Physics, 05.10.2019 04:30 sweetiezylp8umho
Consider two small identical spheres of uniform density pm and radius r. the spheres are just touching each other and are at a distance d from a large planet with density pm and radius r (see figure 4). by equating the gravitational force of attraction between the touching spheres and the tidal force of the planet on the spheres, show that the spheres will be pulled apart by the planet's tidal forces if they venture closer than: pm r d~2.5(a) you may assume d ć r ć r. this is a good estimate of the planet's roche limit. the coefficient will change with the properties of the masses, but this is generally good enough b) estimate the roche limit for saturn and compare with the positions of saturn's rings use reasonable estimates for the densities of saturn and the particles composing its rings
Answers: 2
Physics, 21.06.2019 23:50
Select the correct answer from each drop-down menu. compared to its surroundings, the concentration of solutes is low inside a cell. so, the cell is with respect to its surroundings. a particular solute in this cell uses energy for its transport from the cell to its surroundings. this type of transport is called
Answers: 3
Physics, 22.06.2019 09:40
Aturntable a is built into a stage for use in a theatrical production. it is observed during a rehearsal that a trunk b starts to slide on the turntable 10 s after the turntable begins to rotate. knowing that the trunk undergoes a constant tangential acceleration of 0.31 m/s2, determine the coefficient of static friction between the trunk and the turntable.
Answers: 3
Physics, 22.06.2019 10:30
You are driving directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. (a) will your car hit the crate before the crate hits the road if you neither brake nor swerve? (b) during the fall, is the horizontal speed of the crate more than, less than, or the same as that of the truck?
Answers: 2
Consider two small identical spheres of uniform density pm and radius r. the spheres are just touchi...
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