bodies Definition and 523 Threads

in male pronuclei and sperm pronuclei, they differ in formation because the male has an Y chromsome where female has both XX right? are there any other differences? and how do the first and second polar bodies differ in terms of their chrosome content?

Hi ! I'm trying to figure out what kind of initial conditions I should put in my program in order to have stable trajectories. Just to remind, The restricted problem of three bodies suppose that you've got two heavy masses in circular orbit around their common center of mass, and a...

Galileo’s law of falling bodies ?? hi everybody, I want to know about the mathematics of deriving this laws. or in another word I want to know how did he find it.. Ali

Can we find... Is it possible for us to find the universe point of origin based on location of cellestrella bodies? If so how? If not why?

I know this may be seen as a physics question and it is, but i am just looking for an explicit solution to falling bodies with air resistance. OK many of you are probably familiar with the equation for a body falling with air resistance. mdv/dt=mg-kv^2 I am not sure exactly how to...

I used atwoods machine to test the affect of mass on the speed of falling bodies. My research said objects fall at the same rate no matter their weight. When I tested this on Atwoods machine heavier masses fell faster. Can someone tell me why?

After seeing images from recent Tsunami in Asia and hundreds/thousands of human corpses lying all over the place, i just wonder how bad is stench of rotting dead bodies lying in warm climate like in Indonesia? Is it kind of like regular road kill or dead cow, or maybe the smell is...

Alright, I'm stuck on this problem. Two metal disks, Radius 1 = 2.5cm, Mass 1 = 0.8kg and Radius 2 = 5.0cm, Mass 2 = 1.6kg are wielded together and mounted on a frictionless axis through their common center. The first part asked what is the total moment of inertia of the two discs, which I...

hi our genetics teacher has asked us about possible functions of polar bodies (if they are unfunctional, why do not they fully disappear but limit their smallness in some way; etc) and I could only find some diagnostic usages of polar bodies and that their nuclei could be inserted into...

If there are two rigid bodies rotating, (known I) how can you compare their rotation? Example: If the object of moment of inertia I is spining at x rad/sec, and its I is changed to i, what is the new speed?

The following comes from Landau's Mechanics, pages 97 - 98. For a particle in a rigid body, v = V + W x r -- (1) where for some origin O of the moving body measured in the "fixed" system of co-ordinates, v = particle's velocity in body in the "fixed" system, V = velocity of O in "fixed"...

It is my understanding, that space time is expanding, and that gravitationally bound bodies will stay unaffected by this expansion while unbound bodies will. but is gravity the only force that can overcome this effect? could magnetic or electro static forces hold bodies in station? I do...

I'm having difficulty with the question, perhaps mainly because it is consists completely of unknowns, with little or no numbers. Help, in the form of steps to reach the proof would be much appreciated: 'A uniform ladder of mass M rests in limiting equilibrium with one end on a rough...

can anyone help me with this please...? :eek: How much pressure is needed to compress the volume of a steel block by 0.14 percent?

i'm working without my textbook and going by the some solutions that i have so i need some help 1) Two masses, m1 and m2, joined with a cord are dragged along the horizontal plane surface. the applied force is F=20N, mass m1=m2=3kg, and the acceleration is 0.50 m/s. what is the tension, T, in...

What do the polar bodies formed in oogenesis do?

im supposed to show why angular momentum is conserved in a rotating body with no external torques or forces acting on it. i know to use the I_1*w_1=I_2*w_2 where I is the moment of inertia of the object in motion and w is the angular speed. My qu estiosn are: which equation for Inertia...

Newton says: “A body accelerates proportionally with the force it carries and reciprocally to its mass”. His equation is: \frac {F}{m} = \frac {d^2x}{dt^2} So, what Newton does is consider the position changing while time goes by and while the force and mass remain constant. Conclusively, if...

This was a question on one of our past exams, and our professor said it was really simple. Of course, he also said that only one person got it of the 400-some people who took the course, possibly because the scenario was very unusual. Here's what I've done so far: \overline{I} = 1.686 kg...

Can somebody help me with this problem, it is probably pretty easy but I can not seem to think of how to solve it. A object initially located at point A on the rim of a grinding wheel rotating about a horizontal axis. The object is dislodged from point A when the diameter through A is...

At the centre of the sun, gravity is in equilibrium, as with in the centre of the earth. As you go towards the centre of the Earth you will get lightr and lighter as the force of gravity pulling you upwards above you gets larger and larger slowly decreasing the net force of gravity inflicted...

I got up this morning, and decided I was going to try to calculate this. So here is what I asked. Given 2 stationary bodies, starting some distance apart, of different mass, where would they collide in respect to one another? I tried using Newton's gravity formula to calculate the force of...

Two bodies are falling with negligible air resistance, side by side, above a horizontal plane. If one of the bodies is given an additional horizontal acceleration during its descent, it 1. has the vertical component of its velocity altered 2. strikes the plane at the same time as the...