Let us consider the air with the index 1 and the lucite with index 2. Using the Snell's Secound Law, we have:
Entering the unknowns, remembering that the air refrective index is 1 and the lucite refrective index is 1.5, comes:
Using the arcsin properties, we get:

Obs: Approximate results, and the drawing is attached
If you notice any mistake in my english, let me know, because i am not native.
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Answer:
Rhodium. This extremely rare, valuable and silvery-colored metal is commonly used for its reflective properties. ...
Platinum.
Gold.
Iridium.
Osmium.
Palladium.
Rhenium
Explanation:
Stars form from an accumulation of gas and dust, which collapses due to gravity and starts to form stars. The process of star formation takes around a million years from the time the initial gas cloud starts to collapse until the star is created and shines like the sun
Answer:
B.They are not as efficient at storing energy as necessary
Explanation:
Answer:
im 99% sure its initial disturbance
Explanation: