What is another metaphor (aside from the fact that a piano can only produce certain notes) that could help someone understand en
1 answer:
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Answer:
Explanation:
The stone reaches the top of the flagpole at both t = 0.5 s and t = 4.1 s
therefore, the total duration of the upwards motion above the peak of the pole is provided as
now we have
this indicates the speed at the flagpole's top
at this point we have
the height of the flagpole is stated as
We will use the equations of rotational kinematics,
(A)
(B)
Here, and
denote the final and initial angular displacements, respectively, whereas
and
represent final and initial angular velocities, and
is the angular acceleration.
We are provided with and
.
By substituting these values into equation (A), we have
Now, using equation (B),
This indicates that the wheel's angular speed at the 4.20-second mark is 36.7 rad/s.
Answer:
155.38424 K
2.2721 kg/m³
Explanation:
= Reservoir pressure = 10 atm
= Reservoir temperature = 300 K
= Exit pressure = 1 atm
= Exit temperature
= Specific gas constant = 287 J/kgK
= Specific heat ratio = 1.4 for air
Assuming isentropic flow
Flow temperature at exit is 155.38424 K
Density at exit can be derived using the ideal gas equation
Flow density at exit measures 2.2721 kg/m³