A few questions.

[Celsion]

A 1.00 kg ball is released from rest 1.00 m above a vertically coiled spring. If it compresses the string 20 cm, then the spring constant must be?

The period of Jupiter is about 4329 days. If the mean Earth-Sun distance is 150*10^6 km, then the mean Jupiter-Sun distance is?

Joe is standing on a scale in an elevator that reads 82 kg when the elevator is at rest. The elevator briefly accelerates at .45g downward. What does the scale read during the acceleration? (g=9.8 m/s^2)

Calculate the K value for bismuth sulfide(BS) which has a solubility of [1*10^-15].

A 100 kg mass is supported by two cords as shown below. Find the tension in the horizontal cord if theta=45 degrees. (Diagram= problem 50, 2007-2008 TMSCA #6/UIL C)

Also, how would you solve a problem if given length, mass, frequency of a certain harmonic to find tension?

[jscherm]

[bradp]

for #53, i played aroudn with the units and eventually [unparseable or potentially dangerous latex formula] gave one of the answers

[mathslug]

Did MacArthur take UIL C, and if so, how did you guys do?