the mole of the substance will boiling or freezing point ,
all of it melt or boiled,but the temperature won't change
water boil at 212°F (100°C)
energy remove and it will be ice
if energy is added to the matter
hope you understand!!!!!!!!!!!
Answer:
Final velocity is 181.61 m/s at angle 40.44° below horizontal.
Explanation:
Initial horizontal velocity = 170 cos 35.6 = 138.23 m/s
Final horizontal velocity = 138.23 m/s
Considering vertical motion of projectile:
Initial vertical velocity, u = 170 sin 35.6 = 98.96 m/s
Acceleration, a = -9.81 m/s²
Displacement, s = -208 m
We have v² = u² + 2as
Substituting
v² = 98.96² + 2 x -9.81 x -208
v = 117.79 m/s
Final velocity,


Final velocity is 181.61 m/s at angle 40.44° below horizontal.