Vật khối lượng m1 =2kg chuyển động trên mp ngang không ma sát với vận tốc v1=10m/s thì trượt lên mặt dốc của một cái nêm a. Nêm cố định. Hỏi vật có thể trượt lên độ cao h bao nhiêu?
b. Nêm có khối lượng m2=4kg, vật m1 trượt lên đên đỉnh dốc và nằm yên trên đỉnh dốc. tìm chiều cao đỉnh dốc h1
c. Nêm có khối lượng m2=4kg, đỉnh dốc của nêm cao h2=0,5h1. Tìm vận tốc các vật sau khi vật vượt qua nêm

When someone slams her books on a table the kinect energy is transferred into vibrations that travel to your ears as sound waves which statement describes the movement of those waves

Oxygen and hydrogen gas are at the same temperature t. what is the ratio of kinetic energies of oxygen molecule and hydrogen molecule if oxygen is 16 times heavier than hydrogen.

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