Find the gravitational force exerted by the earth on a rock of mass 100kg which lies on the surface of the earth. Mass of earth is 6*10^24 kg, radius if the earth is 6.4*10^6 mand G= 6.67*10^-11 SI units.

Ineed the answer to question 1 , i’m desperate

When temperature of a substance increases, of its particles increase resulting in more between particles. real world applications of thermal expansion absolute zero (-273 degrees c) is the lowest possible temperature on the kelvin scale. it is a measure of where a substance has no kinetic energy. heat is a process of the . energy flows spontaneously from a object to a until equilibrium is reached. heat is measured in heat is transferred throughis a method of heat transfer that occurs between particles of matter that are in direct contact with each other. are poor conductors that impede / reduce the rate of heat transfer. is a method of heat transfer that occurs in fluids (non-solids) by means of currents. real world application of convectiona method of heat transfer through electromagnetic waves. when energy moves from one object to another inside a closed system, no energy is or in the system in the transaction. systems will spontaneously move to a state of organized energy or high disorder over time called

Which accounts for an increase in the temperature of a gas that is kept a constant volume