The closest approach distance between mars and earth is about 56 million km. assume you can travel in a spaceship at 58,000 km/h, which is the speed achieved by the new horizons space probe that went to pluto and is the fastest speed so far of any space vehicle launched from earth. how long would it take to get to mars at the time of closest approach?

The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.