- NEW!
Is the understanding difference between youngsters and adults in asking questions or in answers significant here-on the pages of AB?
by prof. mes solzhenitsy on March 23rd, 2012
| 1 person likes this
|
2 answers
|
in General Differential equations
by Anonymous on December 31st, 1969
|
no answers
|
in
How the bloody hell do i solve equations ...
by Sebastian_N on November 10th, 2011
| 1 person likes this
|
3 answers
|
in General Differential equations
3 - 2 + 1 = ?
by Ombliss22 on March 4th, 2011
| 2 people like this
|
5 answers
|
in General Differential equations
How do i integrate dx/x(x+4) = dt? This has been bothering me and I really need to know.
by Anonymous on January 23rd, 2011
| 1 person likes this
|
2 answers
|
in General Differential equations
Solve non-linear homogeneous differential equation using power series methods.
y"+xy'-y = 0 and y'(0) = y(0) = 0
by WarHorseLeBron on September 26th, 2010
|
2 answers
|
in General Differential equations
Find: 1) dP/dy 2) Hence find which year there was the greatest amount of rain?
by MaleMarkB657 on August 13th, 2010
|
2 answers
|
in General Differential equations
I need this differential equation solved. v' + v^2*(Z/m) - g = 0. v varies with time. All else is constant.This is a gravity/drag question
by WarHorseLeBron on June 30th, 2010
|
one answer
|
in General Differential equations
A book for problems in Partial differential equations?
by EKIN on May 24th, 2010
|
one answer
|
in General Differential equations
I'm studying Functional Analysis and need to solve problems in order to assure myself that I've really understood the concepts.
by EKIN on May 24th, 2010
|
no answers
|
in General Differential equations
Find symbolic (analytical) solution of dv/dt = k * v^2 - g. Where g is 9.8, k is .004 (and it accounts for the mass, and v is the velocity.
by beowulf3 on March 7th, 2010
|
one answer
|
in General Differential equations
Is there a formula that causes to simultanious equations to become entagled or does it require a change of coordinate systems?
by good squarel on December 4th, 2009
|
no answers
|
in General Differential equations
(1st # is on top of the ∫ and the 2nd # is on the bottom)
a. 4 ∫ 0 (√x) dx
b. (π/2) ∫ 0 sin (x) dx
c. 3 ∫ 1 (1-3x^3)/(x^2) dx
d. π ∫ 0 (sin^2(x)) dx
e. pi ∫ 0 xcos(x^2 + π) dx
f. 3 ∫ -3 (x^3) dx
please help and show work!
by Anonymous on November 16th, 2009
|
one answer
|
in General Differential equations
Find the general solutions to the following differential equations:
a. (dy/dx)= cube-root (x/y)
b. (d^2x/dt^2)= -ω^2x
c. (d^2x/dt^2)= -g
These are problems from a practice exam, I'm very lost, please show your work! Thank you so much
by Anonymous on November 15th, 2009
|
one answer
|
in General Differential equations
Einsteins special theory of relativity says that mass is related to velocity by m=mo/sqrt(1-v^2/c^2)=mo(1-(v^2/c^2)^-1/2 mo=rest mass c=velocity of light determine increase of mass of an object when v increases from 0.9c to 0.95c. approx. % increase=?
by Anonymous on October 27th, 2009
|
3 answers
|
in General Differential equations
At 2pm thermometer reading 80F is taken outside where the air temp is 20F at 2:03pm, the temp reading yielded 42F. later the thermometer is brought inside where the air is 80F at 2:10pm the reading is 71F when was the thermometer brought indoors?
by Anonymous on October 22nd, 2009
|
no answers
|
in General Differential equations
How do you convert celcius from farenheit step by step?
by Anonymous on October 21st, 2009
|
3 answers
|
in General Differential equations
If a US quarter has 119 ridges, what is the distance between the ridges?
by John on October 21st, 2009
|
one answer
|
in General Differential equations
Integrate xcosxsin2xdx+C?
by 4kids on August 21st, 2009
|
2 answers
|
in General Differential equations
Http://tutorial.math.lamar.edu/Classes/DE/Vibrations.aspx
anyone want to explain how to get from (4) to (5)?
by jehan60188 on July 31st, 2009
|
no answers
|
in General Differential equations
Do you think the equipment worn by swimmers in the world titles or Olympics make much difference in the times they swim.
by bazza on July 26th, 2009
|
one answer
|
in General Differential equations
Is there any other dimension other then x y z?
by mohitK on July 18th, 2009
|
2 answers
|
in General Differential equations
Why do you think that the x-intercepts are called zeros of the equation?
by bo H on July 5th, 2009
|
2 answers
|
in General Differential equations
Linear or non linear(Differential equation):
y'[t^2y''(t)] = 4e^t ?
(dr/dt)^2 = rt ?
F = m dv/dt ?
dr/dt = rt?
by Anonymous on June 27th, 2009
|
one answer
|
in General Differential equations
Is gearing up, the same as multiply?.
by eightopus on June 21st, 2009
|
one answer
|
in General Differential equations
The cost of fuel in running an engine is proportional to the square of the speed and is Rs.48 per hour for a speed of 16 mph. Other costs amount to Rs.300 per hour. What is the most economical speed?
by vijith on June 8th, 2009
|
one answer
|
in General Differential equations
Please help i need the answer for this: y=(2x^3-x^2+x-2)/x^2 ,find dy/dx?
by Anonymous on April 22nd, 2009
|
2 answers
|
in General Differential equations
How do I prove how Digamma (1) = - Euler's Constant?
I know Digamma (z) = d/dz ln Gamma(z)
and
Euler's Constant gamma is .57721...
but I got Digamma(1) to be 1 instead
Digamma(1)
= d/dz ln Gamma(1)
= d/dz ln (1-1)!
= d/dz ln 1
= 1
What's wrong?
by Elijah on March 26th, 2009
|
no answers
|
in General Differential equations
How do i solve the question: The drag parachute of an aircraft generates acceleration a= -0.004v^2. Determine the time required for the velocity to decrease from 80m/s to 10m/s?
by mak on March 22nd, 2009
|
one answer
|
in General Differential equations
What is the mathematical equation to find width if you know length, depth and density?
by freespirit on October 25th, 2008
|
2 answers
|
in General Differential equations
What is so differential about differential equations
by JamesBong on October 18th, 2008
|
3 answers
|
in General Differential equations
One hard maths/stats question
plz see pic ,it is hard to type symbols here
by imaths on September 28th, 2008
|
2 answers
|
in General Differential equations
Can anyone one help me please to understand how to find the Orthogonal trajectory of y= - Ln|x| + c, if you have any idea how to do it, i would be really great full.
by Rhiannon-alyce on September 2nd, 2008
|
2 answers
|
in General Differential equations
What is the y-intercept of y=1/2x+b if it passes through (-8, -4). I think b=0. Yes? No?
by imablueknight on August 13th, 2008
|
2 answers
|
in General Differential equations
Find dy/dx, sin(3x^2+y) + 2x^2y^3 = 4x
by cartridgeman on July 14th, 2008
|
one answer
|
in General Differential equations
Your favorite Q&A site is on Facebook! Become a fan to connect with the ever-growing community of Answerbaggers, share your thoughts and find out what Answerbag's up to next!
