Using the data in the table and the fact that newtons second law states that force equals mass times acceleration, find the acceleration of the object? A) 0.2 m/s^2
B) 5 m/s^2
C) 125 m/s^2
D) 500 m/s^2

This is what a calorimeter is used for simpler ex, to measure calories in food.

I'm having some difficulty seeing the diagram clearly.but the question says there's a net inward force on the object.so we know right away,  from newton's 2nd law of motion, thatthat baby is accelerating.  it doesn't even matter which way thenet force is pointing.  if there's any net force, then either theobject's speed or else its direction must be changing.

Ican’t exactly answer this, but i can try to give a bit more info here.
astronomers are able to calculate a star’s life expectancy depending on its mass. (a larger star burns more gas, therefore having a shorter life span).
so astronomers can definitely predict the death of stars and the times they will die.
i hope this was in some way : )