Answer:
Venus has the highest average surface temperature.
When a beam of light is traveling through air and is reflected by a glass surface, then the 2R / (1+R) is the total reflectance through a glass window.
To find the answer, we have to know about reflection.
<h3>
What is reflection by glass surface?</h3>
- Depending on the angle of incidence, the refractive indices of the glass and the light's source, some light is reflected when it strikes a glass surface (e.g., air).
- The Fresnel equations can be used to calculate the percentage of transmitted and reflected light.
- Both the front and the rear of glass reflect the light that is traveling through it. In fact, the light may mirror itself several times. Therefore, 2R / (1+R) is the total reflectance through a glass window.
- These equations predict that ordinary soda-lime window glass will reflect around 8% of the light, assuming a perpendicular incidence angle and no absorption or scattering.
Thus, we can conclude that, when a beam of light is traveling through air and is reflected by a glass surface, then the 2R / (1+R) is the total reflectance through a glass window.
Learn more about the reflection here:
brainly.com/question/5012638
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Many students believe that orbiting astronauts<span> are </span>weightless<span> because they do not</span>experience<span> a force of gravity. ... While this is partly true, it does not explain their sense of </span>weightlessness<span>. The force of gravity acting upon an </span>astronaut<span> on the </span>space<span>station is certainly less than on </span>Earth's<span> surface.</span>
Answer:
2.64 m/s
Explanation:
Given that a 600 kilogram great "yellow" shark swimming to the right at a speed of 3 meters traveled each second as it tries to get lunch. An unsuspecting 100 kilogram blue fin tuna is minding its own business swimming to the left at a speed of 0.5 meters traveled each second. GULP! After the great "yellow" shark "collides" with the blue fin tuna
Momentum = MV
Momentum of the yellow shark before collision = 600 × 3 = 1800 kgm/s
Momentum of the tun final before collision = 100 × 0.5 = 50 kgm/s
Total momentum before collision = 1800 + 50 = 1850 kgm/s
Let's assume that they move together after collision. Then,
1850 = ( 600 + 100 ) V
1850 = 700V
V = 1850 / 700
V = 2.64285 m/s
Therefore, the momentum of the shark after collision is 2.64 m/ s approximately
Phases of matter change by gaining or losing energy. Heat decides the state of matter. ... Liquid ----> Solid This is called freezing process ( liquid needs to be cooled off, example freezing of water, liquid on losing heat to surroundings cools off to form solid. Hopefully this helps. Plze mark me brainiest:)