A racing car accelerates uniformly from rest along a straight track. This track has markers spaced at equal distances along it from the start, as shown in the figure.
The car reaches a speed of 140 km/h as it passes marker 2.
speed=0
speed = 140 km/h
Start
Marker
Marker 2
20. Where on the track was the car when it was traveling at half this speed, that
is at 70 km/h
a. Before marker 1
b. At marker 1
c. Between marker 1 and marker 2

However, had it been a real sound, the sound's pitch would have been increased by the doppler effect, since the falcon was moving the source of the sound. perpendicular to away from towards at the same speed as

Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?

Simon is writing a story about an astronaut whose spacecraft has been boarded by space pirates. the astronaut has her lucky penny in her hand behind her back as the space pirates break into the control room. she has just locked the controls so that the ship is accelerating in the direction of the control room’s ceiling. simon wants the astronaut to use the penny to hit a button on the control panel to turn off the lights and escape. the button is located a short distance behind and below the astronaut’s hands. how should simon use the theory of relativity to describe what the astronaut must do in order to hit the button?