report on 5 books from the list during the semester. The report must include at least 1 and at most 4 reports of fiction books. In how many ways can the selection of books be ...
Math
I've read over it, but I still don't understand how to add together bulbs from the Mandelbrot sets. Please help? I need to know how to add the 1/4 bulb to the 1/6 bulb and the 1/8 bulb to the 1/6 bulb. Thank you!
Chemistry
A 5.0-g Sample of KBr at 25.0 degrees celsius dissolves 25.0 mL of water also at 25.0 degrees celsius. The final equilibrium temperature of the resulting soltution is 18.1 degrees celsius. What is the enthalpy of of solution in kilojoules per mole of KBr?
Calculus - Optimization
The cost of fuel for a boat is one half the cube of the speed on knots plus 216/hour. Find the most economical speed for the boat if it goes on a 500 nautical mile trip.
chemistry
if the molar mass of BaCl2 is 208.3 g/mol, how many grams are present in 0.25 moles?
math/ratios
8/10?
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