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Bas_tet [7]
2 years ago
10

1. The distance between a trough and a crest on a transverse wave is 12.0cm. If cycles of the wave pass a fixed point in one sec

ond, calculate the speed of the wave.​
Physics
1 answer:
11Alexandr11 [23.1K]2 years ago
8 0

Answer:

0.12m/s

Explanation:

v=λf

Given that, λ = 12cm = 0.12m

T = 1second

(A period T is the time required for one complete cycle of vibration to pass a given point)

frequency 'f' is unknown but we can get frequency from f = 1/T = 1/1 = 1Hz

therefore, v= 0.12 × 1 = 0.12m/s

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Air conditioners sold in the United States are given a seasonal energy-efficiency ratio (SEER) rating that consumers can use to
amid [387]

Answer:

112.58

Explanation:

The Coefficient of Performance of any system is denoted by COP=Q/W, where Q is the useful heat supplied or removed and W is the work required by the system. According to the first law of thermoddynamics Qh= Qc + W, where Qh is the heat transfered to the hot reservoir and Qc is the heat collected from the cold reservoir. Substituting the values for W and apllying the limitation for maximum theoretical efficiency we end up with the eqution shown below.

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converting the values to Kelvin and adding them in the above equation

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From the question, it is stated that COP=SEER/3.4

hence, SEER= COP * 3.4

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7 0
4 years ago
An experiment to measure the speed of light uses an apparatus similar to Fizeau's. The distance between the light source and the
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Answer:

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Explanation:

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