Answer:
See explanations
Explanation:
Given Data, The diameter of the Tank (D) = 2 ft.
Height of the Tank (H) = 4.5 ft.
Inside temperature of Tank (T1) = 120° F Outside temperature (T2) = 65° F The thickness of Steel (s1) = 0.080" = 0.00666667 ft. Thickness of fiberglass
Answer:
, 
Explanation:
Since there is no information related to volume flow to and from turbine, let is assume that volume flow at inlet equals to
. Turbine is a steady-flow system modelled by using Principle of Mass Conservation and First Law of Thermodynamics:
Principle of Mass Conservation

First Law of Thermodynamics

This 2 x 2 System can be reduced into one equation as follows:

The water goes to the turbine as Superheated steam and goes out as saturated vapor or a liquid-vapor mix. Specific volume and specific enthalpy at inflow are required to determine specific enthalpy at outflow and mass flow rate, respectively. Property tables are a practical form to get information:
Inflow (Superheated Steam)

The mass flow rate can be calculated by using this expression:


Afterwards, the specific enthalpy at outflow is determined by isolating it from energy balance:


The enthalpy rate at outflow is:


Answer:
dy/dx = (1 − 2x + 8y) / (4 + 3x − 12y)
Explanation:
d/dx (x − 4y) = d/dx (e^(2x + 3y − 1))
1 − 4 dy/dx = e^(2x + 3y − 1) (2 + 3 dy/dx)
Since x − 4y = e^(2x + 3y − 1):
1 − 4 dy/dx = (x − 4y) (2 + 3 dy/dx)
1 − 4 dy/dx = 2 (x − 4y) + 3 (x − 4y) dy/dx
1 − 4 dy/dx = 2x − 8y + (3x − 12y) dy/dx
1 − 2x + 8y = (4 + 3x − 12y) dy/dx
dy/dx = (1 − 2x + 8y) / (4 + 3x − 12y)
Answer:
C. the object is moving forward
Explanation:
A positive slope means position is increasing when time is increasing. Generally, increasing position is "moving forward."