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anonymous
 one year ago
A rectangular barge 7 m long and 2 m wide floats in fresh water. How much will the barge sink when loaded with 600 kg of sand? Show all calculations leading to an answer.
anonymous
 one year ago
A rectangular barge 7 m long and 2 m wide floats in fresh water. How much will the barge sink when loaded with 600 kg of sand? Show all calculations leading to an answer.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@sleepyjess @Michele_Laino

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0here we have to apply the Principle of Archimede

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I think the answer is 40mm"

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Water Density = 1,000kg/m^3 600/1,000= .6m^3 Area = 15m^2 V= (L)(W)(D)= .6^3 D= .6m^3/15m^2 = .04m = 40mm"

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0If I call with "h" the sinking level, then we can write: \[\Large LWh\delta g= Mg\] where: L is the length of the barge, W is the width of the barge \delta is the density of water g is gravity M is the mass of the loaded sand

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0is 600 Kg the mass of the sand ot its weight?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0I think that M=600 Kg is the mass of the sand

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0so we get: \[\Large h = \frac{M}{{LW\delta }} = \frac{{600}}{{7 \times 2 \times 1000}} = ...\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the depth of sinking?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0I got: \[\Large h \cong 43\;mm\]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0so, you are right!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0When a steadilyflowing gas flows from a largerdiameter pipe to a smallerdiameter pipe, what causes the pressure in the smaller pipe to drop? Use 3 – 4 complete sentences to explain your answer.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0do you know this? lol

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0if we can neglect all loss of energy of the gas, then we can apply the Principle of Bernoulli furtermore we can apply the equation of continuity

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@kaitlynmcurtis Bernoulli's principle states that the same V/s of fluid flowing will remain the same. If the radius of a pipe drops, then then the fluid has to travel faster through the pipe in order to maintain the same Volume per second... the only way the fluid can move faster is if there is a pressure drop from the larger pipe into the smaller pipe. Hope the helps!

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0for example, the equation of continuity is: \[\Large {A_1}{v_1} = {A_2}{v_2}\] dw:1434221385263:dw A is the cross sectional area v is the speed of the gas

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0so when the cross sectional area is minimum, then the speed of the gas is maximum

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0I have assumed that the density of our gas doesn't change as we go from section #1 to section #2

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0next the Principle of Bernoulli is: \[\Large gz + \frac{P}{\delta } + \frac{{{v^2}}}{2} = const\] where g is gravity, and z is the geodesic height

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I think I got this one done, could you guys help me with another? @cramos725 @Michele_Laino

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.0dw:1434221789810:dw
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