Answer:
water based and solvent based
Explanation:
i need 20 characters to give you this answer, but I'm guessing water displaces grease and solvents chemically react with the grease like a detergent
I don’t know if I’m right but I’m guessing B
Answer:
The external pressure is p = -21.9 psf or p = -8.85 psf
Explanation:
Given :
Velocity of wind, v = 120 mi / hr
(wind direction factor)
= topographical factor (for flat terrain)
= velocity pressure at height h



But for height h = 30 ft,
= 0.98 (from table)

= 36.16
Now,
, so
(from table)

where, p = external pressure
G = 0.85 = gust factor (for typical rigid building)
(internal pressure co efficient)
Therefore putting the values,

p = -21.9 psf or p = -8.85 psf
Answer:
most people cant solve a given problem with anexpected outcome