# Posts by John

Total # Posts: 8,428

physics
how did nikola tesla change the world? and why students do not know about him and his inventions?

math
Give answer to 40+40x0+1

physics
A person takes a trip, driving with a constant speed of 90 km/h except for a rest stop for 30min. If his average speed is 78 km/h, how much time is spent on the trip and how far does the person travel?

Logarithms
What's the fastest way to find Anti Logarithms(not using interpolation or a log table) can anyone give me an example using any kind of value? (preferably solving triangles)

Math
Rounding this comes out to the actual answer. How do I explain why?

physics
12

Logarithms
Thanks!

Logarithms
What's the fastest way to find Anti Logarithms(not using interpolation or a log table) can anyone give me an example using any kind of value? (preferably solving triangles)

Logarithms
What's the fastest way to find Anti Logarithms(not using interpolation or a log table) can anyone give me an example using any kind of value? (preferably solving triangles)

Logarithms
But how can you do the inverse? such as Log cot B 0.1690 = what angle? should find the cot first then the log?

Logarithms
What's the best way to find Angles using logarithms and vice-versa. Ex: log cot 0.1690 and log sin (25degrees 22min) log sin (25+22/60) = log sin 22.3666666667 = sin 0.38053243281 = (-0.41960832236) Is there a simpler way to do these? I get confused with finding the angles...

physics
Coasting due east on your bicycle at 8.0 m/s, you encounter a sandy patch of road 7.4 m across. When you leave the sandy patch your speed has been reduced to 5.5 m/s. Assuming the bicycle slows with constant acceleration, what was its acceleration in the sandy patch? Give both...

computers
I need someone help me to modify PDF file by any program Photoshop...

algebra
R=ã(3V/ƒÎH) solve for V.

physics
A battery of emf and negligible internal resistance is connected to two resistances R1 and R2 in series. What is the potential difference across R2?(a)E(R1+R2)/R2(b)E(R1+R2)/R1(c)ER2/R1+R2(d)ER1/R1+R2

Algebra
simplify by removing parentheses and collecting like terms. 48q-22-( 7+37q )

Algebra
Use the distributive law to factor the following: Check by multiplying. 22x+11y+55z =

Math simplifying mixed radicals
the square root of 20 minus the sqare root of 5 plus the square root of 45

math plzzzzzzzzzzzzzzzz help!!!!!!!!!!!!!!!!!!
I have a value of 90000 is what she has on the paper. I was thinking it was a typo, so I decided to do more research.

math plzzzzzzzzzzzzzzzz help!!!!!!!!!!!!!!!!!!
i am a six digit number less than 300,000. i have the same digit in my greatest and least place value. i am an even number. i have value of 90,000. the rest of my digits represent the smallest whole number. what number am I?

math
i am a six digit number less than 300,000. i have the same digit in my greatest and least place value. i am an even number. i have value of 90,000. the rest of my digits represent the smallest whole number. what number am I?

Physics
A person jumps straight up. Do they spend more time in air while in the top half or bottom half of the total height? What is the ratio of the two times?

Physics
A ball is thrown straight up, when it reaches the maximum height x, a second identical ball is thrown up with the same initial velocity as the first one. Where will these balls meet.

Physics
A ball is thrown straight up, when it reaches the maximum height x, a second identical ball is thrown up with the same initial velocity as the first one. Where will these balls meet.

math
write the following as decimals 6/15 4 3/8 6 4/11 10 3/4

college physics1
Well, assuming the gravity still has a value, named "g" (although the building is infinitely tall and then its value should be zero), the velocity should be, v=-gt take t=2, and you have, v=-2g If you assume g=9.8 m/s^2, then, v=-19.6 m/s. But remember that ...

Algebra
-14-105=-119

Algebra
I need to simplify this: 2(-7) + 15(-7) =

Chemistry
The reaction is NO+1/2O2 ----> NO2 Then the moles of O2 needed are, n=2.2*1/2=1.1 mol O2 So the mass is M=1.1*32=35.2 grams (Molar mass of O2 is 32 g/mol). The moles of NO2 produced are, n=2.2 mol And the mass, M=2.2*46=101.2 g (Molar mass of NO2 is 46 g/mol)

math
A perfect square is, (a+b)^2=a^2+b^2+2ab So you have to adapt the equation given to this expression. The term with x should be of the form 2ab, but a=sqrt(2)x, so b=5/(2*sqrt(2)), then 2x^2-5x-12=(sqrt(2)*x)^2+sqrt(2)*x*5/(2*sqrt(2))+25/8-25/8-12=0 (sqrt(2)x+5/(2sqrt(2)))^2=...

