Since your weight remains constant, the only variable is the area. Pressure is the ratio of Force to Area, implying that the larger the area the smaller the pressure and vice versa. Since lying down translate into occupying a larger area than when standing up, a lower pressure is exerted on the floor while lying compared to when standing on the floor.
Salt water is denser, and therefore will exert more pressure (for two columns of the same height).
Because your feet are not accelerating, the force exerted by the floor upon your feet must be exactly the same as the force exerted by your feet on the floor. If you are standing, the amount of force exerted by your feet, and thus the amount of force exerted by the floor, is equivalent to your weight.
external pressure is pressure that other things exert on you
yes
Pressure exerted
Personally i am a dancer and i do, do pointe when standing on the amount of pressure that you excert depends on how many years you have been training i am 12 and on one toe the pressure is not that big because you have the toe padding which takes most of the pain away so the pressure really isn't that great.
Yes
Salt water is denser, and therefore will exert more pressure (for two columns of the same height).
Because your feet are not accelerating, the force exerted by the floor upon your feet must be exactly the same as the force exerted by your feet on the floor. If you are standing, the amount of force exerted by your feet, and thus the amount of force exerted by the floor, is equivalent to your weight.
Vapor materials exert their pressure in just about every direction
athmospheric pressure
external pressure is pressure that other things exert on you
When the vacuole of plant cells absorb too much water, it swells so big, that it squashes the cytoplasm, and begins to exert pressure on the cell wall. This pressure is known as turgor pressure.
yes
idek
Pressure exerted
The person of mass (m) exerts the same force on the ground both standing up and lying down. This can be easily seen through Newtons Second Law ie F = ma. Knowing that pressure is defined as force over area (P = F/Area), it can be seen that the person standing up is applying more pressure to the ground.