A 400-kilogram cannon fires a 10-kilogram cannonball at 20 m/s. If the cannon is on wheels, at what velocity does it move backward? (This backward motion is called recoil velocity.)

How does convection affect our atmosphere? our layers of earth? our oceans?

Which feature of a heating curve indicates a change ofn state

Daughter element the new element produced along with a decay particle in a nuclear transmutation 2. half-life the substance that decays in a nuclear transmutation 3. parent element the change of one chemical element into another by nuclear decay or radioactive bombardment 4. transmutation the time required for the decay of one-half of the atoms in a sample of radioactive material