Tuesday
December 10, 2013

Posts by Alan

Total # Posts: 320

Calculus
If 27 J of work are needed to stretch a spring from 18 cm to 24 cm and 45 J are needed to stretch it from 24 cm to 30 cm, what is the natural length of the spring?

calculus
find the rms value of the function i=15(1-e^-1/2t) from t=0 to t=4

Physics180
we dont know the mass of the astroid, how do we use the equation you have provided?

Physics180
Tidal forces can break apart objects that orbit too close to a planet, producing rings like those of Saturn. Consider an asteroid 600km in radius, 65mm from Saturn's center. What's the difference in gravitational acceleration between the two sides of the asteroid?

physics
A simple harmonic oscillator has spring constant = 8.8N/m , amplitude = 11cm , and maximum speed 4.6 m/s. what is the speed at x=6cm?

Physics
A spring with k=42N/m is mounted horizontally at the edge of a 1.2m high table. The spring is compressed 5cm and a 25g pellet is placed at its end. When the spring is released,m how far horizontally from the edge of the table does the pellet strike the floor?

Statistics
A young guy is setting up a date for his girlfriend. He has the option of going to Chicago, Indianapolis, or staying in Lafayette. If he chooses Chicago, he has 10 choices for a play and 100 choices for a restaurant. If he opts of Indianapolis, he has 5 choices for a play and ...

math
Wonderful help. Thank you.

math
Thanks for your help, I guess we took different approaches to this so now I'm a little confused. Is it possible to explain a little clearer?

math
From an observation tower that overlooks a runway, the angles of depression of point A, on one side of the runway, and point B, on the opposite side of the runway are 6 degrees and 13 degrees, respectively. The points and the tower are in the same vertical plane and the distan...

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