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Physics question, torque?
A uniform plank of length 6.00 m and mass 30.0 kg rests horizontally across two horizontal bars of a scaffold. The bars are 4.50 m apart, and 1.50 m of the plank hangs over one side of the scaffold. Draw a free-body diagram of the plank. How far can a painter of mass 70.0 kg walk on
the overhanging part of the plank before it tips?
3 AnswersPhysics5 years agophysics question?
if the angular speed before the collision is 1 rad/sec, what will be the angular speed (in rad/sec) after the collision if the mass of the second disc is 2 times larger than the one of the first disc
1 AnswerPhysics5 years agoexpress z1=e^(ipi/2) and z2=e^(ipi/6) in the form z=a+ib?
2 AnswersMathematics5 years agoThe movement of water across the plasma membrane can be described by all of the following EXCEPT?
facilitated diffusion through aquaporins.
simple diffusion.
carrier-mediated facilitated diffusion.
passive membrane transport.
1 AnswerBiology6 years agosketch graph of f(x)=-2/(log₂(x+2)) without technology. (I Know what the final graph looks like, I just need steps to take to get there)?
Please show procedure! Thank you!!!
2 AnswersMathematics6 years agoprove ((1-cosx)/(cosx))/tanx=((tanx)/(1+cosx))/cosx?
2 AnswersMathematics6 years agoPigment chromatography lab please help?
I used a spinach leaf. The solvent was 9 parts petroleum ether: 1 part acetone
1. What type of molecules are these pigments (carbohydrates, proteins, etc)?
2. Why sis you have to stop the chromatography process before the solvent front reacched the top of your chromatography strip? What would happen to your chromatogram if you let it run too long?
1 AnswerBiology7 years agosolve 1/(sinx)<4 where 0<x<360?
2 AnswersMathematics7 years agosolve |x/(x-4)| >1 note: > as in greater or equal to?
1 AnswerMathematics7 years agorespiration question?
How many oxidations occur between glycolysis and Krebs cycle, per pyruvate?
which electron carrier accepts these electrons?
c)How many ATPs (gross) are produced by substrate level phosphorylation in this step?
1 AnswerBiology7 years agoadvanced functions?
True or false
1.a polynomial equation of degree 3 with three distinct zeros will have at least one solution with an instantaneous rate of change of zero
3.a a polynomial function of degree 5 with three distinct zeros will create three distinct intervals in the interval table
1 AnswerMathematics7 years agogiven the following data, find the equation to model the data?
(0,7),(2,10),(4,5),(6,0),(7,0),(8,3
1 AnswerMathematics7 years agoAdvanced functions question?
An open-top box can be made from a sheet of aluminum measuring 50 cm by 30 cm by cutting congruent squares from the four corners and folding up the sides.
The Volume Function of this box is: x(30-2x)(50-2x)
1. Determine the range of side lengths that are possible for each square that is cut out and removed that results in a volume greater than 4000cm^3.
1 AnswerMathematics7 years agosolve this inequality: -6x<x+4<12?
I can't seen to figure it out! Any help is appreciated.
Advanced functions
6 AnswersMathematics7 years agoadvanced functions (math) question?
suppose that f(x)=ax^2+bx+c. What must be true about the coefficients if f is an even function? Suppose that g(x)=ax^3+bx^2+cx+d. what must be true about the coefficients if g is an odd function?
4 AnswersMathematics7 years ago