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October 1, 2014

Homework Help: Health: First Aid

Recent Homework Questions About First Aid

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Trig
Two planes take off at the same time from an airport. The first plane is flying at 240 miles per hour on a bearing of S 45.0° E. The second plane is flying in the direction S 45.0°W at 290 miles per hour. What is the bearing of the second plane from the first after 5 ...
Wednesday, October 1, 2014 at 6:07pm

Algebra
Write a system of equations to match each of these problems. Then solve the equations using the method... Substitution, or linear combinations. 1. Maria started her savings account with $105. She adds $10 to it each month, including the first month. Jana Rae started her ...
Wednesday, October 1, 2014 at 6:01pm

E.L.A. PLEASE CHECK!
Which choice is a sentence fragment? A- Swept the floor first, then washed dishes. B- Turning on the light, he suddenly got a shock. C- In the first year, Julio won three blue ribbons. D- Maggie’s photos were displayed in the lobby. I think it is A.
Wednesday, October 1, 2014 at 5:18pm

E.L.A. PLEASE CHECK!
Which choice is a complete sentence? A- Stacks of books to be shelved. B- When Francine cooked dinner for the first time. C- The actor played the leading role. D- Gave her a blue bicycle for her birthday. I think it is C.
Wednesday, October 1, 2014 at 5:16pm

Trigonometry
Hi this is a two part question. I got the first part but can't figure out second. Please help! A home is designed to keep sun off outside south wall during summer months and have wall exposed to dun as much as possible during winter months. The highest angle of sun in ...
Wednesday, October 1, 2014 at 2:56pm

physics question solved
What is the rate of deceleration of a 1400-kg SUV that is going 75.0 km/h and then slows to 25.0 km/h in 8.20 s? Figured it out, Don't worry about the mass, just solve for Deceleration. which is deltavelocity/delta time >>Subtract First(75 - 25) = 50 km/hr*(1hr/3600 ...
Wednesday, October 1, 2014 at 2:37pm

Math
1. A 16-team bowling league has 800,000 to be awarded as prize money. If the last-placed team is awarded 12,500 in prize money and the award increases by a constant amount for each successive finishing place, how much will the first-placed team receive? 2. In Museum A, a stamp...
Wednesday, October 1, 2014 at 7:10am

chaitanya
A car moving with constant acceleration covers the distance between two points 180m apart in 6sec.its speed as it passes the second point is 45m/s.what is its acceleration and its speed at the first point.
Wednesday, October 1, 2014 at 4:57am

math
Write the first six terms of the arithmetic sequence with the given properties. a = 3, d = 2 a. 3,8,13,18,23,28 b. 3,5,7,9,11,13 c. 3,6,8,10,12,14 d. 2,7,12,17,22,27 e. 2,4,6,8,10,12
Wednesday, October 1, 2014 at 4:11am

Find the pattern
Our trip lasted for 12 days we arrived Sunday July 1 and left on Thursday July 12th where we stayed everyday something went wrong the electricity went out the water was shut off sliding patio wouldn't close the gas oven didn't work, and it rained. Out of the 12 days it...
Wednesday, October 1, 2014 at 12:09am

Math (LCM)
A music store gives every 20th customer a $5 gift card. every 50th customer gets a $10 gift card. Which customer will be the first to receive both types of gift cards? Use prime factorizations.
Tuesday, September 30, 2014 at 10:04pm

Math (LCM)
A music store gives every 20th customer a $5 gift card. every 59th customer gets a $10 gift card. Which customer will be the first to receive both types of gift cards? Use prime factorizations.
Tuesday, September 30, 2014 at 9:56pm

Math
A woman has a total of $10,000 to invest. She invests part of the money in an account that pays 6% per year and the rest in an account that pays 9% per year. If the interest earned in the first year is $750, how much did she invest in each account?
Tuesday, September 30, 2014 at 8:36pm

Math
Travis has a total of $6,000 invested in two accounts. The total amount of interest he earns from the accounts in the first year is $420. If one account pays 6% per year and the other pays 9% per year, how much did he invest in each account?
Tuesday, September 30, 2014 at 8:36pm

geography
now write an order word from the box for each step.first,next,then,last
Tuesday, September 30, 2014 at 6:28pm

Math (What Do I Do)
Choose the best graph for the given situation. Copy the graph and label the axes with the variables give in parenthesis (the first variable goes on the y axis and the second variable on the x axis). 1.Karina walked from home to the library, did some homework, then walked back...
Tuesday, September 30, 2014 at 5:59pm

