View History Bookmarks Profiles Tab Window Help Q Test (Remotely O X + allearning.instructure.com/courses/4215/quizzes/secured#lockdown Google Keep Formative G Gizmo Dashboard Biology 12 Drive New folder 12023 p O wor 100% Its D Question 7 4 pts 36 A spacecraft is moving towards a planet at a speed of 1.5 x 108 m/s. It fires a particle at the planet that is moving at a speed of 0.5 x 108 m/s relative to the ship. What is the speed that an inhabitant of the planet would observe the particle approaching at? Edit View Insert Format Tools Table file 12pt Paragraph B I U A V Q V T V : JUN 12 MacBook Air KK DII DD F3 FA F5 F6 F7 F8 FO F10 # * Ro O - 8Question 4 4 pts A particle is moving at a speed of 0.82c. An observer that is stationary relative to a desk sees it travel across the desk that is 3.3m wide in their frame of reference. How wide is the desk from the particles frame of reference? Edit View Insert Format Tools Table 12pt Paragraph B I U A BY TV : 4 6 0 0 12 JUN MacBook Air 20 Q O G O - A OO E R T Y U 0