Physics, 11.01.2020 03:31 princesskhj6932
Aball is thrown vertically upwards with a velocity v and an initial kinetic energy ek. when half way to the top of its flight, it has a velocity and kinetic energy respectively of (a) v/square root 2, e/2 (b) v/4, e/2 or (c) v/2, e/square root 2 ?
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Physics, 21.06.2019 17:10
The “death throes” of stars are amongst the most complex phenomena in all of astronomy, and the “corpses” of stars amongst the most energetic and exotic objects in existence. beginning at the end of the core helium fusion stage in a star’s life, describe in detail the post-main sequence development of both (a) a 1.0 solar mass star, and (b) a 25.0 solar mass star. in what significant ways do they differ? what role does each of these types of stars play in the "star-gas-star" cycle and the evolution of chemical elements in our galaxy?
Answers: 1
Physics, 21.06.2019 19:00
Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied. true or false
Answers: 1
Physics, 22.06.2019 14:40
Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion
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Physics, 23.06.2019 07:10
50.)the diagram below represents the wave fronts produced by a point source moving to the right in a uniformmedium. observers are located at points a and b.compared to the wave frequency and wavelength observed at point a, the wave observed at point b has a(1) higher frequency and a shorter wavelength(2) higher frequency and a longer wavelength(3) lower frequency and a shorter wavelength(4) lower frequency and a longer wavelength
Answers: 3
Aball is thrown vertically upwards with a velocity v and an initial kinetic energy ek. when half way...
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