Which of the following is an example of an approximately neutral pH? baking soda

lemon juice

hand soap

pure water

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).

Observations show that interstellar clouds can have almost any shape and

Lightning is an example of what phenomenon? a release of a large amount of energyan absorption of a large amount of energya natural electric circuita natural electric current