If it take 20 n to move a box, how much power will be needed to move the box a distance of 5meter. in 5 second

Write a question about how changing temperature affects the gas inside the sports ball

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.

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?