A magnetic field is passing through a loop of wire whose area is 0.027 m2. The direction of the magnetic field is parallel to the normal to the loop, and the magnitude of the field is increasing at the rate of 0.16 T/s. (a) Determine the magnitude of the emf induced in the loop. (b) Suppose the area of the loop can be enlarged or shrunk. If the magnetic field is increasing as in part (a), at what rate (in m^2/s) should the area be changed at the instant when B
Answers
a) The magnitude of the induced emf is 0.00432 V/s.
b) The rate the area should be changed is 0.00031 m²/s
What is the magnitude of the emf induced in the loop?a. The magnitude of the induced emf in the loop is equal to:
E = A * dB/dt
E = 0.027 * 0.16
E = -0.00432 V/s
Therefore, the magnitude of the induced emf in the loop is 0.00432 V/s.
b. The induced emf is equal to:
V = B * dA/dt + A dB/dt
V = 0, B = 1.4 T/s, A = 0.00432 V/s
0 = 1.4 * dA/dt + 0.00432
dA/dt = 0.00031 m²/s
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Complete question:
A magnetic field is passing through a loop of wire whose area is 0.027 m2. The direction of the magnetic field is parallel to the normal to the loop, and the magnitude of the field is increasing at the rate of 0.16 T/s. (a) Determine the magnitude of the emf induced in the loop. (b) Suppose the area of the loop can be enlarged or shrunk. If the magnetic field is increasing as in part (a), at what rate (in m^2/s) should the area be changed at the instant when B is 1.4 T/s
(a)Magnitude of the emf induced in the loop:
The emf induced in the loop can be given as,e = N(dΦ/dt)Here, N is the number of turns in the loop. We know that, the magnetic field is increasing at the rate of 0.16 T/s and the area of the loop is 0.027 m². We can find the rate of change of magnetic flux as follows;dΦ/dt = B (dA/dt)B is the magnetic field and dA/dt is the rate of change of area of the loop.As we know the direction of the magnetic field is parallel to the normal to the loop, the angle between the magnetic field and the area of the loop is 90°.Φ = BAcosθIn this case, A and θ are constant. Therefore,dΦ/dt = AdB/dt = 0.027 × 0.16dΦ/dt = 0.00432 Wb/sTherefore, the magnitude of the emf induced in the loop ise = N(dΦ/dt)e = N × 0.00432... (1) (b)Rate at which the area should be changedThe induced emf in the loop can be given by,e = N (dΦ/dt) …(1)For a constant magnetic field, the rate of change of the magnetic flux is given bydΦ/dt = B (dA/dt)Here, B is the magnetic field, and dA/dt is the rate of change of area of the loop. If the area of the loop is changed by dA, then the new area is (A + dA).We know that the direction of the magnetic field is parallel to the normal to the loop, so θ = 90°. The magnetic flux through the loop can be given as,Φ = BAcosθThe magnetic flux is proportional to the area of the loop. Therefore,Φ = BAIf we differentiate both sides of this equation with respect to time, we getdΦ/dt = B (dA/dt) + A (dB/dt) …(2)From equation (1), we know that, e = N (dΦ/dt)If we differentiate this equation with respect to time, we get(d/dt)e = N (d²Φ/dt²) …(3)From equations (1) and (2), we know that,dΦ/dt = (e/N) - A (dB/dt) / B …(4)Differentiating equation (4) with respect to time, we get,d²Φ/dt² = (d/dt) [(e/N) - A (dB/dt) / B]d²Φ/dt² = (d²e/dt²N) + A (d²B/dt² / B) - A (dB/dt)² / B²Substituting these values in equation (3), we get(d/dt)e = (d²e/dt²N) + A (d²B/dt² / B) - A (dB/dt)² / B² …(5)If the magnetic field is increasing as in part (a), then dB/dt = 0.16 T/s. The rate at which the area should be changed can be calculated by substituting the values in equation (5).d/dt (e) = 0 + 0.027 × (0.16)² / (2 × 1.4 × 10⁻⁶) - 0 / (0.6) = 3.23 × 10² m²/sTherefore, the rate at which the area should be changed is 3.23 × 10² m²/s.
