<span>procedure would most likely help determine a chemical property of the substance is : exposing it to a flame to see if it catches on fire
Chemical property is the characteristic that a substance has that differntiate it with another substance. The most common charatcteristics that most scientists wanted to know are :
- It's flamability
- It's radioactivity
- Its toxicity
By throwing the object into fire, we will easily find out these 3 characteristics</span>
Answer:
Initial velocity is 0 .. ( since it is just dropped)
now using V²= u² +2gh
=> (Vfinal)² = 0+2*10*20
=> v² = 20*20 = 400
=> v = √400 = 20m/s
for time taken
use V = u+gt
=> t = V/g = 20/10 = 2sec
This occurs due to convection! warm air (and water) rises and the cold sinks!
Answer:
Length of the ramp, l = 31.22 feet
Explanation:
It is given that,
A doorway is 2.45 ft above the ground, AB = 2.45 ft
Angle between the ground and the ramp is, 
Applying trigonometry,
AC = 31.22 ft
So, the length of the ramp is 31.22 feet. Hence, this is the required solution.
