Saturday
December 3, 2016

# Posts by lexa

Total # Posts: 9

Physics 2
A particle at the Large Hadron collider in CERN is moving at 0.99 c as it emerges from a collision event. A) If these particles live 2.0 microseconds on average when they are at rest, how long would you expect this particle to last in the reference frame of the physicist ...
May 3, 2016

Physics
Laser light of wavelength 550 nm falls upon a diffraction grating. The slits are 25 micrometers apart and each have a width of 2 micrometers. There is a screen 2 meters away from the diffraction grating, parallel to the grating. A) At what angle does the m = 1 intensity peak ...
May 3, 2016

Physics
A particle at the Large Hadron collider in CERN is moving at 0.99 c as it emerges from a collision event. A) If these particles live 2.0 microseconds on average when they are at rest, how long would you expect this particle to last in the reference frame of the physicist ...
March 21, 2016

math
to calculate your square feet, you multiply 24 by 19. You will get 456 sq ft.
May 18, 2015

Chemistry
if 6.5kJ of energy are added to 56.4g sample of iron at 24 degrees C what is the final temperature of the iron? The specific heat of iron is 0.449j/gC
May 18, 2015

chemistry
The reaction of fluorine with ammonia produces dinitrogen tetra fluoride and hydrogen fluorida. 5F2(g)+2NH(g)---> N2F4(g)+6HF(g) A. If you have 66.6gNH3, how many grams of F2 are required for a complete reaction? B. how many grams of NH3 are required to produce 4.65g HFCS? ...
February 20, 2014