<span>Lightbulbs are filled with the element argon and the filaments are made of metallic element tungsten. The argon in the bulb protects the filament from the surrounding air, which would otherwise oxidize the filament. </span>
3 hours or so on your average riding lawn mower. Can depend on the length of the grass and the deck size of mower. Round about... 3 hours.
The correct answer
to this question would be:
<span><span>
A. </span>
No part of your vehicle will extend out into
the traffic lane.</span>
This kind of maneuver only shows your skill
to handle the vehicle in tight spaces, ability to judge distance, and showing control
of the vehicle as you turn into a straight-in parking space.
<span> </span>
Explanation:
Given
Refractive Index 
angle of incident
Light originates in the medium of higher refractive index
Let 
and 
be the incident and refraction angles respectively thus according to snell's law
(b)Ray originates from lighter medium
Answer:
L = 7 [cm]
Explanation:
To solve this problem we must analyze each of the distances mentioned and take into account the number of covers and thicknesses of these.
The worm crosses through the sheets of the first book, this distance can be determined by the following length analysis.
4 = P + 2*C
Where:
P = thicknesses of the pages [cm]
C = thicknesses of each cover [cm]
P = 4 - 2*(0.5)
P = 3 [cm]
The distance crossed was:
L = P + 2C + P "the pages of the first book + 2 covers + the pages of the second book"
L = 3 + (2*0.5) + 3
L = 7 [cm]
