5. a proposed space station consists of a circular tube that will rotate about its center, like a bicycle
tire. the circle formed by the tube has a diameter of 1.1km. what must be the rotation speed in
revolutions per day, if an effect equal to 0.9 g's is to be felt? (do on back)

the second one and the forth one are in the purple because they are opinions and the rest are in the yellow

explanation:

spectral lines lyman is one set

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.