Something that is really hot and it steams
Object will only form shadow if it won't reflect light.
That is, stone will form shadow as it reflects light.
Hope this helps you.
Answer:
14.625 years
Explanation:
Because acceleration/deceleration are negligent we can simplify this problem into 2 basic parts:
First: how long before the astronaut arrives? Since the speed of the craft is 0.8 times the speed of light and the distance to travel is 6.5 light-years, the equation to answer this part is:
0.8t=6.5
solve for t by dividing by 0.8
t=6.5/0.8 or 8.125
so, she will arrive in 8.125 years.
Then, once she sends her message, it will travel towards earth at 1 times the speed of light or:
1.0t=6.5 which is just t=6.5
so, her message will arrive back to Earth (8.125+6.5) 14.625 years after takeoff.
Answer:
The particles in the medium of a surface wave move neither longitudinal nor transverse, the particles of the medium in a surface waves undergo circular motion.
<u>Explanation:
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<em>Surface waves are traveled along the surface of the oceans</em>, these particles undergo <em>circular motion these form ripples on the surface of the water. </em>The motion of the particles in the medium gradually decreases from surface to surface. <em>A surface waves are also called as circular waves as the particles of the medium move in circular direction.
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