Why do scientists believe the universe is still expanding? a
Distant objects shift in frequency toward RED on the electromagnetic spectrum, which tells us objects are moving away from us

b
Distant objects shift in frequency toward YELLOW on the electromagnetic spectrum, which tells us objects are moving away from us

c
Distant objects shift in frequency toward BLUE on the electromagnetic spectrum, which tells us objects are closer to us us

I can't give you the answer but: The exact size of the universe is unknown. Scientists believe the universe is still expanding outward. They believe this outward expansion is the result of a violent, powerful explosion that occurred about 13.7 billion years ago. This explosion is known as the Big Bang. By looking at an object's electromagnetic spectrum, scientists can determine if an object is moving away from Earth or towards Earth.

we can solve this via the kinematic equation:

where the vertical velocity is zero and so:

since the height of the building is 29.3 meters then:

the ball was in motion for approximately 2.45 seconds

if it is a supervisor that collects all the handmade products the word is you but if it goes straight to the machine made activity there isn't any word unless there is robot programmed to say you.