What is thermometer b) types of thermometer

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius

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?

(asap) uneven heating of the earth's surface is due primarily to the position of the equator, north pole, sun, or moon?