Homework Help

A car starts from rest and accelerates down a slope. The acceleration remains constant as the car travels from the top to the bottom of the slope. The average speed of the car is 2 m/s. The speed of the car as it reaches the bottom of the slope is: A. 0 m/s B. Between 0 m/s and 2 m/s C. 2 m/s D. Between 2 m/s and 4 m/s E. 4 m/s F. Greater than 4 m/s

A circular target of unit radius is divided into four annular zones with outer radii 1/4, 1 /2, 3/4, and I, respectively. Suppose 10 shots are fired independently and at random into the target. (a) Compute the probability that at most three shots land in the zone bounded by the circles of radius 1 /2 and radius 1. (b) If 5 shots land inside the disk of radius 1 /2, find the probability that at least one is in the disk of radius 1 /4. My answers:(a) [math] \displaystyle\sum_{k=0}^{3}\binom{10}{k}(\frac34)^k (\frac14)^{10-k}[/math] (b)[math] \frac{\displaystyle\sum_{k=1}^{5}\binom{5}{k}(\frac{1}{16})^k(\frac{3}{16})^{5-k}}{\binom{10}{5}(\frac14)^5(\fra…

Hello all, I have a solution from a sugar refinery and I know the concentrate (in g/L) of the sugar. How do I convert this to weight %? I'm thinking I need to use the density, but does it have to be the density of the sugar solution or density of water (I'm not even sure if the sugar is dissolved in water- it looks like brown viscous liquid from the refinery)? Thanks in advance.

I was in a debate about these two grand characters a few days ago and wanted to know what the community thinks about it. We have two great minds in Alan Turing and Charles Babbage. We decided to see which of them had a greater contribution to the advancement of the computer as well as how to interact and implement them in every day life. All replies welcomed!

What are coupling constants?

I am trying to place an atomic clock inside of a foucault pendulum. I then want to have 5 of them set up at key waypoints from the north to the south pole recording time inside of the pendulum as it swings. With this data from all the way points we can then observe how time inside of a pendulum may be different than time on earth. Or it could be a big waste of time period. But a fun pricey experiment I will try to conduct.

I'll present few cases of RSA encryption: [math]CT=(PT)^e mod \, n[/math] [math]PT=(CT)^d mod \, n[/math] CT= Cipher Text PT=Plain Text e*d/m should give remainder 1, where; m=(p-1)*(q-1); where p, q are 2 prime numbers. A) Sender takes p=3, q=11. The value of e=3, d=7 satisfied the remainder=1 condition. So, if sender wants to send "SELL": S=19, CT=28 E=5. CT=26 L=12, CT=12 L=12, CT=12(? What to do to not get the cipher text same as plain text without making things too complex and still being able to do it in paper m…

This is taken from this book: https://books.google.com.np/books?id=k-rKDwAAQBAJ&pg=PA91&dq=advanced+encryption+standard&hl=en&sa=X&ved=2ahUKEwj_nIeU6t75AhUMGKYKHbJWDms4oAEQ6AF6BAgGEAI#v=onepage&q=advanced%20encryption%20standard&f=false Page 102 I've used this method given in this pdf below to calculate "mix column" step output. https://www.networkdls.com//Articles/AESbyExample.pdf It's in page number 9. I'm trying to find this below ( + means XOR here) 1*36+2*b9+3*a5+3*38 =36+69+f4+48 =e3

Hi there. I am about to enter my final year of a computer science bachelor degree and must do a final year project that spans most of the academic year. I have some experience on the artistic side of computer graphics but none in the computer science side. I would be interested in developing some kind of ray tracer as a final year project but have been told that my project should be technically challenging, have a reason for someone to use my version over any existing version and solve some kind of particular problem. Perhaps I am out of my depth trying to develop a ray tracer that can satisfy the above criteria when I have no prior experience? Some have talked …

First I'll give some context about how the book's written as many books are presenting it in different ways. Reference: CRYPTOGRAPHY AND INFORMATION SECURITY, THIRD EDITION By PACHGHARE, V. K. Confusions: 1) Why is Expansion Permutation called so? The name sounds very contrary to what what you'd expect a Expansion Permutation to do. You'd expect it to work like say 4:16 decoder. 2) Why is Expansion Permutation done here? The number of bits remained the same. What's the difference? Or are we calling after discarding parity bits as "Expansion Permutation"? 3) Plus I'…

