Friday
February 24, 2017

Posts by michelle

Total # Posts: 1,950

physical science
A uniform stripe of eureka (resistivity 5-0 × ?10?^(-7) ?m) has a resistance of 0.80 ? per metre and is 0.25 cm wide. What is its thickness? (show work)
February 17, 2017

physical science
A block of carbon, 1.0 cm by 2.0 cm by 5.0 cm has a resistance of 0.80 ? between its two smaller faces. What is the resistivity of carbon? (show work)
February 17, 2017

physical science
. The maximum allowable resistance for an underwater cable is one hundredth of an ohm per metre. If the resistivity of cooper is 1.54 × ?10?^(-8) ? m, find the least diameter of a copper cable that could be used (show work)
February 17, 2017

physical science
What length of German silver wire, diameter 0.050 cm, is needed to make a 28 ?resistor, if the resistivity of German silver is 2.2 × ?10?^(-7) ? m (show work)
February 17, 2017

physical science
The resistance of the ohm is very approximately that of a column of mercury 1.06 m long and of uniform cross-section of one hundred of a cm^2. Find the resistivity of mercury.(show work)
February 17, 2017

physical science
Taking the resistivity of platinoid as 3.3 × ?10?^(-7) ? m, find the resistance of 7.0 of platinoid wire of average diameter 0.14 cm.
February 17, 2017

physical science
The heating elements of an electric toaster is typically made of nichrome wire (an alloy of nickel and chromium). As current passes through the wires, the wires heat up, thus toasting the toast. Estimate the overall resistance of a heating element which is 220 cm long and ...
February 17, 2017

pyhsical science
A wire of uniform cross-section has a resistance of R ?. What would be the resistance of a similar wire, made of the same material, but twice as long and of twice the diameter?
February 17, 2017

Algebra
can you help me graph the function y=-5(3^x)please? f(x)=-5(3^x) f(x)=-5*3 f(x)=-5(9) =-15 =-45 Is this the correct way to work this problem out and how to I graph?
February 17, 2017

Technical writing
Identify the subject and complete verb in each of the following sentences.
February 16, 2017

Technical writing
The teacher should have been more patient with her students. Select one: a. students; should have b. teacher: should have c. teacher; have been d. teacher; should have been D.
February 16, 2017

Technical writing
A
February 16, 2017

Technical writing
In order to have a complete sentence, you need a ________. Select one: a. subject, verb, and a complete thought b. subject and verb c. subject, verb, and a prepositional phrase d. subject, verb, and a dependent clause
February 16, 2017

Technical writing
C
February 16, 2017

Technical writing
Two independent clauses joined together with no punctuation create a ________. Select one: a. complex sentence b. compound sentence c. run-on d. comma splice
February 16, 2017

Chemistry
Given that the battery produces a current of 2.5A that passes through molten zinc chloride for 3 minutes what charge would be dissipated through the electrolyte
February 14, 2017

math
find the maximum and/or minimum values of the function f(x) for the indicated value of x f(x)=x^2 -4x+3 2<_ x _>5
February 12, 2017

Math 115
Calculate the slope and write an equation for the linear function represented by each of the given table. A W 5 30 7 40 W=_?___ I PUT W=5x+5 and W=5+5x BUT IT SAID IT WAS WRONG.
February 10, 2017

Math Velocity
Jeff is standing on a bridge 5M above the river, He picks up a small rock and tosses it into the air, the rock reaches a height of 12M in one second and hits the water in about 2.3 seconds Determine when the rock reaches a height equal to the bridge but on the way down.
February 8, 2017

Women should be treated as equals
Obviously we women are the pillars of the world without us the world wouldn't be able to function properly and it is said that behind every successful man is a powerful woman
January 26, 2017

Probability
The signers of the declaration of Independence came from the 13 colonies as shown: Massachusetts: 5 New Hampshire: 3 Virginia: 7 Maryland: 4 New Jersey: 5 Pennsylvania: 9 Rhode Island: 2 New York: 4 Georgia: 3 North Carolina: 3 South Carolina: 4 Connecticut: 4 Delaware: 3 ...
January 10, 2017

Pre Calculus
A flare is launched straight up with a velocity of 200 feet per second. The function h(t)= 200t?16t^2 models the height h(t)of the flare are at time t. How many seconds will it take for the flare to hit the ground?
December 5, 2016