Pre-Calculus/Trigonometry
For the sequence an = 4n + 5: find: the first five terms: find the sum of the first 25 terms: is it a arithmetic sequence? If so how can you tell, if not, why not?
Tuesday, September 30, 2014 at 4:20pm

History
After the First Seminole War, the Seminole tribe was __________. A.forced to move south to avoid settlement and the US government B.given old lands to the north to encourage assimilation C.forced to leave its lands and be removed to the West D.given lands lost by the Creek ...
Tuesday, September 30, 2014 at 2:28pm

physics
A mass pulled by a constant force accelerates from 10 cm/s to 40 cm/s in 5.5 s. A second force accelerates the same mass from rest to 105 cm/s in 15.0 s. If the first force is known to be 5.0 N, that what is the magnitude of the second force?
Tuesday, September 30, 2014 at 1:41pm

English
Javier, Hey, bud. It's great to hear from you and even better to find you you're doing well. We just got off vacation in the islands, and it was awesome. I'm sunburned, tired, and a little sorry that it's over. You didn't mention what you did this summer. ...
Tuesday, September 30, 2014 at 12:56pm

English
Javier, Hey, bud. It's great to hear from you and even better to find you you're doing well. We just got off vacation in the islands, and it was awesome. I'm sunburned, tired, and a little sorry that it's over. You didn't mention what you did this summer. ...
Tuesday, September 30, 2014 at 12:32pm

stats and prob
Consider a sequence of independent Bernoulli trials with p= 0.2 a) what is the expected number of trials to obtain the first success? for this I thought of it as geometric so 5 trials b) after the eighth success occurs, what is the expected number of trials to obtain the ninth...
Tuesday, September 30, 2014 at 11:33am

Communication
Question 1. 1. Which of the following guidelines are most correct regarding rules for responding to self-disclosure? (C) Respond back immediately, support the person disclosing, and listen critically. Listen critically, never use the disclosure against the other person, don&#...
Tuesday, September 30, 2014 at 11:05am

physics
One ball is dropped from a cliff. A second ball is thrown down 1.00 s later with an initial speed of 40.0 ft/s. How long after the second ball is thrown will the second ball overtake the first?
Tuesday, September 30, 2014 at 10:50am

English
discuss the current state of the field of early childhood care and education from your own perspective. In this field, what does it mean to be a professional and what does it mean to be in a profession? Include a component of political analysis in your paper (e.g. a provincial...
Monday, September 29, 2014 at 7:53pm

math
write a ratio in 3 ways, comparing the first quantity to the second. A week has 5 school days and 2 weekends. Second question about 1 in 4 people swims at least 6 times each year.
Monday, September 29, 2014 at 7:37pm

Math
Pat and Kelly went hiking in the mountains. They started at 9,100 ft. They climbed 1,200 ft the first day, descended 900 ft the second day, and climbed 1,000 ft the third day. On the fourth day they descended 800 ft. What was the average altitude at which they hiked?
Monday, September 29, 2014 at 7:08pm

Math
the temperature dropped 18 degrees F between 6 am and 6 pm. during the night the temperature fell another 8 degree F. at 6 am the temperature started rising. It rose 1degree F the first hour, 2 degree F the second hour, and 4 degree the third hour. The temperature rose another...
Monday, September 29, 2014 at 6:54pm

c++
when i compile the following, many erors appear // include necessary libraries #include <iostream> #include <cmath> // use std namespace using namespace std; int main() { // declare the value of PI const double PI = atan( 1.0 ) * 4.0; // declare variables to store ...
Monday, September 29, 2014 at 5:39pm

Math
the temperature dropped 18 degrees F between 6 am and 6 pm. during the night the temperature fell another 8 degree F. at 6 am the temperature started rising. It rose 1degree F the first hour, 2 degree F the second hour, and 4 degree the third hour. The temperature rose another...
Monday, September 29, 2014 at 4:59pm

History
Which best describes why the Neolithic Revolution was such an important turning point in history? A- people began to control their physical environment for the first time B- religion emerged as people planted and harvested crops C- metal tools allowed strong rulers to conquer ...
Monday, September 29, 2014 at 4:26pm

Algebra
Please Help Me with this problem:Ozark Furniture Company can obtain at most 3000 board feet of maple lumber for making its classic and modern maple rocking chairs. A classic maple rocker requires 15 board feet of maple, and a modern rocker requires 12 board feet of maple. ...
Monday, September 29, 2014 at 2:33pm

