Constant speed because the time is directly proportional to the speed (2). The average speed is 2 m/s
Since we know that
Gravitational potential energy = mass × height ×gravity
then
GPE = 1.5 kg x 0.500 m x 9.8m/s^2
therefore
GPE = 7.35 J
11. Not sure, magnetic fields maybe? 12. Atmosphere 13. Rotation about the axis and wobble 14. Asteroids 15. Comets
1.4 m/s im in 12th grade did this so this should be right
Answer:

Explanation:
As we know that electrostatic potential energy of the electron is converting here into kinetic energy
so we will have

so here we know that



so from above equation we have


