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Posts by Alice

Total # Posts: 727

Physics
A railroad freight car with a mass of 50,000 kg is rolling along a level track at 0.30 m/s. A rope trails behind it. If the maximum force you could apply to stop the cart is 250 N, what is the shortest amount of time (measured in seconds) it would take for you to bring it to ...

chemistry
If the titre value of the experiment were 20.50, 22.45, 22.6, typical experiment in a laboratory, 4.50g of sulphuric acid in 250cm^3 of water was titrated with an impure solution of 5.24g of sodium hydroxide contained in 1dm^3.

English
Word bank Coerco Intervene I. 1) I looked forward to this arrival with __. (n) 2.) Take raincoats if you __ bad weather. (v) 3.) They used ___ to get answers. (n) II. 1.) Hire some more people to ___ the work. (v) 2.) Can be done ___ if we had more workers. (adv)

Medical
True or False There's no cure for ALS

sfx
The dependent variable is the same amount of lime water, the independent variable is the colour changer of the lime water. The variable is the mouthpieces used

Urgent math pls
The noise from a power mower was measured at 108 dB. The noise level at a rock concert was measured at 119 dB. Find the ratio of the intensity of the rock music to that of the power mower. (Round your answer to the nearest whole number.) I tried by 108-119 =-11 but then I did ...

Urgent math quick
A roasted turkey is taken from an oven when its temperature has reached 185°F and is placed on a table in a room where the temperature is 75°F. (a) If the temperature of the turkey is 150°F after half an hour, what is its temperature after 45 min? (Round your ...

please help urgent
Find the total amount to be paid over the life of the 30-year mortgage and on the 15-year mortgage. 30-year $ 15-year I also tried doing the same method this way but it didn't work? can you show me how?

please help urgent
I got 2823.82 is this correct?

Math
an = 3a(n − 1) + 6 and a1 = 1 a4=87 a5=249 this is what I got but the answer were incorrect in the sequence.

Math
so I was trying to do this based on logarithm scales. The noise from a power mower was measured at 108 dB. The noise level at a rock concert was measured at 119 dB. Find the ratio of the intensity of the rock music to that of the power mower. (Round your answer to the nearest ...

Math
so just to clarify the answer is 37.313 or 9.3? if i was to round to two decimal places

Math
Can anybody show me step by step pls? A man invests $3000 in an account that pays 7.5% interest per year, compounded quarterly. 1. Find the amount after 3 years? (Round your answer to the nearest cent.) how much $? 2. How long will it take for the investment to double? (Round ...

physics
How many grams of Al2O3 are formed from 15L of O2 at 97.5kPa and at 21degree celcius.

physics
A gas at 250K and 15atm has a molar volume smaller than calculated from perfect gas law Calculate: a) the compression factor under these conditions b) the molar volume of gas

Maths Lit, Accounting, Economics, Business Studies
yes you can

History
Which view of the Establishment Clause would allow greater interplay between government and religion? A. conscientious theory B.accommodationist view C.separationist view D.high-wall theory can any body help me i think its A. conscientious theory but not sure at all.

Trigonometry
Two ships leave a harbor entrance at the same time. The first ship is traveling at a constant 10 miles per hour, while the second is traveling at a constant 22 miles per hour. If the angle between their courses is 100°, how far apart are they after 2 hours? (Round your ...

History
Who was primarily responsible for drafting the Bill of Rights? A.Thomas Jefferson B. Thomas Paine C.James Madison D.Benjamin Franklin

History
The right to a fair trial in federal cases stems from what constitutional source? A. The Sixth Amendment Speedy Trial Clause B.The Fifth Amendment Just Hearing Clause C. The Fourth Amendment Speedy Trial Clause D. The Fifth Amendment Due Process Clause i am struck

health
what can a person do to relax his muscles?

Calculus(math)
Is there a way to do this without taking the integral of the equation which is what I believe you did? I'm just beginning integral calculus so we are still doing more basic methods.

Calculus(math)
A particle is moving on a straight line in such a way that its velocity v is given by v(t)=2t+1 for 0≤t≤5 where t is measured in seconds and v in meters per second. What is the total distance traveled (in meters) by the particle between times t=0 seconds and t=5 ...