World History Answer Check
1. Who was Anne-Louise-Germaine de Staël, and why was she significant? A: Anne-Louise-Germaine de Staël was a prominent writer of the revolutionary and Napolenic eras in France. She was significant because she established a salon for the powerful that lasted from ...
Monday, September 29, 2014 at 8:05am

World History
Where did farming first develop? A.Southwest Asia B.southeastern Europe C.India D.China I think it is A. Am i correct?
Sunday, September 28, 2014 at 10:04pm

physics
A slowly moving train with 15.0- m-long flatcars is passing a station at 11.0 km/h. A person on the station platform tosses rocks onto the moving flatcars at the rate of one every second. If the first rock just hits the front edge of one car, how many rocks will fall onto that...
Sunday, September 28, 2014 at 9:52pm

world history
Where did farming first develop? F.Southwest Asia G.southeastern Europe H.India I.China I think it is g but not sure. Is that correct???
Sunday, September 28, 2014 at 6:28pm

English
How did the man-made environment Olaudah Equiano was forced into shaped his opinions and perspectives towards the first white men he encountered?
Sunday, September 28, 2014 at 5:13pm

math--check my answers?
Give an example of an open equation a + b = c + d How can you use an equation to make a prediction from a pattern? (i dont know) pizza costs $1.50 per slice. Use a table and an equation to represent the relationship between the number of slices of pizza bought and the total ...
Sunday, September 28, 2014 at 4:38pm

stat
Drawing a spade form a regular deck of playing cards and then drawing another spade from the same deck without replacing the first card is this a independent event?
Sunday, September 28, 2014 at 4:34pm

CALCULUS
I need to find the unit normal vector given: r(t)= ti + (6/t) j where t= 3 I know I need to find the unit tangent vector first, which is r'(t) divided by the magnitude of r'(t). r(t) can be rewritten as ti+ 6t^-1 r'(t) = i- 6t^-2 = i- [6/ (t^2)] j For the magnitude...
Sunday, September 28, 2014 at 4:21pm

trigo
Obtain an identity for the first function value in terms of the second function value. cos 3x ; cos x
Sunday, September 28, 2014 at 10:24am

PROGRAMMING
1. Make a C program that will input two integers and then to enter an option as follows: • 1 = to add the two integers. • 2 = to subtract the second integer from the first. • 3 = to multiply the integers • 4 = to divide the first integer by the second ...
Sunday, September 28, 2014 at 8:04am

PROGRAMMING
Make a C program that accepts an integer value at the main method from the keyboard and in turn passes the value to a function that squares the number( multiplies is by itself) and to another function that cubes the number ( multiplies by itself twice). The main method ...
Sunday, September 28, 2014 at 8:02am

IT
Make a C program that accepts an integer value at the main method from the keyboard and in turn passes the value to a function that squares the number( multiplies is by itself) and to another function that cubes the number ( multiplies by itself twice). The main method ...
Sunday, September 28, 2014 at 6:58am

social statistics
a smoking researcher is interested in estimating the average age when cigarette smokers first began to smoke. Taking a random sample of 25, she determines a sample mean of 16.8 years and a sample deviation of 1.5 years. Construct a 95% confidence interval to estimate the ...
Saturday, September 27, 2014 at 11:12pm

Physics
A car travels 120 meters in one direction in 20 seconds. Then the car returns ¾ of the way back in 10 seconds. a) Calculate the average speed of the car for the first part of the trip. b) Find the average velocity of the car.
Saturday, September 27, 2014 at 11:09pm

geometric sequence
The sum of the 2nd and 5th terms of a geometric sequence is 3.5. The sum of the 3rd and 6th is -7. Determine the ratio r of the sequence and the first term a.
Saturday, September 27, 2014 at 10:36pm

Statistics
X is a normally distributed random variable X with mean 15 and standard deviation 0.25. Find the values xL and xR of X that are symmetrically located with respect to the mean of X and satisfy P(xL < X < xR) = 0.80. (Hint. First solve the corresponding problem for Z.)
Saturday, September 27, 2014 at 6:58pm

CHEM
H2C=C-C-C-CH3 THERE IS AN H ATTACHED TO THE CARBON AFTER THE FIRST BONG THEN A H2 ON THE 2ND AND 3RD CARBON
Saturday, September 27, 2014 at 4:04pm

