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:
D)congress printed a national currency that was devalued by national debt
Explanation:
The Confederation issued paper bills called Continentals. But by 1781, those bills had quickly depreciated. Congress could not use them to acquire gold or silver and the whole economy suffered. Congress had no power to tax and had a large debt.
Answer:
D. The difficulty of working in the outside weather
Answer:
Lewis and Clark's expedition would likely not have been successful without Sacagawea's help, because they would not have been able to communicate with the Native American tribes they met along the way and therefore would have had trouble trading for horses and supplies.
John Locke actually believed that English society and government correspond to his expressed ideals. Thomas Paine rejected the assumption that the English people were free, independent and lived within an egalitarian society. He bluntly stated that their government was not republican in nature.
