The shortest wavelength of visible light is approximately 400 nm. Express this wavelength in centimeters
A) 4 × 10-5 cm
B) 4 × 10-7 cm
C) 4 × 10-9 cm
D) 4 × 10-11 cm
E) 400 × 10-11 cm
Answer: A
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Uniform Circular Motion: A 2.0-kg ball is moving with a constant speed of 5.0 m/s in a horizontal circle whose diameter is 1.0 m. What is the magnitude of the net force on the ball?
A. 0 N B. 20 N C. 40 N D. 50 N E. 100 N
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What will be an ideal response?
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