# Posts by Pete

Total # Posts: 200

**Financial maths**

Tara is saving for an overseas trip. Her taxable income is usually about $20 000. She estimates that she will need $5000 for the trip, so she is going to do some extra work to raise the money. How much extra will she need to earn in order to have $5000 after tax? Use any tax ...

**english**

oh its should be.

**english**

should

**Algebra**

The perimeter of a rhombus is 80 centimeters. The lengths of its diagonals are in the ratio 3:4. Find the length of each diagonal.

**physics**

Heather and Jerry are standing on a bridge 51 m above a river. Heather throws a rock straight down with a speed of 17 m/s . Jerry, at exactly the same instant of time, throws a rock straight up with the same speed. Ignore air resistance. How much time elapses between the first...

**Electronics**

I meant microfarad

**Electronics**

How long does it take for a 10 motivated capacitor with a 1 megaohm resistor in series to charge to 67% (1 time constant) of the applied voltage?

**Statistics**

Four cards are chosen at random. What is the probability that at least 2 are J's? How is this problem computed? Using Combinations or permutations?

**Geometry**

TAN (?) = 15 What is the missing value to the nearest hundredth? My guess is 86.19. :)

**math**

Posted question: 9 minus 3 divided by 1/3 plus 1 I guess the person who asked was looking at the following problem: 9 - 3 / (1/3) + 1 In that case: 9 - 3 / (1/3) + 1 = 9 - [3 / (1/3)] + 1 = 9 - [3 * 3 ] + 1 = 9 - 9 + 1 = 0 + 1 = 1 ----- If that person meant: [(9 - 3)/ (1/3...

**Chem**

What is the major(s) products of 2-methyl-1,3-cyclopentadiene with the addition of HBr(conc) at 40C ?

**Happy Pi Day, 2016**

lol...yeah lol?

**Happy Pi Day, 2016**

cool!

**math**

what size circumference would fit in a rectangle 11 in. x 16 in.

**Math, are they all right?**

Are you sure Frosty???

**physscience 9th grade**

list the steps to analyzing a graph from a slope mentality.

**Science**

the villi are just small projections (similar to cilia but not completely) that project from the epithelial lining of the intestinal wall. they are for increasing the surface area of the cell for increased absorption of nutrients. :)

**Math**

you're welcome!!

**Math**

to get y values you have to put the x values into the y equation. Y is a function of x. So for x=1,y=2.05. x=2, y=4.05. x=3, y=6.05. x=4,y=8.05. x=5,y=10.05. x=6,y=12.05. Does that clear things up?

**Math**

no, you have to plug in the values for x to get values for y. For instance, if you want x is 2, then y would have to be y=2(2)+.05 which is 4.05. If you want x as 1, y=2.05. Does that make sense Island G?

**math**

It is D. They will have no intersection. :)

**biology**

A toxin from a poisonous mushroom has been identified as a hydrophobic weak acid. It somehow can find its way to the inner membrane of mitochondria where it gets protonated on the outer surface of the membrane but deprotonated on the inner surface of the membrane. It would ...

**math**

it is B

**biology**

A toxin from a poisonous mushroom has been identified as a hydrophobic weak acid. It somehow can find its way to the inner membrane of mitochondria where it gets protonated on the outer surface of the membrane but deprotonated on the inner surface of the membrane. It would ...

**Chemistry**

If E Cu+2 had been chosen as the standard reference electrode and had been assigned a potential of 0.00 V, what would the reduction potential of the hydrogen electrode be relative to it?

**Geology**

The Sun Is 150 Million Kilometers From The Earth, And The Earth's Equatorial Radius Is 6378 Km. How Much Would You Expect The Sun's Intensity To Drop, Based Only On This Additional Distance?

**Physics(friction)**

Find the coefficient of friction between a 73kg cubic box measuring 3m and a hardwood floor 16m long and 20m wide if a total of 236N is required to start the box moving.

**math**

what is the maximum speed of a stationary bike set at a constant resistance rate of 2 kilopounds? how far could you travel in 12 minutes and 54 seconds?

**Writting skills**

Q-----An appositive is a noun that is placed after another noun in order to tell more about it and its usually set off with commas.

**HELP**

discern

**English**

What is the subject and subject complements of this sentence "Lack of water and wood remained a problem for Europeans." Is it lack and problem

**physics**

The edges of a shoebox are measured to be 11.9 cm, 17.3 cm, and 29 cm. Determine the volume of the box retaining the proper number of significant figures in your answer.

**Pre- Algebra**

12.

**statistics**

Between 50 and 80 people are hired on a ship. 75% speak English only and 25% speak German only. What is the mean number of people that speak English only? Can this even be calculated?

