Search results
Results from the WOW.Com Content Network
Introduced in 1872, 68-pounders adapted in this way had a calibre of 6.29 inches (16.0 cm) and were known as a RML 68-pounder, or officially as the RML 80-pounder 5 ton. [28] With a 10 lb (4.5 kg) powder charge they could fire an 80 lb (36 kg) projectile at a muzzle velocity of 1,240 feet per second (380 m/s). [29]
15 psi Standard atmospheric pressure for Earth sea level (14.7 psi) [34] 150 to > 550 kPa: 25 to > 80 psi Impact pressure of a fist punch (approximate) [citation needed] [56] +180 to +250 kPa +26 to +36 psi Air pressure in an automobile tire relative to atmosphere (gauge pressure) [citation needed] +210 to +900 kPa +30 to +130 psi
The pound per square inch (abbreviation: psi) or, more accurately, pound-force per square inch (symbol: lbf/in 2), [1] is a unit of measurement of pressure or of stress based on avoirdupois units and used primarily in the United States. It is the pressure resulting from a force with magnitude of one pound-force applied to an area of one square ...
The ground pressure of motorized vehicles is often compared with the ground pressure of a human foot, which can be 60 – 80 kPa while walking or as much as 13 MPa for a person in spike heels. [3] Increasing the size of the contact area on the ground (the footprint) in relation to the weight decreases the unit ground pressure.
Medley – 125 kg (276 lb) barrel, 125 kg (276 lb) tyre, 125 kg (276 lb) sack & 200 kg (441 lb) duck walk in a 30m course – 34.59 seconds (2015 Europe's Strongest Man) (world record) [116] Medley – 140 kg (309 lb) in each hand farmer's walk & 180 kg (397 lb) Húsafell replica carry in a 40m course – 34.75 seconds (2013 SCL Brazil) (world ...
Since a pound of force (pound force) accelerates a pound of mass at 32.174 049 ft/s 2 (9.80665 m/s 2; the acceleration of gravity, g), we can scale down the unit of force to compensate, giving us one that accelerates 1 pound mass at 1 ft/s 2 rather than at 32.174 049 ft/s 2; and that is the poundal, which is approximately 1 ⁄ 32 pound force.
Estimates for the draw of these bows varies considerably. Before the recovery of the Mary Rose, Count M. Mildmay Stayner, Recorder of the British Long Bow Society, estimated the bows of the medieval period drew 90–110 pounds-force (400–490 newtons), maximum, and W. F. Paterson, Chairman of the Society of Archer-Antiquaries, believed the weapon had a supreme draw weight of only 80–90 lb f ...
31,000 psi Compressive yield strength 414 MPa 60,000 psi Fatigue strength (reverse bending 5x10 8 cycles) 48 MPa 7,000 psi Hardness 97 Brinell Modulus of elasticity 96 GPa 14,000,000 psi Physical properties Solidification range (melting range) 381—387 °C 718—729 °F Density 6.7 g/cm 3: 0.24 lb/in 3: Coefficient of thermal expansion 27.4 ...