Q:
# What Is the Equation to Find Luminosity?

The equation to find the luminosity of a star is the area of the star times its effective temperature times the Stefan-Boltzmann constant. In mathematical terms, this equation can be notated as L ≈ 4πR^{2}σT^{4}.

In the luminosity equation, the area, A, can be found through the formula 4πR², where R is the radius of the star. The effective temperature is derived from the amount of power a star emits based on its surface area. The Stefan-Boltzmann constant is represented by the Greek symbol sigma. It is based on the proportionality wavelengths, temperature and surface area, and is typically expressed in terms of watts, meters and Kelvin.

Learn more about Motion & Mechanics-
Q:
## What Is the Equation for Speed?

A: The most common equation for speed is: speed = distance / time. It can also be expressed as the time derivative of the distance traveled. Mathematically, i... Full Answer >Filed Under: -
Q:
## How Do I Calculate Shear Stress?

A: Shear stress is calculated by dividing the force exerted on an object by that object's cross-sectional area. Shear stress is one of the three primary stres... Full Answer >Filed Under: -
Q:
## Why Is Rolling Friction Much Less Forceful Than Sliding Friction?

A: When an object slides across the ground, it has much more surface area in direct contact with the ground, which means that the amount of friction is signif... Full Answer >Filed Under: -
Q:
## What Is the Way to Calculate Flow Rates in Pipes?

A: To calculate the flow rate in a cylindrical pipe, the basic formula, which is flow rate is equivalent to pipe cross-sectional area multiplied by velocity, ... Full Answer >Filed Under: