In position A
<em>The</em><em> </em><em>mirror </em><em>has</em><em> </em><em>to</em><em> </em><em>be</em><em> </em><em>observed</em><em> </em><em>in</em><em> </em><em>the</em><em> </em><em>ray</em><em> </em><em>reflected</em><em> </em><em>from</em><em> </em><em>the</em><em> </em><em>mi</em><em>rror</em><em>.</em>
<em>Since</em><em> </em><em>the</em><em> </em><em>the</em><em> </em><em>angle</em><em> </em><em>of</em><em> </em><em>reflec</em><em>tion</em><em> </em><em>is</em><em> </em><em>equal</em><em> </em><em>to</em><em> </em><em>the</em><em> </em><em>angle</em><em> </em><em>of</em><em> </em><em>incidence</em><em>,</em><em> </em><em>the</em><em> </em><em>reflected</em><em> </em><em>ray</em><em> </em><em>must</em><em> </em><em>be</em><em> </em><em>in</em><em> </em><em>equal</em><em> </em><em>path</em><em> </em><em>as</em><em> </em><em>the</em><em> </em><em>incident</em><em> </em><em>ray</em><em>.</em>
<em>That</em><em> </em><em>phenomenon</em><em> </em><em>is</em><em> </em><em>only</em><em> </em><em>in</em><em> </em><em>diagram</em><em> </em><em>A</em>
Answer:
0.088 seconds
0.0880000273785 second
0.08800054757 seconds
Explanation:
In the question it is given each century adds 1 ms to a day due to the slowing rotation of the Earth
In 88 centuries the length of the first day of the year will be
88 × 1 = 88 ms = 0.088 seconds
1 ms = 1 century
1 century = 100 years × 365.25 days
⇒1 ms = 36525 days

Sum of the gain on the first day would be
0.088 + 2.7378×10⁻⁸ = 0.0880000273785 second
Sum of the gain on the second day would be
0.088 + 2.7378×10⁻⁸+2.7378×10⁻⁸ = 0.08800054757 seconds
Floodplains are landscapes shaped by running water. As streams and their larger forms, rivers, flow across the surface of land, they transport eroded rock and other material. (Erosion is the gradual wearing away of Earth surfaces through the action of wind and water.) At points along that journey, when their flow slows, the material they carry is dropped to create what are termed depositional landforms. Among these landforms are deltas and floodplains.
Read more: http://www.scienceclarified.com/landforms/Faults-to-Mountains/Floodplain.html#ixzz7BNHuUb00
Answer:
A time that is less than half an hour
Explanation:
it says velocity is positive so it would yield to a negative acceleration