a converging spherical mirror of radius of curvature 20. ocm is used as a shaving mirror. what is the distance of an object form the mirror if an upright image three times the height of the object produced? draw a ray diagram to illustrate your answer.​

Much of the information taught in earth-space science would not be available if it weren’t for our remote sensing abilities. explain two ways our remote sensing strategies contribute to our knowledge of these topics.

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

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.