Why is the law of gravity an example of a universal law?
gravity exists for masses in a closed system only
o gravity exists only on the earth and moon.
gravity exists between small masses in an open system only.
gravity exists between any two masses in the universe.
answer asap for

Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]