Eh? i don’t understand huhu
Answer:
0.99 s
Explanation:
The period of a simple pendulum is given by:
where
L is the length of the pendulum
g is the acceleration due to gravity
In this problem, we have
Substituting into the equation, we find the period:
The nuclear forces are very short range whereas the electromagnetic force has a long range.
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