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November 27, 2014

Homework Help: Health: First Aid

Recent Homework Questions About First Aid

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Physics waves
I am stuck with both of these questions. Thanks in advanced! 1. If one tone has a frequency of 110 Hz and another tone is played near it with a tone of 113 Hz, the beat frequency is ___ Hz 2. A standing wave has 3 nodes in a string 20 m long. The wavelength of this wave is __ ...
Sunday, April 20, 2014 at 7:16pm

Physics waves- check answers please
1. If a bat emits 10 sounds in 5 seconds, what is the frequency of the bat's vocal outbursts (rounded to first decimal place) My answer: 2.0 Hz 2.If one crest has a 3 cm amplitude and interacts with another pulse to produce a crest 8 cm high this demonstration" a) ...
Sunday, April 20, 2014 at 6:22pm

Probability
Let Θ be an unknown random variable that we wish to estimate. It has a prior distribution with mean 1 and variance 2. Let W be a noise term, another unknown random variable with mean 3 and variance 5. Assume that Θ and W are independent. We have two different ...
Sunday, April 20, 2014 at 3:44pm

math
RM65000 will be invested for 6 years 9 months. if the investment will be offered 5% compounded semi annualy for the first 2 years, 6% compounded monthly for the next 18 months and 7% compounded daily for the rest of the period ,find the future value of this investment.
Sunday, April 20, 2014 at 11:04am

English Help Please!!!
Cohesion and Coherency/Sentence Variety This short paragraph has two distinct problems. First, to improve cohesion, rewrite these sentences so that old information is at the beginning of each sentence. Second, combine sentences and/or provide transitions to improve the ...
Sunday, April 20, 2014 at 12:51am

Math
a 120 foot long rope is cut into 3 pieces. the first piece of rope is twice as long as long as the second piece of rope. the third piece of rope id 3 times as long as the second piece of rope. what is the length of the longest piece of rope
Saturday, April 19, 2014 at 3:48pm

chemistry first year
20L of N2 and 100 L of H2 are reacted to produce NH3 what is the decrease in the V of the mixture N2+3H2--> 2NH3 Ans me with reason
Saturday, April 19, 2014 at 6:14am

chemistry first yera
A 0.4 g sample of monobasic acid requires 16cm3 of 0.1 mol per dm3 of NaOH for complete neutralization . what is the relative mass of the acid?? Plz ans me urgent
Saturday, April 19, 2014 at 6:09am

Physics
1) Determine the extension of the trampoline when a 200 kg person stands on the trampoline. (k=12000) 2) If on the first push, the trampoline went 8.0 cm below its position in part 1, find the average force exerted by his leg muscles? For the first question i was able to get 0...
Friday, April 18, 2014 at 10:11pm

statistics
a box contain five silp of paper marked 1,2,3,4and5 tow silp are selected without replacement,list the possible vaule for each of following random variable the sum of two number on two silp the difference between the first and second number
Friday, April 18, 2014 at 9:17am

cost accounting
Marvin’s Motors Company (MMC) manufactures outboard motors for use on small to medium sized boats. MMC produces three models: the Standard, the Deluxe and the Performance. The company uses a normal job costing system with manufacturing overhead applied on the basis of ...
Friday, April 18, 2014 at 8:18am

Spanish
Sra. can you please correct my answers? I am so grateful for your help! Part I Answer the questions using the "PRESENT PROGRESSIVE." 1. ¿Qué estáis estudiando ahora? Estoy estudiando español ahora 2. ¿Con quiénes están...
Thursday, April 17, 2014 at 11:18pm

Math
Food Express is running a special promotion in which customers can win a free gallon of milk which their food purchase if there is a star on their receipt. So far, 147 of the first 156 customers have not received a star on their receipts. What is experimental probability of ...
Thursday, April 17, 2014 at 9:27pm

math
{Positive multiples of 4} (Enter your answers as a comma-separated list. Enter only the first three values of this set.)
Thursday, April 17, 2014 at 6:40pm

