If someone gives you a congratulatory pat on the back, whats is the action force?
a) the pat o...
Chemistry, 16.11.2019 09:31 treavonknorton
If someone gives you a congratulatory pat on the back, whats is the action force?
a) the pat on your back
b) the weight of the persons hand
c) your back pressing back on the pat
d) frictions between the person's hand and your back
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