describe the different spheres of earth. what is each one made up of?
which sphere is the la...
describe the different spheres of earth. what is each one made up of?
which sphere is the largest and what are the layers of that one?
how do these interact with one another (provide at least 2 specific examples)?
how do humans interact or affect the different spheres (give at least 2 examples)?
(answer all questions correctly and i will give 23 points and a
Answers: 1
Physics, 22.06.2019 00:30
Consider an ordinary, helium-filled party balloon with a volume of 2.2 ft3. the lifting force on the balloon due to the outside air is the net resultant of the pressure distribution exerted on the exterior surface of the balloon. using this fact, we can derive archimedes’ principle, namely that the upward force on the balloon is equal to the weight of the air displaced by the balloon. assuming that the balloon is at sea level, where the air density is 0.002377 slug/ft3, calculate the maximum weight that can be lifted by the balloon. note: the molecular weight of air is 28.8 and that of helium is 4.
Answers: 2
Physics, 22.06.2019 07:00
The cerebellum controls? thirst sensations sleep-wake cycles hand-eye coordination heart rate and pulse
Answers: 1
Physics, 22.06.2019 07:50
The ratio of lift to drag l/d for a wing or airfoil is an important aerodynamic parameter, indeed, it is a direct measure of the aerodynamic efficiency of the wing. if a wing is pitched through a range of angle of attack, l/d first increases, then goes through a maximum, and then decreases. consider an infinite wing with an naca 2412 airfoil. estimate the maximum value of l/d. assume that the reynolds number is 9x10^6.
Answers: 2
Physics, 22.06.2019 12:00
Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? how far will the football travel before it lands?
Answers: 1
Mathematics, 11.09.2020 09:01
English, 11.09.2020 09:01
Mathematics, 11.09.2020 09:01
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Mathematics, 11.09.2020 14:01
Mathematics, 11.09.2020 14:01
Mathematics, 11.09.2020 14:01
Mathematics, 11.09.2020 14:01
Mathematics, 11.09.2020 14:01
Mathematics, 11.09.2020 14:01
Mathematics, 11.09.2020 14:01
English, 11.09.2020 14:01
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Mathematics, 11.09.2020 14:01