In the distant future, a new planet has been discovered around a nearby Sun-like star. The following information is known about this planet: 1) It has
a density of 4.1 compared to water; ii) its orbital semi-major axis is 1.7 AU;
iii) it has a very thin CO2 atmosphere; iv) imaging of the surface shows an
extensive amount of cratering as well as no liquid water on the surface.
There is evidence of volcanic activity in the distant past. Determine the
following based on the above information:
a) What type of planet is this? (Terrestrial or Jovian)

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?

An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.

You are a researcher for a golf club manufacturer. you are given two identical looking cubes of a metal alloy. you are informed that they are made of the exact same material, but one is crystalline, whereas the other is amorphous. it is your job to determine which one is amorphous this one is more stress-resistant and is useful in reinforcing golf clubs. which of the following is the best way to determine which is which? a. determine the density of each cube. the more dense one is the amorphous solid. b. melt both cubes and look for a broader range of melting temperatures. the one that melts over a broader range of temperatures is the amorphous solid. c. determine the density of each cube. the less dense cube is the amorphous solid. d. melt both cubes and measure the range of melting temperatures. the one that melts over a narrower range of temperatures is the amorphous solid.