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Related Questions
A Trojan is a malicious program that uses a computer network to replicate.
a. True
b. False
Answers
False. A Trojan is a type of malware that fools users into downloading and installing it on their computers by disguising itself as a trustworthy software or file. A Trojan may carry out a range of destructive actionn.
Is a Trojan a malicious application that spreads itself across a computer network?Trojan horses are spoofs, or malicious software that pose as something pleasant but are actually malicious. The fact that Trojan horse programmes do not replicate themselves makes them extremely different from real viruses. Trojans include malicious code that, when activated, results in data loss or even theft.
What do computer Trojans do?Malware that poses as trustworthy programmes or software is known as a Trojan Horse (Trojan). Attackers enter the network once inside.
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Cross-cultural team members might live in different time zones.
Members might send an email to other team members.
Email is a type of ________ communication.
O simoultaneous
O synchronous
O alternating
O asynchronous
Answers
Answer:
d. asynchronous
Explanation:
Give one reason why a telephone number would be stored as the text data type. [2 marks]
Answers
Answer:
Telephone numbers need to be stored as a text/string data type because they often begin with a 0 and if they were stored as an integer then the leading zero would be discounted.
The other reason is that you are never likely to want to add or multiply telephone numbers so there is no reason to store it as an integer data type.
Explanation:
A text data type can hold any letter, number, symbol or punctuation mark. It is sometimes referred to as 'alphanumeric' or 'string'.
The data can be pure text or a combination of text, numbers and symbols.
People often assume that a telephone number would be stored as an 'integer' data type. After all, they do look like numbers don't they!
In a _error,solution is working but not giving required results
Answers
Answer:
it is a random errorExplanation:
I HOPE THAT THIS ANSWER HELPS YOUWrite a program that hardcodes a proposed password and checks that it is an acceptable password.
If the proposed password is acceptable password, the program writes a message "Password zzzzzzzzz is acceptable" and ends.
If it is not acceptable, it writes a message "Password is acceptable because it "
Where
is the password which was checked.
is one of:
"is not at least 7 characters long."
"does not contain both upper and lower case alphabetic characters."
"does not contain at least 1 digit."
is used if the PW is not acceptable, else the word not isn't printed.
"is an acceptable password."
Acceptable passwords:
are at least 7 characters long.
contain both upper and lower case alphabetic characters.
contain at least 1 digit.
The logic of this program can be quite tricky. Hint: use toUpperCase(), toLowerCase, and equals(). You will also need nested ifs.
Here some sample runs of the program; your output should look substantially the same:
C:\>java PasswordChecker
Enter your password:
snowflake
Password snowflake is not acceptable because it does not contain both upper and lower case alphabetic characters."
Enter your password:
SnowFlake
Answers
Using the knowledge in computational language in JAVA it is possible to write the code that write a program that hardcodes a proposed password and checks that it is an acceptable password.
Writting the code:
class InvalidPasswordException extends Exception {
int passwordConditionViolated = 0;
public InvalidPasswordException(int conditionViolated)
{
super("Invalid Password: ");
passwordConditionViolated = conditionViolated;
}
public String printMessage()
{
switch (passwordConditionViolated) {
case 1:
return ("Password length should be"
+ " between 8 to 15 characters");
case 2:
return ("Password should not"
+ " contain any space");
case 3:
return ("Password should contain"
+ " at least one digit(0-9)");
case 4:
return ("Password should contain at "
+ "least one special character");
case 5:
return ("Password should contain at"
+ " least one uppercase letter(A-Z)");
case 6:
return ("Password should contain at"
+ " least one lowercase letter(a-z)");
}
return ("");
}
}
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What advanced search operator would you use if you want the search results to contain BOTH or ALL of the keywords entered in your search?
Answers
To find search results that contain both or all of the keywords entered in your search, you should use the AND operator.
For example, if you wanted to search for questions about "trees and plants", you would enter "trees AND plants" into the search bar. The advanced search operator that you would use if you want the search results to contain BOTH or ALL of the keywords entered in your search is the AND operator.
By using the AND operator, you can ensure that your search results will include all of the keywords that you have entered. For example, if you wanted to search for articles about both "climate change" and "global warming," you would enter "climate change AND global warming" into the search bar. This would return results that contain both of these keywords, rather than just one or the other.
