Sunday
December 8, 2013

# Posts by lib

Total # Posts: 18

physics
a hot-air balloon having initial velocity vi as it ascends. Then, a water balloon is dropped from the basket when it is 135 meters high and would hit the ground after 9.00 seconds. a) find the velocity of the hot-air balloon upon release of the water balloon. The person in the...

physics
When baseball players throw the ball in from the outfield, they sometimes allow it to take one bounce before it reaches the infield on the theory that the ball arrives sooner that way. Suppose the angle at which a bounced ball leaves the ground is the same as the angle at whi...

physics
A rowboat crosses a river with a velocity of 4.23 mi/h at an angle 62.5o north of west relative to the water. The river is 0.543 mi wide and carries an eastward current of 0.73 mi/h. How far upstream is the boat when it reaches the opposite shore?

physics
A rowboat crosses a river with a velocity of 4.23 mi/h at an angle 62.5o north of west relative to the water. The river is 0.543 mi wide and carries an eastward current of 0.73 mi/h. How far upstream is the boat when it reaches the opposite shore?

physics
A Nordic jumper goes off a ski jump at an angle of 10.0Â° below the horizontal, traveling 92.0 m horizontally and 47.0 m vertically before landing.; (a) Ignoring friction and aerodynamic effects, calculate the speed needed by the skier on leaving the ramp

Algebra
The owner of a quick oil-change business charges \$20 per oil change and has 40 customers per day. If each increase of \$2 results in 2 fewer daily customers, what price should the owner charge (to the nearest \$2) for an oil change if the income from this business is to be as gr...

Math
Could someone tell me the rate for a \$6000 gift that grew to 7,000,000 over 200 years?

Physics
It is not the algebra that is confusing it is setting up the problem

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