Aspaceship moving at a speed of 0.6c is transporting a michelson-morley apparatus that uses 5 ghz radio waves. the two interferometer arms are parallel to and perpendicular to the spaceship’s direction of motion and both arms have reflectors an identical distance d apart. (a) (7 pts) if the ether theory is correct, for what value of d (if any) will two radio waves emitted at the same time into each arm return ½ wavelength out of phase? (b) (3 pts) if special relativity is correct, for what value of d (if any) will two radio waves emitted at the same time into each arm return ½ wavelength out of phase?

force tends to be low and long diustance masses are high

bacteria that live on the ocean floor are sustained by phytoplankton. phytoplankton, microscopic marine photosynthetic organisms, have a vastly significant role to play not only in the marine food web of which they’re part of, but also on a more global scale. despite their infinitely small size in comparison to other marine organisms, these tiny creatures occupy an immensely important ecological niche: they are the foundation of the marine food web, and as primary producers, play key roles in supporting all other organisms in the marine environment, as well as in the regulation of the earth’s climate through the sequestration of carbon, oxygen production, and other related processes. phytoplankton account for roughly half of all global primary productivity; therefore, their significance extends far beyond the marine environment alone. there is an intriguing sense of irony in the realization that these tiny living beings that often live out their existence unnoticed and undetected by the rest of the world, have such a far-reaching impact on the lives of virtually all other living organisms on the planet, particularly on those in the marine environment. the world that we have become accustomed to has been and is continuously shaped by the workings of these miniscule yet vital “plants of the sea”.

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explanation:

to push or pull an object in a certain direction is known as force. a force in moving an object from one place to another.

force depends on the mass of an object. so, more is the mass of an object more will be the force required to move the object.

thus, we can conclude that the use of force to move an object is push or pull.