Which of these is
2 answers:
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Power consumed by the refrigerator is given as
Now if refrigerator is used 10 h a day then total usage of refrigerator for 1 month will be given as
now the total energy consumed in one month is given as
now it is given that cost of one kWh is $0.20
then total cost of one month is given as
Explanation:
We have,
Spring constant of the spring, k = 165 N/m
Mass, m = 2 kg
It is required to find the period of the mass-spring system. For the spring mass system, the period is given by :
The frequency of vibration is reciprocal of its time period. So,
So, the period of the mass-spring system is 0.69 s and frequency is 1.44 Hz.