Week8_PHY_Final

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QUESTION 1

  1. If a car horn honking that is 450 m is heard 1.3 seconds after it goes off, what is the temperature in degrees Celsius?

    A.

    B.

    C.

    D.

12.5 points  

QUESTION 2

  1. A piece of gold with a mass of 5.50 kg and density of 19300 kg/m3 is suspended from a string and then totally immersed in a beaker of water. Using density of water is 1000 kg/m3

    a) Determine the volume of the piece of gold.

    b) Determine buoyant force on the gold when it is submersed.

    Path: 
    Path: p

    Words:0

    12.5 points  

    QUESTION 5

    1. 4.50 moles of an ideal gas is at 560K. Is the gas undergoes an adiabatic compression and 3750 J of work is done on the gas, what is the final temperature of the gas?

      A.

      B.

      C.

      D.

    12.5 points  

    QUESTION 6

    1. A gas is taken through the cycle illustrated here. During one cycle, how much work is done by an engine operating on this cycle?

      A.

      B.

      C.

      D.

    12.5 points  

    QUESTION 7

    1. A CD with a diameter of 12.5 cm goes from rest to a tangential velocity of 5.6 m/s. If it does this in 2.5 seconds, what is its angular acceleration?

      A.

      B.

      C.

      D.

    12.5 points  

    QUESTION 8

    1. An object has a weight of 400 N when it is dry. When it is completely submerged in water is has a weight of 150 N. What is the density of the material is the density of water is 1000 kg/m
      3?

      A.

      B.

      C.

      D.

 
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