The type of force that Koi is demonstrating in this position would be: <span>static friction
</span><span>static friction is a type of force that created when a stationary object is placed on the surface where it's resting. It also defined the amount of force you need to overcome before you could move the object</span>
Metalloids are between metals and non-metals. Metals conduct electricity while Non-metals do not. Since metalloids are somewhere in between, then the substance may conduct some electricity. Hope it helps.
Work is being done because picking up a cushion and putting it somewhere is the motion of doing something (work).
Answer:
C. Blueshift
"If a star is moving towards the earth, its light is shifted to higher frequencies on the color spectrum (towards the green/blue/violet/ultraviolet/x-ray/gamma-ray end of the spectrum). A higher frequency shift is called a "blue shift"
Source: http://wtamu.edu/~cbaird/sq/2013/06/27/have-astronomers-ever-observed-a-violet-shift-like-they-have-blue-shifts-and-red-shifts/
Personal water filters solve the problem of having access to safe drinking water anywhere. They are available and affordable. The materials used to make them are durable. They protect, rather than harm, users. Overall, the benefits outweigh the risks.