ELA
Oh he doesn't but he does want it to be true

Language Arts
ALGERNON Bring me that cigarette case Mr. Worthing left in the smoking-room the last time he dined here. LANE Yes, sir. [LANE goes out.] JACK Do you mean to say you have had my cigarette case all this time? I wish to goodness you had let me know. I have been writing frantic ...

Language Arts
The Passage is "The Trouble of Being Earnest" Which statement best expresses a theme of the passage? Some secrets are better left as secrets. Rules change depending on the situation. Marriage changes a person. Nothing is as it seems. I'm stuck between C and D Help?

Language Arts
Did you end up getting the answer?

math
if you know the area of a square how do you find the length of the square?

Physics
A rectangular wire loop has a 10 ohm resistor on the back as it moves into a region of uniform B=3T field at v=10m/s. The rectangle is w=5cm wide and l=20cm long. How much heat is generated in the resistor during the loop's entire path into and out of the magnetic field in...

math
what is the linear velocity of a point in Sydney, Australia which is at latitude 33deg 55'S. Radius of earth is 6370km.

math
One angle is 10 degrees more than 4 times the other. Find the measure of each angle if a) they are complimentary, and b) they are supplementary

psychology
analyse the tenants of psycholanalsis

Physics
A force of 112 N acts on 35 kg box which moves at a steady speed across the floor. The force is directed 40 degrees above the ground. How to state Newton's second law using x components and y components? x: -Fa(cos40) -Ff=ma and y: -Fa(sin40)+Fn-Fg=0? How do you calculate ...

Math
Thank you Ms. Sue to my question on the coin collection. I just haven't figure out when to divide and when to multiply with these word problems this past week. So my answer will be 2/3 times 13/25 = 26/75 Thank you and have a nice evening.

Math
Of the coins in my collection, 13/25 are quarters. Of these quarters 2/3 are state quarters. What fraction of my coins are state quarters? I think I need to divide 13/25 by 2/3 and my answer will be 39/50. Is this correct. Thank you for your help.

Math
Jan has 1/3 hour to warm up for her dance recital. She must complete each of 6 different stretches. How long, in hours, does she spend on each type of stretch if she spends an equal amount of time on each type of stretch? I think it would be 1/3 divided by 6 for an answer of 1...

math
12/35 stamps are from Asia. Of these Asian stamps 5/16 are from Thailand. What fraction of the stamp collection are from Thailand? I want to think I need to divide but I'm not sure it makes sense. 12/35 divided by 5/16= 12/35 times 16/5 = my answer of 192/175. Is this ...

Math
Dear Ms. Sue, Thank you for helping me very much. I was a little confused on your response to your answer posted at 7:23. Would my answer be 18 instead of 12? Thank you!

Math
using a circle graph of 1/3 percussion, 2/5 brass, 4/15 woodwind and also a circle graph of 1/3 woodwind, 1/6 percussion, 1/2 brass. Both bands combine as one band. A. What fraction of the band members will play brass instruments? B. what fraction of band members will play a ...

Math
using a circle graph with 1/3 percussion, 2/5 brass, 4/15 woodwind. There are 30 musicians in the band. How many of them play bass instruments? I think I have to multiply 30 times 2/5 and in simplest form my answer would be 12. Is this correct?

Math
working with a circle graph divided up into 1/3 woodwind, 1/6 percussion, and 1/2 brass. The marching band has three percussion musicians. How many musicians altogether are in the band? I think I have to add all of the fractions together and my answer is in simplest form so it...

Math
Sara long jump was 10 feet. That is 5/6 foot longer than Tom's long jump. Did Tom jump more or less than 10 feet? I think I have to multiply and so Tom's jump was less by . I think his jump was 8 1/2 feet. Is tis correct?

Math
Bill plays ball for 9 hours each week. His friend Mark spends as much time playing ball. Who plays more ball? I think I have to divide. So I think Mark plays more ball by 10 4/5 hours. Is this correct? Thank you so very much for your help Ms. Sue.

