Una dieta normal de una persona es de 2100 kcal. ¿A cuántos Joules equivale este valor energético?

in English; A person's normal diet is 2100 kcal. How many Joules is this energy value equivalent to?

In a closed system, the total energy prior to an energy transformation is the total energy after. a. equal to b. unrelated to c. greater than d. less than

What is hidden during a lunar eclipse? isn't the moon hidden?

Experiment scenario 2: a biology student wants to conduct a study of how the amount of food affects the weight gain for mice. i have set up four cages with a mouse in each cage. fill in the boxes that would allow the biology student to complete the study correctly