Math
A book of golf balls contains yellow golf balls and white golf balls. You collect the representative sample shown (3 yellow, 2 white). If the bucket contains 50 golf balls about how many golf balls are white ?
November 29, 2016

science
What are the similarities and differences between mitosis and meiosis?
November 22, 2016

Grade 11 Physics
Harry, who has a mass of 54 kg, has just gotten a flybar pogo stick and is standing on top of a small wall. He pushes off the wall with a velocity of 1.7 m/s, gets on the stick and lands. The stick has a spring constant of 3.5 x 104 N/m and he compresses it by 20.0 cm when he ...
November 17, 2016

trigonometry
A ship sails 15.0 mi on a course S40°10’W and then 21.0 mi on a course N28°20’W. Find the distance and direction of the last position from the first.
November 13, 2016

Financial Accounting
On March 31 a post closing trial balance was completed On April 4, the business purchased a new truck on account. The residual value is $2400, and the estimated useful life is 5 years. How do I enter this information into a general journal? Do I even need to calculate the ...
October 26, 2016

Science
suppose a skydiver (mass = 75 kg) is falling toward the earth. when the skydiver is 100 m above the earth he is moving at 60 m/s. at this point calculate the skydiver's
October 22, 2016

math
Calculate the time the car takes to travel 605m what answer
October 22, 2016

math
A model car travels horizontally after being released. The car travels a distaance d metres in a time of t seconds. d is directly proportional to t. The car travels 20 metres in a time of 2 seconds. A.Calculate the distance the car travels in 3 seconds.
October 22, 2016

Social Studies
I think the answer is A
October 20, 2016

Chemistry
1.2
October 16, 2016

system development
how to write a pseudocode for a system that allows user to create an account with features such as username, password, email, first name, surname, postal address
October 2, 2016

physic
The brakes on a car permit it to decelerate at the rate of 0.80 m/s2. How much distance is required to stop this car when it is traveling at 60.0 km/hr?
September 25, 2016

Physics
An airplane, traveling 142.5 km/hr at the moment it touches the runway, runs off the end of the runway still traveling at 36.7 km/hr. If the plane’s rate of deceleration was -1.6 m/s2, how long and how far did the plane travel along the runway?
September 25, 2016

Physics
A deer runs into the road 1.24 km in front of a car. The driver, traveling at 70.5 km/hr, sees the deer and slams on the brakes which decelerates the car at a rate of 3.2 x 10-1 m/s2. Will the driver hit the deer?
September 25, 2016

math
mike reads thrice as fast as judy.the ratio of the number of words judy can read per minute to the number of words paul can read per minute is 5:2 if paul can read 140 words per minute,how many words per minute can mike read
September 13, 2016

math
John saved 8/5 of what Mary saved. Idf Mar saved P 390 lessthan what John saved, how much did both of them saved?
September 13, 2016

math
Martin had red toy cars and blue cars in a box. the ratio of the blue toy cars to the red toy cars is 5:2. When Martin put 15 more blue toy cars in the box, the ratio of the blue toy cars to the red toy cars became 4:1. How many red toy cars and blue toy cars are now in the box?
September 13, 2016

Math
81,000! Thank you so much.
August 13, 2016

Math
The scale drawing of a soccer field mis 1 inch= 10 yards. The drawing of a soccer field is 12 inches by 7.5 inches. Find the dimensions of the actual soccer field in square feet.
August 13, 2016

algebra
michelle inherited 5/8 of his father's estate. He sold 2/5 of his share. What part of the entire estate did he sell?
August 3, 2016

Math
how to solve this po? 4(4x)^2 + 2(4x) + 5 I hope you can answer this for me. and thank you very much. :)
July 29, 2016

Spanish
?Crees que en el futureo___viajar a otros planetas? !Claro que si!
July 18, 2016

Grammar
The cow jumped over the moon. subject: the cow verb: jumped over object: the moon is the right?
July 2, 2016

Reserach Statistics in CRJU
A data set has n=10 pairs of X and Y values. This data has SSx=10, SSy= 20 and SP=10. Compute the Pearson correlation and explain r=sp/√ssx ssy = 10/√10*20= 10/√200 Simplify 200 under radical= 200 as 10^2⋅2. √(〖10〗^2 )×2= 10/...
June 30, 2016

math
Hey are you able to email me I have a question for you please
June 28, 2016

Questions
Manny is there a way we can speak thur email I have a question about your post.
June 20, 2016

