Physics, 23.10.2020 15:40 brianamitzel1013
The second hand on a watch is 3.0 cm long and rotates smoothly. What is the speed of the tip of the hand?
Answers: 3
Physics, 21.06.2019 21:00, jjxt126
A150 w lamp emits light of wavelength 590 nm uniformly in all directions. what is the photon flux (photons per unit area per unit time) on a small screen at a distance 2.3 m from the lamp? assume the photons are uniformly distributed over the surface of a sphere of radius 2.3 m.
Answers: 2
Physics, 23.06.2019 12:30, smithjirrah
How is sound is different from music how loundness od sound mention some ways to reduce
Answers: 1
Physics, 23.06.2019 12:30, maskoffvon
Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question
Answers: 3
Physics, 23.06.2019 17:00, goat46
Asoccer ball of mass 0.43 kg is rolling with velocity < 0, 0, 1.8> m/s, when you kick it. your kick delivers an impulse of magnitude 2.7 nâ·s in the direction. the net force on the rolling ball, due to the air and the grass, is 0.22 n in the direction opposite to the direction of the ball's momentum. using a time step of 0.5 s, find the position of the ball at a time 1.5 s after you kick it, assuming that the ball is at the origin at the moment it is kicked. use the approximation . (express your answer in vector form.) < entry field with incorrect answer 12.97 , entry field with correct answer 00 , entry field with incorrect answer 2.7 > m
Answers: 3
The second hand on a watch is 3.0 cm long and rotates smoothly. What is the speed of the tip of the...
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