Why don’t action and reaction forces on a person swimming in water cancel each other out? . a. because they act on the same object. b. because they act on different objects. c. they do if the amounts of force are different. d. cannot be determined without the specific amount of force.

Action and reaction forces don’t cancel each other out on a person swimming in water cancel because they act on different objects. The correct answer between all the choices given is the second choice or letter B. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question. 

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer