Tuesday

July 22, 2014

July 22, 2014

Total # Posts: 112

**science**

Update ==> theta (t) = (1.20rad/s)t + (8.70rad/s^2)t^2

**science **

A uniform disk with radius 0.320m and mass 28.0kg rotates in a horizontal plane on a frictionless vertical axle that passes through the center of the disk. The angle through which the disk has turned varies with time according to è(t)= (1.20rad/s)t + (8.70rad/s^2)t^2 my...

**physics**

A body is projected vertically upwards with a speed of 40 m/s.Find the distance travelled by body in last second of upward journey?(g=9.8m/s2 neglect effect of air resistance)

**Chemistry 104**

The voltage generated by the zinc concentration cell described by, Zn(s)|Zn2 (aq, 0.100 M)||Zn2 (aq, ? M)|Zn(s) is 11.0 mV at 25 °C. Calculate the concentration of the Zn2 (aq) ion at the cathode.

**Chemistry 104**

I am doing something wrong I keep getting the wrong answer

**Chemistry 104**

A current of 3.40 A is passed through a Ni(NO3)2 solution for 1.80 hours. How much nickel is plated out of the solution?

**Algebra **

x -1 -1 -2 -2 y 0 -1 2 3Part A: Does the table represent a relation that is a function? Justify your answer by using the values shown in the table. (4 points) Part B: The function f(h) shown below represents the number of tennis matches Diana won each month when she practiced ...

**statistics**

A neuropsychologist is interested only in studying the most deviant portion of this population, that is, those individuals who fall within the top 10% and the bottom 10% of the distribution. She must determine the ages that mark these boundaries. What are these ages?

**chemistry**

Draw the compound that would produce 4-ethyl-3-hexanol in the presence of a nickel catalyst and hydrogen.Please help!!!!!

**chemistry**

Draw the compound that would produce 4-ethyl-3-hexanol in the presence of a nickel catalyst and hydrogen.Please help!!!!!

**chemistry**

Draw the compound that would produce 4-ethyl-3-hexanol in the presence of a nickel catalyst and hydrogen.Plaese help!!!!!

**chemistry**

Draw the compound that would produce 4-ethyl-3-hexanol in the presence of a nickel catalyst and hydrogen.

**chemistry**

If the thyroid test requires 3.2mCi in an "atomic cocktail," how many milliliters are used to prepare the iodine-131 solution?

**chemistry**

How would you prepare 2.25L of a 3.00M solution from a 15.0M stock solution?

**chemistry**

Each of the following is placed in a dialyzing bag and the bag is then immersed in distilled water. Which substances will be found outside the bag? Check all that apply. NaCl solution albumin solution starch solution

**chemistry**

Consider a mixture of , albumin solution, and starch solutions in a dialyzing bag. The dialyzing bag is then immersed in distilled water. Which of the following actions should be taken to remove the most salt from the mixture? Leave the dialyzing bag in the distilled water for...

**chemistry**

How did you get 52/3??

**Geometry-8th gr**

Thanks!

**Geometry-8th gr**

The Circumference of a circle is equal to the area of the circle. Find the radius. Thanks.

**Geometry-8th gr**

Thanks.

**Geometry-8th gr**

Find KN and LM. In triangle LKM, angle L is bisected. Line segment LK is 11, line segment KN is x-4, line segment NM is 5.4, and line segment LM is 2x + 1.3 (there is a drawing of this triangle) Thanks.

**Geometry-8th gr**

Thanks.

**Geometry-8th gr**

The perimeter of triangle ABC is 120. LIne segment BD bisects <B. Line segment AD= 15, and line segment DC= 21. FInd AB and BC. Thanks.

**Geometry -8th gr**

Okay, I get it now:)...thanks.

**Geometry -8th gr**

Given: triangle ABC ~ triangle PQR, m<A = 75 degrees, m<P = (5x + 7y) degrees, m<R = (3x + 4y) degrees, and m<B =( 2x + 9y) degrees. FInd m<R. Thanks

**Geometry-8th gr**

Can you please help me solve this question? Express the ratio x^2 + 4x -12/ x^2 - 4 in simplest form. Thanks.

**Geometry-8th gr**

Thanks!

**Geometry-8th gr**

Can you please help me with this question? 1.) Given: triangle ABC ~ triangle XYZ, m<A= 50 degrees, m<X= (2x +5y) degrees, m>Z=( 55 + y) degrees, and that m<B=(102-x) degrees. Find m<Z. Thanks.

**Geometry-8th gr**

Oh okay...thanks.

**Geometry-8th gr**

Thanks. So the geometric mean for 16 and 9 is 4/3?

**Geometry-8th gr**

The geometric mean x of two numbers is the positive value of x that satisfies the proportion a/x =x/b, where a and b are given. Find the geometric mean of 16 and 9.

