Physics, 20.09.2019 18:20 eelebron0905
Suppose you are navigating a spacecraft far from other objects. the mass of the spacecraft is 2.0 104 kg (about 20 tons). the rocket engines are shut off, and you're coasting along with a constant velocity of ‹ 0, 23, 0 › km/s. as you pass the location ‹ 4, 5, 0 › km you briefly fire side thruster rockets, so that your spacecraft experiences a net force of ‹ 6.0 105, 0, 0 › n for 24.5 s. the ejected gases have a mass that is small compared to the mass of the spacecraft. you then continue coasting with the rocket engines turned off. where are you an hour later? (think about what approximations or simplifying assumptions you made in your analysis. also think about the choice of system: what are the surroundings that exert external forces on your system? )
Answers: 3
Physics, 22.06.2019 18:30
Against his financial advisor's advice, frank has decided to invest his money in some risky stocks because he once made quite a bit of money in the stock market. his decision illustrates a. the representativeness heuristic b. overconfidence c. the availability heuristic d. confirmation bias select the best answer from the choices provided
Answers: 3
Physics, 22.06.2019 20:30
Light from two different sources are incident upon the same side of a polarizing filter. light from one source is polarized with total intensity ip, while light from the other source is unpolarized with total intensity iu. as you rotate the polarizing filter through 360 degrees, the intensity of the transmitted light on the other side varies by a factor of 9. what is the relative intensity of the initial polarized source to the unpolarized source, or ip/iu?
Answers: 2
Physics, 22.06.2019 20:30
Atypical jetliner lands at a speed of 146 mi/h and decelerates at the rate of (10.4 mi/h)/s. if the jetliner travels at a constant speed of 146 mi/h for 1.5 s after landing before applying the brakes, what is the total displacement of the jetliner between touchdown on the runway and coming to rest?
Answers: 2
Suppose you are navigating a spacecraft far from other objects. the mass of the spacecraft is 2.0 10...
Mathematics, 10.02.2020 23:15
Mathematics, 10.02.2020 23:15
Mathematics, 10.02.2020 23:15