Answer:
For SGID you type this
$ find . -perm /4000
For SUID you type this
$ find . -perm /2000
Explanation:
Auxiliary file permissions, that are commonly referred to as “special permissions” in Linux are needed in order to easily find files which have SUID (Setuid) and SGID (Setgid) set.
After typing
$ find directory -perm /permissions
Then type the commands in the attachment below to obtain a list of these files with SGID and SUID.
Answer:
The correct option is;
c. Leaving the chuck key in the drill chuck
Explanation:
A Common safety issues with a drill press leaving the chuck key in the drill chuck
It is required that, before turning the drill press power on, ensure that chuck key is removed from the chuck. A self ejecting chuck key reduces the likelihood of the chuck key being accidentally left in the chuck.
It is also required to ensure that the switch is in the OFF position before turning plugging in the power cable
Be sure that the chuck key is removed from the chuck before turning on the power. Using a self-ejecting chuck key is a good way of insuring that the key is not left in the chuck accidentally. Also to avoid accidental starting, make sure the switch is in the OFF position before plugging in the cord. Always disconnect the drill from the power source when making repairs.
Answer:
A battery changes chemical energy to <u>electrical</u> energy
A drum changes mechanical energy to <u>sound</u> energy
Explanation:
A battery is a device that stores chemical energy and converts it to electrical energy.
Beating a drum represents a mechanical to sound energy conversion.
Answer:
flow(m) = 7.941 lbm/s
Q_in = 90.5184 Btu/lbm
Q_out = 56.01856 Btu/lbm
Explanation:
Given:
- T_1 = 60 F = 520 R
- T_6 = 940 = 1400 R
- Heat ratio for air k = 1.4
- Compression ratio r = 3
- W_net,out = 1000 hp
Find:
mass flow rate of the air
rates of heat addition and rejection
Solution:
- Using ideal gas relation compute T_2, T_4, T_10:
T_2 = T_1 * r^(k-1/k)
T_2 = T_4 = T_10 = 520*3^(.4/1.4) = 711.744 R
- Using ideal gas relation compute T_7, T_5, T_9:
T_7 = T_6 * r^(-k-1/k)
T_7 = T_5 = T_9 = 1400*3^(-.4/1.4) = 1022.84 R
- The mass flow rate is obtained by:
flow(m) = W_net,out / 2*c_p*(1400-1022.84-711.744+520)
flow(m) = 1000*.7068 / 2*0.24*(1400-1022.84-711.744+520)
flow(m) = 7.941 lbm/s
- The heat input is as follows:
Q_in = c_p*(T_6 - T_5)
Q_in = 0.24*(1400 - 1022.84)
Q_in = 90.5184 Btu/lbm
- The heat output is as follows:
Q_out = c_p*(T_10 - T_1)
Q_out = 0.24*(711.744 - 520)
Q_out = 56.01856 Btu/lbm
Answer:
Artefacts can influence our actions in several ways. They can be instruments, enabling and facilitating actions, where their presence affects the number and quality of the options for action available to us. They can also influence our actions in a morally more salient way, where their presence changes the likelihood that we will actually perform certain actions. Both kinds of influences are closely related, yet accounts of how they work have been developed largely independently, within different conceptual frameworks and for different purposes. In this paper I account for both kinds of influences within a single framework. Specifically, I develop a descriptive account of how the presence of artefacts affects what we actually do, which is based on a framework commonly used for normative investigations into how the presence of artefacts affects what we can do. This account describes the influence of artefacts on what we actually do in terms of the way facts about those artefacts alter our reasons for action. In developing this account, I will build on Dancy’s (2000a) account of practical reasoning. I will compare my account with two alternatives, those of Latour and Verbeek, and show how my account suggests a specification of their respective key concepts of prescription and invitation. Furthermore, I argue that my account helps us in analysing why the presence of artefacts sometimes fails to influence our actions, contrary to designer expectations or intentions.
When it comes to affecting human actions, it seems artefacts can play two roles. In their first role they can enable or facilitate human actions. Here, the presence of artefacts changes the number and quality of the options for action available to us.Footnote1 For example, their presence makes it possible for us to do things that we would not otherwise be able to do, and thereby adopt new goals, or helps us to do things we would otherwise be able to do, but in more time, with greater effort, etc
Explanation:
Technological artifacts are in general characterized narrowly as material objects made by (human) agents as means to achieve practical ends. ... Unintended by-products of making (e.g. sawdust) or of experiments (e.g. false positives in medical diagnostic tests) are not artifacts for Hilpinen.
