Answer:
The gauge pressure as calculated is 5862.36 Pa
Solution:
As per the question:
Radius, r = 1 cm = 0.01 m
Length, l = 60 cm = 0.6 m
Velocity of discharge of fluid from the mouth, v = 1.5 m/s
Now,
By using the continuity equation:
Av = A'v' (1)
where
A = Area of the mouth
A' = Area of the tube
v' = Velocity of the fluid inside the stomach
Since, the question assumes the stomach, mouth and esophagus as continuous vertical tube, then:
A = A'
Thus
From eqn (1):
v = v' = 1.5 m/s
Now,
With the help of Bernoulli's equation:
where
h - h' = l = 60 am = 0.6 m
P = Pressure at mouth = 1 atm = 
g = acceleration due to gravity
Density of water, 
P' = Pressure inside the stomach
P' - P = Gauge Pressure
Answer:
a unit of pressure defined as 101325 Pa
Explanation:
B. Magnetic force-attraction or repulsion that arises between electrically charged particles because of their motion. It is the basic force responsible for such effects as the action of electric motors and the attraction of magnets for iron. Electric forces exist among stationary electric charges; both electric and magnetic forces exist among moving electric charges. The magnetic force between two moving charges
may be described as the effect exerted upon either charge by a magnetic field created by the other.
Kinetic energy: the energy of motion
Work: the change in kinetic energy
Power: the rate of work done
Explanation:
The kinetic energy of an object is the energy possessed by the object due to its motion. Mathematically, it is given by:
where
m is the mass of the object
v is its speed
The work done an object is the amount of energy transferred; according to the energy-work theorem, it is equal to the change in kinetic energy of an object:
where
is the final kinetic energy
is the initial kinetic energy
Finally, the power is the rate of work done per unit time. Mathematically, ti can be expressed as
where
W is the work done
t is the time elapsed
Learn more about kinetic energy, work and power:
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Answer:
V= 33.98 m/s
Explanation:
Given that
Horizontal speed ,u= 17 m/s
Time taken by rockets to strike the water ,t= 3 s
We know that acceleration due to gravity ,g= 9.81 m/s²
There is no any acceleration in the horizontal direction that is why the horizontal veloity will remain constant.
In the vertical direction
vy = uy+ g t
Initial velocity in vertical direction is 0 m/s.
vy= 0+ 9.81 x 3
vy = 29.43 m/s
The resultant velocity
V= 33.98 m/s
