Monday
July 28, 2014

Posts by anonymous


Total # Posts: 70,592

Science
Explain the energy transformations during skydiving? please note: that I need to EXPLAIN!!! Thank you very much in advance...your help is very much appreciated!! x

reading- suffix
Servant - one who serves Merchant - one who trades Band assistant - one who assists in a band

Social Studies
Explain why you think Matthew Lyon is an important figure in American History and why he should be included in the Register. Would it be for him being the first person to be put on trial under the Sedition Act? He opposed going to war against France and objected the land tax t...

Math
565.49 is right.

Math
I=prt 6800(0.077)13/12)=565.49 ??

Math
I = Prt I = 6800(7.7)(1.8) I = 9424.8 ... I think

Math
how you getting 5236 ?

Math
Montel loaned $6800 to a friend for 13 months at an annual rate of 7.7% simple interest. How much interest did the borrower owe?

math
((a)/(a + 3)) - ((4)/(a + 5))

Science
Explain the energy transformations during skydiving? please note: that I need to EXPLAIN!!! Thank you very much in advance...your help is very much appreciated!! x

Chem
The following results were obtained when a sample of pineapple juice was analyzed to determine its vitamin C content. A 19.8 mL sample of pineapple juice was placed in a flask with 20 ml of 0.5 M H2SO4, 1.0 g of potassium iodide, KI, and 25.00 mL of 0.01988 M potassium iodate,...

Environmental Science
Subsistence vs. Industrial Agriculture Which type of agriculture is more sustainable? Why

Enviroinmental Science
Which type of agriculture is more sustainable? WhySubsistence vs. Industrial Agriculture?

Programming
Develop a menu-driven program that inputs two numbers and, at the user's option, finds their sum, difference, product, or quotient.

math
As compared to its first year of operation, ABC Company grew 8% in the second year and an additional 2% per year for the next two years. If total growth for years 2-4 was $45,000 over the first year’s sales of $150,000, how much did ABC Company grow in year 2?

english
Which propaganda technique is used in this sentence? The candidate I endorse believes to his very soul that this change would destroy this lovely community and its soul by disrupting you, its heart and soul.

maths
Determine the length and breadth of a rectangle if the length is 3cm less than twice the breadth, and the perimeter is 18 .

Astro-Physics
Imagine you are in a spaceship one million km from a black hole of mass 2×1030 kg. Initially you are flying directly away from it at a velocity of 12.8 km/s. Using the n-body approximation, what is your velocity one second later? Type your answer in metres per second?

what is the answer
An object 8.1 feet tall casts a shadow that is 24.3 feet long. How long in feet would the shadow be for an object which is 20.1 feet tall?

math
he sum of three consecutive integers is 111. What are the integers? (Enter your answers as a comma-separated list.)

law
The crime analysis technique involves the study of crime and/or social problems in a specific area is Tactical crime analysis

math
does anybody know how to find the mean absolute deviation and the steps

math
Paul bowled 6 games today. His scores are shown below. Game 1: 158 Game 2: 124 Game 3: 110 Game 4: 167 Game 5: 146 Game 6: 165 a. What was Paul's median score for the 6 games? Answer: 152 b. What was Paul's mean score for the 6 games? Answer: 145 c. Paul will bowl one ...

chemistry
Calculate the theoretical volume of gas you would expect to be evolved from your experiment if X moles of magnesium were reacted with an excess of HCl at standard conditions (STP).

Math
10/2-1/4=

Maths
13. The pet shop owner told Jean to fill her new fish tank 3/4 full with water. Jean filled it 9/12 full. What fraction of the tank does Jean still need to fill?

Science
4. To identify the genotype of yellow-seeded pea plants as either homozygous dominant (YY) or heterozygous (Yy), you could do a test cross with plants of genotype ________. (explain your answer) Do we do a punnet square?

Science
Explain the energy transformations during skydiving Explain what happens once a skydiver reaches terminal velocity please help...i cant find any information...please note that I need to EXPLAIN

mathematics
Two equal circle touch externally at point P. PX and PY are chords in the respective circles which are perpendicular. If the centres Are A and B. Show that AX is parallel to BY and AXYB is a parallelogram.

Science MS SUE..PLEASE ANSWER
Please help!!

Science
GCSE Physics-Forces affecting falling objects. My falling object is a skydiver Can you please help me to find the information needed? Nothing too complicated please. Here is a list of things I need to include but I have no idea where this information can be found on the intern...

Science
What happens to the resultant force on each point of the skydive?