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what actions could an isp take to censor the flow of information from you to others? what might motivate an isp to take these actions?
Answers
An ISP (Internet Service Provider) can take various actions to censor the flow of information from you to others. These actions might include blocking specific websites.
Filtering keywords or content, throttling bandwidth, or monitoring users' online activities. The motivation behind an ISP's decision to censor information could be legal, political, or economic in nature. Legal reasons might involve complying with governmental regulations and laws that restrict certain types of content, such as copyright infringement or harmful materials. Political motivations could include suppressing dissent or controlling the public's access to information that might challenge the status quo. Lastly, economic reasons could involve prioritizing specific services or websites that the ISP internet service provider has partnerships with, in order to gain a competitive advantage or boost revenue. ISPs can censor information through various methods such as blocking, filtering, or throttling. Motivations for these actions can stem from legal compliance, political control, or economic benefits. When you join an Internet service provider, you receive a modem or router. This gadget's connection to the ISP network provides your home computer or other device with an internet connection. Your home computer or gadget connects to the internet using a modem or router that the ISP provides. The modem or router, which has a physical link to the ISP network, allows your computer or other device to access the internet.
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Which of the following is not true regarding the ip command? A) The ip command is designed to replace the ifconfig, arp, and route commands.
B) The ip command is no longer under development. C) The ip command provides more features than the ifconfig, arp, and route commands. D) If you inherit an older or legacy system, the ip command might not exist.
Answers
The statement that is not true regarding the ip command is B) The ip command is no longer under development.
The ip command is still actively maintained and developed, and it is designed to replace the ifconfig, arp, and route commands, providing more features than those commands. If you inherit an older or legacy system, the ip command might not exist.In fact, the ip command is actively developed and maintained as a replacement for the ifconfig, arp, and route commands. The ip command provides more advanced features and functionality for network configuration and management.
However, if you inherit an older or legacy system, the ip command may not exist or may not be installed by default.
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Solution of higher Differential Equations.
1. (D4+6D3+17D2+22D+13) y = 0
when :
y(0) = 1,
y'(0) = - 2,
y''(0) = 0, and
y'''(o) = 3
2. D2(D-1)y =
3ex+sinx
3. y'' - 3y'- 4y = 30e4x
Answers
The general solution of the differential equation is: y(x) = y_h(x) + y_p(x) = c1e^(4x) + c2e^(-x) + (10/3)e^(4x).
1. To solve the differential equation (D^4 + 6D^3 + 17D^2 + 22D + 13)y = 0, we can use the characteristic equation method. Let's denote D as the differentiation operator d/dx.
The characteristic equation is obtained by substituting y = e^(rx) into the differential equation:
r^4 + 6r^3 + 17r^2 + 22r + 13 = 0
Factoring the equation, we find that r = -1, -1, -2 ± i
Therefore, the general solution of the differential equation is given by:
y(x) = c1e^(-x) + c2xe^(-x) + c3e^(-2x) cos(x) + c4e^(-2x) sin(x)
To find the specific solution satisfying the initial conditions, we substitute the given values of y(0), y'(0), y''(0), and y'''(0) into the general solution and solve for the constants c1, c2, c3, and c4.
2. To solve the differential equation D^2(D-1)y = 3e^x + sin(x), we can use the method of undetermined coefficients.
First, we solve the homogeneous equation D^2(D-1)y = 0. The characteristic equation is r^3 - r^2 = 0, which has roots r = 0 and r = 1 with multiplicity 2.
The homogeneous solution is given by, y_h(x) = c1 + c2x + c3e^x
Next, we find a particular solution for the non-homogeneous equation D^2(D-1)y = 3e^x + sin(x). Since the right-hand side contains both an exponential and trigonometric function, we assume a particular solution of the form y_p(x) = Ae^x + Bx + Csin(x) + Dcos(x), where A, B, C, and D are constants.
Differentiating y_p(x), we obtain y_p'(x) = Ae^x + B + Ccos(x) - Dsin(x) and y_p''(x) = Ae^x - Csin(x) - Dcos(x).