Child
Which one of the following activities is not directly connected with providing a safe and healthy environment?
June 16, 2016

Algebra
nicole is a jewellery designer. she handcrafts all the jewellery she sells online. with every successful sale, she would make a profit of $30; however, if she makes a mistake during the process, she will lose $10. Nicole is starting work on her next batch of 20 jewellery. ...
June 15, 2016

Math
If a missile is launched from a station 300 metres above sea level with an initial velocity of 500 m/s what is the height of the missile after 4 seconds
June 12, 2016

english
EDIT: You can't use non creative , but you can say uncreative
May 26, 2016

english
Yes, but it's better to use "unimaginative" instead of just adding "non" in front of a word to make it an antonym of the original word.
May 26, 2016

Math
A cross-section of a sphere, which is 6 units from the center of the sphere, has a circumference of 8π units. Find the surface area of the sphere.
May 26, 2016

Math
Find the number of vertices in a polyhedron if it contains 20 triangular faces and 12 pentagonal faces. a. 30 b. 32 c. 60 d. 120 * Also please show me how you got your answer, thanks
May 26, 2016

Math
The surface area of a right cone is 55π cm squared. Find the radius if the slant height is 6cm.
May 23, 2016

Math
how many electrones of each element are produced in this reaction? PbS +H2O -----PbSO4+H2O
May 19, 2016

math
this exponential equation has different base,but same exponent. 4^× -9(2^×)=-20 i know the 4 is just 2squared, but i am just a little confounded when taking it into practice ,plz help
May 18, 2016

Chemistry
How can I do an acrostic poem for the word REDOX?
May 2, 2016

Algebra
A campground consist of 10 square campsites arranged in a line along the beach the distance from the edge of the campsite to the water is 4 yards the area of the campground including the beach Is 1050 yd.² what's the width of one campsite
April 19, 2016

math
Suppose you have an extremely unfair coin: the probability of a head is 1/5, and the probability of a tail is 4/5. If you toss the coin 40 times, how many heads do you expect to see? A. 8 B. 6 C. 5 D. 4
April 12, 2016

statistics
Data has been collected from a representative of a well-defined population to answer the question: "How much money does the average senior male at Normal Community High School have in his pockets at the end of the school day on Friday?" The next step in the study is ...
March 28, 2016

chemestry
Calculate the number of moles of NH3 that can be formed from the complete reaction of 0.30 moles of N2 according to the equation N2 + 3H2 → 2NH3
March 24, 2016

Physics 101
A storage tank of negligible mass and 30m high is filled with gasoline. What is the force that acts on a square access hatch at the bottom of the tank that measures 0.5m x 0.5m
March 21, 2016

Chemistry
A chemist reacts 0.05 moles of solid sodium with water to make sodium hydroxide what mass of sodium was reacted ?
March 19, 2016

Language Art's HELP ASAP!
xD I WAS JUST READING THE COMMENTS XD LOL
March 14, 2016

Grade 8 Art
Thanx Anonymous.
February 24, 2016

math
what is P(78.3 < x bar < 85.1)?
February 20, 2016

chemistry
I need help in the formula to calculate these types of problems 125ml of 0.43M of HCl + 17ml of 1.8M HCl Calculate the concentrations of solutions resulting from the mixture
February 5, 2016

The Oregon Country Unit 2 Lesson 4
GG perfect scores
February 4, 2016

Chemistry
A Se-75 source is producing 310 rem at a distance of 3.0 m. What is the distance needed to decrease the intensity of exposure to below 25 rem, the level at which no effects would be detectable.
February 1, 2016

algebra
what is the value of j in the equation square root of j plus the square root of j plus equals 3 the square root of j plus 10?
January 24, 2016

Chemistry 105
How do I write 23 grams+ 0.022 grams into a significant figure?
January 20, 2016

Math
Would it be true if you doubled it?
January 10, 2016

Math
A recipe calls for 3/4 cup flour and 2/3 cup butter. Does the recipe require more flour or butter? Is this still true if the recipe is doubled? Explain how you determined your answer.
January 10, 2016

Math
Tom has green and red tomatoes in a bag a 4 to 3 ratio 5 green tomatoes and 5 red tomatoes were removed making the ratio become 3 to 2 how many red tomatoes were originally in the bag Please show me how to work the problem
January 5, 2016

math
write a problem about going to the laundromat that has a hidden question. a single load of laundry costs $2 and a double load costs $4.explain how you solved your problem.
December 16, 2015

