Two earth satellites, a and b, each of mass m, are to be launched into circular orbits about earth's center. satellite a is to orbit at an altitude of 6380 km. satellite b is to orbit at an altitude of 22700 km. the radius of earth reis 6370 km. (a) what is the ratio of the potential energy of satellite b to that of satellite a, in orbit? (b) what is the ratio of the kinetic energy of satellite b to that of satellite a, in orbit? (c) which satellite (answer a or b) has the greater total energy if each has a mass of 35.0 kg? (d) by how much?
Answers: 1
Physics, 21.06.2019 17:00
Why is alternating current more effective at long–distance travel than direct current? a. the power lines are made out of conductors. b. transformers increase or decrease voltage as needed. c. the ac generator is more efficient. d. ac has lower voltage than dc.
Answers: 1
Physics, 21.06.2019 23:30
Which lists the main components of darwin’s theory of evolution? a. random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change. b. natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time. c. natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time. d. random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.
Answers: 1
Physics, 22.06.2019 04:30
The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.
Answers: 1
Physics, 22.06.2019 07:00
Suppose while hauling rocks, you accidentally drop one. it breaks apart in flat, planar sections. what type of rock did you just drop? 20 points
Answers: 3
Two earth satellites, a and b, each of mass m, are to be launched into circular orbits about earth's...
Health, 30.04.2021 22:40
Mathematics, 30.04.2021 22:40
Mathematics, 30.04.2021 22:40
Mathematics, 30.04.2021 22:40
Social Studies, 30.04.2021 22:40
Mathematics, 30.04.2021 22:40
English, 30.04.2021 22:40
Mathematics, 30.04.2021 22:40
Mathematics, 30.04.2021 22:40
Mathematics, 30.04.2021 22:40
Biology, 30.04.2021 22:40
English, 30.04.2021 22:40
Mathematics, 30.04.2021 22:40
Mathematics, 30.04.2021 22:40
Mathematics, 30.04.2021 22:40