A un pedazo de vidrio se le aumenta la temperatura de 25°C a 570°C para poderlo fundir, para esto se le suministraron 3000J. ¿De qué valor es la masa de dicho pedazo de vidrio?.
El valor especifico del vidrio es: 0.20 cal/g °C

i believe the answer is electric potential.

explanation:

the moving of the box is a result of centripetal force. think of that  as a car or a truck in this case creates a turn, the force of friction performing upon the turned wheels of the car runs centripetal force obligatory for circular motion for the things inside it.