Chem 1211
Calculate the wavelength (in nm) of a photon needed to eject an electron with a kinetic energy of 3.93 eV from a metal surface with a work function of Φ = 0.60 eV. {h = 4.136×10-15 ev·s, c = 2.998×1017 nm/s}
November 29, 2015

science - matter
at what temperature will 45g of solid dissolve
November 23, 2015

math
Their are 12 crayons - 1 =9
November 19, 2015

Language Arts
What is the main theme of the story the bachelor tells in "The Story-Teller"? Good children win many medals Parks are beautiful places Too much goodness can be bad *** Good people do something bad eventually
November 18, 2015

Language Arts
In "The Story-Teller," what can you infer about the bachelor from the answers he gives when the children interrupt his story with questions? He is impatient He does not understand what others say He does not know what children like He has a good imagination ***
November 18, 2015

Math
A pole that is 3.2m tall casts a shadow that is 1.4m long. At the same time, a nearby tower casts a shadow that is 39.5m long. How tall is the tower? Round your answer to the nearest meter.
November 14, 2015

Health
My answer is Reproductive Gland
November 13, 2015

Health
When you wake up and a large pimple greets you when you look into the mirror, this endocrine gland is to blame Thymus Gland Reproductive Gland Thyroid Gland Pancreas
November 13, 2015

Health
During puberty, you may find yourself on a roller coaster, one minute you feel like crying and the next minute you are on top of the world. This could signify that you’re suffering from a hormonal imbalance. *** hormonal surge. hormonal shortage. hormonal discrepancy
November 13, 2015

Calculus
Squares with sides of length x are cut out of each corner of a rectangular piece of cardboard measuring 3 ft by 4 ft. The resulting piece of cardboard is then folded into a box without a lid. Find the volume of the largest box that can be formed in this way. b) Suppose that in...
November 5, 2015

Physics
A mass m = 85 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 19.2 m and finally a flat straight section at the same height as the center of the loop (19.2 m off the ground). Since the mass would not make it around the loop if ...
October 31, 2015

BioChem
Given stocks of 1M lactic Acid (pka 3.86) at pH 3.5, 2 M NaOH, 2M HCl and water; how would you prepare 4 Liters of 0.05M lactic acid at pH 3.25. I know you use the Hendersen-Hasselbeck eqn, just not sure how to start. Please help.
October 29, 2015

Math
Golds gym charges $150 to sign up and $10 per month. Fitness express charges not initial fee but charges $25 per month. When will the cost be the same? Show work please!!
October 27, 2015

ap chem
if 3.2 kcal of heat is added to 1kg of ice at 0 celcius, how much ice is produced and how much ice is left?
October 21, 2015

Intermediate Algebra for College
Imagine that you are looking to rent a car that costs $15 a day, and you will be charged an additional 25 cents for every mile you drive it during the day. The following formula can be used to calculate the cost for driving the car for a day: C = 0.25m + 15 If you were to ...
October 15, 2015

math
Find the absolute maximum and the absolute minimum value, if any of: f(x)= (-1x^2/8)+4x+3 on the interval (0,9)
October 12, 2015

Math
Find the absolute maximum and the absolute minimum value, if any of: f(x)= -1x^2/8+4x+3 on the interval (0,9)
October 12, 2015

Calculus
The altitude attained by a model rocket t seconds into flight is given by the equation: -t^3+3t^2+20t-3 where t is greater than or equal to 0 seconds. find the maximum altitude attained by the rocket. first I found the derivative of the original equation and set it to 0. which...
October 12, 2015

chemistry
A ground state hydrogen atom absorbs a photon of light having a wavelength of 93.73 nm. It then gives off a photon having a wavelength of 1094 nm. What is the final state of the hydrogen atom?
October 11, 2015

Stats
About 10% of the population of a large country is math phobic. If two people are randomly selected what is the probability both are math phobic? And hat is the probability that at least one is math phobic? Any way to do this on stat crunch?
October 11, 2015

Math
Monica Collects quarters, dimes, nickels and pennies. This afternoon she took $ 1.00 from her collection. She counted the coins and found that she had twice as many nickels as dimes. What coins could Monica have?
October 1, 2015

Social Studies
Idk jelp
October 1, 2015

Social Studies
Name three factors factors that combine to make the eastern usa a industrial region
October 1, 2015

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