Physics, 30.01.2020 05:59 kevinvalencia01
Compared to a blue star in the same local cluster, the surface temperature of a red star is a) greater. b) the same. c) lower. d) not consistently any of these
Answers: 2
Physics, 21.06.2019 21:30
In what direction does the medium move relative to the direction of the wave? explain.
Answers: 3
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 14:00
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: 1
Physics, 22.06.2019 16:00
What part of the ear is names after tools, such as the hammer and the anvil?
Answers: 1
Compared to a blue star in the same local cluster, the surface temperature of a red star is a) great...
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