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Anonymous users2024-01-24①.She wiped the oil-stained stove with a rag (the greater the pressure, the greater the friction) and found a thin wire to "cut" two pine eggs. (The force area is small and the pressure is strong) The hammer head is loose, and the hammer handle is hit on the ground a few times, and the hammer head is tightly attached to the hammer handle (inertia).
A bottle of yogurt, insert a straw and easily drink the yogurt into your mouth. (atmospheric pressure) When riding a bicycle uphill, push hard twice (conversion of energy, kinetic energy into gravitational potential energy) The upper surface of the wing of the aircraft is convex and the lower surface is flatter ......(The relationship between flow velocity and pressure, where the flow velocity is large, the pressure is small).
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Anonymous users2024-01-23It is possible to drink mineral water.
or cold boiled water.
A. The buoyancy of the cooked dumplings is equal to gravity when they float on the water The option is wrong and does not meet the meaning of the topic B. The boiling point of the liquid is related to the air pressure above the liquid surface, the greater the air pressure, the higher the boiling point, and cooking in a pressure cooker cooks quickly, mainly because the gas pressure in the pressure cooker is strong compared with ordinary pots, and the boiling point of water is high, which is correct; >>>More
Analysis of test questions: A. Clean the oil pan with detergent, and the emulsion is formed, so the detergent has an emulsifying effect, which is correct but does not meet the meaning of the question, so the choice is wrong; B. Gas combustion releases heat, so using a gas stove to fry vegetables is to use internal energy to heat the object, but it is correct but does not meet the topic, so the choice is wrong; C. The "white gas" coming out of the lid of the pot when cooking rice is the small droplets formed by the liquefaction of water vapor in the pot, not the water vapor formed by vaporization, the water vapor is a colorless gas, which is invisible, and the original question is wrong and in line with the question, so the choice is correct; D. Boiling beef in a pressure cooker is easy to boil, because the boiling point of the liquid increases with the increase of air pressure, so the temperature rises, the easier it is to rot the boiled beef, which is correct but does not meet the topic, so the choice is wrong;
Use a range hood.
Try to stir-fry on an induction cooker. >>>More
Use an oil smoke machine.
Try to stir-fry on an induction cooker. >>>More
(1) According to =m
v It can be seen that the volume of soy sauce and peanut oil with the same quality is less than that of peanut oil, so the density of soy sauce is higher than that of oil; >>>More