It is sometimes necessary to compute E° for a given half reaction from other half reaction of known E°. For example, the standard electrode potential for the oxidation of Titanium metal to Ti³⁺ can be obtained from the following half reaction: Ti²⁺ + 2 e⁻ ⇌ Ti⁰ E° = -1.63 Volts ① Ti³⁺ + e⁻ ⇌ Ti²⁺ E° = -0.37 Volts ② Calculate E° for Ti⁰ ⇌ Ti³⁺ + 3 e⁻ My answer: ② is more spontaneous reaction than ①. Reduction: Ti³⁺ + e⁻ ⇌ Ti²⁺ E° = -0.37 Volts ; Oxidation: Ti²⁺ + 2 e⁻ ⇌ Ti⁰ E° = -1.63 Volts Hence, E∘rx=E∘red−E∘ox=−0.37V−(−1.63V)=+1.26VErx∘=Ered∘−Eox∘=−0.37V−(−1.63V)=+1.26V My answer matches with author's answer. But, Is my logic in answe…

Is the above intuitive explanation of "why the inequality [math] P(A_2|A_1) > P(A_1)[/math] is true" correct?

My answer to (a) N= Total symbols on each page. r= 50 misprints. So, what is impossible is two or more misprints occurring in the same symbol. So, first condition of Fermi-Dirac statistics is satisfied. All distinguishable arrangements satisfying the first condition have equal probabilities. In our case, It is [math]\binom{500N}{50}^{-1}[/math]

. Show that if f points in the same direction as r'(t) at each point r(t) along a smooth curve C, then [math]\displaystyle\int_C f\cdot dr = \displaystyle\int_C ||f|| ds ?[/math] How can I prove this corollary in line integral?

Suppose that coin 1 has probability 0.7 of coming up heads, and coin 2 has probability 0.6 of coming up heads. If the coin flipped today comes up heads, then we select coin 1 to flip tomorrow, and if it comes up tails, then we select coin 2 to flip tomorrow. If the coin initially flipped is equally likely to be coin 1 or coin 2, then a)what is the probability that the coin flipped on the third day after the initial flip is coin 1? b)Suppose that the coin flipped on Monday comes up heads. What is the probability that the coin flipped on Friday of the same week also comes up heads? My attempt to answer this question:

These are the steps of indexing in Lucene given in our syllabus-: I understand the second step clearly. But I don't understand the first and third step. It's not mentioned clearly in this figure imo. Can you clear my confusion? Plus the sources that I refer don't even mention it like this, they explain it differently. I'm not sure from where this is copied from. What are we doing in first vs third step as written in that figure text? Why was indexwriter created first and not used later? Because according to my information that I've collected, you can also use indexwriter to add/remove/update indexes. I've a good feeling that all …

What is the difference between cooperativity and allostericism?

Design the markov model and transition matrix for the given data. Answer the following questions based on the mode. a) If a person purchase coke now the probability of purchase of coke next time is 80%. b) If a person purchases pepsi now the probability of purchasing pepsi next time is 70%. Then, Find the probability of using coke for a current pepsi user in 4th purchases-: My solution-: This is the transition diagram. This is the transition probability matrix-: So, what I did was basically to Took this TPM(Transition Probability Matrix) to the power 4. My basis for doing this was this source-…

I am studying about components of a system. Activity-: It is What entities do to cause changes is activity. It is represented by time period of a specified length. Event-: Event is defined as an instantaneous occurrence that might change state of the system. Endogenous events occurs within the system and exogenous events occurs outside the system. eg-: making a deposit is an activity, arrival of customer is an exogenous event and completion of service of a customer is an endogenous event. I don't see any difference between them. making deposits can also be an event as it'll change the state of the system. i.e money in bank account. The o…

help on amylose nmr spectra

1. Plasmalogens are abundant in certain types of membranes. Find a particular example and explain what is the role of these lipids in said membrane. what is known about the lipid rafts present in the inner nuclear membrane.

Could anyone please help me with the reaction between BaO

Use a line integral to find the lateral surface area of the part of the cylinder [math]x^2 +y^2 =4[/math] below the plane x + 2y + z =6 and above the xy-plane. How to answer this question? What is the answer of this question? Graph of the required lateral surface area of the cylinder is given below:

Author computed [math]F_{X_k} (x)[/math] as follows. but I don't understand it. Would any member explain me the following computations?