Science
Explain what happens when a skydiver reaches terminal velocity? thank you...your help is very much appreciated!!

chemistry
What is the pH of a solution if [H+] = 2.3 x 10–5 M?

Precalculus
Solve for x given the interval of [0,2pi). cos^2x=2+2sinx I got (3pi)/2 or 270 degrees.. By the way, does the notation [0,2pi) mean 0<=x<2 pi or 360?

home economics
Cost and concequences of providing welfare

statistics
a medication is 75% effective against a bacterial infection. find the probability that if 12 people take the medication, at least 1 person"s infection will not improve

physics
what is the magnitude and the direction of an electric field when an electron is accelrated vertically upward at a distance of 5.5 metres in 3 micro seconds?

physics
A 9.0 §Ù resistor and a 53.0 §Ù resistor are connected in parallel to a battery, and the current in the 9.0 §Ù resistor is found to be 1.41 A. Find the potential difference across the bat- tery.

calculus help
Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. y = 4 − 1/2x, y = 0, x = 0, x = 1; about the x-axis V = ????

business
Keeping your purpose and desired outcome in mind as you write your message is most likely to help you evaluate whether your content:

Chemistry
How many grams of lithium fluoride must be added to 3.5 kg of water to make a solution with a molality of 2.0 molal?

managerial accounting
Scott Manufacturing Co.’s static budget at 10,000 units of production includes $40,000 for direct labor and $4,000 for electric power. Total fixed costs are $23,000. At 12,000 units of production, a flexible budget would show:

chemistry - Science
I did all the calculations, but I got 1.09V... not sure where I went wrong with calculations

FLUID MECHANICS
ayayayayayay

math
please help fast

math
calculate the area of a rectangle which measures 21m by 7m.

mgt 435
Of the following, which is one of the most serious liabilities of the traditional, hierarchical organizational structure, as opposed to the modern, more decentralized approach? (Points : 1) Finding the most qualified CEO Responding quickly and effectively to potentially damagi...

Physics
A 32.0kg crate is initially moving with a velocity that has magnitude 3.92m/s in a direction 37.0 ∘ west of north.How much work must be done on the crate to change its velocity to 5.50m/s in a direction 63.0 ∘ south of east?

physics
In the Bohr model of the atom, the ground-state electron in hydrogen has an orbital speed of 2190 km/s.The mass of an electron is 9.11×10−31kg. What is its kinetic energy?

English 9
Writing Prompt: You have been assigned the task of introducing Romeo and Juliet to a group of students with no experience of Shakespeare or Shakespearean Theater. With a partner or yourself, outline the points you want to make in your introduction and how you will analyze and ...

Science
Ok, I'm really confused. Sometime ago, PSYDag said that B wouldn't apply if the water was quiet.

Science
Someone else said that it wasn't B.

Science
How do sound waves travel between a boat and a submarine in sonar technology? A. Because of water particles. B. Because of water waves. C. Because of water ripples. D. Because of water currents. Is it A?

Math
If a team wins 2 more games they would win 70% of their games. They are playing a total of 20 games. How many games have they won so far?

math
Ms. Black has one begonia plant. If she buys two begonia plants each year for every one she has, how many will she have in four years?

geometry
The focus of a parabolic mirror is at a distance of 8cm from the center the mirror is 25cm deep find the diameter of the mirror.

Chemistry
kkjh

Chemistry
Automobile batteries use 3.0 M H2SO4 as an electrolyte. How much 1.20 M NaOH will be needed to neutralize 225mL of battery acid?

Chemistry
What is the molality of the solution that results when 33.3g of C2H5OH are added to 76.7g of water?

Chemistry
liters *

Chemistry
How many litters of Oxygen will be required to burn 3.8 liters of propane, C3H8?

Math
500 pounds of apples were purchased at $0.35 per pound. The desired markup is 30% based on selling price, but 18% spoilage is expected. What should the selling price per pound be?

Math
Find the percent markup based on selling price, if the percent markup based on the cost is 14%. (Round to the nearest tenth percent.)

Science
How do sound waves travel between a boat and a submarine in sonar technology? A. Because of water particles. B. Because of water waves. C. Because of water ripples. D. Because of water currents. B?

science
Discuss the relationship between the size and weight of an object and the amount of friction that is present. Sports such as soccer involving running, stopping, jumping, and kicking. Discuss how friction helps players. Please help, I am stuck and confused.