Probability
1. You roll a number cube numbered one to six 12 times. P(5)=2/3. What type of probability is illustrated and why? A. Experimental; the result is based on the number of possible outcomes. B. Experimental; the result is found by repeating an experiment. C. Theoretical; the ...
Thursday, April 17, 2014 at 3:07pm

science
if you wanted to consult the geologic time scale for when the first vertebrates evolved, where would you look?
Thursday, April 17, 2014 at 3:03pm

comprehending/english
The question is What sources cited or quoted, and if so, to what effect? This is the paragraph: A few months back, while I was giving a workshop on LGBTQIA identities and safety, someone brought up the George Zimmerman trial. In the midst of our discussion, a white participant...
Thursday, April 17, 2014 at 11:29am

Math
The GoodMentalHealth Insurance Company has determined the number of new clients a psychologist gets per month and their respective probabilities, as shown in the table below: Number of New Clients Probability 0 0.05 1 0.10 2 0.15 3 0.35 4 0.20 5 0.10 6 0.05 The probability of ...
Thursday, April 17, 2014 at 10:10am

College Chemistry (DrBob222)
The decomposition of HCO2H follows first-order kinetics. HCO2H(g) CO2(g) + H2(g) The half-life for the reaction at a certain temperature is 44 seconds. How many seconds are needed for the formic acid concentration to decrease by 73%?
Wednesday, April 16, 2014 at 8:09pm

Chemistry - Science (Dr. Bob222)
Consider the kinetic data given in the table below for the first order reaction: What is the value of the activation energy? A_2_--> 2A Expt. Initial [A2] Temp. Initial Rate mol/L (°C) [A2]·s–1 1 0.10 100 1.2 x 10–3 2 0.20 200 4.8 x 10–3 3 0.15 ? 4...
Wednesday, April 16, 2014 at 7:18pm

Chemistry - Science (Dr. Bob222)
Consider the kinetic data given in the table below for the first order reaction: What is the value of the activation energy? A_2_--> 2A Expt. Initial [A2] Temp. Initial Rate mol/L (°C) [A2]·s–1 1 0.10 100 1.2 x 10–3 2 0.20 200 4.8 x 10–3 3 0.15 ? 4...
Wednesday, April 16, 2014 at 7:02pm

English
My Essay: A Mother’s Sense of Wonder To lose a loved one is very hard to bear, but to lose a parent can be very heart-wrenching for a child at any age. Connie Schultz wrote “My Mom’s Wonderful, ‘Pinch Me’ Life,” which was published in 2012, in the...
Wednesday, April 16, 2014 at 6:43pm

Algebra 2
What is the sum of the first 10 terms of the sequence defined by an = 3n - 3?
Wednesday, April 16, 2014 at 12:44pm

Connexus
In the 1800s, it was believed women were good at working on projects to improve the community because  (5 points) women were better leaders than men. women were better planners than men. women were more emotional than men. women were more moral than men. 2. &...
Wednesday, April 16, 2014 at 12:30pm

Aerodynamics
A small wind tunnel is being built for studying insect flight. The first test section built has a uniform height h=0.1m and length ℓ=1m. During operation its walls are found to have boundary layers which effectively start at the inlet at x=0 (the BL growth is negligible ...
Wednesday, April 16, 2014 at 10:59am

Algebra
John walked 10 miles on Saturday. He walked twice as fast on the second 5 miles of his walk than he walked on the first 5 miles of his walk. Which expression represents the time he spent walking? Let x = John's speed on the first half of his walk.
Wednesday, April 16, 2014 at 12:35am

Language Arts - Grammar - please check answers
1. Michelle Kwan has become an inspiration to us all. 2. Is Sara the runner in the blue T-shirt? 3. I could have been a contender. 4. The winner of the spelling bee was Tracy. 5. The next speaker will be Mr. Gonzales. 6. Who was the fourteenth president of the United States? 7...
Tuesday, April 15, 2014 at 11:04pm

