Sunday
December 21, 2014

Posts by Rex


Total # Posts: 25

physics
why is the following situation impossible? a normally proportioned adult walk briskly along a straight line in the +x direction, standing straight up and holding his right arm vertical and next to his body so that the arm does not swing. his right hand holds a ball at his side...
August 2, 2014

Physics
A +30 µC point charge is placed 32 cm from an identical +30 µC charge. How much work would be required to move a +0.45 µC test charge from a point midway between them to a point 11 cm closer to either of the charges?
October 16, 2013

Mathg
Last semester, a certain professor gave 26 As out of 332 grades. If one of the professor's students from last semester were selected randomly, what is the probability that student received an A? (Assume that each student receives one grade.)
September 14, 2013

Math
A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 4.1 cross 102 µm.
August 7, 2013

physics
In the drawing, the weight of the block on the table is 380 N and that of the hanging block is 175 N. Ignore all frictional effects, and assuming the pulley to be massless. What is the acceleration of the two block?
July 10, 2013

physics
two ropes are tied on a post and applied with forces of 8 and ion.If the amgle between them is 60degrees. Find the resultant vector
July 6, 2013

science
How many grams of water, H(subscript 2)O, and propene, C(subscript 3)H(subscript 6), can be formed from the reaction of 6.0 g of 2-propanol, C(subscript 3)H(subscript 8)O?
April 28, 2013

Chemistry
5.032*10^15
January 12, 2013

Chemistry
5.043*10^-7
January 11, 2013

Chemistry
5.043*10^-7
January 11, 2013

chemistry
5.043*10^-7
January 11, 2013

chemistry
5.043*10^-7
January 11, 2013

Chemistry
5.043*10^-7
January 11, 2013

Physics
What do I use for q?
June 6, 2012

Physics
Singly charged positive ions are kept on a circular orbit in a cyclotron. The magnetic field inside the cyclotron is 0.947 T. The mass of the ions is 3.01×10-26 kg, and speed of the ions is 3.45 percent of the speed of the light. What is the diameter of the orbit? (The ...
June 6, 2012

marketing
Select three major sales promotions from different companies.
May 22, 2011

physics
Density=mass/volume Density=100grams/50 cu.cm Density=2gm/cu.cm
April 21, 2011

physics
A 5.0-kg block at rest on a frictionless surface is acted on by forces F1 = 5.5 N and F2 = 3.5 N. What additional horizontal force will keep the block at rest? Answer: F3 = (-7.6 N)
April 20, 2011

Pyshics
A car is travling forward at 75km/h. How far does the caar tavel in 25 s?
September 19, 2010

4th grade science
what to do
September 30, 2008

English
How does an individual struggle to gain freedom against the restraints of society? How should I answer this essay question? Could you direct me on how to answer this essay question? I was thinking about how individuals rebel against society to gain freedom, but I think this is...
November 21, 2007

math/algebra
how do I solve system of linear inequalities by graphing x-y<=3, x+2y=>6.
September 16, 2007

English - Hamlet
What's so significant with the phrase "Who are they?" It's overused in the play and I don't know why they keep repeating it. I know some of the characters have trust issues, but I'd like a detailed explanation as to why. Thanks in advance.
September 7, 2007

math
9000min
September 7, 2007

English
SORRY DONT KNOW
November 20, 2006

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