Author Question: One observation that suggests that the Earth has a dense central core is that A) the Earth has ... (Read 90 times)

jasdeep_brar · **on:** Jul 27, 2018

One observation that suggests that the Earth has a dense central core is that

A) the Earth has plate tectonics
B) surface rocks have the same density as the overall density of the planet
C) surface rocks have a lower density than overall density of the planet
D) surface rocks have a higher density than the overall density of the planet

Question 2

The current through a 50. resistor is I = 0.80 sin (240. t) amperes.

(a) At what frequency does the current vary?
(b) How much power is dissipated in the resistor?