Plants and animals belong to the phylum
A) annelida
B) echinodemata
C) cnidaria
D) chordata
D
Physics & Space Science
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If a virtual image is formed along the principal axis 15 cm from a concave mirror with the focal length 15 cm, what is the object distance from the mirror?
a. 6.0 cm c. 30 cm b. 10 cm d. 7.5 cm
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A radio telescope and an optical telescope of the same size have the same angular resolution
Indicate whether the statement is true or false
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What kind of weather is usually associated with a high-pressure cell? Why?
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A person in a boat sees a fish in the water (n = 1.33), the light rays making an angle of 40° relative to the water's surface. What is the true angle (in degrees) relative to the water's surface of the same rays when beneath the surface?
a. 40 b. 35 c. 50 d. 55 e. 61
Physics & Space Science