A cooper rod has length L and diameter D, its resistance is 1 ohm. The wire produced from rod has length 4L and its diameter is D/4. What is resistance of the produced wire?Immersive Reader (1 Point)

64 ohm

48 ohm

32 ohm

24 ohm

12 ohm

Which features on mars point to the possibility of liquid water on the planet? impact craters with sharp rims volcanic cones with craters gullies and stream-like channels mountain ranges with faults

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.

To a of 4 x hz is 1. 0. mm nm nm