8. A spherical rubber balloon inflated with air is heldstationary, with its opening, on the west side, pinchedshut. (a) Describe the forces exerted by the air insideand outside the balloon on sections of the rubber(b) After the balloon is released, it takes off towardthe east, gaining speed rapidly. Explain this motionin terms of the forces now acting on the rubber.(c) Account for the motion of a skyrocket taking offrom its launch pad

(a)According to molecular theory, the (particles) air inside the balloon pushes outward on each…

Answered: 8. A spherical rubber balloon inflated…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Lurking alligators. An alligator waits for prey by floating with only the top of its head exposed, so that the prey cannot easily see it. One way it can adjust the extent of sinking is by controlling the size of its lungs. Another way may be by swallowing stones (gastrolithes) that then reside in the stomach. The figure shows a highly simplified model (a "rhombohedron gater") of mass 125 kg that roams with its head partially exposed.The top head surface has area 0.180 m2. If the alligator were to swallow stones with a total mass of 1.8% of its body mass (a typical amount), how far (in mm) would it sink? Number i Units
Statics 1 IYGBX A helium balloon floats at the end of a string. The net lift force (the buoyancy force minus the weight) on the balloon is 33_N. If the tension in the string exceeds 50 N of force, the string will break. How great a force can a horizontal wind exert on the balloon before the string breaks? Flift Fwind 24. Fwind ABC 1--1 44.69 N 39.32_N 41.29_N Tstring D. 46.76_N 42.63_N 37.56 N DEE E. F.
A 79 kg person stands on snowshoes. If the total area of the 2 snowshoes is 0.44 m2 , what is the pressure on the snow? Use g = 9.8 m/s2 Calculate answer to two decimals.
The inside of the space shuttle is pressurized to 1.01x105 N/m2 while in deep space (outside pressure = 0). What is the outward force acting on the windshield of the craft if the windshield has a surface area of 0.5 m2? a) 5.05 x 10^5 N b) 1.01 x 10^5 N c) 2.02 x 10^5 N d) 4.04 x 10^5 N If you could draw the free-body diagram that would help me learn. Thank you,
3. A crane lifts a steel submarine (density = 7.8 x10^3 kg/m3) of mass 20,000 kg. What is the tension in the lifting cable (1) when the submarine is submerged, and (2) when it is entirely out of the water? Ans: (1) 1.7 x 10^5 N, (2) 2.0 x 10^5 N
In this example, we are going to take a look at a different type of friction, one that is not described by equations for static-friction force and kinetic-friction force. When an object moves through a fluid (such as water or air), it exerts a force on the fluid to push it out of the way. By Newton's third law, the fluid pushes back on the object, in a direction opposite to the object's velocity relative to the fluid, always opposing the object's motion and usually increasing with speed. In high-speed motion through air, the resisting force is approximately proportional to the square of the object's speed v; it's called a drag force, or simply drag. We can represent its magnitude FD by FD=Dv2, where D is a proportionality constant that depends on the shape and size of the object and the density of air. When an object falls vertically through air, the drag force opposing the object's motion increases and the downward acceleration decreases. Eventually, the object reaches a terminal…
QUESTION 8 A block of wood with a weight of 2 N floats on a pond. What volume of water will it displace? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial 10pt x? X2 ABC - QUESTION 9 Click Save and Submit to save and submit. Click Save All Answers to save all answers. esc
What is the total downward atmospheric force on the top of a 0.24 m by 0.29 m book lying on a table? Why doesn't this force break the table?
A 1.6 m long Steel Piano Wire has a diameter of 6.20 cm. How great is the tension in the wire it steel.
A 73 kg person stands on snowshoes. If the total area of the 2 snowshoes is 0.35 m2 , what is the pressure on the snow? Use g = 9.8 m/s2 Calculate answer to two decimals.
55. Subject :- Physics
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