Language Arts - Grammar - please check answers
Identify the linking verb and the predicate nominative. 1. My partner for biology lab is Penelope. 2. Jason will be the next student council president. 3. Mrs. Furillo's favorite song is still "Night and Day." 4. Rocky Marciano was the world heavyweight boxing ...
Tuesday, April 15, 2014 at 10:26pm

English
When preparing to write a summary, you should: A. highlight all main and major ideas after thoroughly reading the article. B. highlight descriptive language and examples. C. take careful notes as you read the article the first time. D. complete outside research. A
Tuesday, April 15, 2014 at 9:20pm

aeronautic
A small wind tunnel is being built for studying insect flight. The first test section built has a uniform height h=0.1m and length ℓ=1m. During operation its walls are found to have boundary layers which effectively start at the inlet at x=0 (the BL growth is negligible ...
Tuesday, April 15, 2014 at 6:46pm

Social Studies
1. What did you enjoy as a kid? Answer: I liked to hunt, study the art of war, and even shoot a firearm at times. Believe it or not when I was 14 I tried to sign on to a British war ship to be a powder monkey, but my mom wouldn't allow me to be part of it. 2. Can you tell ...
Tuesday, April 15, 2014 at 6:33pm

statistic
Listed below are the ages of actresses and actors at the times that they won Oscars for the categories of Best Actress and Best Actor. The ages are listed in chronological order by row, so that corresponding locations in the two tables are from the same year. (Notes: In 1968 ...
Tuesday, April 15, 2014 at 1:10pm

Calculus II
Compute the first 5 terms of the sequence: {b(n)}n=1-> infinity = nsqrt(6n) + (5/6)^n. ((that is:(Bsub(n))from n=1 to infinity = nth root of 6n + (5/6)raised to n.)) If the sequence converges, find the limit.
Tuesday, April 15, 2014 at 1:08pm

English
Choose the correct sentence. A. Whom do you think you are? B. Give the ledger to Mr. Bon or me. C. Either me or you should win first place. D. The secret is between Joe and I. B
Monday, April 14, 2014 at 9:19pm

HELP!
Next year (sophomore year) I'm taking the following courses: Honors Algebra II/Trig Spanish III Health AP Biology Honors English AP World History Is AP Bio and world history hard? or no it's not just the exam. Please tell me because this is my first year taking AP.
Monday, April 14, 2014 at 8:00pm

Written Communication
• Choose a topic from your personal knowledge and experience. Remember that you must utilize your first-hand experience to prove your authority to write on a topic. Purely generalized and/or factual information is not acceptable. • Write in your own words, from your ...
Monday, April 14, 2014 at 6:05pm

Calculus II
Compute the first 5 terms of the sequence: {b(n)}n=1¨‡ = nã6n + (5/6)^n. ((that is:(Bsub(n))from n=1 to infinity = nth root of 6n + (5/6)raised to n.)) If the sequence converges, find the limit.
Monday, April 14, 2014 at 5:44pm

physics
Two wires are anchored at both ends. Wire 1 has a mass of 105 grams and a length of 6.9 m. Wire 2 has a mass of 60 grams, a length of 20 m, and a tension of 143 N. What must be the tension in Wire 1 if its third harmonic is to equal the first overtone of Wire 2? T_{wire1} =
Monday, April 14, 2014 at 5:20pm

Math
Based on a preliminary report by a geological survey team, it is estimated that a newly discovered oil field can be expected to produce oil at the rate of R(t) = 300t^2/(t^3 + 32)+5 (0 ≤ t ≤ 20) thousand barrels/year, t years after production begins. Find the ...
Monday, April 14, 2014 at 5:07pm

trying to understand math
Your store’s average basket (transaction) size for the month of March was $11.50 and you believe the average basket size will remain the same for your store in April. One of your hourly employees had an average basket size of $9.00 for the month of March and averaged 125 ...
Monday, April 14, 2014 at 3:47pm

Social Studies
I am the Star Reporter who is going to visit George Washington at his home at Mount Vernon during the years of 1759-1774. I am interviewing him about his political and personal views, activities, goals, and predictions. Develop 10 questions to ask President Washington. 1. What...
Monday, April 14, 2014 at 12:29pm

