Two flat rectangular mirrors are set edge to edge and placed perpendicular to a flat nonreflecting surface. A light ray that reflects from mirror 1 at angle ?M1 then strikes the second mirror and reflects at ?M2 such that the angle between the ray reaching mirror 1 and the ray leaving mirror 2 is 180°. The angle between the two mirrors is
a. 0°.
b. 45°.
c. 90°.
d. 150°.
e. 235°.
c
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Alpha, beta, and gamma particles are all deflected by a magnetic field
a. True b. False Indicate whether the statement is true or false
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a) Venus is smaller than Mercury so it does not require so much energy to heat it. b) of the volcanic activity that occurs on Venus. c) Mercury's atmosphere prevents radiation from penetrating through to its surface. d) Venus is closer to the Sun than Mercury. e) Venus is more massive and is able to retain a thick atmosphere.
Which type of weather is characterized by spiral storms with winds of up to 300 km/hour?
A) hurricanes B) tornadoes C) tropical depressions D) tropical storms