**Writing**

Thank you.

**Writing**

Is the answer B?

**Writing**

13. Which of the following is a complex sentence? A. I would like to visit the Kinshasa, but I understand the city is unsafe for foreigners. B. As Jake was reading the letter from June yet again, the flight attendant coughed gently to get his attention. C. I simply cannot make...

**Physical Science**

0.25kcal/kg-C

**physics**

Two hockey players strike a puck of mass 0.159 kg with their sticks simultaneously, exerting forces of 1.30 103 N, directed west, and 9.90 102 N, directed 30.0° east of north. Find the instantaneous acceleration of the puck.

**PHYSICS(help)**

@some0ne If the spring force and the friction force are equal and opposite, what is the net force? @Roy "How do we deduce how far back the block moves with the energy difference obtained?" The friction is a function of distance. On the way from x to x1, a certain ...

**PHYSICS(help)**

(b) Asha - why did you divide by 2? Think about what a "period" of oscillation is. Leave the physics and maths to one side for a second. How is a "period" defined? Visualise it. For our motion from x to x1, how much of a period is that? (c) I got a ...

**Floral Design**

Sunflowers

**chemistry**

(111) plane wavelengt ambda= 3.091 A lattice constant is alpha = 3.53 A

**chemistry**

Your x-ray lab has a monochromator consisting of a single crystal of nickel cut so that the plane lies in the cube face. At what angle (in degrees) should the cube face be tilted with respect to the incident beam in order to select radiation with a wavelength ? The lattice ...

**math**

Mr Ernst leaves home at noon, traveling at 50 mph. His loving wife leaves at 1 pm with a briefcase that Mr. Ernst forgot. How fast must his wife drive to catch him by 5 pm?

**Math**

Thanks

**Math**

Whats the monthly principal and interest payment for a mortgage with a financed amount of $81,000 at 9% for 25 years?

**Physics**

Calculate the resistance of 80 metres of copper wire, with a c.s.a. of 0.5mm2, given its resistivity of 1.72 x 10^-6 ohms per metre, Note, the area of the wire must be expressed as a portion of its base unit of measurement, which is the square metre.

**Physics**

Suppose that you are using a multimeter on the OHMS scale to test a capacitor and the meter reads zero. What condition of the capacitor does this indicate?

**fire science**

A compartment measures 14 feet wide, 12 feet long and 8 feet high, lined with ½ inch sheetrock and has a standard 36 inch by 80 inch door. What HRR is required for flashover?

**Physics**

A fuel has heat of combustion equal to 30 kJ / g. How much energy is released when 5 kilograms are oxidized?

**Physics**

A compartment measures 3.5 meters by 5.5 meters and is 3 meters high. A fire raises the temperature from 68of to 1500 of. If the starting pressure was 1 atmosphere, what volume is present at the elevated temperature assuming the compartment has openings to reduce pressure?

**Physics**

A compartment measures 3 meters by 5 meters and is 2.8 meters high. A fire raises the temperature from 20oC to 1000 oC. If the starting pressure was 1 atmosphere, what pressure is present at the elevated temperature assuming the compartment remains closed?

**science**

Melons

**Writing skills 1**

adjective

**Math**

Sales tax an item that cost $3.00 + tax rate is 6%

**Math**

Find the sum of all integers c, such that for some integers a and b satisfying a<b<c, a(b−c)^4+b(c−a)^4+c(a−b)^4=836

**health**

Bones contain more ________ than any other organ. A. Calcium B. Vitamin C C. Phosphate D. Iron

**physics**

On Mars, the acceleration due to gravity is 3.71 m/s2. How far would a rock fall in 3 s if you dropped it on Mars?

**Algrbra**

A certain paperback sells for $12. The author is paid royalties of 11% on the first 10,000 copies sold, 12.5% on the next 5000 copies, and 18% on any additional copies. Find a piecewise-defined function R that specifies the total royalties if x copies are sold. Please help me ...

**Math**

100

**pyshic**

4.5

**math**

I agree with Sneha and Ms. Sue

**math**

Robert planted pumpkins to sell. Their garden has 5 sides. 5 feet 8 inches, 7 feet 8 inches, 10 feet 3 inches, 7 feet 5 inches, 7 feet 11 inches. What is the perimeter of their garden?

**Chemistry**

Calculate the velocity of a rock that weighs 48 grams dropped from a height of 355 meters, gravity 9.8

**pre-calc**

jessica is standing 2 miles from the center of the base of pikes peak and looking at the summit of the mountain which is 1.4 miles from the base, what angle of elevation is jessica looking at the summit of the mountain?

