Physics, 19.08.2019 09:30 sanaiajohnson56
Identical twins kate and karen are rowing their boat on a hot summer afternoon when they decide to go for
a swim. kate, whose mass is 45 kilograms, jumps off the front of the boat at a speed of 3.00 m/sec. karen
jumps off the back at a speed of 4.00 m/sec. if the 70-kilogram rowboat is moving at 1.00m/s when the girls
jump, what is the speed of the rowboat after the girls jump?
Answers: 1
Physics, 21.06.2019 21:30, galaxyworld36
Janelle made a hypothesis bout the uneven temperatures inside her house during winter. she believes that 50% of the ducts are blocked and she plans to investigate. if she wants to prove her hypothesis using scientific processes what should she do next?
Answers: 2
Physics, 22.06.2019 11:30, tommyaberman
You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?
Answers: 2
Physics, 22.06.2019 12:10, anaroles04
Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?
Answers: 2
Physics, 22.06.2019 16:00, trevorhenyan51
Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?
Answers: 1
Identical twins kate and karen are rowing their boat on a hot summer afternoon when they decide to g...
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