fermi quesitons

Mass of the Sun

2E30 kg

Radius of the Sun

7E5 km

Radius of Mercury

2.5E3 km

Mass of Mercury

3E23 kg

Radius of Venus

6E3 km

Mass of Venus

5E24 kg

Mass of the Earth

6E24 kg

Radius of the Earth

6E3 km

Radius of Mars

3.5E3 km

Mass of Mars

6.5E23 kg

Radius of Jupiter

7E4 km

Mass of Jupiter

2E27 kg

Radius of Saturn

6E4 km

Mass of Saturn

6E26 kg

Radius of Uranus

2.5E4 km

Mass of Uranus

9E25 kg

Radius of Neptune

2.5E4 km

Mass of Neptune

1E26 kg

Radius of Pluto

1.2E3 km

Mass of Pluto

1.3E22 kg

Orbital Radius of Mercury

5.5E7 km

Orbital Radius of Venus

1E8 km

Orbital Radius of Earth

1.5E8 km

Orbital Radius of Mars

2.5E8 km

Orbital Radius of Jupiter

8E8 km

Orbital Radius of Saturn

1.5E9 km

Orbital Radius of Uranus

3E9 km

Orbital Radius of Neptune

4.5E9 km

Orbital Radius of Pluto

6E9 km

Distance to Betelgeuse

6.5E2 lightyears

Radius of Betelgeuse

7E8 km

Distance to Rigel

9E2 lightyears

Radius of Rigel

5E7 km

Distance to Polaris

4E2 lightyears

Radius of Polaris

3E7 km

Distance to Alpha Centauri

4.5E0 lightyears

Mass of the Moon

7E22 kg

Radius of the Moon

1.7E3 km

Density of the Moon

3E3 kg/m^3

Orbital Radius of the Moon

4E5 km

Average Density of the Sun

1.5E3 kg/m^3

Luminous Intensity of the Sun

4E26 W

Translational Orbital Speed of the Moon

1E0 km/s

Radius of VY Canis Majoris

1.5E9 m

Translational Velocity of the Earth

3E1 km/s

Sun Translational Velocity (Galaxy)

2E2 km/s

Orbital Radius of the Sun (Galaxy)

2.5E17 km

Average Density of the Earth

5E3 kg/m^3

Number of Artificial Satellites of Earth

8E3.

Radius of Geosynchronous Orbit on Earth

4E4 km

Age of Earth

5E9 years

Radius of Humanity's Radio Bubble

6E19 m

Density of a Neutron Star

5E17 kg/m^3

Chandrasekhar Limit

3E30 kg

Mass of the Milky Way

1E42 kg

Mass of the Observable Universe

6E52 kg

Velocity of the ISS

8E0 km/s

Mass of the ISS

4E5 kg

Mass of an Electron

9E-31 kg

Mass Equivalent of a Photon

4E-40 kg

Mass of an Electron Neutrino

3.5E-36 kg

Diameter of a Proton

1.5E-15 m

Radius of an Electron

3E-15 m

Radius of a Carbon Atom

7E-11 m

Radius of a Hydrogen Atom

3E-11 m

Charge of a Proton

1.6E-19 C

Density of Iron

7E3 kg/m^3

Density of Gold

2E4 kg/m^3

Density of Diamond

3.5E3 kg/m^3

Density of Graphite

2E3 kg/m^3

Density of Copper

9E3 kg/m^3

Density of Lead

1E4 kg/m^3

Density of Nickel

9E3 kg/m^3

Wavelength of Gamma Radiation

1E-12 m

Wavelength of X-Rays

1E-10 m

Wavelength of Ultraviolet Radiation

1E-8 m

Wavelength of Visible Light

5E-7 m

Wavelength of Infrared Radiation

1E-5 m

Wavelength of Microwave Radiation

1E-2 m

Wavelength of FM Radio Waves

1E0 m

Wavelength of AM Radio Waves

1E4 m

Avogadro's Number

6E23 particles/mole

Planck's Constant

6.5E-34 J s

Planck Length

1.6E-35 m

Planck Time

5E-44 s

Boltzmann's Constant

1.5E-23 J/(mol K)

Stefan-Boltzmann Constant

5.5E-8 W/(m^2 K^4)

Coulomb's Constant

9E9 (N m^2)/kg^2

Gravitational Constant

6.5E-11 (N m^2)/kg^2

Permittivity of Free Space

9E-12 (A^2 s^4)/(kg m^3)

Permeability of Free Space

1.3E-6 (m kg)/(s^2 A^2)

Stone (mass)

6.5E0 kg

Hectares (area)

1E4 m^2

BTU (heat)

1.1E3 J

Grain (kg)

6.5E-5 kg

Troy Oz. (kg)

3E-2 kg

Planck Area

2.5E-70 m^2

Barn

1E-28 m^2

Typical Mass of a Human

6E1 kg

Surface Area of the Skin

2E0 m^2