Question

( T = 10 seconds and F 50 Hz
(1) T = 0.2 seconds and F = 5 Hz
() T = 5 second an
T = 5 seconds
. Answer the following questions in 30-40 words:
a) Distinguish between sliding friction and rolling friction
b) Low frequency sound is faint while high frequency sound is
statement? Why or why not?
c) (i) What is the audible frequency range for the human ear?
(ii) State two ways to minimise noise pollution.
d) Two astronauts cannot talk to each other in space without
Answer the following questions in 60-80 words:
a) State two advantages and two disadvantages of friction
a juice shop and his sugarcane crushing​

Answer 1

Explanation:

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