physics

us history
how do i make mine better though

us history
is this a good thesis statement for a paper i have to write about changes in the us from 1776 to 1870? "while we are still not a perfect country, political,social and economical changes are shaping up out country" is it ok or is there anything i can do to make it ...

u.s. history
how bout this one. while we are still not a perfect country, political,social and economical changes are shaping up out country

u.s. history
how can i make this one better?

u.s. history
is "positive changes that happened from 1776-1879 in American history" a good thesis?

u.s. history
ok im no good at thesis though but i will study up the site you showed me

u.s. history
well i was thinking about using some what along the lines of new inventions bring new era for the united state but my teacher said the paper has to be 5 paragraphs long with introduction 1st body(political changes)2nd body(economic changes,3rd body(social changes) and ...

u.s. history
i need a good thesis statement for a history paper i have to write. the topic is changes that took place in the U.S. from 1776-1870 im not good at thinking up thesis statements please help

Religion
Why does the Church encourage the faithful to read and study Scripture in light of the teachings of the Church?

COM 200 Quiz
HELLO!?!? ANYBODY THERE!?!?!?

COM 200 Quiz
I am checking to see if my answers are correct. If you see any that are wrong please let me know.

COM 200 Quiz
1. My boss, Josie, is a great supervisor because she listens to each employee’s concerns and ideas. Josie is an example of a: (Points : 1) *a) Social schema b) Stereotype c) Person Schema d) Prototype 2. Beth believes that she does a good job of presenting herself as a ...

math
how do you solve this 1/(1+ã2)+ã3/ã5

chemistry
1234

Quantum physics
what is the answer??

math
An amusement park charges an admission fee of dollars per person. The cost, (in dollars), of admission for a group of people is given by the following function. What is the cost of admission for a group of people?

How are colloidal dispersions different from other types of dispersed systems?

parentheses
Add parentheses so that following equation is correct 7+9X3-1=25

Statistics
1. A pie chart can not be used for a frequency distribution with overlapping classes. A) True B) False True?

Math
An observational study is described. Determine the nature and scope of the conclusion the study can reach. In a group of 500 women, those who smoked moderately did worse on tests of reaction time than those who did not smoke. A) Smoking moderately causes women to do worse on ...

chem
5.4

Explain the importance of solubility to dissolution.

Math factors
Factors of 800

Genetics
Genes: Brown = B Big eyes = E Small ears = S Frizzy hair = F These 4 phenotypes B, E, S, F are dominant. Recessive alleles = b, e, s, f Assume that all 4 genes are present on the same chromosome and 1) Be/bE and be/be resulted in 400 Be/bE, 300 be/be, 200 bE/be, and 100 Be/be ...

math
it is a easy way to do multipucation using pictures, like I did with fours. there are fours rows of 4s and 6 columns of 4s 6x4= 24. 444444 444444 444444 444444

Social Studies
No se

Health
the national weight control registry found that those who maintained weigth loss reported imporvements in what

ENGLISH
revise the following paragraph, improving it without changing its overall meaning. pay particular attention to any subject- verb agreement errors. You ever felt sleep deprived? college students often complains that they are not getting enough sleep.

Math
This can't be correct. There are four suits so wouldn't the sample space be 45 x 4 = 180??

Physics
When pressure sores develop from sustained positions, the damage occurs at two locations simultaneously â€“ the superficial layers of skin next to the table, and the deep tissue next to the bony structure (e.g. lateral aspect of the femur) that the patient is ...

Physics
6. Within an x-ray tube, a metal disc (the anode) receives a huge amount of energy that is converted to internal energy (heat) within the anode. The surface temperature can easily reach 2000° C. Because the anode is within a vacuum and therefore there is no air around the ...

physics
Two long, straight, parallel wires 10 cm apart carry currents in opposite directions. (a) Use the right-hand source and force rules to determine whether the forces on the wires are (1) attractive or (2) repulsive. Show your reasoning. (b) If the wires carry equal currents of 3...

marketing principals and information technolgy
exam questions and answers

math
An object with mass m is attached to a string and the other end of the string is attached to a peg at the center of a level table. The object is set into uniform circular motion around the peg. The radius of the motion remains constant (the string does NOT wind up on the peg...

Math
12

Stats
ya i am working on it

POL 201 American National Government
#4 is D Bur Dem

POL 201 American National Government
I got 9 out of 10 right...don't know which one I got wrong tho

POL 201 American National Government
1) Presidents often seek to control the federal bureaucracy by doing all of the following except: a) filling the top echelon of executive organizations with political appointees who share their values. b) assigning members of the White House staff responsibility for monitoring...

