Question 2 (3 points) Which of the following is the main difference between speed and velocity?
A)There is no difference between speed and velocity.

B)Velocity has both speed and direction.

C)There is no difference between speed and velocity.

D)Speed is constant.

If the temperature were raised very high, classically what would we expect the heat capacity per object to be for this one-dimensional system? give a numerical value. chigh t = __ j/k/object (one reason for the discrepancy is that the high-temperature limit assumes that the number of oscillators is large (n > > 1), which is not the case in this tiny system.)

Ineed asap! list 3 examples in which friction us or makes things easier in our daily life. explain the effect of friction for each. *make sure you explain the effect of friction for each example! *

Which word expression describes how much to calculate pressure