Suppose there were a planet intermediate in size between Mercury and Mars. Which of the following would be true? a. its orbital period would fall in between Mercury's and Mars's.
b. its rotation period would fall in between Mercury's and Mars's.
c. it would be active.
d. it would be inactive (assuming no tidal forces).
e. it would have a magnetic field.

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied. true or false

The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.