Their inferences are based on evidence that they collect during their investigations. Readers learn that scientists gather and interpret evidence and draw conclusions based on this evidence. ... Once scientists have gathered evidence, they use it to make inferences about the things they are investigating.
If the friction force and pulling force are equal, then there's no acceleration, and the crate slides at a constant speed.
The rotation of the Earth causes this movement. We watch stars rising in the East, passing overhead, and setting in the West as the Earth spins eastward at over one thousand miles per hour. The Sun, Moon, and planets appear to travel through the sky in the same way as the stars do.
Answer:
-2.67 m/s²
Explanation:
a = Δv / Δt
a = (14 m/s − 30 m/s) / (6 s − 0 s)
a = -2.67 m/s²
Here is for #2.
Answer:
She has a Velocity of 4.0
Explanation:
Δv = ΔM /m
So in our case is is Δ4.000 = Δ220 /55