Kelli examines her new ruby ring with the jeweler's loop. The ruby appears 7.0 times larger. If her near point is 35. cm, what is the focal length of the lens?
A) 36. mm
B) 70. mm
C) 67. mm
D) 42. mm
E) 58 mm
Question 2
In the nuclear fusion of four hydrogen nuclei to form a helium nucleus, the resultant helium nucleus
A) is more massive than the four hydrogen nuclei, the missing mass being converted into energy
B) is radioactive, generating energy by ejected electrons from beta decay
C) is less massive than the four hydrogen nuclei, the missing mass being converted into energy
D) has exactly the same mass as the four hydrogen nuclei, the energy being generated by the helium nucleus rearranging itself by emitting a gamma ray
The Sun as it appears from the surface of the Earth at sunrise.
Jupiter’s Ring and Torus
Compared with modern humans, Homo erectus has a larger face, lacks a chin and canine fossa, and has
A negative feedback loop.
Testing an oxygen sensor using a DMM set on DC volts. With the engine operating in closed loop, ...
a solution is prepared in which a trace or small amount of Fe2+ is added to a much larger ...