Consider this question posed at the beginning of the task: Does Earth's gravitational force field act on objects that aren't
touching Earth's surface?
Did the investigation answer the question? Explain whether it gave
enough evidence to support the idea that an invisible gravitational
force field exists.

Occurs when an energy source transfers heat directly to another subject space; an example would be an object becoming warm by sitting in the sunshine

What is special about a dc circuit ?

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?