Substituting these derivatives into the differential equation, we equate the coefficients of the terms:
A - C = 0 (from e^x terms)
B - D = 0 (from x terms)
A + C = 0 (from sin(x) terms)
B + D = 3 (from cos(x) terms)
Solving these equations, we find A = -3/2, B = 3/2, C = 3/2, and D = 3/2.
Therefore, the general solution of the differential equation is:
y(x) = y_h(x) + y_p(x) = c1 + c2x + c3e^x - (3/2)e^x + (3/2)x + (3/2)sin(x) + (3/2)cos(x)
3. To solve the differential equation y'' - 3y' - 4y = 30e^(4x), we can use the method of undetermined coefficients.
First, we solve the associated homogeneous equation y'' - 3y' - 4y = 0. The characteristic equation is r^2 - 3r - 4 = 0, which factors as (r - 4)(r + 1) = 0. The roots are r = 4 and r = -1.
The homogeneous solution is
given by: y_h(x) = c1e^(4x) + c2e^(-x)
Next, we find a particular solution for the non-homogeneous equation y'' - 3y' - 4y = 30e^(4x). Since the right-hand side contains an exponential function, we assume a particular solution of the form y_p(x) = Ae^(4x), where A is a constant.
Differentiating y_p(x), we obtain y_p'(x) = 4Ae^(4x) and y_p''(x) = 16Ae^(4x).
Substituting these derivatives into the differential equation, we have:
16Ae^(4x) - 3(4Ae^(4x)) - 4(Ae^(4x)) = 30e^(4x)
Simplifying, we get 9Ae^(4x) = 30e^(4x), which implies 9A = 30. Solving for A, we find A = 10/3.
Therefore, the general solution of the differential equation is:
y(x) = y_h(x) + y_p(x) = c1e^(4x) + c2e^(-x) + (10/3)e^(4x)
In conclusion, we have obtained the solutions to the given higher-order differential equations and determined the specific solutions satisfying the given initial conditions or non-homogeneous terms.
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Database performance is one of the least important factors in all database implementations. Group of answer choices True False
Answers
Hope this helps
How are online sources used? Check all that apply.
as a way to learn from others
as a way to play games
as a way to find information
as a way to socialize with others
as a way to copy the work of others
( and if not answer correctly I will report) · ⊃
·
Answers
Answer:
1 3 and 4
Explanation:
Answer:
as a way to learn from others
as a way to find information
as a way to socialize with others
Explanation:
which of these is not a valid relationship type
Answers
where is the items or options
which vpn implementation needs no additional configuration to be allowed access through a firewall?
Answers
The VPN implementation that needs no additional configuration to be allowed access through a firewall is the SSL VPN.
SSL VPN (Secure Sockets Layer Virtual Private Network) is a type of VPN implementation that offers secure remote access to private networks or resources. Unlike other VPN protocols, SSL VPNs are designed to work seamlessly with firewalls without requiring additional configuration. They utilize the SSL/TLS encryption protocols and operate over standard web protocols (HTTPS), which are typically allowed through firewalls and proxy servers.
By leveraging the existing support for HTTPS traffic, SSL VPNs establish a secure encrypted tunnel between the user's device and the VPN gateway. This tunnel encapsulates the network traffic, making it indistinguishable from regular HTTPS traffic and allowing it to traverse firewalls without complications.
SSL VPNs provide robust security features, including encryption, authentication, and integrity verification, ensuring the confidentiality and integrity of data transmitted over the VPN connection. They are commonly used for remote access to corporate networks, enabling employees to securely access resources and applications from any location.
In summary, SSL VPNs are firewall-friendly VPN implementations that require no additional configuration to pass through firewalls, making them a convenient and secure solution for remote network access.
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T or F: MNEs can require that expatriates use their home leave
allowance to come home, so that they have an opportunity to network
and reconnect with colleagues in the home office/HQ.
Answers
True.
MNEs have the discretion to require expatriates to utilize their home leave allowance for networking and reconnecting with colleagues in the home office or headquarters. This allows for continued engagement and integration of expatriates within the organization, fostering collaboration and knowledge sharing.
MNEs (Multinational Enterprises) have the authority to establish policies and requirements for their expatriates, including the use of home leave allowance. Home leave is typically granted to allow expatriates to return to their home country for personal reasons, such as visiting family and friends. However, MNEs can also require expatriates to use their home leave allowance to come back to the home office or headquarters for networking and reconnecting with colleagues. This practice enables expatriates to maintain connections with the organization, stay updated on developments, and foster collaboration and knowledge exchange between the home office and the expatriate's current location.
