An object of mass weighing 5.24 kilograms is raised to a height of 1.63 meters. what is the potential energy of the object at that height? note that acceleration due to gravity is 9.8 meters/second2.
a. 65 joules
b. 84 joules
c. 91 joules
d. 1.0 × 102 joules
e. 1.5 × 102 joules
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PE = mgh,
 
            Mass, m = 5.24kg,  g ≈ 9.8m/s², h = 1.63m
  
        = 5.24 * 9.8 *1.63 = 83.70376 ≈ 84

PE ≈ 84 J

The potential energy of the object measuring 5.24 kilograms at a height of 1.63 meters with the acceleration due to gravity equal to 9.8 meters/second2, we use the formula E = mgh. The potential energy is equal to 5.24 kg * 9.8 m/s3* 1.63 m equal to 83.70 joules. Answer is B. 84 Joules.

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1) when you rub your hands together quickly, the kinetic energy is converted to mechanical energy.2) thermal energy from the sun travels to earth as infrared waves.3) energy is transferred through the matter of space by electromagnetic waves. 4) when a match is burned, chemical potential energy is converted to thermal and radiant energy. 5) seismicwaves are caused by back and forth movement , or vibration, of an object. 6) mechanicalenergy in an engine changes thermal energy into kinetic energy to make a car move.