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Phy 110: Basic Physics Question Paper

Phy 110: Basic Physics 

Course:Bachelor Of Science In Mathematics And Computer Science

Institution: Moi University question papers

Exam Year:2012



PHY 110: CAT II

1. A bus travelling towards a stage with a speed of 20 m/s hoots a note of frequency 80 Hz is produced. Calculate the apparent frequency of the echo heard by the driver. Speed of sound in air is 330 m/s.

2. A steel strip clamped at one end vibrates with a frequency of 20 Hz and an amplitude of 5 mm at the free end where a small mass of 2 g is positioned. Find:
a. Velocity of the end when passing through the zero position.
b. The acceleration at maximum displacement.
c. The maximum K.E and P.E of the mass.

3. A 4.0 m long copper wire of cross-sectional area 1.2 square cm is stretched by a force of 4800 N. If Young's modulus is Y = 1.2 x 10^11 Pa, calculate:
i. Stress
ii. Strain
iii. Increase in length of the wire




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