A spring loaded launcher launches a 10 g ball into the air. The ball reached a maximum height of 1 m above the point where it rests on the compressed spring before launch. The spring constant of the spring in the launcher is 19.6 N/m. What is the distance the spring is compressed? (Work/explanation appreciated. Please don’t just take the points and run.)

The act of moving from one place to another. a. locomotor b. aerobic c. stationary d. static

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.

The least penetrating form of radiation is