Psychology
A recent research study found that surfing the internet and accessing non-academic grades resulted in lowering students GPA. Dr. Rushmore studied the relationship between grades and non-academic surfing in a first-year introduction to psychology class. Approximately, 100 out ...
Saturday, September 27, 2014 at 4:02am

math
Find the sum of the first 60 terms of the arithmetic sequence whose first term is −15 and whose common difference is 7.
Saturday, September 27, 2014 at 12:24am

Microbiology
What methods would you use to sterilize and clean a lab coat contaminated with a broth culture of Vibrio cholerae so that the lab coat could be safely used again? a. Method of sterilization: b. Method of cleaning: c. Name which method would be implemented first:
Friday, September 26, 2014 at 10:10pm

law
Eagle Sales Company owns a warehouse, subject to a mortgage obtained from First National Bank. Separately, Eagle and First National obtain insurance policies from Good Hands Insurance, Inc., to cover the warehouse. Later, Eagle sells the property to Interstate Distribution ...
Friday, September 26, 2014 at 5:05pm

chemistry
Use the following values for the arrows in the drawing: a = 185 J of heat; b = 45 J of heat; c = 115 J of work; d = 40 J of work; e = 65 J of work; and f = 190 J of heat. Find the change in the internal energy of object A only. Use the First Law of Thermodynamics Be careful ...
Friday, September 26, 2014 at 5:02pm

math
Think of a 135 digit number formed by writing the first 72 natural number side by side in a string.(i.e.) 1 2 3………70 71 72. Find the remainder when it is divided by 12. a. 2 b. 9 c. 0 d. 5
Friday, September 26, 2014 at 11:15am

PHYSICS
an airplane and a helicopter leave an airport in montana at the same time.The aircrafts velocities:v=225mph@20 degree,and v=102mph@49 degree.If these velocities are maintained which craft will cross the borderinto canada first? or do they arrive at the same time. Try the ...
Friday, September 26, 2014 at 3:28am

chemistry
Calculate how many grams of the first reactant are necessary to completely react with 55.8g of the second reactant. Na2CO3 + CuCl2 → CuCO3 + 2 NaCl
Thursday, September 25, 2014 at 9:47pm

math
two students are playing a math game . the object of the game is to make the least possible number by arranging the given digits inside absolute value bars on a card . in the first round , each player will use the digits 3,5,and7 to fill in the card. One student arranges the ...
Thursday, September 25, 2014 at 9:20pm

Physics
A stone is tied to a string (length = 0.700 m) and whirled in a circle at the same constant speed in two different ways. First, the circle is horizontal and the string is nearly parallel to the ground. Next, the circle is vertical. In the vertical case the maximum tension in ...
Thursday, September 25, 2014 at 7:44pm

Algebra 1
In order to earn an A in a class, your test scores must average at least 92%. On the first 6 tests, you have an average of 91%. What score do you need to get on the last test to earn an A? Show your work.
Thursday, September 25, 2014 at 7:20pm

HISTORY
1. WHICH OF THE FOLLOWING DESCRIBES AN ACCOMPLISHMENT OF GEORGIA'S ROYAL GOVERNORS A. improved defense of the colony B. Increased land for settlement C. Organized the colony into parishes D. ALL OF THE ABOVE ** 2. WHICH OF THE FOLLOWING ISSUES IS NOT SOMETHING THAT WOULD ...
Thursday, September 25, 2014 at 3:15pm

English
Though it is a history essay, my question has to do with writing and essay. The following is what I submitted for an essay and was told it was good but it lacked an introduction and thesis. My first paragraph is what I thought was a sufficient introduction and thesis. Could ...
Thursday, September 25, 2014 at 12:53pm

MATH
How do i find the center of a circle using 3 points. Also need to find the radius and the equation of the circle.... My 3 points are (2,8) (-4,6) (1,-1) I found the Equation of the perpendicular bisector of the line between the first and second point which was y=(3/2)x + 5 And...
Thursday, September 25, 2014 at 11:07am

Please Help! Math
How to find the center and radius of a circle using 3 points... My 3 points are (2,8) (-4,6) (1,-1) I found the Equation of the perpendicular bisector of the line between the first and second point which was y=(3/2)x + 5 And the Equation of the perpendicular bisector of the ...
Thursday, September 25, 2014 at 1:52am

physics
Two stones one at equator and the other at poles are allowed to fall from same height and at same time.which one will strike the ground first?
Thursday, September 25, 2014 at 1:14am

Algebra Help
How do I find the center of a circle using the points (2,8) (-4,6) (1,-1) I also found the Equation of the perpendicular bisector of the line between the first and second point which was y=(3/2)x + 5 And the Equation of the perpendicular bisector of the line between the second...
Wednesday, September 24, 2014 at 9:59pm

