NASA is going to launch a rocket to Mars, with the rocket blasting off from the Earth when the Earth and Mars are aligned along a straight line from the Sun. If the Mars is now 60° ahead of the Earth in its orbit around the sun, when should they launch the rocket? All the planets orbit the sun in the same direction and 1 year on Mars is 1.9 Earth-years. Assume circular orbits for the Earth and the Mars.

Atlas V-541

Selecting the Atlas V. NASA selected the Atlas V-541 for the Mars 2020 mission because it has the right liftoff capability for the weight requirements and destination.

Explanation:

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )