Atrain goes forward at a speed of 1m/s for 20 seconds then it stops and goes backward at a speed of 0.5 m/s for 4 sec after both movements are completed how far is the train located from its starting point notewe are asking for the trains final location not the total distance traveled

The magnitude, m, of an earthquake is defined to be m=log l/s, where i is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and s is the intensity of a “standard” earthquake, which is barely detectable. what is the magnitude of an earthquake that is 1,000 times more intense than a standard earthquake? use a calculator. round your answer to the nearest tenth.