Hola me ayudan porfavor? :( A que velocidad se mueven las ondas o rayos cosmicos, asi como las ondas utilizadas en la transmisión?

Los rayos ultravioleta son filtrados, sin embargo, ¿Porque se producen quemaduras de primer grado y segundo grado cuando nos exponemos mucho tiempo a los rayos solares?

some sources quote the lethal dose, for an average 170lbs opiate-naive individual is between 75 and 375 mg

1.43 x 10^-11 j the guy commented the awnser just making sure u see it .

while cooking a piece of 1/2 pound beef steak, a cast iron pan (2.4kg in weight) was heated 260 celsius.

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.