En una taza de cerámica de 0.5 kilogramos se sirve café caliente con un calor específico de 4186 Julios/ ( kilogramos grados Celsius). ¿Cuanto calor absorbe la taza si la temperatura se eleva de 20 a 80 Celsius?

Which of the following describe possible scenarios? a) an object has zero instantaneous velocity and non-zero acceleration. b) an object has negative acceleration and is speeding up. c) an object has positive acceleration and constant velocity. d) an object has positive velocity and zero acceleration. e) an object has increasing positive position and negative velocity. f) an object has decreasing positive position and negative acceleration.