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Physics, 22.06.2019 21:00
The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy.
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Physics, 22.06.2019 22:30
The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaρv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and ρ is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and ρ = 1.2 kg/m3.
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What energy transformations occur each time the skateboarder rolls up the ramp?
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Physics, 23.06.2019 02:30
Based on its type of chemical bond, which of the following has the highest boiling point? potassium chloride ethyl alcohol water ammonia
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Which energy conversion occurs in an operating voltaic cell...
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