Question
In: Statistics and Probability
Compute the number of passwords for the problem below along with how long it would take...
Compute the number of passwords for the problem below along with how long it would take to test such password if it takes 1 nanosecond to test a password. Report the times in hours.
-Passwords using the word ‘password’ with different uses of upper case and lower case letters, and also allowing for a substitution of a number for the letters such as ‘96553014’; each letter is uniquely represented by a number, e.g., p can be replaced with 9 but with no other number. Basically, we have 3 choices per letter in ‘password’. No reordering allowed.
Solutions
orchestra answered 1 year agoRelated Solutions
Compute the number of passwords of each type below along with how long it would take...
Compute the number of passwords of each type below along with
how long it would take to test all possible such passwords if it
takes 1 nanosecond to test a password. Report the times in the most
convenient human understandable form. In all of these, unless noted
otherwise, order matters and repetition of characters is allowed.
Passwords of length 8 with any combination of lowercase
letters, uppercase letters, and numbers.
Passwords that start with a capital letter, have 10 lowercase...
How many passwords are possible? Passwords must: be more than 8 characters long but no more...
How many passwords are possible?
Passwords must:
be more than 8 characters long but no more than 30
Use lower case, upper case, a number, and a special character
[like ~ ! @ # $ % ^ & * ( ) _ + = ? > < . , / ]
A mathematical expression is fine.
What kind of PMF will be used?
At the speed of NASA’s fastest space probes, how long would it take to reach the...
At the speed of NASA’s fastest space probes, how long would it
take to reach the nearest solar systems outside of our own?
1. a.) how long would it take in minutes to replicate the E. coli chromosome if...
1. a.) how long would it take in minutes to replicate the E.
coli chromosome if it used unidirectional rather than bidirectional
replication? Explain how you calculated this answer.
b.) not accounting for individual chromosomes and telomeres,
i.e., use genome size, polyerization rate, and number of origins,
how long should it take in hours to replicate the diploid human
genome? Explain how you calculated this answer. why is this
calculated time less than the observed time?
How long would it take from the time you feel an earthquake for it to reach...
How long would it take from the time you feel an earthquake for
it to reach another city 92.0 km away, if it shakes you with a
frequency of 10 Hz and a has a wavelength of 600 m?
2.
Two trains (on separate tracks) travel toward each other, the
first at 60.0 km/s and the second at 40.0 km/s. Both turn on their
whistle, the first one emitting a frequency of 200 Hz and the
second one emitting a...
(a) How long (in s) would it take a 1.00 ✕ 105 kg airplane with engines...
(a) How long (in s) would it take a 1.00 ✕ 105 kg
airplane with engines that produce of 100 MW of power to reach a
speed of 200 m/s and an altitude of 12.0 km if air resistance were
negligible?
_? s
(b) If it actually takes 950 s, what is the power applied, in
megawatts?
_? MW
(c) Given this power, what is the average force (in kN) of air
resistance if the airplane takes 1200 s? (Hint:...
(a) How long (in s) would it take a 1.00 ✕ 105 kg airplane with engines...
(a) How long (in s) would it take a 1.00 ✕ 105 kg
airplane with engines that produce of 100 MW of power to reach a
speed of 200 m/s and an altitude of 12.0 km if air resistance were
negligible?
_? s
(b) If it actually takes 950 s, what is the power applied, in
megawatts?
_? MW
(c)Given this power, what is the average force (in kN) of air
resistance if the airplane takes 1200 s? (Hint: You...
a. How long (in s) would it take a 1.50 ✕ 105 kg airplane with engines...
a. How long (in s) would it take a 1.50 ✕ 105 kg airplane with
engines that produce of 100 MW of power to reach a speed of 300 m/s
and an altitude of 12.0 km if air resistance were negligible? b. If
it actually takes 850 s, what is the power applied, in megawatts?
c. Given this power, what is the average force (in kN) of air
resistance if the airplane takes 1200 s? (Hint: You must find the...
Find the number of passwords that use each of the digits 3,4,5,6,7,8,9 exactly once. IN how...
Find the number of passwords that use each of the digits
3,4,5,6,7,8,9 exactly once. IN how many of the passwords:
1. are the four odd digits consecutive?
2. are no two odd digits consecutive?
3. are the first three digits even?
4. are the three even digits consecutive?
How Long Would it take for $2,000 to grow to $12,000, assumingyou can earn 9%...
How Long Would it take for $2,000 to grow to $12,000, assuming
you can earn 9% return per year?
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