PHY112 RIO SALADO LESSON 13 QUIZ EXAM QUESTIONS AND ANSWERS LATEST UPDATE 2025  

Which of the following terms is no longer conserved in different inertial frames of reference? - ANSWER-Momentum Person A is on Earth and person B is on a spaceship moving at near light speeds. Which of the following statements regarding the measured times is most accurate? - ANSWER-Each person measures the other person's clock as slow. At what speed must an object move so that its total energy is 10% greater than its rest energy? - ANSWER-42% of the speed of light If an object has a rest energy of approximately 0.51 MeV, the object is most likely - ANSWER-an electron (m = 9.11 x 10-31 kg). Which of the following terms is NOT relativistic (i.e., does not depend on the relative velocities between frames of reference)? - ANSWER-Rest Mass What is the momentum of an object that has a rest mass of 5.0 kg if it travels at 75% of the speed of light? - ANSWER-1.7 x109 kg-m/s