A colloid I think. Don’t hold it against me if I’m wrong my dude.
Answer:
a. Ban Freon, aerosol cans, and refrigerants
Explanation:
Explanation:
Given:
u = 20 m/s
a = 5 m/s^2
v = 30 m/s
t = ?
Use the first kinematic equation of motion:
v = u + at
t = (v - u)/a = 10/5 = 2 seconds
Answer:1.27
Explanation:
Given
incident angle 
refracted angle 
Suppose 
is the refractive index of material then using Snell's law we can write
where 
=refractive index of air
Net force is basically the force an object has when changing direction, so the answer would be D.
