Answer:
The firefighter who holds the hose in the backward direction will experience greater force.
Explanation:
Lets take
mass flow rate = m
Inlet velocity = v₁
Exit velocity = v₂
When water leaves in the same direction ,then change in the linear momentum = m (v₂ - v₁)
And we know that change in the linear momentum is known as force.
F₁ =m (v₂ - v₁) ----------1
When water leaves in the opposite direction(U turn) ,then change in the linear momentum = m (v₂ +v₁)
F₂= m (v₂ +v₁) --------2
F₂ >F₁
There fore when water leaves in the U turn pipe will feel more force.
The firefighter who holds the hose in the backward direction will experience greater force.
Answer:
Answer:
15.67 seconds
Explanation:
Using first equation of Motion
Final Velocity= Initial Velocity + (Acceleration * Time)
v= u + at
v=3
u=50
a= - 4 (negative acceleration or deceleration)
3= 50 +( -4 * t)
-47/-4 = t
Time = 15.67 seconds
Answer:304 kg*ms or in ms 84.48 kgm/s
Explanation:
Using the Gay Lussac's Pressure Temperature Law :
P1/T1 = P2/T2
Substituting the values:
Let x be the new gauge pressure.
40/60 = x/90
x = 60 psi.
T<span>he gauge pressure will be 60 psi when the soda reaches 90oF.</span>
Answer:
a Charge flows along a complete conducting path
Explanation: