What. is the acceleration of a racing car if it’s speed is decreased uniformly from 66 m/sec to 44 m/sec over an 11 sec period

2 m/s²

Explanation:

Acceleration is change in velocity over change in time.

a = Δv/Δt

a = (66 m/s − 44 m/s) / 11 s

a = 2 m/s²

d is the answer i came up with

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.