Q. A projetile is fired from an old fortress at a passing pirate ship. The ship is 3000 meters horizontally from the fort and the gun is 50 meters above sea level. The projectile strikes the ship 5.0 seconds after being fired. Determine the speed and direction of the projectile as it strikes the ship?
Q. -Suppose a sound wave and an electromagnetic wave have the same frequency. Which has the longer wavelength?
1. the sound wave
2. It depends on the speed of the sound wave.
3. they have the same wavelength
4. The electromagnetic wave
-If you were to send a beam of laser light to a space station above the atmosphere and just above the horizon, would you aim the laser above, below or at the visible space station?
1. Directly at
2. It depends on the movement of the space station
3. Above
4. Below