Physics

Physics, 14.07.2019 02:00, svlext

Crews at the international space station are researching the effects of the weightlessness of space on a. human body b. cats and dogs c. other planets

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Physics, 23.06.2019 00:10, Tiredd7838

An astronaut floating in space is trying to use her jetpack to get back to her space station, but she is being pulled away by a nearby planet, as shown in the image below. her jetpack provides a constant thrust of 310 n. if she angles her jetpack in such a way that it cancels out the vertical force due to the planet's gravity, what is her net horizontal force? thaud 487 o a. 54.8 n toward the space station o b. 212.9 n toward the space station o c. 185.2 n toward the space station o d 956 n toward the space station

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Physics, 17.09.2019 02:00, Wolfzbayne

Popular culture tells us that it’s very cold in space, but is that really true? on earth, most everyday objects cooldown by losing energy through conduction and convection. but in the vacuum of space, conduction and convection can’t happen, so the only way the international space station can lose heat is through radiation. exposure to rays from the sun, energy transfers from the machinery and the body heat from the astronauts themselves are continually heating up the space station, so how do they cool it down? research the international space station and how its cooling system works. how is waste heat removed from the space station? can you think of another way that this could be accomplished? would you want to live and work aboard the international space station? why or why not? what do you think would be the best thing about being on the international space station? what do you think would be the worst thing?

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Biology, 25.09.2019 16:00, Valfrutos2912

1.) which of these studies is most likely performed by remote observation? a a study of earth's oceans by scientists on a research boat b a study of the effects of weightlessness on humans in a space station c a study of a planet that orbits a star other than the sun d a study of the composition of rocks returned from the moon by astronauts 2.) a space shuttle is a reusable spacecraft that launches with the aid of rocket boosters and liquid fuel. a true b false 3.) scientists use spacecraft to study a variety of objects in space. what benefits do unmanned spacecraft provide to space scientists? a instruments can replace analysis by human scientists. b instruments require more control over the environment than human space flight does. c instruments can be sent places humans cannot go. d instruments never commit errors.

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