When the average kinetic energy of the molecules goes up (a rise in temperature), the average speed of the molecules increases. And lower average kinetic energy of the molecules means they have lower speed. However, a change in average kinetic energy is not directly proportional to a change in average speed. 1.
An appreciation means an increase in the value of a currency. It means a currency is worth more in terms of foreign currency.
Enter the amount you'd like in US Dollars to see how much foreign currency this will get you or enter the amount of foreign currency you want to see how much this will cost you in US Dollars-Rate last updated Wednesday, 21 October 2015 11:09:16 AM EDT. USD = EUR.nter the amount you'd like in US Dollars to see how much foreign currency this will get you or enter the amount of foreign currency you want to see how much this will cost you in US Dollars-Rate last updated Wednesday, 21 October 2015 11:09:16 AM EDT. USD = EUR.