Friday
December 13, 2013

# Posts by elizabeth

Total # Posts: 773

Physics
A semitrailer is coasting downhill along a mountain highway when its brakes fail. The driver pulls onto a runaway-truck ramp that is inclined at an angle of 10.0° above the horizontal. The semitrailer coasts to a stop after traveling 137 m along the ramp. What was the truc...

Physics
hmm this isnt the write answer, i wonder what went wrong?

Physics
hmm this isnt the write answer, i wonder what went wrong?

Physics
The model airplane in figure below is flying at a speed of 21 m/s on a horizontal circle of radius 18 m. The mass of the plane is 0.82 kg. The person holding the guideline pulls it in until the radius becomes 11 m. The plane speeds up, and the tension in the guideline becomes ...

Find all extrema for the function y=x^5-2x^3+3 on the interval [-10...10]

Find all extrema for the function y=x^5-2x^3+3 on the interval [-10...10]

physics...PLZ HELP! =)
A constant force acts on a moving object. The object makes a fixed magnitude of displacement in some direction. In general, in what direction is the displacement that will result in the object traveling with the least kinetic energy after the displacement occurs? A.The same di...

physics..help PLZ!!
An object undergoes a displacement while being acted on by a constant force directed to the north. The work done on this object by the force is positive during the displacement. Which statement is necessarily true about the average velocity of the object during the displacemen...

calculus
suppose f(x) is a function such that f(3)=5, f'(3)=0, and f''(3)=3. Is the point (3, 5) a relative maximum, minimum or inflection point?

Calculus
A metal cylindrical container with an open top is to hold 1 cubic foot. If there is no waste in construction, find the dimensions which will require the least amount of material.

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