Question

1)If h(x) is 20 bits, how many values, in theory, do you need to compute before you can expect to find a collision with 50% of probability?

Group of answer choices

a)2^15 = 32768

b)2^19 = 524288

c)2^20 = 1048576

d)2^10 = 1024

2)You have 2 56 possible different passwords

How many tries do you need in average to find the password with an exhaustive key search?

Group of answer choices

a)2

b)2^55

c)2^28

d)2^56

3)These are the Equal Error Rates of 4 Biometrics:

A: 10.0

B: 0.0001

C: 0.1

D: 1.0

If you need to use the most accurate among them, which one would you choose?

Group of answer choices

a)D

b)A

c)C

d)B

Answer #1

How many grams of magnesium hydroxide do you need in an antacid
tablet to neutralize 20 mL of stomach acid? (Stomach acid is 0.1M
HCl. There are 3.65 g of HCl in 1 L of stomach acid.) Show your
work.

1a. You have 2.32 x 1024 molecules of water, H2O. How many moles
of water is this ?
a. 18.02 moles b. 3.85 moles c. 6.022 x 1023 moles d. 4.18 x
1025 moles
1b. How many grams of water are in the sample described in part
“a” ?
a. 18.02 grams b. 2.32 grams c. 69.4 grams d. 6.022 grams
1c. How many hydrogen atoms are the sample described in part
“a”?
a. 2 b. 2.32 x 1024 c....

When driving at a constant velocity, why do you need to press on
the accelerator?
Group of answer choices
a. The engine exerts a force to counteract friction and wind
resistance.
b. A force is always required to maintain constant velocity.
c. The engine creates the velocity as you drive.
d. This actually has no effect, it's just a habit.

River Front restaurant has the average check at $25, which the
foods are $20 and beverages are $5. The profit margin is 30% for
food and $2 for beverage. The fixed costs that includes payroll,
rent, and utilities are anticipated for $200,000 per month. (Please
answer the question 46 to 50
46.
What is the weighted CMR for River Front restaurant?
Group of answer choices
a. 30%
b. 35%
c. 32%
d. 36%
47.
What is the revenue at breakeven...

How many liters of 0.200 M sodium hydroxide do you need to
titrate 0.400 L of a 0.100 M diprotic acid to the equivalence
point? 0.400 L NaOH
A. 0.200 L NaOH
B. 0.300 L NaOH
C. 0.400 L NaOH
D. 0.500 L NaOH
E. 0.800 L NaOH

At what interest rate would you need to earn from an investment
in order to accumulate $17,632 after 5 years if you invest $12,000
now?
Group of answer choices
A. 6%
B. 10%
C. 8%
D.7%
A bond has a market price that exceeds its face value. Which one
of these features currently applies to this bond?
Group of answer choices
A. Yield to maturity is lower than the coupon rate
B. Yield to maturity is equal to the coupon...

1) how many grams of barium nitrate are needed to prepare 100.0
mL of 0.450 M solution?
2) Calculate the Molarity of the solution prepared by dissolving
35.0 g of NaNO3 in a total volume of 150.0 ml solution.
3) What volume of 0.0955 M KMnO4 (aq) solution can be prepared
from 1.256 g of KMnO4?
4) what is the molarity of the solution prepared by diluting
45.5 mL of 5.00 M HNO3 to 650.0 ml?
5) what volume of...

1. Do one of the following, as appropriate: (a) Find the
critical value zα/2, (b) find the critical value
tα/2, (c) state that neither the normal nor the t
distribution applies.
90%; n = 10; σ is unknown; population appears to be normally
distributed.
Group of answer choices
A. zα/2 = 2.262
B. zα/2 = 1.383
C. tα/2 = 1.833
D. tα/2 = 1.812
2. Find the margin of error.
95% confidence interval; n = 91 ; = 53, s =...

Your problem: Show how you would make 2 liters of a 20% glucose
solution.
Before you solve the problem organize
you thoughts on paper in the following manner (Show all
work!!):
What will my answer look like? What units will I be using?
What do I need to know before I can start solving this problem?
Do I know what the word “solution” means? Do I know what “%
solution” means?
What is known (given in the problem)??? How many...

How much do you need to deposit today (P) to withdraw $25,000 at
n =1, $3,000 at n = 2, and $5,000 at n =4, if your account earns
10%
a) Find annual interest
b) Find A

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 4 minutes ago

asked 4 minutes ago

asked 8 minutes ago

asked 9 minutes ago

asked 29 minutes ago

asked 40 minutes ago

asked 46 minutes ago

asked 53 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago