Recent content by benhou

@thorium1010 So I read this "relatedness tutorial" online: http://ess.nbb.cornell.edu/relatedness.html For every gene of a human, there are a set of two alleles and each combination gives a different trait. Let us look at an imaginary gene which can have the alleles R, R', r and r'. Let's...

This question started with the asian culture where cousins on the father's side is "closer" than cousins on the mother's side. If we have three siblings, brother 1, brother 2 and sister. let's say, b1, b2 and s3. They each have one child, c1, c2 and c3. The asian culture would be that c1 is...

So do I charge it at 30% or almost 0% and do I charge it to 70% or 100%?

Okay! Should I summarize? So, I should minimize the use of the laptop battery which according to the PC has a battery chemistry of "LION" (stands for Lithium ion?). But what if I have to use it? Do I charge it at 30% or almost 0%? How much do I charge it to? 70% or 100%?

Thank you! The low deformability of the "weapon" would transfer more energy to the target, and less to itself. It would make sense that the impact would be stronger with less deformable weapons. Also, the less the contact area the more the impact.

I have been trying to maximize the life time of my laptop battery. My approach to that is to almost use up the charge in the battery then immediately charge it. It is always annoying when the battery have 5% left, because that's when it hibernates automatically. Can I change the settings so it...

I have searched online and found that the power of a punch P=Fv, where F is the force of the punch and v is the speed. But in my mind it works like this: let's just say that only the arm speed is taken into account, then before impact, the energy of the arm traveling is E=(1/2)mv^2. That is how...

What happens when two objects of different charges come into contact? Do they distribute the charges per mass, volume, surface area or something else?

Try using conservation of energy. Another problem you had was this. you are to find tension and acceleration at 20o

Your problem occurred right here. Note that the ball is not moving in uniform speed, it drops down before it completes a loop. Therefore, it is not uniform circular motion and this equation does not work over here. Also note that naturally, tension force does not exceed the bigger external force...

Looks good. Be careful with the unit of period though. It should be T_{paris}=\frac {86400}{85380}\frac{seconds}{oscillation}

Oh, that might be hard to explain without a diagram. Maybe you need to include a diagram.

It is important that you list them out if you don't know how to start, like this: Here: x-direction: x_0=0 x_f=50 \Delta x=v\Delta t v_0= v_f \Delta t=? Now, how about if you list all the y-direction variables?

Are you trying to challenge my patience? If yes, please note that I am just trying to help. I am not getting paid from this. And maybe I should have been more clear. I meant "known variables". e.g. V_{y0}=0

ya, the given data. doesn't matter if in feet or metres.