Question

a place or object bracket (like a stop sign or mailbox) used for comparison to determine if another object is in motion is called a
a) comparison point
b) frame of reference
c) point of view
d) motion detector​

Answer 1

Answer:

a place or object bracket (like a stop sign or mailbox) used for comparison to determine if another object is in motion is called a

a) comparison point

b) frame of reference

c) point of view

d) motion detector