1 An 850 kg cannon containing a 14.0 kg cannonball is at rest. The cannon fires the cannonball to the right with a velocity of 85.0 m/s. Find the recoil velocity of the cannon.

Iwould say earthquakes.

Idon't  know if i got it wrong but i picked ( a )

Aself-report inventory  is a type of  psychological test  used in personality assessment. this type of test is often presented in a paper-and-pencil format or may even be administered on a computer. a typical self-report inventory presents a number of questions or statements that may or may not describe certain qualities or characteristics of the test subject.