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    Basic Physics of Mass, Heat, Balance Equations, Waves and pH

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    1. If an object has a mass of 1.0 Kg, what is it's weight on Jupiter with 2.5 times the gravitational force as on earth?

    2. What net force is necessary to accelerate a 1000-Kg space probe 8m/s2?

    3. How much heat that must be added to raise the temperature of a cup of coffee (250g) from 25.5ºC to 95.6ºC. Assume that the coffee has a specific heat of 4.187 ?

    4. Which of the following reactions is not correctly balanced?
    a. 4Fe + 3O2 → 2Fe2O3
    b. C3H8 + 10O2 → 3CO2 + 4H2O
    c. N2 + 3H2 → 2NH3
    d. 2H2O → 2H2 + O2

    5. How long would it take for a radio wave to travel 8.00 x 1010 m?

    6. A pH 2 solution has _____ times the concentration of hydroxide as a pH 6 solution.

    © BrainMass Inc. brainmass.com December 24, 2021, 11:25 pm ad1c9bdddf
    https://brainmass.com/physics/computational-physics/basic-physics-mass-heat-balance-equations-waves-ph-567347

    SOLUTION This solution is FREE courtesy of BrainMass!

    1. If an object has a mass of 1.0 Kg, what is its weight on Jupiter with 2.5 times the gravitational force as on earth?
    Solution:

    2. What net force is necessary to accelerate a 1000-Kg space probe 8m/s2?
    Solution:

    3. How much heat must be added to raise the temperature of a cup of coffee (250g) from 25.5ºC to 95.6ºC. Assume that the coffee has a specific heat of 4.187?
    Solution:

    4. Which of the following reactions is not correctly balanced?
    a. 4Fe + 3O2 → 2Fe2O3
    b. C3H8 + 10O2 → 3CO2 + 4H2O
    c. N2 + 3H2 → 2NH3
    d. 2H2O → 2H2 + O2
    Solution:
    b. C3H8 + 10O2 → 3CO2 + 4H2O
    The above equation is not balanced.
    The balanced equation would be:
    C3H8 + 5O2 → 3CO2 + 4H2O

    5. How long would it take for a radio wave to travel 8.00 x 1010 m?
    Solution:
    Radio waves travel with the speed of light.

    6. A pH 2 solution has _____ times the concentration of hydroxide as a pH 6 solution.
    Solution:
    Solution:
    A pH 2 solution has 10000 times the concentration of hydroxide as a pH 6 solution.

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    © BrainMass Inc. brainmass.com December 24, 2021, 11:25 pm ad1c9bdddf>
    https://brainmass.com/physics/computational-physics/basic-physics-mass-heat-balance-equations-waves-ph-567347

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