Answer:
ΔL = 1.68 mm
σ = 84 MPa
Explanation:
Thermal expansion can be calculated as:
ΔL = α ΔT L
And thermal stress is given by:
σ = α ΔT E
Provided values:
α = 1.2×10⁻⁵ /°C
E = 1.0×10⁵ MPa
ΔT = 80°C − 10°C = 70°C
L = 2 m
Thus, ΔL can be calculated as follows:
ΔL = (1.2×10⁻⁵ /°C) (70°C) (2 m)
ΔL = 0.00168 m
ΔL = 1.68 mm
For the thermal stress:
σ = (1.2×10⁻⁵ /°C) (70°C) (1.0×10⁵ MPa)
σ = 84 MPa
The force required to move the cylinder amounts to 25.6 N. Further explication involves given values: length of the cylinder, l = 0.5 m; outer diameter of the cylinder, d = 8 cm = 0.08 m; outer radius of the cylinder; inside diameter of the pipe, d = 8.5 cm = 0.085 m; inside radius of the pipe; specific gravity of the oil; density of the oil; kinematic viscosity of the oil; velocity of the cylinder, u = 1 m/s. The objective is to determine the force necessary to advance the cylinder. Let F be the required force. The specific gravity is the ratio of a substance's density to that of water. Kinematic viscosity denotes the inherent resistance of a fluid under gravity when no other external forces are applied. Key equations lead to the result: F = 25.6 N.
Answer:
The resolution for this question is below in the explanation section.
Explanation:
The right response to this question is A, which is 112002.
The correct code relating to this question is presented below
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
//#include "csapp.h"
void end(void)
{
printf("2");
}
int main()
{
if (fork() == 0)
atexit(end);
if (fork() == 0)
printf("0");
else
printf("1");
exit(0);
}
/* $end forkprob2 */
When this program is executed, the fork function will yield varying results.
However, it should be noted that running it multiple times will produce inconsistent values. The most common output the program will generate is A.
Attached is an image of the program's execution for further clarification.
An item of protective gear that shields individuals passing by from stray sparks or metal during the welding process performed by another worker is known as: E. Welding Screens.
An operator is a person tasked with joining two or more metals using a technique called wielding.
In the course of wielding, both sparks and tiny metallic fragments are released, which pose a danger to the operator and others working nearby.
As a result, the equipment outlined below should be worn or utilized directly by a worker actuating the wielding process:
Nonetheless, a type of protective gear that defends other workers nearby from stray sparks or metallic fragments while the operator (worker) is in the act of welding is called welding screens.
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