According to Einstein, is a frame at rest on the earth’s surface a reasonably accurate inertial frame (ignoring the earth’s rotation)?
A. No, such a frame is accelerating upward.
B. It is not a real inertial frame, but we can treat it as one if we ignore external gravitational forces acting on objects inside the frame.
C. Yes.
D. It depends (explain).
A. No, such a frame is accelerating upward.
You might also like to view...
A car increases its speed from 60 to 65 miles per hour in the same time that a bicycle increases its speed from rest to 5 miles per hour. Acceleration is
1) greater for the car, 2) greater for the bicycle, 3) the same for each, principally because 4) the car undergoes the greater change in velocity. 5) the bicycle has considerably less mass. 6) both undergo equal increases in velocity during the same interval of time.
Of the planetary systems that may exist in our galaxy, what fraction may contain a habitable planet?
A) almost all B) about half C) about a tenth D) only 1 in 50 E) less than 1 in 100
The most violent volcanic explosions are generated from
A) basaltic lava flows. B) andesitic lava flows. C) granitic lava flows. D) ocean floor lava flows.
A parallel plate capacitor with circular plates having radius 0.07 m and a dielectric with constant 2.2. If it is desired to store 
J in this capacitor, what must the separation distance be for a voltage of 1.5 kV?
A. 2.8 cm B. 5.5 cm C. 1.3 cm D. 0.90 cm E. 1.4 cm