14.7 pounds.
Atmospheric pressure is 14.7 pounds per square inch
Keep in mind that unless air is trapped you do not feel this as pressure is equalized
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Weight is the gravitational force exerted on an object. Your mass is the same on earth and the moon or anywhere else. Your weight depends on the gravitational force exerted on your mass and hence on your location.
No. The Earth is round!
The area of the Earth is approximately 7.9*1017 square inches.
because of gravity.
The passive earth pressure occurs when when a wall or plane moves towards earth. This will create additional pressure where as in the case of active pressure wall moves away from earth and it will reduce the pressure on the wall. From the co-efficient of active earthpressure and passive earthpressure,i.e Ka = 1-sin( phi)/1+sin( phi) Kp = 1+sin( phi)/1-sin( phi where phi is the angle of internal friction of soil.