Recent content by brick

Homework Statement Well gravity's acceleration on objects is 9.8 m/s^2 and the question is why the Atwood Wheel moves faster as the mass on side is increased. Homework Equations N/A The Attempt at a Solution I am thinking it has something to do with inertia and the torque of the...

Homework Statement A submarine pings its sonar and 9 seconds later hears an echo, the signature of which indicates a battleship. Ten seconds later, the ping takes 8 seconds to echo back. The submarine is traveling at 10 m/s towards the battleship. The battleship is directly in front of the...

Homework Statement An approaching tank fires at you and you hear the sound 3 seconds after the muzzle flash. Ten seconds later the same tank fires again and you hear the sound 2 seconds after the flash. The temperature is 100 degrees Celsius. How fast is the tank going? How long until he...