Wednesday
June 19, 2013

# Posts by jen

Total # Posts: 3185

algebra
if a wall is 34 feet, how tall must a ladder be to reach the top if at a 75 degree angle

algebra
if lisa studies for 9 hours and gets a score of 75. How long would she have to study to get a score of 94

physics..
what's the density of a box whose weight is 1648 newtons and whose volume is 2.8 cubic meters? Will it float in a liquid whose density is 600 kilograms per cubic meter?

physics
if the pulleys are massless and frictionless and the rope is of negligible mass, and aristotle wanted to raise the 332 newton weight to a height of 6 meters. A-find the magnitude of force F he needed to pull on the rope to move the weight upward with a constant velocity. B-Wha...

physics
the supports are on each end and the weight is in the middle

physics
A weightless beam rests on two supports. The beam supports a weight of 120 newtons. What are the magnitudes of the forces on each end ( A & B) of the beam?

physics
again-set up?

physics
A female whose mass is 130 kilograms is standing on a scale in an elevator that has an initial downward velocity of 6 meters per second and is accelerating upward at 7 meters per second. What's the magnitude of the apparent weight indicated by the scale?

physics
I'm confused as how you'd set these up..

physics
Trenton struggled as he lifted a 27kg mass vertically a distance of 9 meters in 4minutes with a constant velocity. A-how much work did he do? B-What was the average power comsumption in watts?

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