Sunday
May 19, 2013

# Posts by Jackie

Total # Posts: 677

physics
Can someone please help me solve this: An 7.74g bullet is fired into a 320g block that is initially at rest at the edge of a frictionless table of height h = 1.07 m The bullet remains in the block, and after the impact the block lands d = 2.07 m from the bottom of the table. A...

algebra
A shipping clerk wishes to determine the weights of each of the 4 boxes. Each box weighs a different integer amount less than 70 kg. Unfortunately, the only scales available measure weights in excess of 70 kg. The clerk therefore decides to weigh the boxes in pairs so that eac...

Calculus
If it takes 90N to stretch a spring 1/2 m beyond equilibrium, use an integral to find how much Work it takes to stretch the spring 5m beyond equilibrium

Calculus
integrate (27x -9x^2)/sqrt(x^3 +9)

math
find the whole-number possibilities for the lengths of the bases of a trapezoid with a height of 1m and an area of 3m squared. Explain how you found your answer

Math
The hourly operating cost of an airplane, which seats up to 405 passengers, is estimated to be \$5,500. If an airline charges each passenger a fare of \$100 per hour of flight, find the hourly profit P it earns operating the airplane as a function of the number of passengers x. ...

Math
The hourly operating cost of an airplane, which seats up to 405 passengers, is estimated to be \$5,500. If an airline charges each passenger a fare of \$100 per hour of flight, find the hourly profit P it earns operating the airplane as a function of the number of passengers x. ...

Perimeter
A rectangle has a perimeter of 12m. If each side is a whole number of meters, what are the possible dimensions for the length and width?

algebra
what is the expression that best represents the side of a square with the area of 100x^4y^8

accounting
Recently Boeing has maintained a cash balance of over \$6 billion. At an annual inflation rate of about 2 percent, does cash have more or less purchasing power at the end of a given year than at the beginning? By how much? Is such a gain or loss reflected on the company’s ...

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