Recent content by AndyK

Well What are you asking? Induction?Flux?Field?or Eddy currents? Although they are all related they have different definitions. You basically said, I do not understand this whole sources of magnetic fields chapter can someone explain it to me... Flux is like flow, electromagnetic field...

Yeah show your calculations, and also a clarification to my post, when I said 0 acceleration, actually there is acceleration which is gravity about -9.8m/s^2 if you have a standard coordinate system. I was trying to say that the object is not getting any positive acceleration after the 5 second...

You can also solve the energy way as tom said since you have M,V,g, and air resistance is negligible since they did not mention it. But the kinematic way is the first way you learn in the class and a month or so later the energy equation kicks in, so I am not sure if you have covered it yet.

Another way you can go with a question like this is the old school kinematic equations. You can cut the problem in half. One half being from the beginning to 5 seconds and the second half being after the 5 second mark. If you calculate the distance between the platform and ground at 5 seconds...

What you are stating is completely different that what I meant. I was trying to give an example of how undetected worlds, dimensions, particles, events etc... can be disregarded or acted upon as they do not exist since they have never been discovered. I never meant to say that there is a finite...

Right.. the reason I gave the lettuce example is to distinguish a difference between two objects mainly their mass and their mass still being important on the damage they take even if they are in the vacuum of space. I mean if you want to neat pick it you can say that and the leaf of lettuce...

I don't understand why time travel is impossible. Time travel is possible and some human beings already went into the future. It is calculated that astronaut who spent a great deal of time orbiting the Earth in the international space station would be traveling to the future by a very minuscule...

Yes Make sure you have a coordinate system setup and label your deceleration as negative acceleration. F==m(-a). Depending on your coordinate system, initial conditions etc.. force may still come up positive but that's not the point.

Your drawing is correct though. It is not wrong, it is just incomplete. It suggests that the body is only being attracted to the other side of the earth, directly the crust. Technically you are being drawn towards the center of the Earth much harder than the other side of the Earth because of...

Going back to the original post, in this collision the bullet may enter the 80kg body and travel with it or just pass through it. In this case the kinetic energy of the bullet is being applied to a very small area on the human body, specifically its tip. The pressure is applied to the skin and...

It is impossible to answer this question with a yes or no since the question it self depends on many variables. The universe itself is not observance dependent. It would have existed without us, since it shows all the signs of its own existence without depending anything human related. This is...

GMm ----- or (GMm)/r^2 r^2 is the formula for the gravitational force. G is the gravitational constant, M is the mass of one object, m is the mass of the other object and r is the distance between the two. r is measured from the center of mass of the both objects so my r equals Superstrings...

He does not look slim at all... This very joke here shows that I will never get a phd in Physics :)