Calcula la variación de la energía interna en un sistema que absorbe 200 caloriasy trabajo de 450 J.
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Apendulum has a mass of 1.5 kg and starts at a height of 0.4 m. if it is released from rest, how fast is it going when it reaches the lowest point of its path? acceleration due to gravity is g = 9.8 m/s2. a. 2.8 m/s b. 0 m/s c. 5.9 m/s d. 4.3 m/s

Why should seat belts not be mandatory quick plz

What is the rate of change in a objects position?