Please answer soon, i need this quick!! thank you <3 Which of the following is unique for each element? the number of protons the number of protons the number of neutrons the number of neutrons the number of electrons the number of electrons the number of nuclei

How much heat is needed to change the temperature of 3 grams of gold (c = 0.129 ) from 21°c to 363°c? the answer is expressed to the nearest whole number.

Asap and show ! a 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.

Which governments provide garbage collection services to homes and businesses