Chemistry
A 0.170-mole quantity of CoCl2 is added to a liter of 1.20 M NH3 solution. What is the concentration of Co2 ions at equilibrium? Assume the formation constant (Kf) of Co(NH3)62 is 5.0× 1031 M–6. I don't really know how to start. At first I thought about setting ...
Monday, April 14, 2014 at 5:04am

math
There are 216 couples competing in a dance contest.After each half hour one-third of the contest-ants are eliminated. How many couples will remain eligible for the prize after the first hour? a. 24 b. 46 c. 48 d. 96 e. 98 please answer and explain
Sunday, April 13, 2014 at 5:12pm

LA
In all of recent American history, there has been no worse river flooding than what occurred on the Mississippi River between late June and the middle of August in 1993. Record flooding affected communities from Minnesota to Missouri. Iowa and Illinois joined those states as ...
Sunday, April 13, 2014 at 2:00pm

Geometry
Directions: Find the measure of one interior angle in each polygon. The first given is a PENTAGON. (that's all) I am drawing a blank!
Sunday, April 13, 2014 at 12:55pm

math
Julia had 150 fewer bonus points than Kelly.Bothgirls used tthe same number of bonus points. Julia was left with 1 out of 2 of her bonus pointand Kelly was left with 3 out of 4 of her bonus points.how many bonus did Kelly have at first
Sunday, April 13, 2014 at 7:09am

chemistry
The breakdown of p-nitrophenylphosphate at pH 2.6 is a first order hydrolysis process.. a) 12.5mmol of NPP were dissolved in 200mL of water at 77degrees celcius after 50mins the amount of NPP dropped to 10mmol. Calculate the average rate of this reaction and the rate constant ...
Saturday, April 12, 2014 at 5:33pm

math
There are 3 white marbles and 7 blue marbles in a bag. Jamie will randomly pick two marbles out of the bag without replacing the first marble chosen. What is the probability of Jamie picking two blue marbles
Saturday, April 12, 2014 at 12:18pm

World Civilization
1. In 1789, the National Assembly revoked the privileges of the aristocracy. This occurred in reaction to A. a peasant uprising. B. Louis XVI's withdrawal of troops from Paris. C. discontent among the poor people of Paris. D. the storming of the Bastille 2. What was ...
Friday, April 11, 2014 at 5:14pm

World History
1. In 1964, a loose union of Palestine refugees led to the formation of the Palestine Liberation Organization (PLO) under Yasir Arafat. What was the aim of the PLO? A. Driving Israel from East Jerusalem B. Establishing a Pan-Arab League C. Evicting Israel from Palestine D. ...
Friday, April 11, 2014 at 4:56pm

Science help!?
. If a kestrel eats a mouse that eats grass, the kestrel is a (1 point)producer. second-level consumer. first-level consumer. decomposer. 2. Which of the following best explains why a species of lizard is able to live in the desert but not in tundra regions? (1 point)High ...
Friday, April 11, 2014 at 4:53pm

Finance
Joe and Sue invested $1500 at Bank America in 2000, at 4% compounded quarterly. In the year 2005 they moved to another city and took the total money from their first investment added $500 and invested it at Bank Bravo, at 5% compounded quarterly. a. What is the value of this ...
Friday, April 11, 2014 at 4:23pm

math
Gopal spent three fifths of his money in the first week and one third of the remainder in the secondweek.He spent $110 altogether.How much money did he have left?
Friday, April 11, 2014 at 4:16pm

programming
create a c++ code that will set first the number of the student to be entered then get the name and their grades, After that display the name, grades & remarks of the student using arrays
Friday, April 11, 2014 at 9:57am

Calculus
Would you be able to help me with a couple of questions? thanks in advanced! 1. I am given the graph f(x)=x^2-2x. I have to draw a line tangent to the point (0,0). Then, I have to estimate the slope at that point. how would I go about answering this question? would I first ...
Thursday, April 10, 2014 at 9:31pm

