HP 9g hp 9g_user's manual_English_E_HDP1SG18ES1.pdf - Page 18

1. Enter the number you want to convert. 2. Press [ 2nd ] [ CONV ] to display the units menu. There are 7 menus, covering distance, area, temperature, capacity, weight, energy, and pressure. 3. Press [ ] or [ ] to scroll through the list of units until the appropriate units menu is shown, then press [ ] . 4. Press [ ] or [ ] to convert the number to the highlighted unit. Physics Constants You can use the following physics constants in your calculations: Symbol Meaning Value c Speed of light 299792458 m / s g Acceleration of gravity 9.80665 m.s -2 G Gravitational constant 6.6725985 × 10 -11 m 3 kg -1 s -2 Vm Molar volume of ideal gas 0.0224141 m 3 mol -1 NA Avogadro's number 6.022136736 × 10 23 mol -1 e Elementary charge 1.602177335 × 10 -19 C me Electron mass 9.109389754 × 10 -31 kg mp Proton mass 1.67262311 × 10 -27 kg h Planck's constant 6.62607554 × 10 -34 J.S k Boltzmann's constant 1.38065812 × 10 -23J.K -1 IR Gas constant 8.3145107 J / mol • k IF Faraday constant 96485.30929 C / mol mn Neutron constant µ Atomic mass constant 1.67492861 × 10 -27 kg 1.66054021 × 10 -27 kg ε0 Dielectric permittivity µ0 Magnetic permittivity φ0 Flux quantum a 0 Bohr radius µB Bohr magneton µN Nuclear magneton 8.854187818 × 10 -12 F / m 1.256637061 × 10 -6 N A -2 2.067834616 × 10 -15 Wb 5.291772492 × 10 -11m 9.274015431 × 10 -24 J / T 5.050786617 × 10 -27J / T All physical constants in this manual are based on the 1986 CODATA recommended values of the fundamental physical constants. To insert a constant: E-18