Calculus
At what point does the normal to y=-5-1x+3x^2 at (1, -3 ) intersect the parabola a second time? Answer: Note: You should enter a cartesian coordinate. The normal line is perpendicular to the tangent line. If two lines are perpendicular their slopes are negative reciprocals -- ...
Wednesday, September 24, 2014 at 6:20pm

Diversity & world culture
I have to do an ethnographic study and its my first time. I have to do a naturalistic observation and evaluation paper. can you tell me how that is written or what it consist of? does it consist of title,intro,body,conclusion, and bibliography? Where does my observation notes ...
Wednesday, September 24, 2014 at 4:37pm

Examination Number
. Among instances of corporate malfeasance in the early twenty-first century, the _______ scandal was the most shocking and economically damaging for employees and shareholders
Wednesday, September 24, 2014 at 2:01pm

Physics
An object is launched at an angle of 24 degrees above the horizontal at a velocity of 33.7 m/s from the top of a building which is 110.8 meters above the ground. When the object lands on the ground, what is the horizontal displacement from the base of the building in meters? ...
Wednesday, September 24, 2014 at 11:54am

Physics
One object is thrown straight up at 54.9 m/s from the ground at the base of a building with is 157.9 meters tall. At the same time the object is thrown up at the bottom of the building, another object is thrown straight down at the top of the building. If both objects are to ...
Wednesday, September 24, 2014 at 10:28am

language arts
From reading “The Raven and the First Men: The Beginnings of the Haida,” the reader can tell that the Haida people value family due to the actions of A.the baby toward the daughter. B.the Sky Chief toward Raven. C.Raven toward the Sky Chief. D.the daughter toward the...
Wednesday, September 24, 2014 at 9:26am

Chm 203
On a size exclusion separation column (e.g. Sephadex) would you expect the longer or shorter chain length compound to be eluted first? Why? Explain? Thanx!
Wednesday, September 24, 2014 at 12:00am

Math
you complete 3 cm of a necklace in1 hour. Each hour after the first hour you triple the length of the necklace. What is the length of the necklace after 3 hours?
Tuesday, September 23, 2014 at 10:11pm

statistic research
ryan selects one card from a deck of 52 different card. the first card is not replaced before joe selects the second one. in how many different ways can they select the two card?
Tuesday, September 23, 2014 at 10:01pm

Meth
18. Jared wants to rent a car. They charge $39.95 per day plus miles. The first 100 miles are free, but the company charges $0.20 per mile after that. If Jared has $50, what is the range of number of miles he can drive if he rents the car for one day?
Tuesday, September 23, 2014 at 9:34pm

math
A telephone long-distance carrier charges customers $0.99 for the first 20 minutes and then $0.06 for each minute(or any part thereof) beyond 20 minutes. If Mary uses this carrier,how long can she talk for $4.00? I started off with 0.99x+20+0.06x=4.00. PLEASE help, I dont ...
Tuesday, September 23, 2014 at 7:24pm

Science
Why might scientists first want to build and study a model of their proposed project?
Tuesday, September 23, 2014 at 6:38pm

Calculus
A spacecraft is in an elliptical orbit around the earth. At the time t=0 hours, it is at its apogee (highest point), d=1000 km above the earth's surface. It is at its perigee (lowest point) d=100 km above the surface 50 minutes later. a. Assuming that d varies sinusoidally...
Tuesday, September 23, 2014 at 5:30pm

Math
The sine ratio is positive in the first and what other quadrant?
Tuesday, September 23, 2014 at 2:43pm

Grammar
1. Choose the answer that identifies the form of the verb in the sentence. Cindy is painting her room purple. present present participle past past participle Question 2. Choose the answer that identifies the tense of the verb in the sentence. Has the rain stopped yet? past ...
Tuesday, September 23, 2014 at 1:29pm

government
The purpose of the First Ten Amendments to the Constitution is to __________.
Tuesday, September 23, 2014 at 9:45am

Physics
A golfball comes to rest 1.9 seconds after hitting a net. The force of the net slowed down at a rate of 56.3 m/s2. What was the velocity of the ball when it first hit the net??
Tuesday, September 23, 2014 at 2:50am

Physics
Two friends, Barbara and Neil, are out rollerblading. With respect to the ground, Barbara is skating due south at a speed of 5.2 m/s. Neil is in front of her. With respect to the ground, Neil is skating due west at a speed of 3.2 m/s. Find Neil's velocity ((a) magnitude ...
Tuesday, September 23, 2014 at 2:21am

