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Aula Prática 1

Aula Prática 1. Propriedades dos fluidos e unidades. Mass and Force. What is the mass that weights 1kg? Using Force in kg (Gravitational Units System, MKpS ) one obtains the mass in this units system… The units in this system are equal or 9.8 time the SI units:

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Aula Prática 1

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  1. Aula Prática 1 Propriedades dos fluidos e unidades

  2. Mass and Force • What is the mass that weights 1kg? • Using Force in kg (Gravitational Units System, MKpS) one obtains the mass in this units system… • The units in this system are equal or 9.8 time the SI units: • On SI units system the mass is 1 kg.

  3. É homogénea

  4. Resolução P1.14

  5. Resolução do problema P1.18

  6. Resolução do problema P1.45 Zero acceleration means forces balanced. Forces are the weight and friction. For the same h, the bigger is viscosity the lower the velocity will be. But is we place oil below the block it will slip faster. Is there a contradiction? No. The oil is to increase “h”…. If h is zero, velocity is zero

  7. Pressure Units Compute normal atmospheric pressure (760 mmHg) in bar, kg/cm2 e psi.

  8. In psi • Atm=14.69psi • 1bar=14.2psi

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