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astra-53 [7]
3 years ago
9

A car of mass 1500 kg is negotiating a flat circular curve of radius 50 m with a speed of 20 m/s.

Physics
1 answer:
Lilit [14]3 years ago
6 0

Answer:

Explanation:

a. The source of centripetal force on the car is  (3) the static friction force.

b. ac = v²/R = (20²)/50 = 8 m/s²

c.  Fc = m(ac) = 1500(8) = 12 kN

d. μ = Fc/N = Fc/mg = 12000 / 1500(9.8) = 0.8163... ≈ 0.82

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Answer:

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Explanation:

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we substitute

          d \  \frac{y}{L} = m λ

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            d = 1.09 10⁻⁶ m

for the unknown lamp we look for the wavelength

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           λ = 1.09 10⁻⁶ 0.364 / 1.00 1

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8 0
3 years ago
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earnstyle [38]

Answer:

With a 50-mL graduated cylinder, read and record the volume to the nearest 0.1 mL. The 10-mL graduated cylinder scale is read to the nearest 0.01 mL and the 500-mL graduated cylinder scale is read to the nearest milliliter (1 mL). A buret is a scaled cylindrical tube attached to a stopcock, or valve.

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Explanation:

given,

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