Math
Hank's fish bowl holds 9/10 gallon of water. It is now 2/3 full. How much water is in the bowl? I subtracted and my answer is 7/30. Is this correct?

Math
I can throw a ball 10 1/3 yards. My cousin can throw a ball 13 1/12 yards. How much farther can my cousin throw the ball? I think I have to subtract and my answer is 2 3/4 yards farther. Is this correct?

Math
Amy uses 8 cups of flour to make 3 identical loaves of bread.How much flour is in each loaf? I think it is division and I got 2 2/3 cups of flour. Is this correct?

Math
Sue's kitten eats 1/12 pound of food everyday. If Sue buys food in 5 pound bags, how many days does one bag of food last? I think I would divide and the answer would be 60 days is this correct?

Math
Bill can ride his bike 7 1/2 miles in a hour. a. How far will he ride in 3 hours? b. How far will he ride in 1/3 of an hour? I think for a. the answer is multiply so it would be 22 1/2 miles and for b. it would be 2 1/2 miles. Is this correct?

math
Mark is running 5 kilos. He decides to break the run into 3 equal lengths. How long will each length be? I think it would be 5 divided by 3 and my answer would be 1 2/3 for each length. Is this correct?

math
Thank you Ms Sue for your help. I meant to type dime instead of lime. So it should of been 192 dimes. That would make more sense.

Math
Tony wants to study 5 hours for the reading test. If he reads 1/3 hour per night, how many nights will he have to study? I think it is 5 divided by 1/3 so is it 15 nights that he would study?

math
a rectangle has a area 3 square feet and width 1/2 foot. What is the length of the rectangle? I think it is 3 times 1/2 equals 1 1/2 feet. Is this correct?

math
a rectangle has length 3 feet and width 1/4 foot. What is the area of the rectangle? I think it is 3 x 4 equals 12 feet. Is this correct?

Math
Bill has 180 coins. Of these coins, 1/12 are dimes. About how many dimes does he have? I think I have to divide . 180 divided by 1/12 equals 15 dimes that he has. Is this correct?

math
a lime weighs 1/12 ounce. Sue has 1 pound of limes. About how many limes does she have. I think I have to multiply 16 times 1/12 and I got 192 limes. Is this correct?

Electricity and magnetism
Thank you for your help. I am not sure what you mean by k.

Electricity and magnetism
A carbon atom's nucleus and its electrons become separated by 20nm. How much work does it take to separate them in Joules? In the previous problem if found that the magnitude of the force the nucleus feels towards the electrons is 2.07*10^11N. My first attempt was W=F*d = ...

PHYSICS Electricity
Maurice, I am having trouble too.

Social Studies
just to let you know i don't want the straight answer just an explanation

Social Studies
I am having trouble under standing these questions can someone please help? 11. What resources led to the appearance of the Industrial Revolution in New England? (5 points) 12. During the early 1800s, the United States tried to make peace with other countries in order to grow ...

Chemistry
What happens when sulphur reacts with iron? Does it make any colours before it turns dark grey? Does it do anything significant that I should need to know? I know that it is an exothermic reaction but is that it? Please help, Thanks.

chemistry
A moon rock collected by a U.S. Apollo mission is estimated to be 4.50 billion years old by uranium/lead dating. Assuming that the rock did not contain any lead when it was formed, what is the current mass of 206Pb per 1.150 g of 238U in the rock? The half-life of 238U is t1/2...

Chemistry
The average concentration of chloride ions (molar mass = 34.353) in seawater is 19.353 grams per kilogram. The maximum allowable concentration of chloride ion in drinking water is 250 ppm by mass. How many times as much chloride ion is there in seawater than the maximum amount...

Math
The container is coated with 2 layers of specialty paint that costs $6.05 per jar. Each jar of paint covers 800cm^2. How much does the paint cost?

Intermediate algebra
I need to simplify this rational expression and show the steps, please help.

Math
Find the value of csc theta for angle theta in standard position if the point at (5,-2) lies on its terminal side.

math
Graph f(x)=|x|^3

English
What genres, subjects, themes, settings, and characters has Mark Twain developed

Math
1) A car is traveling at a rate of 70 miles per hour. what is this speed in feet per minute. 2) Nina can braid 28 inches of rope in 1 hour. What is her speed in feet per hour? I am studying but I don't understand these questions. I have test tomorrow. Thank you.

