Sunday
April 20, 2014

Posts by Karie


Total # Posts: 7

Physics
A solar sail is used to propel a spacecraft. It uses the pressure (force per unit area) of sunlight instead of wind. Assume the sail and its spacecraft have a mass of 245 kg. If the sail has an area of 62,500 m2 and achieves a velocity of 8.93 m/s in 12.0 hours starting from r...

Physics
If the juggler wants the balls to remain in the air for 1.4 seconds, (a) what should the vertical velocity be? (b) What should the horizontal velocity be? The distance between the juggler’s hands is 0.70 meters and the acceleration due to gravity is −9.80 m/s^2.

Chemistry
how would you do part b?

Chemistry
how would you do part b?

Chemistry
I dont understand where to start. Do i turn the grams given in part a) to moles first? then i am not sure what to do

Chemistry
Calculate the pH of the following buffer solutions: a) a solution made by dissolving 2.733g KH2PO4 and 4.508g K2HPO4 in water to give 250 ml of solution. b)a solution made by mixing 35.00 ml 0.24 M C6H5NH2 with 15.00 ml 0.19 M C6H5NH3CL. The base dissociation constant Kb is 4....

math homework
helo me unscrammble hpllrdasceeo I checked three sources and found no matches for your word. Are those the correct letters? Is something missing? hello word analogies synonyms sophisticated intellrygent stupendous

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