Recent content by SAT2400

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    Cell signaling: induction vs constitutive signaling

    HELP!((BIOLOGY)) Cell signaling...induction and constitutive signaling? Homework Statement A cell secretes a substance that instructs a neighboring cell to adopt cell fate X. What term describes this process? A. asymmetric division B. Apoptosis C. Induction D. Retraction E...
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    Meselson-Stahl experiment banding patterns across replication hypotheses

    Homework Statement In the Meselson-Stahl experiment, which banding pattern expected by which hypothesis/es would be the same? A. A single, medium-density band after the first replication is expected by both the semi-conservative and the dispersive hypotheses. B. A single, medium-density...
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    Why Does DNA Replication Require a Lagging Strand?

    1 hard(?!) Biology Question!HELP! :/ Homework Statement If life had been "intelligently" design, and if an important design principle is conservation of material and efficiency of process, we would not expect DNA replication to involve the crazy, complex, intricate, Byzantine mechanism for...
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    Why Does Phylogeny Predict a Hierarchical Classification System?

    1 Question! (Phylogeny) HELP PLEASE~! Homework Statement QUestion: Phylogeny predicts a hierarchical classification system because v Homework Equations related to descendents and ancestors.. The Attempt at a Solution A talks about structural form, C is like naming? either C or E is the...
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    Finding density to identify unknown liquid and calculating volume of water

    is the answer for 1 acetone? is the answer for 2 25.19ml? I know the formula already;;;;g/ML
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    Finding density to identify unknown liquid and calculating volume of water

    g/mL =density =mass/volume? intensive physical property! please help!
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    Finding density to identify unknown liquid and calculating volume of water

    HELP! 1 Density-volume question!??URGENT! Homework Statement 1.An unknown liquid has a mass of 26.366g and volume of 25.24 x10^-3 liters at 25'C. Identify the likely substance from the following information. Substance tricholorobenzene (density:1.454g/mL) acetone (density: 1.049g/mL)...
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    Infinite Series ?COnverge or Diverge

    could you please show me?thanks
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    Infinite Series ?COnverge or Diverge

    Umm, I am not supposed to use those tests... Is there any other method??
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    Infinite Series ?COnverge or Diverge

    Infinite Series!??COnverge or Diverge Homework Statement 1. ∑(infinity, k=1) 5k^(-3/2) 2. ∑(infinity, k=1) 1/(k+3) Homework Equations converge or diverge The Attempt at a Solution 1. converges p=3/2... 5/(infin)=> 0 2. diverges p=1 I still don't get why 2 diverges? 1 converges...
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    Minimum energy uncertainty from lifetime using uncertainty principle

    2. answer is 5.3 x10^-28J..I don't know how to get this answer using the equation above. I used h=6.63 x10^-34Js and .1x10^-6s?...but didn't get the right answers..
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    Minimum energy uncertainty from lifetime using uncertainty principle

    ok. but h=6.63x10^-34Js? right? 26ns should converted into what?
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    Solving LASER Problems with Energy Differences and Wavelength Calculations

    ahhh got it! THank you! :) Can you please answer my other questions??(uncertainty problems?)
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    Solving LASER Problems with Energy Differences and Wavelength Calculations

    I already knew the equation...but I was not sure if I used the right numbers,,,?? h=6.63x10^-34Js c= 3x10^8m/s whatelse?? thanks
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    Solving LASER Problems with Energy Differences and Wavelength Calculations

    c=3x10^8 right? can you explain more...??tHanks
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