**Geometry-8th gr**

Thanks.

**Geometry-8th gr**

IF 3a =2b and 4b=9c, find the ratio of a to c in simplest form and show steps.

**Economics**

Suppose the bottle water industry is competitive. If a bottle of water supplied by the typical firm has an ATC of 20 cents and the market price if 30 cents, is the bottle water industry in long run equilibrium?

**math **

Mary and Peter had a total of Rs 480.After Peter spent Rs 20, he had 3 times as much as Mary.How much did Mary have?

**geometry**

Lp=2x om=4x+30 and pm=50

**Programming in Python**

A customer in a store is purchasing five items. Design a program in python that asks for the price of each item, and then displays the subtotal of the sale, the amount of the sales tax , and the total. Assume the sales tax is 6 percent.

**physics**

what is sqrt(110^2+45^2) 118.849 at an angle of arctan45/110 E of N ^^^ what's that for?

**physics**

An RV travels 45 km east and stays the night at a KOA. The next day it travels for 3 hours to the north, traveling 110 km. What is the displacement over the two days for the RV? Please help, thank you!

**physics**

1. If m1= 3kg and m2= 2kg then find acceleration and tension action on the system. 2. A batsman deflects a ball by an angle 45 degree without changing its initial speed which is equal to 54km/hr.What is the impulse imparted to the bal.(mass of the ball is .15kg)

**science (physics)**

A chairlift carries skiers to the top of a ski hill. If the chairlift does 180 kJ of work in 15s, what is the power of the chairlift?

**science**

During the shot put competition at a track and field meet, a shot putter transfers 245J of energy to a 7200g steel ball he is throwing. What is the velocity of the ball?

**science**

Draw a free body diagram to show the relationship of forces on a 200 kg boulder resting on a 15degree incline. Include the magnitude of the force applied by an aadvark as it holds the boulder in place.

**Math**

Determine a relationship between the x- and y- values in the equation {(0,1), (1,0), (2, -1), (3, -2)}. Write an equation......y=?

**physics**

A roller coaster reaches the top of the steepest hill with a speed of 3.0 . It then descends the hill, which is at an average angle of 36 and is 50.0 long. Estimate its speed when it reaches the bottom. Assume friction coefficint Mk=0.18.

**Math**

If someone paid $95 for ten tickets to a concert. Adult tickets cost $15 each. Kids tickets cost $8 each. How many of each kind of tickets did they buy?

**social studies**

If you had to move to a Northern European country, how would you decide which country you would move to?

**social studies**

How is the physical geography of northern Europe connected to the economies of northern Europe?

**confidentiallity in allied health**

when should the computer bureau destroys or erases records,should the erasure be verified by the bureau to the physician?

**Language Arts**

Whats wrong with this sentences. Able to easily alter her appearance by changing her way of moving and her facial expressions, Tubman often hid in plain sight.

**Algebra**

solve the amount of money (in cents) of x quarters and (x+6) dimes the value of a quarter is 25 cents and a value of a dime is 10 cents

**ALGEBRA- MATH**

Avery paid $168 for a cell phone. What was the original price of the phone if he got it at a 30% discount?

**math**

one freezercan hold 100 frozen yougurt bars .how many frozen yougurt bars are in.10 freezers?60 freezers?3 freezers?100 frteezers?

**disease**

thank you guys,,

**disease**

thank you for your effort. i appreciate it but i am looking for a particular asnwer as it keep linking back to diabetes. Thank you

**disease**

what is the relation between high Blood glucose level (not Diabetes) and Urinary tract infection.

**Math**

The perimeter of a rectangle is 46m. If the width were doubled and the length were increased by 12m, the perimeter would be 82m. What are the length and width of the rectangle?

**english macbeth**

thanks but i've opened it already so if you have any other websites i would appreciate it

**english macbeth**

i really nedd to know what i'm suppose to write in macbeth's theme superstition? i know that it's about the witches and their prophecies and apparitions and about banquo's ghost but what should i emphasize on??

**epidemiology**

A new screening test for a disease is developed for use in the general population. The sensitivity and specificity of the new test are 60% and 70%, respectively. Four hundred (400) people are screened at a clinic during the first year the new test is implemented. (Assume the t...

**epidemiology**

A new screening test for a disease is developed for use in the general population. The sensitivity and specificity of the new test are 60% and 70%, respectively. Four hundred (400) people are screened at a clinic during the first year the new test is implemented. (Assume the t...

**statistics**

Suppose a random sample of 36 is selected from a population with a standard deviation of 12. If the sample mean is 98, the 99% confidence interval to estimate the population mean is

**English**

Please help me to jumble this word: UIDNVSEH and it should b a loving word.

