Aforce of 80 n is exerted on an object on a frictionless surface for a distance of 4 meters. if the object has a mass of 10 kg, calculate its velocity. v =

If you mix chlorine lithium and nickel together which two elements would be the most reactive

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.

How to know which equation of motion to use where?explain