Algebra II
Help me with this, please... A ball is dropped vertically from a height of 80 meters. After each bounce, the ball reaches a maximum height equal to 60 percent of maximum height of the previous bounce. a. Write the first three terms of the sequence. Explain how you know what ...
Thursday, April 10, 2014 at 1:02pm

English III
Lesson 6.07 Letter to a Citizen of Kentucky, an excerpt Executive Mansion, Washington, April 4, 1864. A. G. Hodges, Esq., Frankfort, Ky. My Dear Sir: You ask me to put in writing the substance of what I verbally stated the other day, in your presence, to Governor Bramlette and...
Thursday, April 10, 2014 at 12:37pm

Social Studies
1. Which question would best help you write a report regarding the changes to the political system during Jackson's presidency? (1 point) How did Andrew Jackson react to the results of the election of 1824? When did Andrew Jackson decide to run for president? Did Andrew ...
Thursday, April 10, 2014 at 9:59am

Algebra
written wrong the first time... [(x^2 -16) / (2x^2-9x + 4)] / [(2x^2 + 14x + 24) / (4x + 4)] Is the answer? 1 / (3+1)
Wednesday, April 9, 2014 at 11:46pm

Calculus1
A car braked with constant deceleration of 16 ft/sec^2 takes 200 ft to come to a complete stop. How fast was the car traveling when the breaks were first applied? A) if the brakes were first applied when t = 0 at position s(0) = 0, the initial velocity is an unknown, say V. ...
Wednesday, April 9, 2014 at 10:43pm

Calculus
I am re-posting this question because i wrote the incorrect function last time. An oil tank is being drained for cleaning. After t minutes there are v litres of oil left in the tank, where v(t)=35(25-t)^2, 0<=t<=25 a) determine the average rate of change of volume during...
Wednesday, April 9, 2014 at 8:53pm

Memorable Letter Evaluation (Writeacher)
Write a letter to your parents about a memorable moment in your life, using imagery to capture your experience. I origionally sumbitted a different letter, but Bob insisted that I should write more about my feelings toward my experience than using imagery. "Dear Mom and ...
Wednesday, April 9, 2014 at 8:02pm

Memorable Letter Evaluation (Writeacher)
Write a letter to your parents about a memorable moment in your life. Be sure to use imagery. I tried to use imagery, as instructed, but not wordiness. What I written: "First arriving at Girl’s Camp has become one of the most memorable moments of my life. What I had ...
Wednesday, April 9, 2014 at 6:38pm

Language arts help ms sue.
1. Based on reading only the title and headings, what would you think the article was about? (1 point) a renewed interest in hunting and fishing an animal population with an uncertain future the threat logging poses to forest animals a group of dinosaurs roaming a local ...
Wednesday, April 9, 2014 at 5:59pm

Math(Factorial)
A women student is to answer 10 out of 13 questions on a test. Find the number of choices where she must answer: (a) the first two questions; (b) the first or second questions but not both; (c) exactly 3 out of the first 5 questions (d) at least 3 of the first 5 questions ...
Wednesday, April 9, 2014 at 4:56pm

Calculus
I have a couple of questions and i wanted to know if my answers are correct. Thanks in advanced! 1. Determine the values of x for which the function f(x)=x+2/x-2 is discontinuous Would the answers be x=2 because the function would be undefined? 2. An oil tank is being drained ...
Wednesday, April 9, 2014 at 1:42pm

Chemistry
Are my answers correct? Identify each energy exchange as primarily heat or work and determine weather the sign of ?E is positive or negative for the system. A. A rolling billiard ball collides with another billiard ball. The first ball (system) stops rolling after the ...
Wednesday, April 9, 2014 at 1:30pm

Math Accounting
Determine the proposal’s appropriateness and economic viability. For all scenarios, assume spending occurs on the first day of each year and benefits or savings occurs on the last day. Assume the discount rate or weighted average cost of capital is 10%. Ignore taxes and ...
Wednesday, April 9, 2014 at 11:53am

