The propeller of a world war ii fighter plane is 3.203.20 mm in diameter. a) what is its angular velocity in radians per second if it spins at 13501350 rpmrpm? rad/srad/s b) what is the linear speed of its tip at this angular velocity if the plane is stationary on the tarmac? m/sm/s c) what is the centripetal acceleration of the propeller tip under these conditions? calculate it in multiples of gg.

  concave means having an outline or surface that curves inward like the interior of a circle or sphere. so the mirror curves inward.

Ohm's law tells you that i = v/r where v is equivalent voltage and r is equivalent resistance of the circuit
since all circuits have the same voltage, your question is really asking which circuit has the lowest total resistance, since the lower the resistance, the higher the current
circuit a has a resistance of 5 ohms; circuit c is in series so has a resistance of 10 ohms; circuit b is in parallel and therefore has a resistance of 2.5 ohms (review your notes on adding resistances in parallel and series); therefore b has the highest current