Math
thank you very much

Math
thank you. please can you tell me how do you get 14 and 6 please. I want to understand. Thank you

Math
The price of a gallon of gasoline increased by 5 cents one week, decreased by 3 cents each of the next two weeks, and increased by 9 cents the fourth week. Find the average change in the price of gasolina for the 4 weeks.

English
Thank you!

English
Hi, I was wondering if this sentence has a comma splice? Before they get cold, grab that fluffy and heated towel, and dry them. Thanks in advance!

Algebra 2
what is an equation for the vertical translation of y=2x-1: 3/5 units up f) y=2x-2/5 g) y=2x-1/5 h) y=2x-8/5 I) y=2x+1/5

Algebra 2
what is an equation for each vertical translation of y=2x-1: 3/5 units up f) y=2x-2/5 g) y=2x-1/5 h) y=2x-8/5 I) y=2x+1/5

Algebra 2
how did you get 630km

Algebra 2
at 2 pm a freight train leaves a station and travels at 42 km/h. at 11pm and express train leaves the same station on a parallel track and travels at 105 km/h in the same direction. how far from the station will they meet?

geometry
in the proportion 2/8=8/32, which numbers is the geometric mean of the other two numbers?

Physics
A 0.2kg ball is attached to a rope and is whirled in a horizontal circle. Calculate the maximum speed of the ball if the length of the rope is 0.8m and its breaking strength is 0.9N

Physics
A wheel with radius of 25cm turning at 120 rpm uniformly increases its frequency to 660 rpm in 9s. Determine: i) the centripetal acceleration ii)the total acceleration of the system

science
calculate the mass of Cuso4.5H2O required to prepare 500 cm3 of a 0.400 m/dm-3 solution

chemistry
46,318.97

chemistry
calculate the mass of Cuso4.5H2O required to prepare 500 cm3 of a 0.400 m/dm-3 solution

Product MGT
At the grocery store, you buy a pack of 18 eggs and decide that when you get down to only 6 eggs you will buy another 18. In this scenario, what is your re order point? In this situation, what is your order quantity ?

math
Solve the equation z^2 + 2j = 0 Then convert solutions to Cartesian form.

Science
Which element would be most reactive? a. Al b. Cl c. P d. Na I initially thought that the answer was B, but I'm not sure about it. My second question is... Which non-metal is most reactive? a. Cl b. F c. I d. S I'm not sure about the answer for this one since all of ...

math
if f(x)=1-3x and g(x)=x^2-1, find : f(g(x))

math
if f(x)=1-3x and g(x)=x^2-1, find : g(g(x)), and g(f(x))

math
solve the equation 5coshx + 3sinhx = 4

science
Describe an experiment you might perform to determine which leg muscles of a frog are important for jumping long distances.

Math
Solve the inequality 4 ≤ 2c +7 ≤ 21

Math
Solve the inequality 4 ≤ 2c +7 ≤ 21

math
alice builds a model house she uses a scale of 1:20 the height of the real house is 10 meters. (i) what is the height of the model. the width of the model is 80cm (ii) what is the height of the real house

Math
Leah is buying curtains for her bedroom window. She wants the curtains to hang from the top of the window to the floor. The window is 4 feet high. The bottom of the window is 2 1/2 feet above the floor. What curtain length should Leah buy? a) 72 inches b) 78 inches c) 84 ...

science
liquid alcohol will change to vapor when its temperature reaches the A. boiling point B. fusing point C. freezing point D. melting point

science
a silver bar 0.125 meter long is subjected to a temperature change from 2oo degrees celsius to 100 degrees Celsius what will the length of the bar be after the temperature change

science
If the absolute temperature of gas is 600K, the temperature in degrees celsius is A.273 b.705c

literature
The story of The Wolf use.by Chief Pontiac is an example of A. a simile B. a myth c. personification

literature
When does the narrative of sojourner truth take place

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