How does physical fitness best reflect having a scientific foundation (connected to science)?Explain. 6 sentences needed please and thank you

Aproton is projected toward a fixed nucleus of charge +ze with velocity vo. initially the two particles are very far apart. when the proton is a distance r from the nucleus its velocity has decreased to 1/2vo. how far from the nucleus will the proton be when its velocity has dropped to 1/4vo?

Kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energy b. motion energy c. sound energy d. thermal energy

Need asap ‼️ 20 pts which gravitational force field diagram is drawn correctly? (answers in pictures below)