Bumper car A ( 281 kg) moving + 2.82 m/s makes an elastic collision with bumper car B ( 209 kg) moving j + 1.72 m/s . What is the velocity of car B after the collision?

When seismic waves hit a fault, the waves are reflected off the fault. seismograph can detect these reflected seismic waves. geologists then use these data to map the fault's length and depth

Despite their crazy structure, human bones are surprisingly good!

The correct answer is waves

Answer/guglielmo marconi