Determine the validity of the following experiment based on the trend of the results. A. Experiment’s results lie close to the best fit line and have no noticeable outliers; it is not reliable.
B. Experiment’s results vary greatly from the best fit line; this variation means the data is reliable.
C. Experiment’s results vary greatly from the best fit line; this variation means the data is not reliable.
D. Experiment’s results lie close to the best fit line and have no noticeable outliers; it is reliable.

(Environmental Science)

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!

Brutus, the dog, is pulling a bone to the left with a force of 20 n. lassie, another dog, is pulling a bone to the right with a force of 18n. what is the net force? a. b. c.

What part of the ear is names after tools, such as the hammer and the anvil?