Suppose you are on a conveyor belt walkway at an airport. the walkway is moving at 0.50 m/s. you walk backward at 0.80 m/s to hand your suitcase to a friend who is 3.0 m behind you. a security guard stands alongside the walkway watching this. what is your speed relative to the guard?

a. 0.50 m/s
b. 1.30 m/s
c. 0.30 m/s
d. 0.80 m/s

Imagine you are riding on a yacht in the ocean and traveling at 20 mph. you then hit a golf ball at 100 mph from the deck of the yacht. you see the ball move away from you at 100mph, while a person standing on a near by beach would observe your golf ball traveling at 120 mph (20 mph + 100 mph). now imagine you are aboard the hermes spacecraft traveling at 0.1c (1/10 the speed of light) past mars and shine a laser from the front of the ship. you would see the light traveling at c (the speed of light) away from your ship. according to einstein’s special relativity, how fast will a person on mars observe the light to be traveling? a) 0.1c (1/10 the speed of light) b) c (the speed of light) c)1.1c (c+0.1c)

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same

Ablue car pulls away from a red stop-light just after it has turned green with a constant acceleration of 0.5 m/s 2 . a green car arrives at the position of the stop-light 6.5 s after the light had turned green. if t = 0 when the light turns green, at what time does the green car catch the blue car if the green car maintains the slowest constant speed necessary to catch up to the blue car? answer in units of s.