Ingrid is participating in a relay race. While jogging at 9 km/h, she tosses a relay stick at 16 km/h to her
teammate, who is standing still. How fast is the relay stick moving relative to Ingrid?

Afixed electric space heater wired by a cable with an ampacity of 30 a should draw a maximum current of a. 30 a. b. 24 a. c. 15 a. d. 27 a.

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.

Which planet do you think would be easiest for humans to colonize some day?