Bokencn
19.05.2021 17:26:55
4 pounds per inch to pounds per foot = 48 pounds per foot more
See full version: Convert pounds per inch to pounds per foot - Conversion of Measurement Units
4 pounds per inch to pounds per foot = 48 pounds per foot more
2 pounds per inch to pounds per foot = 24 pounds per foot more
7 pounds per inch to pounds per foot = 84 pounds per foot [links]
9 pounds per inch to pounds per foot = 108 pounds per foot [links]
8 foot-pound force to inch ounce = 1536 inch ounce here
How many foot-pound force in 1 inch ounce? The answer is 0.0052083333228407.
We assume you are converting between foot-pound force and inch ounce.
You can view more details on each measurement unit:
foot-pound force or inch ounce
The SI derived unit for energy is the joule.
1 joule is equal to 0.73756214927727 foot-pound force, or 141.61193294652 inch ounce.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between foot pounds and inch ounces.
Type in your own numbers in the form to convert the units! more
9 foot-pound force to inch ounce = 1728 inch ounce more
2 foot-pound force to inch ounce = 384 inch ounce more
3 foot-pound force to inch ounce = 576 inch ounce
10 foot-pound force to inch ounce = 1920 inch ounce
The magic number is helpful when you have projectiles going near that velocity. For example, many big bore airguns shoot about that fast, so all you need in order to determine their energy is look at the weight of the projectile they shoot in grains. If someone tells you that his big bore .50-caliber rifle shoots a 180-grain lead ball at 700 f.p.s. and gets 500 foot-pounds of energy at the muzzle, you can now determine in your head that he is wrong. You may not be able to calculate the correct number in your head, but it's going to be a lot closer to 180 foot-pounds than to 500 foot-pounds. here
Want to know how it works?
Multiply the product of the weight of the pellet (in grains) times the square of the velocity and divide that number by 450240. That last number is a constant created by multiplying two times the acceleration of gravity by 7,000 - the number of grains in a pound. The number I am using for the acceleration of gravity is 32.16 f.p.s. That number is obsolete, but the number that replaces it, 32.174 feet per second (f.p.s.) below the 50th latitude, does not change the energy calculation significantly.
Here's how the formula works. Suppose we shoot an 8-grain pellet at 800 (f.p.s.). The energy would be 8 times the square of the number 800, which is 640,000. So, it's 8 times 640,000 - which is 5,120,000. Now, divide that number by the constant 450240 and you get 11.371712. There may be even more digits out to the right of the decimal point, but that's where my small calculator stops, so that's my answer. I'm going to round off the number to two decimal places anyway, so I write it down as 11.37 foot-pounds.
The problem above looks like this when written in mathematical notation: more
Do you want to place this and other populator airgun conversions on your web page or blog? more
You may not care, and it's OK! However in many cases when you read an airgun specification you may see only muzzle energy indicated or only muzzle velocity. While for some people it's irrelevant to some people it matters. For instance some country laws may prohibit ownership or import of air rifles above certain muzzle energy. more
Muzzle energy is simply the energy of a projectile measured at the moment it exits the muzzle of a gun, which is when it is going fastest. With firearms, it's often very difficult to hold the muzzle of the gun next to the start screen of a chronograph. The gases from the blast could blow the screen apart! So, firearms testers are used to backing away from the start screen by about 15 feet. They then apply a formula to their recorded velocity figure to correct for this distance, and they call that number the muzzle velocity, which gives them the muzzle energy from the formula we learned at the start.
Except for big bore shooters, airgunners usually don't have this problem. They can shoot right at the start screen and call the number the chronograph gives them the muzzle velocity. In truth, even that number is a little off, but no one needs to worry about the difference.
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Category: density
Conversion: Pounds Per Cubic Inch to Pounds Per Cubic Foot
The base unit for density is kilograms per cubic meter (Non-SI/Derived Unit)
[Pounds Per Cubic Inch] symbol/abbrevation: (lb/in3)
[Pounds Per Cubic Foot] symbol/abbrevation: (lb/ft3)
How to convert Pounds Per Cubic Inch to Pounds Per Cubic Foot (lb/in3 to lb/ft3)?
1 lb/in3 = 1728.0000004145 lb/ft3.
1 x 1728.0000004145 lb/ft3 = 1728.0000004145 Pounds Per Cubic Foot.
Always check the results; rounding errors may occur. here