In SI units ( used for most modern scientific work ), mass is measured in kilograms, speed in metres per second, height is in metres, standard gravity in Metre per second squared, and the resulting energy is in joules.
32.
Where \ ddot \ theta is the angular acceleration of the pendulum, g is the standard gravity on the surface of the Earth, \ ell is the length of the pendulum, and \ theta is the angular displacement measured from the equilibrium position.
33.
Although the symbol is sometimes used for standard gravity, ( without a suffix ) can also mean the local acceleration due to local gravity and centrifugal acceleration, which varies depending on one's position on Earth ( see Earth's gravity ).
34.
However, this is not the sign of a sloppy marker, as a slight pressure on the paintballs in the feed tube can help " unjam " standard gravity-fed hoppers . Some of the most common inline blowback markers are made by Tippmann.
35.
If the actual force of gravity on the object is needed, this can be calculated by multiplying the mass measured by the balance by the acceleration due to gravity either standard gravity ( for everyday work ) or the precise local gravity ( for precision work ).
36.
Some balances can be marked in weight units, but since the weights are calibrated at the factory for standard gravity, the balance will measure standard weight, i . e . what the object would weigh at standard gravity, not the actual local force of gravity on the object.
37.
Some balances can be marked in weight units, but since the weights are calibrated at the factory for standard gravity, the balance will measure standard weight, i . e . what the object would weigh at standard gravity, not the actual local force of gravity on the object.
38.
Likewise, at a radius of 10 m, an orbital period of just over 6 s would be required to produce standard gravity ( at the hips; gravity would be 11 % higher at the feet ), while 4.5 s would produce 2 " g ".
39.
The weight range for each regime is given for water and air at 1 atm pressure and 25 �C . Note though that the weight ( given in terms of mass in standard gravity ) is the weight in the fluid, which is less than the mass times the local gravity because of buoyancy.
40.
Assuming the third CGPM ( 1901, CR 70 ) definition of standard gravity, " g " n = 9.80665 m / s 2, is used to define the pound-force as well as the kilogram force, and the international avoirdupois pound ( 1959 ), one mechanical horsepower is:
