Science The diagram below illustrate the structure of the sun.
Boiling water models which layer of the the sun best

How is the ideal mechanical advantage of a wheel and axle calculated?

If a nissan titan has a mass of 2,300 kilograms how many grams is that

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?