Suppose we're on the top of the Tower of Pisa (or a larger version of it) with two identical cannonballs. We heat one up (say, to 200 degrees Celsius, or some other high temperature before it starts melting and deforming). Then we drop both. Which one will reach the ground first?
Subscribe to:
Post Comments (Atom)
classical mechanics - Moment of a force about a given axis (Torque) - Scalar or vectorial?
I am studying Statics and saw that: The moment of a force about a given axis (or Torque) is defined by the equation: $M_X = (\vec r \times \...
-
It is always told as a fact without explaining the reason. Why do two objects get charged by rubbing? Why one object get negative charge and...
-
cosmology - The difference between comoving and proper distances in defining the observable universe"The radius of the observable universe is estimated to be about 46.5 Gly." If I understand correctly, it means the most distant ob...
-
Everyone always talks about the efficiency of their appliances. I was wondering if everything was 100% efficient at heating its surroundings...
No comments:
Post a Comment