An astronaut in an experimental high speed spacecraft flies a mission several decades in the future. when the astronaut returns from his mission, instruments on board the spacecraft show that the elapsed time of the mission was 17.154 hours. however, in mission control, the elapsed time for the mission was 17.852 hours. how fast was the spacecraft moving?

Suppose an objects initial velocity is 10m/s and it’s final velocity is 4 m/s. mass is constant. what can best be concluded about the object based in the work-energy theorem

Which one of the following research methods can show cause and effect

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.