The atmospheric pressure at the surface of venus is 91 times the pressure at sea level on earth. with approximately how much total force would venus's atmosphere push on an average human being at sea level?

Pressure is the force exerted by a gas, a liquid or a solid on a surface (or area) , its unit is Pascal which is equal to and its formula is:

    (1)

Now, we know the atmospheric pressure on Earth at sea level is:

    (2)

And we are told the atmospheric pressure at the surface of Venus is 91 times the pressure at sea level on earth:

    (3)

This means:

    (4)

By solving equation (4) we will find the the atmospheric pressure at the surface of Venus:

    (5)

In order to find the force Venus's atmosphere would push on an average human being at sea level, we have to substitute the value of  in equation (1) and find  , assuming that the surface area of an average human being is :

    (6)

Finally:  

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees. 

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me