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.

A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?

Determine the maximum r-value of the polar equation r =3+3 cos 0

Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.