Recent content by soulja101

Homework Statement Line 1: x-3/3k+1=Y+6/2=Z+3/2K Line 2: x+7/3=y+8/-2k=z+9/-3 Homework Equations Cross product and dot product The Attempt at a Solution vector equation for line 1: (x,y,z)=(4,-4,-3)+k(3,0,2) vector equation for line 2: (x,y,z)=(-4,-8,-12)+k(0,-2,0) The...

Homework Statement Does the line with equation (x, y, z) = (5, -4, 6) + u(1,4,-1) lie in the plane with equation (x, y, z) = (3, 0, 2) + s(1,1,-1) + t(2, -1, 1)? Justify your answer algebraically. Homework Equations The Attempt at a Solution I started by getting the parametric...

Homework Statement How would I prove this projection? I attached the equation. Homework Equations See attached equation. The Attempt at a Solution I tried using the formula with numbers but I didn't get to prove the equation. Any help would greatly appreciated. Thanks

At 350degress celcius the equilibrium constant is 70. at equlilibrium the concentration if HI is 1.32 mol/L and that of H2 is 0.100 mol/L. what is the concentration of I2? would it be 0.32?

can i always the quadratic forumula when i m doing these types of problems. my teacher said i can but sometimes theirs faster ways to do it

What is the pattern can u tell me the pattern

Is there a pattern for resosnant length for closed and open air coloums. Does this apply to instruments.

do i use the Ek=mv2

not much all i know is that there's some kind of pattern

wavelength is 17cm the wave length

Homework Statement If the temperature is 12 degrees and a jet accelerates at rest at 12ms2 for 41s, then what is the Mach value for the jet at the end of 41 seconds Homework Equations mach#=vovs speed of sound equation The Attempt at a Solution v=12degrees a=12ms2 v=339,08ms...

Homework Statement a 512HZ tuning fork held over a bottle receives its 1st harmonic when the level of water is 17cm from the bottle opening. what is the temp of the air Homework Equations sound equation The Attempt at a Solution I have no idea where to start.

Homework Statement A pipe organ playing in a concert produces a 440 Hz signal with a pipe open at both ends.if the ideal temperature is 20degrees, what is the length of the pipe(first harmonic) Homework Equations f=N/T f=1/T v=f*wavelength sound equation The Attempt at a Solution...

Homework Statement A)If an athlete (whose mass is 60.0kg) has an energy conversion effiency of 24% and she has an average power of 325W when climbing stairs how high would she be able to climb with the energy consumed from eating 4 potatop chips(28g of chips has 610 kJ of energy and 28g of...

Homework Statement How long will it take a mass to accelerate from 30.0m/s (south) to 50.0m/s(north) if its acceleration isa sonstant 4.0m/s2(north) Homework Equations displacement=V/Time Aav=V/time The Attempt at a Solution a=4.0ms2 v=20ms d=Vav*time time=v/acceleration...