Answer:
the speed of the fluid in the wider section of the pipe is 1m/s.
Explanation:
By equation of continuity we can write (for ideal (non-viscous, in-compressible).
A_1,A_2 are areas of the pipe at inlet and outlet of the pipe.
_1
Here, d_1 , d_2 are diameters of inlet and outlet, also v_1, v_2 are velocities at inlet and outlet.
putting values we get
solving we get
Refer to the diagram shown below.
m = 1.0 kg
Let R = resistive force of the water.
The boat accelerates from rest to 0.20 m/s in 0.50 s. Its acceleration is
a = (0.20 m/s)/(0.50 s) = 0.40 m/s²
The driving force on the boat is Fcos(45°) - R. Therefore
(2cos(45°) - R N) = (1 k)*(0.4 m/s²)
1.4142 - R = 0.4
R = 1.0142 N
Answer: The resistive force of the water is 1.0 N (nearest tenth)
Answer:
In a representative democracy, people elect representatives to make political decisions and pass laws for them. In a direct democracy, people make all political decisions and pass laws themselves. … Government affects all aspects of people’s lives.
Explanation:
Answer:
Explanation:
work done on an ideal gas, PV = - nRT
since the pressure is constant PΔV = - nRT
where n, number of moles = 0.240 mol, R, gas constant = 8.314 J/mol K
work done = - nR ( T₂ - T₁) = 0.24 mol × 8.314 ( 270 - 15) = -508.8 J
Answer:
Final velocity = 16 m/s
Total distane travelled = 390 m
Explanation:
We can use equation of motion to solve this: