rorycampbell0721 rorycampbell0721

01-03-2021
Chemistry

contestada

How many times as bright as a light that is 90 m away from you does a light that is 10 m away from you appear?

Respuesta :

Supernova11 Supernova11

02-03-2021

Answer:

81 x as bright

Explanation:

The intensity of light is dependent on distance according to this simple equation:

(90/10)^2 = 9^2

= 81

This was derived from the inverse-square law. Respectively a light that is 10 m away from you is 81 x as bright.

Answer Link

Otras preguntas

What is the most likely consequence for a human of not spending at least 20 minutes a day with a portion of one's skin exposed to the sun? Digestion could slow

Fill in the blank The different types of contract are express contract, BLANK contract, unilateral contract, and bilateral contract. NextReset

find the volume of the sphere

Lorena and Deshawn are both collecting money for a local charity. The donation amounts that Lorena has collected are shown in this set: (1,1,1,2,3,5,5,5,5,5,10,

Help ASAP! Nobody has the right answer to this! Christina is randomly choosing 3 movies to take on vacation from 9 action movies, seven science fiction movies,

Calculating Currency Exchange Raj is visiting the United States and needs to convert 2,000 rupees to US dollars.

Compute the amount of interest earned in the following simple interest problem. A deposit of $7,000 at 8.5% for 120 days.

The mean of a normally distributed dataset is 12, and the standard deviation is 2. % of the data points lies between 8 and 16.

what were the two groups that battled for power in southern Africa.

A water tank is being drained at a steady rate. The initial level of the water in the tank was 5.5 feet. The graph below shows the water level over time as the