Convert Sun's Radiation Flux Density: 1.64 Langleys/Min - Easy Unit Conversion"

Click For Summary
The discussion centers on converting a radiation flux density measurement of 1.64 langleys per minute. The user seeks clarification on the SI unit for radiation flux density, noting that langleys are defined in calories per square centimeter. There is confusion regarding whether "SI unit" refers to base units or derived units, with an emphasis on understanding radiant flux density as watts per unit area. The user concludes that watts, a measure of radiant flux, are derived from joules per second, linking back to fundamental SI units. The conversation highlights the need for clarity in unit definitions for accurate scientific communication.
badtwistoffate
Messages
81
Reaction score
0
i have to convert radiation flux density measured from the sun that's 1.64 langleys/min. Easy no?
Well, I can't find what the SI unit for radiation flux density is, and its not on google.

Anyone know just what the units is [NOT the conversion]
 
Physics news on Phys.org
also I know the SI for what langley is used for is cal/cm so would the SI be (cal/cm)/s?
 
By SI unit, do they mean the SI base units or just SI units. By definition, radiant flux density would be: Watts per unit area. Area in derived from length which in SI is the meter. Watts is derived from Joules per second, and Joules is derived from Newton meters, with Newtons coming from kilogram meter per second square.
 

Thread 'Magnitude of buoyant force in fluids of different densities'

The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?
View full post »

Similar threads

Fundamental Forces Problem: Acceleration from Planet
  • · Replies 9 ·
Replies
9
Views
2K
Solar Panels and Solar Radiation Flux Density Help - Very Confused
  • · Replies 35 ·
2
Replies
35
Views
6K
Can Geiger Counter Ticks be converted into particle/wave counts?
  • · Replies 12 ·
Replies
12
Views
2K
Convert J/mol k into atm cm^3/mol k
  • · Replies 6 ·
Replies
6
Views
7K
How to Convert Capacitance in cm to Farads for a Transmission Line Experiment?
  • · Replies 4 ·
Replies
4
Views
2K
X-ray Flux density and a differential equation for photon scattering
  • · Replies 13 ·
Replies
13
Views
3K
Energy unit to kelvin, seconds, density, length
  • · Replies 1 ·
Replies
1
Views
2K
Converting Units: Solving a Simple Density Problem
  • · Replies 4 ·
Replies
4
Views
2K
Calculating the reflected power from solar radiation on the moon
  • · Replies 2 ·
Replies
2
Views
3K
Finding the magnitude of the hydrostatic force per unit of circumference
  • · Replies 5 ·
Replies
5
Views
2K