0
Add your answer:
Earn +20 pts
Which will exert more pressure river water or same amount of sea water?
Salt water is denser, and therefore will exert more pressure (for two columns of the same height).
Which needles are made to exert more pressure?
Pressure exerted
Will you exert more pressure when you stand on your toes or when you stand flatfooted?
on your toes
Does a gymnast exert more pressure on the floor when she does a handstand or when she does a split?
The gymnast exerts more pressure by doing the split because she has a bigger surface.
Does someone wearing high heels exert more pressure then someone wearing Wellington boots?
The high heels will exert more pressure per unit area (per square inch, per square centimeter, etc.), because they distribute the weight over a smaller area of contact.
Which will exert more pressure river water or same amount of sea water?
Salt water is denser, and therefore will exert more pressure (for two columns of the same height).
Why does water exert more pressure than air?
Water is more dense than air is.
Why water cannot be used in simple barometer?
Following are the reasons why mercury and not water is used in a barometer:1. Mercury is relatively denser than water, consequently the length of the column of water would have to be about 34 feethigh to exert pressure equal to that of the atmosphere while the column of mercury need to be only 30 inches to exert pressure equal to that of the atmosphere.2. Mercury has a very low vapor pressure when compared to that of water. So it is more sensitive than water to the changes in the atmospheric pressure and rises more quickly to record the changes in the atmospheric pressure.3. Mercury's freezing point is much lower than that of water's so it can record the atmospheric pressure at temperatures below that of 0 degrees centigrade.4. Mercury does not evaporate easily so very little mercury vapor enters the vacuum above the mercury in the tube.5. Mercury being a metal shines brightly and so can be used to read the markings on the tube easily.
As someone goes dives deeper in a ocean they have more PSI acting upon them If this ocean was mercury would the same pressure be greater or less?
Pressure in a fluid at a certain depth H is proportional to the density of the fluid. Since Mercury has a much higher density then water it will exert a much larger pressure at the same depth.
Why is mercury preferred to alcohol in barometer?
Mercury has a very low vapor pressure. Vapor pressure is the pressure exerted by the gaseous form of a liquid on the liquid itself when both states are in equilibrium. A higher vapor pressure means (which is known as a volatile substance ← [this statement is unclear and seemingly unrelated. I cannot determine its relevance, but perhaps it can help you]) more pressure is exerted by the ambient atmosphere on the liquid and hence it cannot rise easily to denote the pressure increase. Hence liquids with low vapor pressure are usually preferred as they can rise easily or they can show more sensitivity. Water has a relatively high vapor pressure, and thus is not as sensitive to changes in pressure as mercury is.This is why when we measure pressure with water, we divide the water level change by 13.6, which is the ratio of the density of HOH to the density of Hg. Our answer changes from the non-standard pressure measurement in milimetres of HOH to the commonly-used milimetres of HgFollowing are the reasons why mercury and not water is used in a barometer:1. Mercury is relatively denser than water, consequently the length of the column of water would have to be about 34 feethigh to exert pressure equal to that of the atmosphere while the column of mercury need to be only 30 inches to exert pressure equal to that of the atmosphere.2. Mercury has a very low vapor pressure when compared to that of water. So it is more sensitive than water to the changes in the atmospheric pressure and rises more quickly to record the changes in the atmospheric pressure.3. Mercury's freezing point is much lower than that of water's so it can record the atmospheric pressure at temperatures below that of 0 degrees centigrade.4. Mercury does not evaporate easily so very little mercury vapor enters the vacuum above the mercury in the tube.5. Mercury being a metal shines brightly and so can be used to read the markings on the tube easily.
Which needles are made to exert more pressure?
Pressure exerted
Why do fluids exert more force the deeper you go?
imagine that all the air around you is puting pressure on you. Then, when you go into a fluid, you can feel the pressure of the air and the water. The deeper you go, the more pressure is on top of you and eventually, you will get crushed.
Will you exert more pressure when you stand on your toes or when you stand flatfooted?
on your toes
Will you exert more pressure when you stand on your toes or when you stand flat footed?
Total pressure is the same in either case, but on your toes, you exert more pounds per square inch, on fewer square inches.
Why does a pointed heal shoe exert less pressure?
Sorry - it exerts more pressure than a flt heel.
Does a gymnast exert more pressure on the floor when she does a handstand or when she does a split?
The gymnast exerts more pressure by doing the split because she has a bigger surface.
Why does dry gas exert more pressure than moist gas?
I wonder who said it did. Did he realise that some gases might weigh more than the water which is contained in moist gases?
