science homework help anyone???

Question

Please dont guess...i will give ten points to the first good one
2. Larger wings on a plane create what?
3. Why can a steel ship float?
4.what makes an object sink?
5. Buoyant force is _______ to the weight of the water is displaces.
6. How does pressure affect the flow of fluids?
9. What affects the amount of lift on an airplane's wing?
10. Where is atmospheric pressure be the greatest?
11.How does the design of a wing enable a plane to fly?
12. What does bernoulli's state(in your own words)
13.What does pascals principle state(in your own words)
14 Why do jet pilots wear pressurized suits?
15. Why does a tire expand when you pump air into it?
17. what is a hydraulic lift? how does it work?
20. Using Bernoulli's principle, what is net force?

Answer 1

2. Larger wings on a plane create more lift.
3. Steel ship float since they displace more water than their weight.
4. An object sink when it displaces less water than it weighs.
5. Buoyant force is __proportional__ to the weight of the water is displaced.
6. Pressure affect the flow of fluids creating a force differential.
9. Angle of attack, geometry, speed affect the amount of lift on an airplane's wing.
10. Atmospheric pressure is the greatest at the lowest place on Earth?
11.The air is forced to flow faster on top than on the bottom creating a lower normal pressure on top of the wing enable a plane to fly.
12. What does bernoulli's state(in your own words) see11.
13.What does pascals principle state(in your own words) "when there is an increase in pressure at any point in a confined fluid, there is an equal increase at every other point in the container"
14 The atmosphere is very thin up where jets fly this why do pilots wear pressurized suits (just in case the cabin gets decompressed)
15. Why does a tire expand when you pump air into it? (pressure inside is greater than outside see 6)
17. what is a hydraulic lift? how does it work? pascals principle P=constant F1=PA1 while F2=PA2 F1/A1=F2/A2
20. Using Bernoulli's principle, what is net force?