Find the potential difference required to pass a current of 0.2a in a wire of resistance 20ohm

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! *

How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?

Based on the concept of the wave-like nature of light, huygens' theory of light postulates that the more light was "bent" by a substance the slower it would move while traversing across that substance. a) deflection b) interference c) refraction d) resonance