Augustine is at an astronomical observatory. He is studying the doppler shifts of distant galaxies. He finds a galaxy that is moving away from the Earth with a speed of 2,417 km/s. How far away is this galaxy (in Mpc)?

Explain vector addition, triangle method and parallelogram method

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.

Atelevision set that has been running for a while heats up even the air around it. which two laws of thermodynamics could be used to analyze this scenario