A spring with a spring constant of 8N/m is stretched a displacement of 1.8mho the right. What force does the spring exert?

A1kg cart slams into a stationary 1kg cart at 2 m/s. the carts stick together and move forward at a speed of 1 m/sl. determine whether kinetic energy was conserved in the collision. use the law of conservation of energy to explain the collision

The electronic structure or chlorine is 2.8.7 what is the electronic structure of fluorine?

Petroleum contains energy. a. light b. kinetic c. chemical d. mechanical