Data that shows consistent, regular, repetitive form displays a pattern.
true
false

A23 kg log of wood begins from rest, 300 m up a sluice (a water track used to transport logs, think of it as an inclined plane with negligible friction) inclined at 20° to the horizontal. after it reaches the flat waterway at the bottom it collides elastically with a 100 kg block of wood initially at rest near the base of the incline. (a) how long does it take the 23 kg log to travel down the incline? (b) what is the speed of the 23 kg log at the bottom of the incline? (c) what are the velocities of both blocks of wood after the collision? (d) what is the total kinetic energy before the collision? (e) what is the kinetic energy of the 23 kg log after the collision? (f) what is the kinetic energy of the 100 kg block of wood after the collision? (g) what is the total kinetic energy after the collision? (h) compare the total initial and total final kinetic energies. is this consistent with what you would expect for elastic collisions? explain!

Many young black ambitious musicians migrated to harlem around 1940, where they found an alternative music scene in the after-hours that allowed them to play what they wanted to play, experiment with new harmonic concepts, and work on extending the technical mastery of their instruments.

Astudent performs a reaction in a beaker by reaction silver nitrate with one long copper wire. the student’s thermometer changes from 27°c to 35°c. based on this, is this reaction endothermic, exothermic, or neither? explain your reasoning.