Students are planning to build a scale model of the outer planets of thesolar system. The table here shows some of the objects the students willuse for their scale model. Based on the information in the table provided, which of the followingrepresentative objects and scaled diameters should they choose for theplanet Saturn?
Softball, 12 cm
Ping pong ball, 4 cm
Beach ball, 30 cm
Soccer ball, 22 cm

Aprojectile is launched horizontally 10m above the ground and with an initial velocity of 15 m/s. a) sketch the trajectory using an appropriate coordination system. b) how long for the projectile to reach the ground. c) how far did projectile travel horizontally before striking the ground. d) determine the projectilex & y position at t-1.3s e) determine the magnitude and direction of projectile velocity at t= 1.3s f) determine the magnitude and direction of projectile acceleration at t-1.3s

Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j

Select all the correct answers. which three statements about electromagnetic radiation are true?