If the motion of an object is in a leftward direction, what is the direction of the
friction force?

Answer Choices:
Left
Downward
Upward
Right

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

What word chemical equation describes cavendish’s experiment with zinc?

Atrain is traveling at 30.0 m/s relative to the ground in still air. the frequency of the note emitted by the train whistle is 262 hz. the speed of sound in air should be taken as 344 m/s. what frequency (f approach) is heard by a passenger on a train moving at a speed of 18.0 m/s relative to the ground in a direction opposite to the first train and approaching it? what frequency (f recede) is heard by a passenger on a train moving at a speed of 18.0 m/s relative to the ground in a direction opposite to the first train and receding from it?