9. Which of the following has the greatest momentum?
O a. a 4.0 kg bowling ball moving at 2.0...
Physics, 23.02.2021 07:50, lacourboud20005
9. Which of the following has the greatest momentum?
O a. a 4.0 kg bowling ball moving at 2.0 m/s
O b. a 0.15 kg baseball moving at 10.0 m/s
c. a 1.6 x10^3 kg car moving at 0.5 m/s
O d. a 0.02 kg bullet moving at 950 m/s
Answers: 1
Physics, 22.06.2019 07:50, singhmanny3526
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 11:40, johanperezpere51
Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?
Answers: 3
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