Adistance between two consecutive troughs in a wave motion train produced in a string is 5 cm. find speed of wave , if two complete waves pass through any point per second

12 drag each label to the correct category. decide whether each statement describes mass or weight. measured in newtons measured in kilograms does not change when gravity changes === a gravitational force changes when gravity changes the amount of matter in something mass weight

Which surface feature of the moon is characterized by mountainous areas? terrae craters maria regolith

Phase changes are chemical changes. true or false