Science
Sports teams always have instant cold packs stored in their first aid kits. Two chemicals are separated by a barrier inside the bag. Based on what you now know, explain how this cold pack gets cold without ice and what type of reaction is formed here? Please help! I do not ...
Wednesday, April 9, 2014 at 11:47am

algebra 2
if someone offers to pay you 1 penny on the first day, 2 pennies on the second day, 4 pennies on the third day, 8 pennies on the fourth day, 16 pennies on the fifth day ad so on. What is the first day on which your pay would be at least $100.
Wednesday, April 9, 2014 at 10:42am

algebra 2
Mr Brown salary is $32,000 and increases $300 each year. Write a sequence showing the salary for the first 5 years. When will he make over $34,700.
Wednesday, April 9, 2014 at 10:04am

math
Name the position of the first digit of the quotient. 1. 832/4 2. 217/7 I don't understand. Someone please explain to me.
Tuesday, April 8, 2014 at 10:24pm

physics
A thin, uniform rod is hinged at its midpoint. To begin with, one-half of the rod is bent upward and is perpendicular to the other half. This bent object is rotating at an angular velocity of 7.1 rad/s about an axis that is perpendicular to the left end of the rod and parallel...
Tuesday, April 8, 2014 at 9:40pm

Social Studies
Has the effort of Westerners to aid the rest of the world done more good than harm? Its a opinon but i would like a answer please. Please make your answer at least 6 sentences. Thank you very much
Tuesday, April 8, 2014 at 6:21pm

Reading Honors
is this a good intro paragraph use what you learned from reading "The Cask of Amontillado" to write an essay that provides an analysis of how the author creates the effect of surprise. William Shakespeare asked, “If you prick us do we not bleed? If you tickle ...
Tuesday, April 8, 2014 at 4:34pm

mathematics
The number of buds on the plant doubles every week for six weeks if there are two buds on the plant at the end of the first week calculate the number of buds that there will be at the end of six weeks
Tuesday, April 8, 2014 at 4:33pm

Physic II
Describe a situation in which you expect the initial cooling rate of a given object to be rapid and one in which the initial cooling rate might be slow. Note: the initial cooling rate is the change in temp. per second at first
Tuesday, April 8, 2014 at 3:02pm

chemistry
Are my answers correct? Identify each energy exchange as primarily heat or work and determine weather the sign of ΔE is positive or negative for the system. A. A rolling billiard ball collides with another billiard ball. The first ball (system) stops rolling after the ...
Tuesday, April 8, 2014 at 2:18pm

Physics multiple choice questions
1. Which of the following energy transformations best describes the operation of a solar powered battery charger? (a) electrical energy --> thermal energy --> kinetic energy (b) nuclear energy --> potential energy --> chemical energy (c) thermal energy --> ...
Tuesday, April 8, 2014 at 1:22pm

Algebra
Maria's average speed for a 6 hour trip was 40kph. For the first 4 hours, she drove at an average rate of 50kph. What was her average speed for the last 2 hours?
Tuesday, April 8, 2014 at 10:44am

chemistry
Are my answers correct? Identify each energy exchange as primarily heat or work and determine weather the sign of ΔE is positive or negative for the system. A. A rolling billiard ball collides with another billiard ball. The first ball (system) stops rolling after the ...
Tuesday, April 8, 2014 at 10:36am

Shakespeare:Julius C.
What side of Cassius' character is seen for he first time? " So oft as that shall be, So often shall the knot of us be called “The men that gave their country liberty.”
Tuesday, April 8, 2014 at 10:33am

Micro economics
Consider a firm with the following production function: q = (ak+bl)^(1/2) The firm's total costs can be written as C = F + rk + wl 1. Calculate the firm's contingent factor demand. Illustrate it in a graph including the firm's isoquant map 2. Assume that r/w > a...
Tuesday, April 8, 2014 at 7:16am

Chemistry
There are two containers filled with gases. In both containers, gases are at the same temperature and presssure. The first container is 3 L and contains 0.9 moles of gas. The second container is 1 L. How many moles of gas are there in the second container?
Monday, April 7, 2014 at 10:42pm

