Need fast !
what type of motion occurs when an object spins around an axis without altering its linear position?
a. linear motion
b. rotational motion
c. translational motion
d. vibrational motion

At what time will the interfering waves have an amplitudeof zero?

Name three populations commonly found in a prairie system

Objects a and b are visible in the night sky. six months later they are still visible, but object b shows less parallax than object a. which object is closer? a. a b. b c. you would need to wait another six months in order to figure this out. d. you would need to know the objects' angular diameters in order to figure this out.