An iron rod has a length of 50m when the temperature is 20 C, By how much will it expand when the temperature rises to 30 C. Takeα=1.2 × 10-5k-1.

Ingrid wrote the hypothesis below. if the temperature of a liquid increases, the density of the liquid decreases because the particles move farther apart. what are the variables in her hypothesis?

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!

Which property is expressed in distance units? o a. period o b. wavelength o c. speed o d. frequency