Sentence Completion
Demonstrate your understanding of the Word Bank words by completing each sentence in the space below. Word Bank: obsessed, aesthetic, arbitrary 1. Because Scott McCloud really was obsessed with comics, he probably knew all there was to know about them. 2. McCloud's ...
Monday, April 7, 2014 at 10:22pm

Single Room, Earth View by Sally Ride--Help!
This regards the story "Single Room, Earth View" by Sally Ride. Choose one of the following quotations; then in a few paragraphs, discuss how Sally Ride's observations support or refute the quotation. Quotations: 1. "Observation is a passive science, ...
Monday, April 7, 2014 at 10:07pm

Biology
Can someone please tell me if I have the right answers? Pasteur's experiments led to which theory? A. biogenesis theory B. endosymbiont theory C. evolution theory D. spontaneous generation theory I think its A or D Scientists have fossil evidence for which idea for the ...
Monday, April 7, 2014 at 9:28pm

Math
At a baseball stadium, every eighth person received a coupon for free popcorn. Every thirtieth person received a free hot dog. WHich person was the first to receive both free gifts?
Monday, April 7, 2014 at 8:50pm

English
__________ is/are located at the top of each page in the dictionary and tell you the first and last word on the page. A. Front matter B. Back matter C. Entries D. Guide words D
Monday, April 7, 2014 at 8:47pm

Language Arts
Question #1. What details support the idea that scientists and everyday citizens have different responses to the rediscovery of the ivory-bills? Back from Extinction In 2004, two biologists were canoeing in a remote part of Arkansas. They were searching for a bird that local ...
Monday, April 7, 2014 at 8:38pm

Math
​Angles A and B are located in the first quadrant. If sin a =5/13 and cos b= 3/5 , determine the exact value of cos (a+b) .
Monday, April 7, 2014 at 6:31pm

5th grade math
On each bounce a ball reaches 4/5 of the height of its previous bounce.How high will the ball bounce on its 3rd bounce? Also, how many bounces will it take the ball to bounce to a height that is less than 1/2 of the height of the first bounce?
Monday, April 7, 2014 at 5:50pm

Math
​22.​Angles A and B are located in the first quadrant. If and , determine the exact value of . How do I get 16/65?
Monday, April 7, 2014 at 5:44pm

physics
An infinitely long thin metal strip of width w=12cm carries a current of I=10A that is uniformly distributed across its cross section. What is the magnetic field at point P a distance a=3cm above the center of the strip as shown? This one requires some integration! I suggest ...
Monday, April 7, 2014 at 5:01pm

Science
Use Newton’s first law of motion to explain how wearing a seat belt in a moving car could help prevent injury.
Monday, April 7, 2014 at 4:57pm

Science
1.) Use Newton’s first law of motion to explain how wearing a seat belt in a moving car could help prevent injury. 2.) A skydiver prepares to jump out of a plane. Explain how gravity and air resistance will affect the motion of the skydiver before and after he or she ...
Monday, April 7, 2014 at 3:53pm

criminal justice
1. What was the Metropolitan Police Act? A. Established after the September 11 attacks to protect police officers in New York City B. Established in the early 1800s to form the first large-scale organized police force in London C. Established after the Great Depression to ...
Monday, April 7, 2014 at 1:20pm

Physics multiple choice questions
1. Which of the following energy transformations best describes the operation of a solar powered battery charger? (a) electrical energy --> thermal energy --> kinetic energy (b) nuclear energy --> potential energy --> chemical energy (c) thermal energy --> ...
Monday, April 7, 2014 at 12:39pm

physics
An infinitely long thin metal strip of width w=12cm carries a current of I=10A that is uniformly distributed across its cross section. What is the magnetic field at point P a distance a=3cm above the center of the strip as shown? This one requires some integration! I suggest ...
Monday, April 7, 2014 at 5:36am

Physics -- check answers please
1. Which of the following energy transformations best describes the operation of a solar powered battery charger? (a) electrical energy --> thermal energy --> kinetic energy (b) nuclear energy --> potential energy --> chemical energy (c) thermal energy --> ...
Monday, April 7, 2014 at 12:15am

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