“anchor” points on a temperature scale are known as fiducial points.

a)true
b)false

Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest which is 21h (heavy hydrogen, m = 2.01 u).

Explain why electric current cannot exist if a current doesn't have a voltage source.

Which of these activities increases the amount of carbon in the atmosphere?