-- Speed = (distance) / (time to cover the distance) = 840/2.5 = 336 m/s
-- Frequency = (speed) / (wavelength) = 336/0.70 = 480 Hz.
No the vector can never be shorter than one of its components
Hydrogen and oxygen bond because when more molecules are present, as is the case with liquid water, more bonds are possible because the oxygen of one water molecule has two lone pairs of electrons, each of which can form a hydrogen bond with a hydrogen on another water molecule.
Too cook the beef, the heat should penetrate to the deepest layer of the meat. Let say that the meat is cubical with 10cm width. To penetrate the core of the meat, the heat need to travel 5 cm from any side of the meat. If the meat cut into two similar pieces, the deepest core of the meat will be exposed to the heat directly.
Now the deepest core is not 5 cm anymore, it will become 2.5 cm. So the heat has to penetrate a thinner layer, thus make it cooked faster.
Answer:
learning and memory are very closely related concept . Learning is the acquisition of silk or knowledge, while memory is the expression of what you've acquired.Another difference is the speed with which the two things happen if you acquire the new skill or knowledge slowly and laboriously, that's learning
