The highest barrier that a projectile can clear is 12.7 m, when the projectile is launched at an angle 19.0° above the horizontal. What is the projectile's launch speed?

Explanation:

h=((usinx)^2)/2g

12.7=((usin(19))^2)/(2×9.8)

(12.7×2×9.8)=(usin(19))^2

248.92=(usin(19))^2

usin19 =√248.92 =15.78

U =15.78/(sin19)

=48.46m/s> speed

which statement about this sum is true? −245+2.7

the temperature and the pressure affect solubility. temperature affects by changing the properties of the solvent. the increase in pressure increases solubility, the decrease in pressure decreases solubility.