In robot design and application the force and angle with angular speed is important so this study will model numerical simulation and discuss detail data to investigate their property. The force may increase as arm 1 angle increases whilst it may increase if angular speed increases in three freedoms. Meantime it will decrease if angular acceleration increases. It is found that with the angular speed increasing all three forces may increase whilst the angular acceleration will cause its increase too in five freedoms. From this value it is observed that F2 is prior one to ensure the strength and fatigue life then F2 is second one to estimate its strength whilst F3 may be neglected. The force may increase as arm 1 angle increases whilst it may increase if angular speed increases in three freedoms. Meantime it will decrease if angular acceleration increases. There is big distance to attain 5KN between the conditions. The effective factor turn to the force is F1>F3>F2 in three freedoms. The force may increase from 15N to 15KN and 18KN with F3, F2 and F1 in five freedoms. Among them F3 is the least one and F1 is the biggest one. The effect factor turn is F1 >F2 >F3. so the F1 and F2 is important one while F3 is neglected.

The use of digital technology can become a behavioral addiction that negatively affects a person's social and academic life. Nowadays, children all over the world are becoming addicted to technologies - more so than in any past generations. Digital technology has become an integral part of everyday life, and children use it to study and play. Also, some parents use digital technology as a ‘babysitter’ to entertain their children so that the parents can do other things. This affects children's brains and their social, emotional, cognitive, and physical development. This research aims to assess the potential impact of technology on children's behavior. To collect data, this paper used an online survey created with Google Forms. The sample targeted parents. There were 207 responses. The results of the questionnaire and previous studies conducted on the effect of technology on children taken from scientific research found that as technology use increases, the effect it can have on brain function increases. This effect has been linked to physical and psychological problems such as reduced attention span, risk of depression, obesity, and bullying. Based on the study’s results it is recommended that parents monitor their children’s use of digital technology; this includes setting a time limit for using devices, monitoring content, blocking violent and intimidating games for children, and setting a bedtime. In addition, apps such as Qustodio, Norton Family Premier, and Amazon Free Time are suggested as tools to support parents in overseeing their children’s use of digital technology.

Significant advances have been seen in the field of cybersecurity in various institutions globally. However, there are still challenges to setting standards and rules to avoid related problems, due to the use of social engineering. Thus, raising awareness of social engineering methods is considered vital to mitigate the negative impact of social engineering. The aim of this study is to investigate the level of awareness of the concept of social engineering in the city of Jeddah. This study was conducted using an online questionnaire to collect and analyze data. It has been found that there is a lack of awareness, and this issue must be addressed before it escalates.