Answer:
If you are destroying the environment or habitats or trees. Also if people live nearby. Also if its legal.
Explanation:
Answer:
40 ft
Explanation:
Assuming no loss of energy in the system of pulleys, the work done is the same whether you move the load directly or through the pulleys.
W = Fd . . . . . . . . work is the product of force and distance
F(10 ft) = (0.25F)(d) . . . . . where d is the distance we want to find
d = 10F/(0.25F) = 40
The rope will need to move 40 feet.
Answer:
See Explanation Below
Explanation:
The question is divided into three parts
1. Describe the factors that contribute to a disk drive’s average access time.
The answer to this is
a. Rotational Delay
b. Track-to-Track seek time or head movement
c. Head to head switching time
Each of the aforementioned factors affects the disk drive's average access time.
The rotational delay is the time between information requests and how long it takes the hard drive to move to the sector where the requested data is located
Track to track is the amount of time it takes the read/write head to search or seek between adjacent tracks
Head to head switching is an action taken by the hard drive head that moves the current action being performed on one read/write head to another
2. Which of these factors is improved if the spin rate is increased?
In the aforementioned factors, the rotational delay gets decreased when the spin rate gets increased.
3. Which is improved if areal density is increased?
The track to track seek time gets improved; the reason for this is that the the increment in the areal density makes the tracks to become narrowed and tightened together.
Answer:
Correct answer is (c)
Explanation:
The transmission of a program, information, code, or command that intentionally causes damage without authorization, to a protected computer.
Melissa virus is a computer program that was meant to cause serious damage to computer system by sending e-mail from an infected computer to the mail address on that computer. The virus was investigated by the FBI's National Infrastructure Protection Center. By transmission of a program, information, code, or command that intentionally causes damage without authorization, to a protected computer, The FBI's NIPC will be able to investigate how Melissa is being proliferated.
Answer:
s(2v₁+v₂+v₃)/4
Explanation:
Recall that relationship between speed,distance and time is expressed as
speed=distance/time.
For the first part of the journey travelled at a speed of V₁ and covered a distance of (s/2), the time taken t₁=(s/2)/v₁
for the second part of the journey,let the time taken to complete both half of the second journey be t₂ and t₃ respectively. since it travel each half each distance at equal half time,then
t₂₌t₃
let the distance of the second journey be (s/2), where each time complete (s/4) distance. the time taken is
t₂₌(s/4)/v₂ and t₃=(s/4)/v₃
hence the total time taken is to cover the distance s is
t=t₁+t₂+t₃
t=(v₁s/2)+ (v₂s/4)+(v₃s/4)
t=s(2v₁+v₂+v₃)/4
