The correct value for the speed of light in air is
A. 1.86 × 105 feet/s.
B. 3 × 105 km/h.
C. 1.86 × 105 miles/h.
D. 3 × 108 m/s.
E. 3.0 × 105 m/s.
Answer: D
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A. the red line is slightly lower than the water level. B. the red line is still at the water level. C. the red line is slightly higher than the water level.
A spring with a force constant of 2.00 N/m is attached to a mass of 75.0 g. The system has a small amount of damping
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1.everywhere. 2.only for large angles. 3.only for small angles.
Some young star clusters contain large numbers of T Tauri stars
Indicate whether the statement is true or false