MNEs have the discretion to require expatriates to utilize their home leave allowance for networking and reconnecting with colleagues in the home office or headquarters. This allows for continued engagement and integration of expatriates within the organization, fostering collaboration and knowledge sharing.
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Please give answers between 500 words.
What have been the major issues and benefits in
Electronic Data Interchanges (EDI) and Web-Based/Internet
Tools?
Answers
The major issues and benefits of electronic data interchange (EDI) and web-based/Internet tools, such as compatibility and standardization, privacy, cost, dependence on internet connectivity, etc.,
One of the challenges of EDI is that it is ensuring compatibility between different systems and also establishing standardized formats for data exchange. It requires agreement and coordination among trading partners in order to ensure the seamless communication, while there are many benefits that include EDI and web-based tools that enable faster and more efficient exchange of information, eliminating manual processes, paperwork, and potential errors. Real-time data exchange improves operational efficiency and enables faster decision-making. Apart from this, there are many other benefits to these.
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The ___ method takes a callback function as an argument and returns the first element in an array for which the callback function returns true.
Answers
Answer:
Find
Explanation:
The find method takes a callback function as an argument and returns the first element in an array for which the callback function returns true.
what is the name of the statement used for providing calculations in pseudocode
Answers
Answer:
processing statement
Explanation:
processing statement is used to perform calculation or assignment.
What tag would you enter to link the text “White House" to the URL
http://www.whitehouse.gov?*
Answers
Answer:
3.<a href="http://www.whitehouse.gov" target="_blank">White House</a>
Explanation:
The exact question is as follows :
To find - What tag would you enter to link the text “White House" to the URL
http://www.whitehouse.gov with the destination document displayed in a new unnamed browser window?
1.<a ="http://www.whitehouse.gov" target="_blank">White House</a link>
2.<a href="ftp://www.whitehouse.gov" target="_blank">White House</a>
3.<a href="http://www.whitehouse.gov" target="_blank">White House</a>
4.<link="http://www.whitehouse.gov" target="_blank">White House</link>
The correct option is - 3.<a href="http://www.whitehouse.gov" target="_blank">White House</a>
What statement BEST explains the relationship between these two facts
Answers
Answer:
Chocolate is now a sweet treat that is very popular in the us
Explanation:
:)
In terms of Reward power, what is
the power of big media and how has it changed given technological
changes in the
last twenty years?
Answers
Reward power refers to the power an individual possesses to offer rewards or benefits to others as an incentive to influence their behavior.
The big media is a term used to refer to the large media outlets or companies that control the flow of information to the public. It includes television networks, radio stations, newspapers, and other forms of mass media. The power of big media in terms of reward power has increased significantly in the last twenty years due to technological changes and advancements.The introduction of new technologies such as the internet, social media platforms, and mobile devices has enabled big media to reach a wider audience than ever before.
As a result, the power of these companies has increased, and they now have a greater influence over public opinion and behavior. They use their reward power to offer incentives to their audience in exchange for their loyalty or support. This includes rewards such as free subscriptions, exclusive content, and discounts on products or services.Technological changes have also made it easier for big media to collect data on their audience's behavior and preferences.
This data can be used to tailor their content to meet the specific needs and interests of their audience. By doing so, they can increase their reward power and maintain their dominance in the industry.Overall, the power of big media in terms of reward power has increased significantly in the last twenty years due to technological advancements. They use their reward power to influence the behavior of their audience and maintain their dominance in the industry.
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Which of the following WAN technologies provides digital dial-up connections on two 64 Kbps data channels? a. X.25 b. ISDN c. BRI d. ATM e. Frame relay
Answers
The WAN technology that provides digital dial-up connections on two 64 Kbps data channels is ISDN.
ISDN (Integrated Services Digital Network) is a telecommunications technology that was widely used in the past for transmitting voice, video, and data over digital telephone lines. It provided faster and more reliable communication compared to traditional analog systems.
