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please help with the following physics questions, im having such a hard time and would appreciate your help and assistance. thank you in advance. 010

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please help with the following physics questions, im having such a hard time and would appreciate your help and assistance. thank you in advance.

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010 (part 1 of 2) 2.0 points If wind blows at 32.8 m / s over the roof of your house, what is the pressure difference at the roof between the inside and outside air? Use an air density of 1.29 kg / n13 . Answer in units of Pa. 011 (part 2 of 2) 2.0 points What net force does this pressure difference produce on a roof having an area of 116 n12 ? Answer in units of N. 017 (part 1 of 2) 2.0 points Calculate the mass ow rate of blood (of den- sity 1 g / cm3) in an aorta with a cross-sectional area of 2 cm2 if the ow speed is 40 cm / s . Answer in units of g / s. 018 (part 2 of 2) 2.0 points Assume that the aorta branches to form a large number of capillaries with a combined cross-sectional area of 3100 cm2 . What is the ow speed in the capillaries? Answer in units of mm/s. 019 (part 1 of 2) 2.0 points A force F 2 F3: %| ij acts on a particle that undergoes a displacement of 3' = 3m El 3y j whereF$=8N,F =3 N, s$=6m, and 8y : 1 m. Find the work done by the force on the particle. Answer in units of J. 020 (part 2 of 2) 2.0 points Find the angle between 13" and 3'. Answer in units of 0. 021 (part 1 of 3) 2.0 points A rope applies a horizontal force of 200 N to pull a crate a distance of 2 m across the oor. A frictional force of 110 N opposes this motion. What is the work done by the force applied by the rope? Answer in units of J. Your answer must be within i 3.0% 022 (part 2 of 3) 2.0 points What is the magnitude of the work done by the frictional force? Answer in units of J. Your answer must be within :I: 3.0% 023 (part 3 of 3) 2.0 points What is the total work done on the crate? Answer in units of J. Your answer must be within :I: 3.0% 016 2.0 points A thin 1.4 mm coating of glycerin (with coef- ficient of viscosity 1) = 1.5 N - s/m2) has been placed between two microscope slides of width 1.1 cm and length 4 cm. Find the force required to pull one of the mi croscope slides at a constant speed of 0.31 m / s relative to the other. Answer in units of N

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