Math
Solve the given quadratic equation exactly using the quadratic formula. Write the solutions in its simplest form. Using a calculator, determine all irrational solutions to the nearest thousandth. Separate the solutions with a comma and list the smaller one first. For the ...
Tuesday, September 23, 2014 at 1:19am

Math
Solve the given quadratic equation exactly using the quadratic formula. Write the solutions in its simplest form. Using a calculator, determine all irrational solutions to the nearest thousandth. Separate the solutions with a comma and list the smaller one first. For the ...
Tuesday, September 23, 2014 at 1:01am

physics
Your opponent, in a desperate attempt to return your wicked serve, makes a high lob of the tennis ball that causes it to land out of bounds on the asphalt course behind you. It then bounces so that it just barely clears a 3.90 m wall that is 2.32 m from where the ball hit the ...
Monday, September 22, 2014 at 11:22pm

algebra
a 25 inch piece of a steel rod is cut into 3 pieces so that the length of the second piece is twice the length of the first piece.The third piece is 1 inch longer than 5 times the length of the first piece.What are the lengths of the pieces
Monday, September 22, 2014 at 5:59pm

business
. You've written a check to Goodwill Supply, and the check has been lost. What should you do? A. Stop payment on the first check; then write a second one. B. Send a counter check to Goodwill. C. Write another check immediately. D. Call Goodwill and tell them you'll ...
Monday, September 22, 2014 at 1:56pm

Language Arts
Why does the author of "The Drummer Boy of Shiloh" say it is a "solemn night for a boy just turned fourteen"? A. The wind is full of whispers B. The army is cramped near a church C. The boy will be in his first battle soon D. The boy does not like sleeping ...
Monday, September 22, 2014 at 1:53pm

Social Studies
In what year did the English establish Jamestown, their first permanent settlement? A. 1607 B. 1630 C. 1675 D. 1718 Is the answer A?
Monday, September 22, 2014 at 12:49pm

math
Four monkeys ann,bob, carl and don set of to gather bananas after collecting their bananas they tired and fell a sleep Ann woke up first and ate 1/3 bob ate 1/3 carl ate 1/3 and don ate 1/4 He left 12 bananas for his 3 friends how many banana did monkeys gather all?
Monday, September 22, 2014 at 10:42am

math
A student is attempting to factor a polynomial. Sample mathematical work is shown below. Which statement best applies to the sample mathematical work? Given 3x + 6, the factors of the first term are 3 and x, and the factors of the second term are 1, 2, 3, and 6. Thus, the ...
Monday, September 22, 2014 at 9:19am

180g/l
I want to make up a 180g/l solution acid using 98% Sulphuric Acid. How much H2SO4 do I use should I make a stock solution first.
Monday, September 22, 2014 at 1:46am

Math
A rectangular field is to be subdivided in 6 equal fields. There is 1200 feet of fencing available. Find the dimensions of the field that maximizes the total area. (List the longer side first) Width = feet Length = feet What is the maximum area ? Area =
Monday, September 22, 2014 at 12:50am

math
Benjamin and Bob are marathon runners on a run from landmarks P to Q. Benjamin runs half the way and walks the other half. Bob runs half the time, and walks the other half. The two run at the same speed and walk at the same speed. Who finishes first?
Monday, September 22, 2014 at 12:43am

Physics
In order to qualify for the finals in a racing event, a race car must achieve an average speed of 230 km/h on a track with a total length of 1810 m. If a particular car covers the first half of the track at an average speed of 245 km/h, what minimum average speed must it have ...
Monday, September 22, 2014 at 12:20am

physics
In order to qualify for the finals in a racing event, a race car must achieve an average speed of 276km/h on a track with a total length of 1520m. If a particular car covers the first half of the track at an average speed of 246km/h, what minimum average speed must it have in ...
Sunday, September 21, 2014 at 11:35pm

Physics
The two masses shown in the figure are each initially 1.80 m above the ground, and the massless frictionless pulley is fixed 4.8 m above the ground. (mA = 1.5 kg and mB = 3.4 kg.) What maximum height does the lighter object reach after the system is released? [Hint: First ...
Sunday, September 21, 2014 at 9:40pm

Math.
T -shirts for first prize winners in the games cost $23.40. This was $8.77 less than their cost one year ago. What was the cost of the T-shirts one year ago?
Sunday, September 21, 2014 at 3:36pm

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