A car of mass 1 000 kg moves with a speed of 50 m/s on a circular track of radius 100 m. What is the magnitude of its angular momentum (in kg×m2/s) relative to the center of the race track?
a. 5.0 × 10^2
b. 5.0 × 10^6
c. 2.5 × 10^4
d. 2.5 × 10^6
e. 5.0 × 10^3
B
Physics & Space Science
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Indicate whether the statement is true or false
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A fountain sends water to a height of 113 m. What must be the pressurization (above atmospheric) of the underground water system? (1 atm = 105 N/m2)
a. 1.0 atm b. 47.1 atm c. 12.1 atm d. 11.1 atm e. 0.115 atm
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The person who expounded the uncertainty principle was
a. Max Planck b. Albert Einstein c. Neils Bohr d. Erwin Schroedinger e. Werner Heisenberg.
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What is the direction of 
at point O?
A. A B. B C. C D. D E. E F. F T. Zero
Physics & Space Science