Which of the following is an example of proper form when walking at a fast pace? plz

The options are

1. Looking down toward the ground
2. keeping chin tucked toward chest
3. Moving hips side to side
4. Swinging both arms freely
You need to look forward, keep chin up and hips straight. So the correct answer is 4. Swinging both arms freely.

hey there! :

mass = 5.75 g

volume = 7.5 cm³

therefore:

density = mass / volume

d = 5.75 / 7.5

d = 0.7 g/cm³

answer c

hope that !