Planet happy is about 250,000 miles from one of its moons. if you travel at a speed of 6000miles per hour, how many weeks will it take you to get there?

Which of the following represents an upside-down image?

Avoltaic cell converts chemical energy to

Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.