The Neutron-to-Proton Ratio. Hope this helps Sorry if it's wrong I'm a little rusty on Physics.
B, heat, is the correct answer. Heat is represented by a capital q in thermodynamic equations.
Explanation:
the weight of the people inside the bus
Answer: friction is used when 2 and 2 things mix and come together but normally friction slows things down but when buttering a pan it doesnt slow down