Two plane mirrors are joined at a right angle. A beam of light is shone on one of the mirrors at an angle of incidence of 22 degrees, such that the reflected ray strikes the other mirror. What is the angle of incidence for the beam that strikes the second mirror?
A. 
B. 
C. 
D. 
B.
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Silicon single-crystal polished wafers are processed into integrated circuits with insulators, p-type and n-type materials, and conductors by _________.
Fill in the blank(s) with the appropriate word(s).
All large astronomical telescopes built since the start of the 20th century have been _______________ telescopes
Fill in the blank(s) with correct word
Phase Angles: At 1.0 kHz, the phase angle of an RLC series circuit with a capacitive reactance of 40 ?, a resistance of 100 ?, and a certain inductor is 40°. What is the inductance in this circuit?
A. 12 mH B. 120 mH C. 210 mH D. 62 mH E. 20 mH
Simple Harmonic Motion: A sewing machine needle moves in simple harmonic motion with a frequency of 2.5 Hz and an amplitude of 1.27 cm.(a) How long does it take the tip of the needle to move from the highest point to the lowest point in its travel?(b) How long does it take the needle tip to travel a total distance of 11.43 cm?
What will be an ideal response?