Impulse is equal to change in momentum of an object. The only way to change an object's momentum is to apply a force for certain amount of time.
Impulse is calculated as follows: Δp = F * t
Put your values in the right spots and solve for F. In this case since F is multiplied by Time, you will divide both sides by the time to find your answer.
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Answer:A
Explanation: search for a gap in traffic and adjust your speed to the speed of the traffic.
Answer:
d = 2*0.87 = 1.75 cm
Explanation:
by using flow rate equation to determine the speed in larger pipe



= 591.10 cm/s
= 5.91 m/s
by Bernoulli's EQUATION


solving for v2
v2 = 10.53 m/s
diameter can be determine by using flow rate equation



r = 0.87 cm
d = 2*0.87 = 1.75 cm
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