Chemistry
A piece of wood found in an ancient city has a carbon-14 to carbon-12 ratio that is one-eighth the carbon-14 to carbon-12 ratio of a tree growing nearby. How old is the piece of wood? (The half-life of carbon-14 is 5,715 years.)

Chemistry
An artifact has a carbon-14 to carbon-12 ratio that is one-fourth the carbon-14 to carbon-12 ratio of a similar modern object. How old is the artifact? (The half-life of carbon-14 is 5,715 years.)

eth/125
Racial diffrences

eth/125
Ethnicity refers to a.racial differnces b.diffrences in physical and mental characteristics c.cultural diffrences d.citizenship

American National Government
2) d 3) a ???

American National Government
Thank you! What would you say 2 and 3 are?

American National Government
1) a 2) c 3) c 4) d 5) d Is that right?

American National Government
1-During a hearing, executive branch officials are asked to: a) report on what their agency or department has been doing. b) state their intentions for reelection. c) pass new legislation proposed by Congress. d) approve funding for upcoming programs. 2-The division of ...

physics
The drawing shows the top view of two doors. The doors are uniform and identical. Door A rotates about an axis through its left edge, and door B rotates about an axis through its center. The same force is applied perpendicular to each door at its right edge, and the force ...

math
1. Lisa is 15 years old and her father is 40. How many years ago was the father six times as old as Lisa? 2. Joel is one third the age of Bob. In 7 years the combined ages of the boys will be 58. How old is each boy now? 3. Tom is three times as old as Leigh Ann. In 7 years, ...

Algebra
1. Simplify the expression. ¡Ì625 2. Evaluate the expression for a = ¨C1 and b = 5. 5a ¨C 7

alg 1
2x − 2y − 5z + 2x + 2y + 3z

statistics
agte

math
1022.40

math
A home was valued at &73,500. It was insured for 80% of its value at a premium of &0.40 per \$100. Find the yearly premium.

trig, math
A 175-pound force and a 230-pound force are acting on the same point in directions that differ by 42°. What is the angle that the resultant makes with the 175-pound force?

trig, math
Which of these functions has period 7? A)y= cot 7/pi x B)y= tan pi/7 x C)y= sin 7/pi x D)y= cos pi/7 x

Discrete Math
A special type of password consists of four different letters of the alphabet, where each letter is used only once. How many different possible passwords are there?

Chemistry
5542.68

Excel
I have my employee schedule in a excel sheet. It is a weekly schedule that doesn't change week by week, but changes day by day within a week. Every Monday, Tuesday, etc. is the same schedule. In the file are days for Monday, Tuesday, etc.. I don't know if this possible...

English
Can you please have a look at these questions I need to prepare for tomorrow? 1) Outline briefly the main features of English Romanticism. 2) Give a definition of primary and secondary imagination as given by Coleridge in his Treaty of Philosophy. 3) Which characteristics of ...

trig, math
In a right triangle with g the right angle, b = 86.5 and c = 125.8. What is β ?

Java Programming
I need to create a pseudocode for the follwing application: Write Java-like pseudocode to specify the logic for the following program application: Write an application that prompts an employee for an hourly pay rate and hours worked. Compute gross pay (hours times rate), ...

English
I still have a few questions to check. I really hope you can check them. Thank you! 1) Which metaphors does the poet use to address the urn in the first stanza? 2) How is the urn described? What figure of speech is used in line one and two “Heard melodies are sweet, but ...

Government
number 11

English
Can you please help me express the first two questions? I also need you to go through the other questions and tell me if they are grammatically correct. Thank you very much in advance. 1) What role does time play in the narrative technique of the interior monologue? 2) Which ...

math
A market research company surveyed 2500 teenage cell phone owners. The company learned that 4/5 of them use cell phone data services. How many teenagers surveyed use cell phone data services?

Economics
Calculate the total dollar amount paid for a house purchased for \$200,000. The buyer paid \$50,000 as down payment and the remaining \$150,000 was obtained with a closed mortgage having a 25 year loan at 10% interest compounded semi-annually and a monthly payment period. Assume ...

English
These are the very last things. Thank you very, very much. 1) In Joyce’s story The Sisters Nannie brings a decanter of sherry and some wine-glasses and invites the protagonist to take a little glass of wine. 2) Briefly refer to the plot of Joyce's tale The Sisters? ...

English
I left out a few more questions. Thank you very much in advance. 1) How is Mrs Dalloway described at the beginning of the novel? What is Mrs Dalloway fond of? 2) Who is Septimus Warren Smith? Describe Septimus and his wife Lucretia's reactions to the bursting of the car&#...