Physics, 30.06.2019 01:30 chanahvanya
Aspace station that does not rotate cannot simulate gravity for its occupants. a)true b)false from within a rotating reference frame, the centrifugal force simulates gravity. a)true b)false on a rotating station, a person at the center of the station, in the axis, will be weightless. a)true b)false if astronauts had a floor to walk on, they would not feel weightless. a)true b)false for an astronaut walking around a spinning space station, she is pushing against the spinning floor, but the floor is not pushing back. a)true b)false
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Physics, 22.06.2019 03:40
Aprojectile is launched from ground level with an initial velocity of v 0 feet per second. neglecting air resistance, its height in feet t seconds after launch is given by s equals negative 16 t squared plus v 0 t. find the time(s) that the projectile will (a) reach a height of 192 ft and (b) return to the ground when v 0equals112 feet per second. (a) find the time(s) that the projectile will reach a height of 192 ft when v 0equals112 feet per second. select the correct choice below and, if necessary, fill in the answer box to complete your choice.
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Physics, 22.06.2019 05:00
Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.
Answers: 1
Physics, 22.06.2019 06:00
When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.
Answers: 2
Physics, 22.06.2019 19:30
Which of the following compounds would be primarily ionic? methane, ch4, ammonia nh3, calcium chloride, cacl2, or carbon dioxide, co2
Answers: 1
Aspace station that does not rotate cannot simulate gravity for its occupants. a)true b)false from w...
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