Increasing the diameter of a telescope I. increases its light-gathering power. II. increases its resolving power. III. increases it magnifying power. IV. increases its chromatic aberration
a. I, II, III, & IV
b. I, II, & III
c. I, II, & IV
d. III & IV
e. I & II
e
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A 5.0-kg object is suspended by a string from the ceiling of an elevator that is accelerating downward at a rate of 2.6 m/s2. What is the tension in the string?
a. 49 N b. 36 N c. 62 N d. 13 N e. 52 N
A 30.0 cm long brass rod is suspended at the ends by long strings. The rod is struck at one end parallel to the rod and causes the rod to vibrate longitudinally with the ends free.
The frequency of the vibration is
A. 5,430 Hz. B. 5,020 Hz. C. 4,760 Hz. D. 4,500 Hz. E. 3,950 Hz.
In a/an ____________ binary, the orbits of both stars can be mapped
Fill in the blank(s) with correct word