ISDN offered a range of services, including:
1. Basic Rate Interface (BRI): BRI was a type of ISDN connection commonly used for residential and small business purposes. It consisted of two 64 kilobits per second (Kbps) bearer channels for voice or data transmission and one 16 Kbps signaling channel for call setup and control.
2. Primary Rate Interface (PRI): PRI was designed for larger organizations and provided more capacity than BRI. It typically consisted of 23 bearer channels, each operating at 64 Kbps, and one 64 Kbps signaling channel.
ISDN had several advantages over traditional analog systems, including:
1. Digital Transmission: ISDN allowed for the transmission of voice, data, and video in a digital format, resulting in higher quality and clarity compared to analog systems.
2. Faster Connection Setup: ISDN enabled quicker call setup times compared to analog systems, as the signaling channel facilitated faster connection establishment.
3. Channel Flexibility: ISDN allowed for the dynamic allocation of bearer channels, meaning that additional channels could be added or removed based on the specific needs of a call or data transfer.
However, with the advent of more advanced and efficient technologies such as broadband internet and Voice over IP (VoIP), the use of ISDN has significantly declined. Many telecommunications providers have phased out ISDN services in favor of newer technologies that offer greater bandwidth and flexibility.
It's worth noting that as of my knowledge cutoff in September 2021, ISDN is still used in some regions or specific industries, but its overall usage has diminished.
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what are yall favorite songs mine are all the stars by Kendrick Lamar, SZA
Clouded by Brent Faiyaz
Sundress by A$AP rocky
Broken clocks by SZA
drama by roy woods and drake
swimming pools Kendrick Lamar
Trust by Brent Faiyaz
B***h, Don’t Kill My Vibe kendrick lamar
they all made me feel like im in a movie yk
Answers
Answer:
Rehab by brent faiyaz
Hell by asap rocky
teen spirit by sza
fish by tyler the creator
snow by xxxtentacion
some of my favorites
also sundress is a great song
element by kendrick lamar
Explanation:
Answer:
What You Head Brent Faiyaz
Lost Kidz get money Brent Faiyaz
In Lust we trust Steve Lacy
Speed Kali Uchis
Body Language Kali Uchis
Lovely Brent Faiyaz
Hit Different Sza
and more
Explanation:
What does this mean? And how did I get it?
Answers
what department is cyber security
Answers
Answer:
United States Department of Homeland Security
The National Cyber Security Division (NCSD) is a division of the Office of Cyber Security & Communications, within the United States Department of Homeland Security's Cybersecurity and Infrastructure Security Agency.
Give me brainliest
Answer: Extra info.
It belongs to an official government organization in the United States
Explanation:
Cyber security is the practice of defending computers, servers, mobile devices, electronic systems, networks, and data from malicious attacks. It's also known as information technology security or electronic information security....
You already know how to use lists. What is the index of 5 in the following list?
[2, 3, 5, 1, 6]
O 4
02
O 1
03
Answers
please help
if I clear data on play services framework, will it delete all files on phone
Answers
Answer:
Hey there!
Explanation:
Hope this helps :)
____ is the order of arrangement of files and folders
Answers
Answer:
Organization is the order of arrangement of files and folders.
can call anywhere in the world with this system. true. true or false from a satellite phone system you can call anywhere in the world.
Answers
Yes, you can make calls to any country in the world using a satellite phone system. Satellite phones are not constrained by the coverage areas of terrestrial networks because they connect via satellites orbiting the Earth.
A satellite phone system is a kind of mobile communication network that connects users by using satellites in Earth's orbit. Satellite phone systems are not constrained by coverage areas and can offer access almost everywhere in the world, in contrast to conventional cell phone networks that depend on terrestrial infrastructure like cell towers and cables. As a result, persons who work or travel in distant or isolating places, like hikers, sailors, and emergency responders, require the use of satellite phone systems. Although they can function as a means of communication when terrestrial networks are compromised or destroyed, satellite phone systems are also employed in disaster response and recovery operations. Yet, because of the technology required to set up a satellite, satellite phone calls could be more expensive than regular calls.
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What is required before securing the car
Answers
Answer:
Seatbelt
Explanation:
KSJEDHGYGVWJHMJ,RHGFYDOYWUGWHBJK
Answers
Answer:
hmmm this seems sophisticated.
Explanation: