Anything that is medal is connected to earth
Answer:
197 hits/s
Explanation:
If the record is turning at the rate of 33 rev/min that means it's turning
If the groove is being played at radius of 10 cm (or 0.1m), that means the record is rotating with the speed of:
The goove bumps is uniformly separated at 1.75 mm(or 0.00175m/bump) bumps. So the number of hits per second it should be
The answer is A : 302 I really hope this helps!