please help me solve this, i dont understand this topic
(03 3 / 16 / 2019 11:59 PM ( 0 /3Grac{ Print* Calculator_ !| Periodic Table*Question 1 of 2Sapling LearningMap {macmillan learning*What is the wavelength of the matter wave associated with a proton moving at 339 m/s ?*NumberIn… With a 165 – kg astronaut ( including her spacesuit ) moving at the same speed ?"NumberIn… With Earth moving along its orbit around the Sun ?*Number117