**Math**

if x = 10 what is 3x² - x + 14 ?

**math**

Two of these statements are false. Identify them. 1.4x12>3x15 2.96/2<96/3 3.28+82>31+13 Answers: 1. 48>45 2. 48<32 3. 110>44 48<32 false What is the other one?

**Math**

1. 48>45 2. 48<32 3. 110>44 48<32 false what is the other one

**Math**

Two of these statements are false. Identify them. 1.4x12>3x15 2.96/2<96/3 3.28+82>31+13

**algebra**

you are correct

**chemistry**

How many grams of sodium chloride are needed to prepare 250 mL of a 2% solution?

**math**

Find the area of each circle and round to the nearest tenth. radius= 3 and two thirds

**math**

Find the distance around and the area of each figure. Round to the nearest tenth. quarter circle: 5 inches

**math**

Area of a trampoline is 201.1 square feet. The safety padding around the jumping surface is 1 foot wide. What is the area of the jumping surface?

**Algebra 1**

Two side triangle have the same lenght. The third side measures 5 m less than twice the common lenght. The perimeter of the triange is 23 m. What are the lenghts of the three sides?

**statistics**

A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was weighed on a very accurate scale. The results in grams were 3.087 3.131 3.241 3.241 3.270 3.353 3.400 3.411 3.437 3.477 Click here for the Excel Data File (a) Construct a 90% confidence interval...

**Calculus**

Oil spills out of a tanker at rate of 50ft3 per minute. The oil spreads in a 3 circle with thickness of 1 ft. Determine the rate at which the radius of the oil is increasing 48 when the radius reaches 200 ft.

**Statistics**

A party host gives a door prize to one guest chosen at random. There are 48 men and 42 women at the party. What is the probability that the prize goes to a woman? Round your answer to 3 decimal places. Answer

**englis 3**

my garden is full of water, because of yesterday"s rain.

**number patterns**

30*5=6 30*10=3

**number patterns**

mrs brander has 30 tomato plants .she wants to plant the same number of plants in each row of her garden.explain how she could decide the number of rows to plant

**number patterns**

joshua is raising fruit flies for a science project.at the begining of the first day,he had 4 fruit flies,his fruit flies double in number each day.how many fruit flies does he have at the end of three days

**math**

Eight-twentieths of a ton is how many hundredths of a ton?

**math**

three-fourhs of a gallon is how many eighths of a gallon?

**math**

one thousand three hundred twenty feet are what part of a mile. Since there are 5,280 feet in a mile the answer will be 1/4 of a mile. how would you set this up in a fraction?

**5th grade maths**

Choose a reasonable metric unit to complete each sentence and how did you do it. 1. 1 mile is about 1.6---- 2. 1 yard is about 1------ Thanks

**calculus 1**

At noon, ship A is 20 nautical miles due west of ship B. Ship A is sailing west at 21 knots and ship B is sailing north at 18 knots. How fast (in knots) is the distance between the ships changing at 5 PM? (Note: 1 knot is a speed of 1 nautical mile per hour.)

**calculus 1**

At noon, ship A is 30 nautical miles due west of ship B. Ship A is sailing west at 18 knots and ship B is sailing north at 19 knots. How fast (in knots) is the distance between the ships changing at 3 PM? (Note: 1 knot is a speed of 1 nautical mile per hour.)

**dynamics of catering**

john is a caterer who encourages his staff to make suggestion on work procedures and frequently incorporates their thoughts into his management program. what kind of management style does john exhibit?

**penn foster**

what should you do if you find a bone or foreign matter in your food after you've already put it in you mouth?

**2nd grade english**

What is the hidden word in these letters. tiningtesre Thanks.

**Grade 2 english**

Hi What is the hidden word in the following letters- panirlea Thanks

**Grade 2 english**

What is the hidden word in the letters below:- aeeilnnstv Thanks

**Grade2 eng**

What is the hidden word in these alphabets? abbceeru Thanks

**College Physics**

a) 18.12

**Grade 2 english**

what is this word when descrambled? dasholoycr

**Economics**

Should a firm shut down its unprofitable operation. Firm uses 70,000 workers to produce 300,000 units of output per day. Daily wage is $100 p/worker dn price of firms output is $30. Other variable inputs is $500,000 p/day. Do not know the firms' fixed cost, but it is high ...

**university-health economics**

because the peaple living in city accicable to arrive the hhealth secter more than people live in country

**Grade 2 english**

What word is made up by using the alphabets -usrfcfy

**science(chemistry)**

Using condensed electron configurations and Lewis electron-dot symbols to depict the monatomic ions formed from each of the following reactants, predict the formula of the compound the ions produce. 1) K and P

**english**

what is the prefix for dismayed.