Que energia cinetica tiene un corredor de75kg que corre a una velocidad de 8 ms??

Which of the following changes to a pipe would increase the conductance by a factor of 12? 1.quadrupling the length and tripling the radius.2.reducing the length by a factor of and doubling the radius.3.tripling the length and reducing the radius by a factor of .4.reducing the length but a factor of and doubling the radius.

F500 j of energy were added to 1 kg of each of these samples, which would experience the least temperature increase?

Abearing is designed to a reduce friction b. support a load c.guide moving parts such as wheels, shafts and pivots d. all of the above