Jessica's kettle is old and a bit temperamental. She decided to buy a new smarter plastic kettle. On starting the wire Jessica noticed that her new kettle has only two wires . The wire that would be connected to a pin named A was missing. I. Give the possible name of the pin A?
ii. What is the purpose of the wire attacked to pin A.
iii. Explain why this wire is not necessary for her new kettle.

the correct choice is a .

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an energy transformation flow diagram is shown

where is it ?

the answer is kevlar

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west