Air flows through the tube shown in figure p64.
How much force is exerted on the roof.
C lifting force on the roof p a.
Calculate the force exerted by the hail on the roof.
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Air flows through the tube shown in figure p63 at a rate of 1200 cm 3 s.
Use 1 28 kg m 3 for the density of air.
What is the pressure difference.
A is the pressure above the roof higher or lower than the ressure inside the house.
A hurricane wind blows across a 7 50 m times 11 2 m flat roof at a speed of 190 km hr.
B what is the pressure difference.
D if the roof cannot withstand this much force will it blow in or blow out.
Is the air pressure above the roof higher or lower than the air pressure inside the house.
A is the air pressure above the roof higher or lower than the pressure inside the house.
If the roof cannot withstand the force will it blow in or out.
Expert answer 100 1 rating previous question next question transcribed image text from this question.
Inner force if of 9 6 10 6 n.
Assume that air is an ideal fluid.
Outer force of 95 1 01000 10 5 9 6 10 6 n.
If the roof cannot withstand this much force will it blow in or blow out.
What is the height h of mercury in the right side of the u tube.
If the roof can t withstand this much force will it blow in or blow out.
Pressure inside the house is still air at 101325 pa.
How much force is exerted on the roof.
A is the air pressure above the roof higher or lower than the pressure inside the house.
If the roof cannot withstand this much force will it blow in or blow out.
Net force nf of if 9 6 10 6 9 6 10 6 0.
A hurricane wind blows across a 6 0mx15 0m flat roof at a speed of 130 km h.
P 1 2 1 29 33 33 2 716 n m2 or pa pressure above the roof 101325 716 100 609 pa.
How much force is exerted on the roof.
How much force is exerted on the roof.
C how much force is exerted on the roof.
Unlike rain hail usually does not come to rest after striking a surface.
Show transcribed image text.
Explain what is the pressure difference.
13 56 problem a hurricane wind blows across a 5 00m x 19 0m flat roof at a speed of 110 km hr.
A hurricane wind blows across a 6 0 m x 15 m flat roof at a speed of 130 km hr.
Use 1 28 kg m 3 for the density of air.
C how much force is exerted on the roof.
D if the roof cannot withstand this much force will it blow in or blow.
Hail comes straight down at a mass rate of m δt 0 030 kg s and an initial velocity of v0 16 m s and strikes the roof perpendicularly.
Homework equations not sure the attempt at.
A hurricane wind blows across a 6 00 m times 15 0 m flat roof at a speed of 190 km hr.
How much force is exerted on the roof.
