Initial State: A ski jumper is at rest at the top of a ski run. Final State: A few seconds after using the poles to propel herself forward, she is
at the low point preparing to launch into her jump
Notes: The system includes the skis, the jumper, and the Earth. There is friction
acting between the ski jumper and the ski slope.
02
Directions: Tap Earrows to adjust bar heights. Tap on system to show direction of energy transfer (if
any). Tap on energy transfer arrows to adjust amount.
Tap below to ID the dir'n of
Initial State E transfer across the Final State
system boundary.
EK E, Ech
EK E, Eint
Pro
#5
System:
Skis-Jumper-Earth
Tap for
Vie
0 0 0
? E Symbols
1
0 0 0
System Arrows (?)
TO
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what are the statements? x

gans

explanation:

vestigial organs (like your appendix) are organs that no longer serve a purpose.

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia