F. i hope that helps im sorry if im wrong but that sounds right to me
Answer:
21 hours
Explanation:
well 30 x 20 = 600 than 21 = 630
Answer:
Just as distance and displacement have distinctly different meanings (despite their similarities), so do speed and velocity. Speed is a scalar quantity that refers to "how fast an object is moving." Speed can be thought of as the rate at which an object covers distance. A fast-moving object has a high speed and covers a relatively large distance in a short amount of time. Contrast this to a slow-moving object that has a low speed; it covers a relatively small amount of distance in the same amount of time. An object with no movement at all has a zero speed.
Answer:
Yes, table
Yes, road
No
No, that would be a tension force
Yes, elevator floor
Yes, conveyor belt
Yes, force acts outward perpedicular to ramp surface
No