3. [-/1 Points] DETAILS OSCOLPHYSZO16 28.3.WA.008. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Fred travels past Alice at a constant speed of 0.991c in the positive X direction. Fred is holding a meter stick at an angle of 33.8 with respect to the +x axis. What is the length (in m) and orientation (in degrees) of the meter stick according to Alice? length m orientation with respect to the x axis Additional Materials D Reading 4. [l1 Points] DETAILS OSCOLPHY52016 28.3.WA.010. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A spaceship, 230 m long as seen on board, moves by the Earth at 0.978c. What is its length (in m) as measured by an Earthbound observer? E m Additional Materials D Reading 5. [/1 Points] OSCOLPHY52016 28.4.WA.012. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A 1400 kg car at rest at a stop sign is rear ended by a 1860 kg truck traveling at a speed of 20.1 m/s. After the collision, the two vehicles are locked together. Alice is moving past the collision site in a frame 5' that is traveling at a constant velocity of 7.24 m/s in the direction of travel of the incident truck. (a) Determine the momentum of the vehicles before the collision in Alice's frame. :kg - m (b) Determine the momentum of the vehicles after the collision in Alice's frame. :kg - m (c) Does Alice conclude that momentum is conserved during the collision? 0 Yes O No 0 cannot be determined Additional Materials U Reading 6. [-/1 Points] DETAILS OSCOLPHYSZO16 28.4.WA.014. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER If a spaceship, approaching the Earth at 0.190c, sends a message capsule toward the Earth at 0.490: relative to the Earth, what is the speed of the capsule relative to the ship? Express your answer in terms of the speed of light, c. :l 6 Additional Materials L3 Reading