Answer:
Second, fundamental unit of time, now defined in terms of the radiation frequency at which atoms of the element cesium change from one state to another. The second was formerly defined as 1/86,400 of the mean solar day—i.e., the average period of rotation of the Earth on its axis relative to the Sun.
source britannica
Explanation:
Velocity = frequency * wavelength
v = fλ, Just pick any points on the graph for frequency f and corresponding λ. Taking the first red point at the top. λ = 6m, f = 1 Hz, v = 6 * 1, v = 6 m/s
V = 6 M/S
The minimum coefficient of friction to avoid slippage of the coin is 0.23.
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Minimum coefficient of friction</h3>
The minimum coefficient of friction can determined from the maximum speed of the coin.
ma = μmg
mv²/r = μmg
v²/r = μg
v² = μgr
μ = v²/(gr)
μ = (ωr)²/(gr)
μ = ω²r/g
μ = (7.95² x 0.035)/(9.8)
μ = 0.23
Learn more about coefficient of friction here: brainly.com/question/20241845
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Law and the legal system are based on ideas from centuries past, but both are still constantly evolving to meet the needs of today’s world. What do you think will be the next amendment added to the US Constitution?
