As Halley's comet orbits the sun, its distance from the sun changes dramatically from 8.8 x 1010 m to 5.2 x 1012 m. if the comet's speed at closest approach is 5.4 x 104 m/s, what is its linear speed when it is farthest from the sun, if angular momentum is conserved

What is the most useful equation for electric power?

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

Ateacher gives students four liquids commonly found in the kitchen - vinegar, apple juice, dish detergent, and milk - and ph indicator strips, which measure acidity. the teacher asks the students to put the liquids in order from most acidic to most basic. what type of investigation could the students conduct to determine the correct order for the liquids?