Look at the engineering design process
Answer:
The force over the plane windows are 764 lbf in the EE unit system and 3398 N in the international unit system.
Explanation:
The net force over the window is calculated by multiplying the difference in pressure by the area of the window:
F = Δp*A
The pressure inside the plane is around 1 atm, hence the difference in pressure is:
Δp = 1atm - 0.35 atm = 0.65 atm
Expressing in the EE unit system:
Δp = 0.65 atm * 14.69 lbf/in^2 = 9.55 lbf/in^2
Replacing in the force:
F = 9.55 lbf/in^2 * 80 in^2 = 764 lbf
For the international unit system, we re-calculate the window's area and the difference in pressure:
A = 80 in^2 * (0.0254 m/in)^2 = 0.0516 m^2
Δp = 0.65 atm * 101325 Pa = 65861 Pa = 65861 N/m^2
Replacing in the force:
F = 65861 N/m^2 *0.0516 m^2 = 3398 N
Answer:
(a) potential energy = 490.5 kg
(b) kinetic energy = 500 kg
Explanation:
Given data in question
total mass (m) = 10 kg
total height (h) = 5 m
average velocity = 10 m/s
To find out
potential energy and kinetic energy
Solution
First we calculate potential energy, and we know formula for potential energy is
potential energy = mass × gravity × height
put the value of mass and height and take gravity force = 9.81
potential energy = 10 × 9.81 × 5
potential energy = 490.5 kg
Now we calculate kinetic energy, and the kinetic energy formula is given below
kinetic energy = 1/2 × mass × velocity²
put the value of mass and velocity
kinetic energy = 1/2 × 10 × 10²
kinetic energy = 500 kg
At first glance, it appeared as if the appearance of wage work was one of the ways in which liberty had been realized in America. By having contract and wage work, people were "free" to pursue the jobs that they chose. However, as ideal as this situation appeared at first glance, it actually created many problems for wage workers.
The work that many of these people pursued was underpaid, abusive, excessive or dangerous. Moreover, most people who engaged in this type of work did not consider themselves "free," as they felt coerced due to poverty and the need to take jobs that were unjust. This showed that contract work only provided the appearance of liberty, but did not deliver on its promises. This led Americans to question the meaning of liberty in various ways.
Americans questioned the meaning of liberty by identifying ways in which African Americans were restricted in ways that resembled slavery (such as share-cropping). Moreover, many Americans questioned whether businessmen should have so much power to influence legislation. Finally, some Americans developed progressive ideas, such as the development of a welfare state which would prevent people from being forced to work dangerous or unjust jobs.
Answer: -10% To + 5% Voltage.
Explanation: ThANk yOu VeRY mUCh.