Calculate the linear speed due to the Earth's rotation for a person at a point on its surface located at 30o N latitude. The radius of the Earth is 6.40 × 10^6 m
a. 299 m/s
c. 403 m/s
b. 233 m/s
d. 465 m/s
C
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Approximately how much air is in a column 1-cm2 in cross section that extends from sea level to the top of the atmosphere?
A) 1 gram B) 1 kg C) 10 kg D) 100 kg
If a plane is flying at a speed so that the apex half-angle of its shockwave is 30°, what is its speed if the speed of sound is 320 m/s?
a. 960 m/s b. 640 m/s c. 320 m/s d. 160 m/s e. Choose this answer if a shock wave cannot form in this situation.
_________is the stainless steel used in beer kegs.
Fill in the blank(s) with the appropriate word(s).
A transverse periodic wave is represented by the equation z(y, t) = 1.50 cm sin(1,250 rad/s t + 10.0
What is the velocity of the wave?
A. 125 m/s in the + z direction B. 250 m/s in the - z direction C. 125 m/s in the + y direction D. 125 m/s in the - y direction E. 250 m/s in the - y direction