By what factor is the self-inductance of a solenoid changed if its length is doubled and its number of coil turns is tripled?
a. 2/9
c. 3/4
b. 9/2
d. 4/3
B
Physics & Space Science
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vx is the velocity of a particle moving along the x axis as shown. If x = 2.0 m at t = 1.0 s, what is the position of the particle at t = 6.0 s?
?
?
A. ?2.0 m B. +2.0 m C. +1.0 m D. ?1.0 m E. 6.0 m
Physics & Space Science
A fiber optic cable (n = 1.40) is submerged in water (n = 1.33). What is the critical angle for light to stay inside the cable?
a. 71.8° c. 62.5° b. 27.6° d. 41.8°
Physics & Space Science
Significant Figures: A rectangular garden measures 15 m long and 13.70 m wide. What is the length of a diagonal from one corner of the garden to the other?
A. 18 m B. 19 m C. 20 m D. 4.1 × 102 m
Physics & Space Science
The Japanese name for the asterism we call the Pleiades
Physics & Space Science