Microwave ovens employ microwave radiation, which is lower in frequency than infrared radiation, to generate the heat in the food they cook. They don't use infrared radiation per se.
True
False.
True
Yes, that is true. About half of the sun's energy comes to the Earth as infrared radiation.
true
True.
False.
True - they work by using microwave radiation.
It is true that yeast bread can be baked in a microwave oven. However, the results are not always good.
False
True AND False OR True evaluates to True. IT seems like it does not matter which is evaluated first as: (True AND False) OR True = False OR True = True True AND (False OR True) = True AND True = True But, it does matter as with False AND False OR True: (False AND False) OR True = False OR True = True False AND (False OR True) = False AND True = False and True OR False AND False: (True OR False) AND False = True AND False = False True OR (False AND False) = True OR False = True Evaluated left to right gives a different answer if the operators are reversed (as can be seen above), so AND and OR need an order of evaluation. AND can be replaced by multiply, OR by add, and BODMAS says multiply is evaluated before add; thus AND should be evaluated before OR - the C programming language follows this convention. This makes the original question: True AND False OR True = (True AND False) OR True = False OR True = True
True. Infrared lamps are commonly used in restaurants to keep food warm on serving counters or buffet lines. The heat generated by the lamps helps to maintain the temperature of the food, preventing it from cooling down too quickly.
False. It is software.
Microwaves do not act like normal ovens unless you have a combination oven. True microwave ovens do not work with the door open and rely on friction between the molecules of water,sugar and fat to heat the food from within.
No. They occupy two different but adjacent ranges on the electromagnetic frequency/wavelength spectrum. Microwaves have frequencies from 300 MHz to 300 GHz, wavelengths from 100 cm down to 0.1 cm. Infrared radiation ranges from 300 GHz up to about 700 to 1000 THz (visible red light). There is some degree of overlap. But microwave ovens generate waves around 2.45 GHz, and create their thermal energy (heat) mostly by exciting water molecules. Unlike infrared heating, the waves penetrate below the surface of objects.
True
True
Assuming that you mean not (p or q) if and only if P ~(PVQ)--> P so now construct a truth table, (just place it vertical since i cannot place it vertical through here.) P True True False False Q True False True False (PVQ) True True True False ~(PVQ) False False False True ~(PVQ)-->P True True True False if it's ~(P^Q) -->P then it's, P True True False False Q True False True False (P^Q) True False False False ~(P^Q) False True True True ~(P^Q)-->P True True False False