A rocket begins at rest in outer space. Its thrusters ignite and it accelerates at 7 m/s2 for 41 s. After that, the thrusters shut off and the rocket coasts for an additional 84 s. How far does the rocket travel during both of these time periods combined, in m? (Please answer to the fourth decimal place - i.e 14.3225)
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A rocket begins at rest in outer space. Its thrusters ignite and it accelerates at 7 m/s2 for 41 s. After that, the thrusters shut off and the rocket coasts for an additional 84 s. How far does the rocket travel during both of these time periods combined, in m?
(Please answer to the fourth decimal place - i.e 14.3225)
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- Here we go again (yes, this set of questions is starting to feel like Groundhog Day). You AGAIN wake up in a strange room, and this time you drop a ball from a height of 2.16 m, and observe that it hits the floor 0.199 s after you drop it. In this case you suspect you are in deep space, far from any planet or star, and that your rocket is accelerating due to the push of its own engines under the floor. In this case, what must the acceleration of your rocket be? 54.5 m/s^2 54.5 m/s^2 174.6 m/s^2 109.1 m/s^2Here we go again (yes, this set of questions is starting to feel like Groundhog Day). You AGAIN wake up in a strange room, and this time you drop a ball from a height of 2.33 m, and observe that it hits the floor 0.276 s after you drop it. In this case you suspect you are in deep space, far from any planet or star, and that your rocket is accelerating due to the push of its own engines under the floor. In this case, what must the acceleration of your rocket be?The Moon is about 3.8 ✕ 108 m from Earth. Traveling at the speed of light, 3.0 ✕ 108 m/s, how long does it take a laser beam to go from Earth to the Moon and back again (in s)?
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