The planet Mars requires 2.01 years to orbit the sun, which has a mass of 1.989 × 1030 kg,

in an almost circular trajectory.

Find the radius of the orbit of Mars as it

circles the sun. The gravitational constant is

6.672 × 10−11 N · m2

/kg2

Answer in units of m

Part 2:

Find the orbital speed of Mars as it circles the

sun.

Answer in units of m/s.

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.

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid