Physics, 31.10.2019 04:31 kamkam5791
Using a rope that will snap if the tension in it exceeds 387 n, you need to lower a bundle of old roofing material weighing 449 n from a point 6.1 m above the ground. obviously if you hang the bundle on the rope, it will snap. so, you allow the bundle to accelerate downward. (a) what magnitude of the bundle’s acceleration will put the rope on the verge of snapping? (b) at that acceleration, with what speed would the bundle hit the ground
Answers: 3
Physics, 22.06.2019 13:00
Nacidified solution was electrolyzed using copper electrodes. a constant current of 1.18 a caused the anode to lose 0.584 g after 1.52 ✕ 103 s. given that the charge of an electron is 1.6022 ✕ 10−19 c, calculate avogadro's number. assume that copper is oxidized to cu2+ ions.
Answers: 1
Physics, 23.06.2019 00:10
During cooling, the kinetic energy of the molecules falls. why does this happen? a.the motion of the molecules increases. b. the motion of the molecules slows down. c.the van der waals forces between molecules decrease d. the forces of attraction between the molecules are overcome.
Answers: 2
Physics, 23.06.2019 05:10
Which of the following should not be included in a great summary? a. blaming your lab partner b. new questions your experiment has generated c. your prediction d. your investigation plan
Answers: 2
Using a rope that will snap if the tension in it exceeds 387 n, you need to lower a bundle of old ro...
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