**nuclear**

In the start of the equation .. for In(No/N) I understand the No/N is the percentage that the sample is of carbon 14 compared to a living sample, but how do you get the In ? where does it come from ?

**nuclear**

Is that 0.693/ t 1/2 0.693 over t one half ?

**nuclear**

Calculate the age of a plant sample that shows about one-eighth of the carbon 14 of a living sample. The half-life of carbon-14 is about 5760 a. Help please...

**Math**

heather has $2.50 in nickels, dimes, and quarters. she has 3 times as many nickels as dimes and four times as many quaters as dimes

**Physics**

Find the current in the 10.0 resistor in the drawing (V1 = 20.0 V and R1 = 15.0 )..?

**human religions**

Can you provide any examples of how some religions combine their religious practices?

**human religions**

what effect do you think the “combining of religious practices” will have on the future of organized religion?

**physics**

A toboggan of mass 8.4 is moving horizontally at 18 . As it passes under a tree, 18 of snow drop onto it. We're covering Momentum and collisions, and I have no idea where to start here.

**physics**

A toboggan of mass 8.4 is moving horizontally at 18 . As it passes under a tree, 18 of snow drop onto it. We're covering Momentum and collisions, and I have no idea where to start here.

**Chemistry**

Balance: NH3 + [Cd(NH3)4] > Cd2+ + NH4+

**probabilities**

The proportion of red marbels in a large jar of red and black marbels is 0.4 and the percentage of damaged red and black marbels is 0.7. What is the probability of selecting randomly a black and damaged marbel? If you randomly select three marbels, what is the probability of ...

**Physics**

A fire helicopter carries a 555 kg empty water bucket at the end of a cable 20.9 m long. As the aircraft flies back from a fire at a constant speed of 38.4 m/s, the cable makes an angle of 38.3° with respect to the vertical. A) After filling the bucket with sea water, the...

**america past and present**

philosophies of religion

**Math**

Mr. Smith bought shoes for $ 120 and a suit for $ 340. Find the total cost including tax if the tax rate is 5.5%. (a)$485.30 (b)$48.53 (c)$ 358.70 (d)$460 (e)$406

**Psychology**

Like the popular belief that older adults do poorer in schools than their younger counterparts, the midlife crisis___________________. 1.is more accurate when describing an older population. 2.is more accurate when describing adolescents. 3.occurs more often among men. 4.is ...

**PS**

Does it look to you like Aristotle ever performed any actual experiments with falling objects? Explain your answer, based upon your observations from this lab .

**P.S.**

A ball was dropped off a cliff and took 3.09 s to fall to the water below. Neglecting air resistance, how far (in meters) did it fall? (How far is it down to the water?)

**physical science**

A ball was dropped off a cliff and took 3.09 s to fall to the water below. Neglecting air resistance, how fast (in m/s) was the ball moving just as it hit the water

**physical science**

If a ball is thrown straight up at a speed of 27.8 m/s, how long (in seconds) will it continue to rise before it starts to fall back down

**physics**

if a van has a package in the back and is traveling 55 miles and hour is in a head on collision with a vehicle also traveling 55 miles an hour how fast is the package in the back of the van going to hit the driver in the back

**computer science**

to write a report on Object-Oriented Systems. The report should focus on the following systems including definition, applications, and advantages and disadvantages. • Object-oriented Systems • Object-oriented database • Object-oriented data modeling • ...

**science**

what are some positve things about cane toads

**English**

I'm not sure because it is the name of the beetle.

**English**

Ok so just capitalization every Bess Beetle in my paper.

**English**

The teacher will show the students a picture of a bess beetle with all the parts labeled. Does bess need to be Bess? I used bess beetle through my whole paper not sure when to capitalization bess.

**English**

The student will Sorry cut off the first part of the sentece. Thanks for the help

**English**

Will write a paragraph of what they think is the best defense mechanism of the Bess beetle and why. Is this sentece correct or should Bess be lower case?

**physics**

104

**English**

I went to parent-teacher conferences, and it was not what I expected. I have learned that at parent-teacher conferences not all the parents show up. Are those sentences correct?

**social studies**

The American Civil War 1861–1865

**English**

Never mind about the first sentence I got the answer. I just need help with the second sentence. I missed spelled everyone in the second sentence.

**English**

I did not realize how important it was to collaborate with the staff at school, such as janitors, until I need them in my room. Teachers have so many responsibilities, and for that reason, it is beneficial for evryone to have as much help as possible. Are this sentences ...

**English**

Thank you

**English**

Okay It took me a while to meet my communication goals because Mrs. Step was not there for a while. Now is the sentence correct?