An 11.5 kg sled is pulled with a 37.0 N force at a 40.0° angle, across ground where
MK = 0.110.
What is the force of friction on the sled?
[?] N

What term do psychologists use to designate our personal awareness of feelings, sensations, and thoughts?

The atoms in a nickel crystal vibrate as harmonic oscillators with an angular frequency of 2.3 × 1013 rad/s. the mass of a nickel atom is 9.75 × 10-26 kg. what is the difference in energy between adjacent vibrational energy levels of nickel? (h = 6.626 × 10-34 j • s, , 1 ev = 1.60 × 10-19 j)

A1.5m wire carries a 2 a current when a potential difference of 52 v is applied. what is the resistance of the wire?