dave444
 Name:
 David Langs
 School:
 University of South Carolina
 About:
 My degree is in physics, and my interests are in math and physics.
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Questions Answered

joshuanoble2000:
Group Title
Find a function whose derivative is 3x^2(x^3 + 2)^12
 updated 2 years ago
 36 replies
 2 Medals
Mathematics

nisa:
Group Title
a ball is thrown straight up in the air as the ball rises does itz velocity increase decrease or remain the same? does its accelaration incr…
 updated 2 years ago
 5 replies
 2 Medals
Mathematics

gvetrichezhian:
Group Title
Instead of OR Gate, why should not use the XOR Gate in the Full Adder circuit in order to add the output Carry of the two Half Adders?
 updated 2 years ago
 4 replies
 No Medals Yet
Mathematics

gwynne8188:
Group Title
a gardener has 46ft of fencing to be used to enclose a rectangular garden that has a border 2 feet wide surrounding it. if the length of the…
 updated 2 years ago
 32 replies
 1 Medal
Mathematics

allyfranken:
Group Title
find the set of points where the function is continuous:
f(x,y) = (xy)/(1+x^2 + y^2)
 updated 2 years ago
 5 replies
 2 Medals
Mathematics

Z11:
Group Title
Find a nonzero, twobytwo matrix such that:
[6, 5] x [__, __] = [0, 0]
[24, 20] [__, __] [0, 0]
…
 updated 2 years ago
 2 replies
 3 Medals
Mathematics

allyfranken:
Group Title
find the first partial derivative:
f(x, y) = y^5 3xy
…
 updated 2 years ago
 6 replies
 3 Medals
Mathematics

c0c0pIe:
Group Title
A 200 g particle gains a momentum of 25 Ns in 12 s starting from rest. Find the
kinetic energy of the particle and the applied force.
 updated 2 years ago
 1 reply
 2 Medals
Mathematics

gwynne8188:
Group Title
trent can deliver his newspapers in 30 minutes. it takes lois 20 minutes to do the same route. how long would it take them to deliver the n…
 updated 2 years ago
 6 replies
 2 Medals
Mathematics

superbenman222:
Group Title
can anyone quickly explain to me the theory of relativity and 3rd dimension space bend and time curvature?
 updated 2 years ago
 4 replies
 2 Medals
Mathematics

Brent0423:
Group Title
A cart of mass mA = 5.9 kg is pushed forward
by a horizontal force F. A block of mass
mB = 0.9 kg is in turn pushed forward by the
…
 updated 2 years ago
 5 replies
 1 Medal
Mathematics

nancyd:
Group Title
A stream’s discharge _____.
 updated 2 years ago
 2 replies
 No Medals Yet
Mathematics

shubham:
Group Title
http://en.wikipedia.org/wiki/Linear_particle_accelerator
Why do we need drift tubes, we could have accelarated particles by just subjecting…
 updated 2 years ago
 2 replies
 1 Medal
Mathematics

Awstinf:
Group Title
At the bow of a ship on a stormy sea, a crewman conducts an experiment by standing on a bathroom scale. In calm waters, the scale reads 182l…
 updated 2 years ago
 2 replies
 1 Medal
Mathematics

badreferences:
Group Title
Here's a painful mix of real analysis and caluclus ;D
Does the following series converge or diverge?
…
 updated 2 years ago
 16 replies
 4 Medals
Mathematics