Respuesta :

Answer: D. Time and length

Explanation.
Time is always measured relative to some reference time, so it is relative.
Mass is the matter that defines an object. It could be converted into energy but its quantity does not change, so it is not relative.
Length is a measurement that is compared against a standard, so it is relative.

fnej

Answer:

B. Time, length, and mass

Explanation:

Got it right on the quiz.

"Einstein found that what you measure for length, time, and mass depends on your motion relative to a chosen frame of reference. Everything is in motion. ... All motion is relative to a chosen frame of reference. That is what the word "relativity'' means in Einstein's Relativity theories."

Einstein found that time, length, and mass are relative.

Otras preguntas