What would be the weight of a 59.1-kg astronaut on a planet with the same density as Earth and having twice Earth's radius?
A) 290 N B) 580 N C) 2320 N D) 1160 N E) 1200 N
D
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A racing car accelerates uniformly from rest along a straight track. This track has markers spaced at equal distances along it from the start, as shown in the figure. The car reaches a speed of 140 km/h as it passes marker 2
Where on the track was the car when it was traveling at 70 km/h? A) Before marker 1 B) At marker 1 C) Between marker 1 and marker 2
Climate models which ignore human activity
A) completely fail to match real climate data B) match real climate data quite well C) match real climate data perfectly D) match real climate data, but only poorly
An object thrown upward experiences free fall
Indicate whether the statement is true or false
Two tuning forks with frequencies 264 and 262 Hz produce "beats". What is the beat frequency (in Hz)?
a. 4 b. 2 c. 1 d. 3 e. 0 (no beats are produced)