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shakira11harvey6
01.08.2019 •
Physics
Aforce of 4.97 n acts on a(n) 4.9 kg object for 20.6 s. what is the object's change in momentum? answer in units of n · s.
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Ответ:
p=4.97N*(20.6s)
p= 102.4 Ns
Ответ:
1:Submerged, the submarine can obtain neutral buoyancy. That means the weight of the submarine equals the amount of water it displaces. The submarine will neither rise nor sink in this state. To make the submarine rise again, compressed air is simply blown into the tanks forcing the seawater out.
2:a straight line that is tangent to its path at the moment the string breaks
3:For objects in uniform circular motion, the net force and subsequent acceleration is directed inwards. Circular motion requires a net inward or "centripetal" force. ... This demonstrates Newton's first law of motion. But if an unbalanced force is applied to the flat board, then the flat board will accelerate.