A race car circles 10 times around a circular 8.0-km track in 20 min. Using SI units (a) what is its average speed for the ten laps? (b) what is its average velocity for the ten laps?
What will be an ideal response?
(a) 67 m/s (b) 0 m/s
Physics & Space Science
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Find Brewster's angle for light reflected from the top of a water surface (n = 1.33 )
A) 53.1° B) 36.9° C) 56.3° D) 60.2° E) 90.0°
Physics & Space Science
Uniform Circular Motion: Shown below are the velocity and acceleration vectors for an object in several different types of motion. In which case is the object's velocity changing while its speed is not changing?
A.
B.
C.
D.
Physics & Space Science
Addition by Components: You walk 33 m to the north, then turn 60° to your right and walk another 45 m. Use components to find how far you end up from your starting point.
A. 68 m B. 39 m C. 75 m D. 35 m
Physics & Space Science
An area of 100 cm2 is how many square meters?
A) 1.00 B) 1.00 × 102 C) 1.00 × 10-2 D) 1.00 × 104 E) 1.00 × 10-3
Physics & Space Science