10. Johnny is riding his skate board, Johnny weighs 40kg and is traveling at 1m/s. What is Johnny's KE? *
2J
20J
200J
2000J

Which notation is used to represent an alpha particle? a. b. c. d.

If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.

What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight