Why can longitudinal earthquake waves go straight through the center of the Earth but transverse waves cannot?
What will be an ideal response?
The transverse wave can not traverse the outer liquid core.
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Fiber optic cable is in the form of a cylinder of fiber with index of refraction 1.67 and cladding around the outside of index of refraction 1.45. Light is shown on the end of the fiber at an angle of 
relative to the fiber’s axis. What is the maximum angle with respect to the axis that light can be incident upon the fiber’s end and be fully transmitted along the fiber thanks to total internal reflection at the fiber/cladding interface?
A. 
B. 
C. 
D. 
E. 
F. 
The distance between the object to be viewed and the eyepiece of a compound microscope is 18.0 cm
The focal length of its objective lens is 0.80 cm and the eyepiece has a focal length of 2.3 cm. The near-point distance of the person using the microscope is 25.0 cm. What is the magnitude of the total magnification of the microscope if it is designed for minimum eyestrain? A) 120 B) 184 C) 200 D) 360 E) 480
Define the term solution. Give an example
Gamma rays are emitted when high speed electrons decelerate as they are smashed into a metal target
Indicate whether the statement is true or false