What this video , based on what you saw in the video, what parts make up a roller coaster system ?

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

Sunidhi made a study chart about changes in states of matter. which headings best complete the chart?

The stopwatch used by a student to measure velocity of a pulse in a slinky was of least count 0.1 second. he stops the stopwatch when a pulse has made 3 journeys from one end to the other of the slinky. he finds the seconds hand to be at 52nd division. calculate the correct time noted by him.