The actual depth of a shallow pool 1.00 m deep is not the same as the apparent depth seen when you look straight down at the pool from above. How deep (in cm) will it appear to be? (nwater = 1.33.)
a. 133
b. 75.2
c. 90.6
d. 117
e. 100
B
Physics & Space Science
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A star on the upper edge of the main sequence denotes that:
A) it has exhausted nearly all hydrogen in its center. B) it has reached stability for the first time. C) it is in the zero-age main sequence. D) it is converted into a brown dwarf.
Physics & Space Science
Which of the waves below has the shortest wavelength?
a. gamma rays b. X-rays c. visible light d. infrared e. radio
Physics & Space Science
If two identical wires carrying a certain current in the same direction are placed parallel to each other, they will experience a force of repulsion
Indicate whether the statement is true or false
Physics & Space Science
Of the following, which of the following is the largest object?
a. the Milky Way galaxy b. the Large Magellanic Cloud c. the Local Group d. the Andromeda galaxy
Physics & Space Science