I think water vapour is the most important gas for understanding atmospheric processes.
correct me if i am wrong....... :)
Answer:
F = 13.08 N
Explanation:
given,
mass of spreader = 10.9 Kg
angle made with angle = 45.3°
accelerate the spreader to 1.35 m/s in 1.6 s.
Acceleration =
=
= 0.844 m/s²
momentum in = momentum out
F × t = m × v
F×1.125 = 14.175
F = 13.08 N
hence, the force applied by the joe is equal to F = 13.08 N
It is probably gas as pure water starts boiling at 100d degrees C
Answer:
Vf = - 3 [m/s]
Explanation:
To solve this problem we must use the following equation of kinematics.
where:
Vf = final velocity [m/s]
Vo = initial velocity = - 7 [m/s]
a = acceleration = 1 [m/s²]
t = time = 4[s]
Now replacing:
Vf = -7 + (1*4)
Vf = - 3 [m/s]