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Natasha2012 [34]
2 years ago
14

Why is there two π in the formula of a mathematical pendulum (T=2π √l/g)?

Physics
1 answer:
uysha [10]2 years ago
5 0

Answer:

The π is from the initial formula of period T=2π/omega

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Graph C

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A refrigeration cycle has Qout = 1000 Btu and Wcycle = 300 Btu. Determine the coefficient of performance for the cycle.
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Answer:

The coefficient of performance for the cycle is 2.33.

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COP=\dftrac{Q_{in}}{W_{cycle}}

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5 0
3 years ago
A horizontal object-spring system oscillates with an amplitude of 2.8 cm. If the spring constant is 275 N/m and object has a mas
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(a) the mechanical energy of the system, U = 0.1078 J

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V_{max} =\omega*A=  \sqrt{\frac{K}{M} } *A\\\\V_{max} = \sqrt{\frac{275}{0.5} } *0.028\\\\V_{max} = 0.657 \ m/s

(c) the maximum acceleration of the object

a_{max} = \frac{KA}{M} \\\\a_{max} = \frac{275*0.028}{0.5}\\\\a_{max} = 15.4 \ m/s^2

6 0
3 years ago
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