Answer:
Touch the top of the stove after it has been on and it feels hot. Hold an ice cube in your hand and it feels cold. Why? The particles of matter in a hot object are moving much faster than the particles of matter in a cold object. An object’s kinetic energy is the energy due to motion. The particles of matter that make up the hot stove have a greater amount of kinetic energy than those in the ice cube.
Temperature is a measure of the average kinetic energy of the particles in matter. In everyday usage, temperature indicates a measure of how hot or cold an object is. Temperature is an important parameter in chemistry. When a substance changes from solid to liquid, it is because there was an increase in the temperature of the material. Chemical reactions usually proceed faster if the temperature is increased. Many unstable materials (such as enzymes) will be viable longer at lower temperatures.
Explanation:
Answer:
Negative Versus Positive. Liberty 14. One Side of Self-Rule: Democracy 14. Another Side of Self-Rule: A Republic 15. A Mixed System 16.
B. When Rosa parks refused to give up her seat on a bus
Answer:
1) A failed uprising against communist in Cuba, planned by the U.S.
Explanation:
The Bay of Pigs invasion was a failed landing operation on the southwestern coast of Cuba in 1961 by Cuban exiles who opposed Fidel Castro's Cuban Revolution. Covertly financed and directed by the U.S. government, the operation took place at the height of the Cold War and its failure led to major shifts in international relations between Cuba, the United States, and the Soviet Union. The invasion was a US foreign policy failure. The invasion's defeat solidified Castro's role as a national hero, and widened the political divide between the two formerly-allied countries. It also pushed Cuba closer to the Soviet Union, and those strengthened Soviet-Cuban relations would lead to the Cuban Missile Crisis in 1962.
