A mosquito flies diagonally from a corner at the floor of a rectangular room, with coordinates (0, 0, 0) to the opposite corner at the ceiling, with coordinates (5.5, 3.75, h) m at a rate of 0.8 m/s. If it takes the mosquito 11 seconds to make the direct flight, what is h?
a. 5.8 m
b. 6.7 m
c. 8.5 m
d. 8.3 m
a
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The circuit below shows three resistors in series. R3>R2>R1. The resistors are all made of the same wire with the same diameter but have different lengths. Rank the magnitudes of the electric fields in the resistors from least to greatest.
A. E3
Which of the following correctly lists spectral types in order of decreasing temperature (from hottest to coolest)?
A) MKGFABO B) OBAGFKM C) OBAFGKM D) ABFGKMO E) BAGFKMO
A uniform, solid, cylindrical flywheel of radius 1.4 m and mass 15 kg rotates at What is the magnitude of the flywheel's angular momentum?
A) 60 kg ? m2/s B) 80 kg ? m2/s C) 40 kg ? m2/s D) 20 kg ? m2/s
Metric System: The metric system is preferred over the British system in science for the following main reason.
A. The metric system is more precise than the British system. B. Metric quantities can be defined more accurately than the quantities in the British system. C. Metric quantities are natural whereas British quantities are invented. D. Conversions between metric quantities are especially easy because they are all related by factors of ten.