If the atomic number of an element is 6 and its mass number is 18, how many neutrons are in the atom's nucleus?

11. you want to calculate the displacement of an object thrown over a bridge. using -10 m/s2 for acceleration due to gravity, what would be the total displacement of the object if it took 8 seconds before hitting the water?

Asuppose a suitcase has a mass of (m) 30 kg and a net force (n) of 10 kg*m/s. what is the acceleration rate of the suitcasein m/s? show your work to support your answer.

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects