Atype of cuckoo clock keeps time by having a mass bouncing on a spring, usually something cute like a cherub in a chair. what force constant (in n/m) is needed to produce a period of 0.660 s for a 0.0100 kg mass?

0.906 N/m

Explanation:

Given

time period

mass

System can be considered as spring mass system

Time Period of spring mass system is given by

squaring

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

i think the answer would be b