4. Infer The crest of wave A has an amplitude of 5 cm. The trough of wave B has an amplitude of 2||
cm. If the crest of wave A combines with the trough of wave B, what will be the amplitude of
the resulting wave? Will the waves form a crest or a trough when they combine? They will in
my opinion

Ibelieve its a because an empirical formula usually has a ch in it your options are a or b

Well to my expert knowledge and my exquisite calculations i think the the negative ion # 412 is the key to sucess

Ans. : frostbite is when exposure to cold temperatures causes freezing to the skin or other tissues. it most commonly affects the hands, feet, and face. the longer areas are exposed to cold, typically the worse the frostbite. the water temperature used for rewarming a frostbitten part should be : (102 -105) f degrees.