Chemistry- is this correct?
50.0 ml of .30 KOH are required to titrate 60.0 ml of H2SO4. What is the M of the H2SO4? Is .13 correct?

chemistry
For which salt, K2SO4, Li2SO4, KClO4, or NH4Cl, will increasing the temperature of the water have the greatest change in solubility per 100 g solvent?

chemistry
what will be the pressure of 0.010m of oxygen gas in a 4.5L flask at a temperature of 10,000C?

calculus help
use the midpoint rule with the given value of n to approximate the integral. round the answer to four decimal places. integral 0 to pi/2 2cos^3(x)dx, n=4 M4=????

math
thanks a lot

math
Amy earned $93 at work yesterday. She gets paid $8 per hour, plus she received a $45 bonus. Write an equation that can be used to determine how many hours Amy worked.

Chemistry
100.0 ml of 0.25 M HCL are required to titrate 65 ml of NaOH. What is the M of the NaOH?

math
Use distributive property to write an expression equivalent to: 10 (5g + 8k)

math
C) 4 The area of the circle is twice the area of the triangle. Fina the area of the triangle and multiply it by two. 1/2(3.14*4)(4)= 25.12 25.12*2= 50.24 50.24 is the area of the circle so.. 50.24= pi(radius^2) 50.24/3.14= 16 The square root of 16= 4

math
thanks

math
Evaluate: 2 to the fourth power + 2 to the third power

History8
its not a i tried that

Calculus Help
Use calculus to find the area A of the triangle with the given vertices. (0, 0), (3, 1), (1, 8) A = ????

trig
A soccer ball is placed 12 ft away from a goal post that measures 8ft high. You kick the ball and it hits the crossbar at the top of the goal. What was the angle of elevation of your kick?

math
thank you

math
It took Aaron 4 hours to drive 232 miles. Use the equation below to determine what his average rate of speed was. D = r x t D = distance, r = rate of speed, t = time

science
B C and D

science
Please help!

science
Which of the following illustrates mechanical weathering? A. Carbonic acid weathers marble limestone B.As plants grow, they produce weak acids that slowly dissolve rock C.Oxidation causes weathering in rock<--- D.Repeated freezing and thawing in rocks causes weathering

science
So D?

science
Actually I think its C

science
Which of these statements about saltwater is correct? Saltwater freezes at a lower temperature Saltwater freezes at a higher temperature<--- Saltwater does not freeze at any temperature. Saltwater’s freezing point depends on the temperature of ocean floor

Algebra
Melissa Stone was just hired as a nurse at a hospital where she will earn $45,000 per year. If she receives a 6% raise each year, how much total money will she earn over the next 10 years?

algebra
(y^2 - y + 2)/(y + 2) I put this in calc101 . com and I got an answer with y - 3 in the quotient and got 8 in thr remainder area. My answer key says the answer is y - 3 + 8/y + 2. Can someone explain how the answer key has this answer?

Math
A truck costing $25,000 with a residual value of $5,000 was purchased by Rim Corporation. The truck’s estimated life is 10 years. At the end of Year 2, what is the book value using declining-balance method? Assume a depreciation rate of twice the straight-line method

Help Ms.Sue!!! Social Studies
Read your lesson again. I had the same questions and the lesson covers these questions well.

Math
. A playground has a total of 18 swings and slides. There are as many swings as there are slides. How many are there of each?

Physic
45π - 19π - 35π = -28.3rad/s 45π - 19π + 35π = 192radrad/s

Physic
Two identical tops spin with angular velocities 45π rad/s up and 19π rad/s down, respectively, about vertical axes on a table. The tops bump into one another and separate. After the collision, one of the tops has an angular velocity of 35π rad/s in its original ...

Physic
Diameter = 1000rev/min ÷ 60s * 2π * 2.9cm ÷ (2π * 31rev/s) Diameter = 1.56cm

Physic
A vacuum pump is connected to its electric motor by a belt drive (Fig. 9-40, not to scale). The motor rotates at a rate of 1000 rev/min and the diameter of the motor shaft is 2.9 cm. How large (diameter) should the pulley be if it is designed for a speed of 31 rev/s? (Answer: ...

chemistry
1.50 mol sample of helium at a certain pressure and temperature has a volume of 31.4 L. a second sample of helium at the same temperature and pressure has a volume of 42.4 L. Therefore the second sample contains how many moles of helium?

Math
Thanks, Reiny I see you answer a lot of questions for people. Thank you for taking the time out to help others that struggle in math. Your help is greatly appreciated

math
-2d + 18 - 4d = 60

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