Answers created by Eddie

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• Two is four more than twice a number. What is the number?
  
• Question #54070
  
• Question #878c8
  
• Question is too big, however, I desperately need help plz?
  
• Evalute #lim_(x->oo) [sqrt(x^2+x+2) - sqrt(x^2-3x-5)]#?
  
• Question #fdd62
  
• (Thermodynamics) Which of the following is not an assumption on which the kinetic model of an ideal gas is based? and why?
  
• The diagram shows three circuits with identical batteries, identical inductor and identical resistors . Rank them according to the current through the battery ?
  
• Question #c9db1
  
• What is the Solution of the Differential Equation # (dP)/dt = kP - AP^2#?
  
• A bar magnet falling inside a vertical metal tube reaches a terminal velocity even if the tube is evacuated so that there is no air resistance. Explain?
  
• Question #e8420
  
• Question #fc71d
  
• The critical angle for total internal reflection in lucite is 41 degrees. How do you find lucite's index of refraction?
  
• The period of oscillation of a simple pendulum of length L suspended from the roof of a rocket accelerating upwards with a constant acceleration (g) is given by? A.Infinite B.0 C.#2π√l/(2g)# D.#2π √l/(g)#
  
• After absorbing a neutron, a Uranium-235 nucleus can fission to produce Barium-141 and krypton-92. Calculate the energy that would be released from this fission of a Uranium-235 atom. How do you work this out?
  
• Question #85389
  
• How do you find the amplitude and period of #Arc Tan#?
  
• Question #f63e5
  
• Prove the postulate below?
  
• If #vec a# and #vec b# are two equal vectors inclined at the angle #theta# then value of #sin (theta/2)=?#
  
• Question #ffb6c
  
• Question #2363c
  
• Find the potential difference across the plates given plate area, charge, and distance between plates? Why is k excluded from equation?
  
• Question #5699b
  
• How do you solve #kx^2-13x=5# where #-1/3# is one solution of the equation?
  
• Question #9ba25
  
• Question #e6ee7
  
• Question #ddefc
  
• Suppose a 2 × 2 matrix A has an eigenvector (1 2) , with corresponding eigenvalue −4. what is A(-2 -4) ?
  
• Question #c64aa
  
• Question #18ca7
  
• Question #95164
  
• Question #6c0db
  
• Question #81d1e
  
• Question #287c9
  
• Question #db111
  
• #d/dx[int_1^tanx sqrt(tan^-1t)dt]#?
  
• Three cards are selected at random from a group of 7. Two of the cards have been marked with winning numbers. What is the probability that exactly 1 of the 3 cards has a winning number?
  
• Question #c14ae
  
• Question #ed5a0
  
• Question #b6b7c
  
• Question #cd5a1
  
• Question #ceca6
  
• If the shown shape has a depth of 4 what is its total volume?
  
• Error propagation in pendulum ?
  
• Clarification on universal gravitational potential energy re: planet orbiting a star?
  
• Question #65c36
  
• Question #ca98e
  
• Question #d5420
  
• Question #f567f
  
• Is #6sin(x)cos(x)# equivalent to #3sin(2x)# or #sin(3x)#?
  
• Question #8c0cb
  
• Question #0516e
  
• Question #dd5ca
  
• How do you find a unit vector perpendicular to 4i - 3j +k and parallel to the x-y plane?
  
• Question #268cb
  
• Question #c8727
  
• How you calculate this? #abs((a,a+1,a+2),(a+1,a+3,a+1),(a+2,a+1,a))#
  
• Question #959ae
  
• Question #09a79
  
• Question #7f620
  
• Question #cdb28
  
• Question #622f2
  
• Question #9aff0
  
• Question #b6ca5
  
• I really don't understand this calculus 2 problem?
  
• Question #ea791
  
• Which of Kepler's laws gave Newton the idea about gravitational force and how it is related to distance?
  
• Question #db458
  
• Could you please solve and explain this question using Gauss' Law ?
  
• Question #1ef6f
  
• Question #9dea4
  
• Question #01422
  
• How do you find the derivative of #F(x)=cose^tdt# from #[pi, lnx]#?
  
• What is the electric potential from a charge of 3.0 x 10^-5 C at 15 cm and 65 cm? How much work must be done to carry a +2.3 x 10^-3 charge from 65 cm to 15 cm?
  
• What is the average speed of an object that is still at #t=0# and accelerates at a rate of #a(t) =1-t# from #t in [0, 1]#?
  
• Frequency of vibration of two masses connected by a spring?
  
• Question #17b7c
  
• Question #e69da
  
• Two non collinear position vectors #veca & vecb# are inclined at an angle #(2pi)/3#,where #|veca|=3 & |vecb|=4 #. A point P moves so that #vec(OP)=(e^t+e^-t)veca +(e^t-e^-t)vecb#. The least distance of P from origin O is #sqrt2sqrt(sqrtp-q)# then p+q =?
  
• Question #71748
  
• Question #83ab4
  
• Question #f20de
  
• What is the electric field strength, the energy stored and the electric flux density of ?
  
• How do you find the lengths of the curve #8x=2y^4+y^-2# for #1<=y<=2#?
  
• Question #0f024
  
• If |A+B|=|A|+|B| then the angle between the vectors A and B is *0 *180 *90 ?
  
• How does electromagnetism affect plant growth?
  
• Question #8e958
  
• Question #9c6e9
  
• The force applied against a moving object travelling on a linear path is given by #F(x)= sinx + 1 #. How much work would it take to move the object over #x in [ 0,pi/4 ] #?
  
• Two identical ladders are arranged as shown in the figure, resting on a horizontal surface. Mass of each ladder is M and length L. A block of mass m hangs from the apex point P. If the system is in equilibrium, find direction and magnitude of friction?
  
• Question #ebb84
  
• Question #4e666
  
• Question #cb79f
  
• Question #4b856
  
• How do you solve the system #x+y+z=-3#, #3x+y-z=13#, and #3x+y-2z=18#?
  
• Why is it that an interference pattern will not be seen when electrons fired through a double slit are observed? Is watching the interference pattern forming not considered as observing which particular slit the electrons pass through?
  
• Find the derivative of this function?
  
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