Monday
July 28, 2014

Posts by harold


Total # Posts: 119

us history
Describe the major military confrontations between the Native Americans and whites on the post-Civil war frontier

chemistry
Great, Thank you, Dick!

chemistry
This i wrong, Dick.

chemistry
Any ideas?

chemistry
What is the minumum acceleration potential (V) that must be applied to a beam of free electrons for diffraction to occur in a crystal of niobium (Nb)? Express your answer in volts.

Physical Science
How can we talk about the evolution of stars over billions of years when human beings have been observing stars for only a few thousand years?

Physica Science
Describe the movement of the Earth based upon the perceived change in positions of the stars

Physical Science
What are the noninvasive benefits of the medical technologies that rely on physics of elementary particles?

Physical Science
What are three medical technologies that rely on the physics of elementary particles?

Physical Science
What is the question that many have about the Department of Energy and Yucca Mountain

Physical Science
Is it true that electric cars do not generate pollution because they have batteries?

Physical Science
Where do electric cars obtain their energy?

Physical Science
Explain how the temperature difference between the poles and the equator drives the motion of the oceans and atmosphere.

Physical Science
Why do we call groundwater in most areas a "nonrenewable resource"?

Physical Science
How do ocean currents affect local climate?

Physical Science
What are the differences between ice caps and glaciers?

Physical Science
What kind of rock is below the soil in Waynoka, Oklahoma?

Physical Science
Describe how energy flows through the ecosystem near oklahoma

Physical Science
If I live in Oklahoma, what kind of ecosystem is near me?

Physical Science
Describe how transform plate boundaries differ from plate boundaries.

Physical Science
How do we know that tectonic plates move?

Physical Science
How many adjacent plates are there to the North American plate?

Physical Science
Descrive the "big splash" theory of the Moon's origin.

Physical Science
If I live in Oklahoma, and live in the North American plate, which direction are the adjoining plates moving?

Physical Science
What direction are the plates moving that I live near?

Physical Science
If I live in Oklahoma, what tectonic plate do I live in? How many adjacent plates are there to the one I live on? In which direction are these plates moving?

Physical Science
How do we know that tectonic plates move? Describe how transform plate boundaries differ from plate boundaries.

Physical Science
What are the tallest and longest mountain chais on Earth? How were they formed?

Physical Science
If the Mid-Atlantic Ridg opens at the rate of 5 centemeters per year, how much farther apart will Paris and New York be in a 1,000 years?

Physical Science
if Mount Everest is now 8,850 meters tall and is growing 2 centemeters per year, how old is it?

Math/Science
If it is 587 quadrillion miles across our galaxy and you are traveling at 93,000 miles per second, how long will it take you to go across it?

Science
The Milky Way has a radius of approximately 100,000 light years. How many miles is that? How long would it take you to travel across our galaxy if you were traveling at 50% the speed of light (show work)?

Science
I do not understand what you are asking

Science
If you are traveling 93,000 miles per second, and you needed to travel 620 trillion miles, how long would it take you?

Scence
the average temperature of the universe is 2.7 Kelvin. What temperature in degrees Fahreneit?

Science
If a galaxy is 1,000 Mpc away, how fast isit recending?

chemistry
Anonymous, your solution is wrong. Could you give me a hint of your steps?

chemistry
Any ideas??

chemistry
Two new metallic elements have been discovered, Cimium (Ci) and Sadowium (Sd). Both the pure elements and their solutions form simple cubic lattices. The bond strengths of the Ci-Ci and Sd-Sd bonds are known, but not the Ci-Sd bond. Bond Bond Energy (kJ/mole) Ci-Ci -245 Sd-Sd ...

math calculus
The demand function for a product is given by p = 10,000(1 − (5/5 + e^−0.001x)) where p is the price per unit (in dollars) and x is the number of units sold. Find the numbers of units sold for prices of p = $1000 and p = $1500.(Round your answers to the nearest int...

English
Whenever i____to the grocery, I always______ for fresh produce Went/looked Went/look Go/looked Had gone/look

English
Dave hoped that Steve and ____ would win the tennis tournament Him Himself He His

English
When one buys insurance, you need to be clear about your needs Pronoun shift in number Pronoun shift in person Ambiguous reference No error

English
While I like bacon, it is not good for me. Sentence fragment Comma splice Run on sentence Complete sentence

science
The hot coils in an electric baseboard heat the surrounding air using _____.

chemistry
Your x-ray lab has a monochromator consisting of a single crystal of nickel cut so that the (111) 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 λ=3.09...

calculus
A company manufactures and sells x cellphones per week. The weekly price-demand and cost equations are given below P=400-.5x and C(x)=20000+130x What price should the company charge for the phones and how many phones should be produced to maximize the weekly revenue. What is m...

the parts of speech
13. In which sentence do the capitalized words represent a prepositional phrase? A. The Maxi Deli is AROUND THE CORNER. B. Apart from his looks, I would never TRUST HIM. C. The conductor CALLED OUT, "All aboard!" D. I am not going TO RUN out of patience.

english/usgov URGENT
can you guys help me write a conclusion for this and also help me elaborate my essay better. I've worked so hard and it's due tomorrow Politicians can't agree on how to create more jobs and this is a major problem. The U.S. economy is in trouble because it has more...

MsSue I need YOU
<< This is the Summary<<The congress decided to undertake a short term 'funding measure',in order to avoid Government shutdown .They felt it would calm down the immediate crisis. A wise action on their behalf .The Senate will vote late Monday on its own ver...

MsSue I need YOU
yes I thought i indicated that.. The 1st one I had to write a summary of that link.. the 2nd one i had to write about how it's important to the US

MsSue I need YOU
Hi Mssue you helped me wonderfully before and I thank you. I would also like your help again.. My teacher says from previous papers that my summaries lack clarity/elaboration.. I was hoping maybe you could help me with that.. I have the 1st paragraph which I did also the 2nd p...

US Gov help URGENT
I'm very ignorant when it comes to politics. I had to write a summary on Shutdown looms: Spotlight now on Senate after Boehner wrangled House GOP votes If you go to google and type that in it's the first link.. Can someone give me some key pointers as to how the info i...

Math PLEASE HELP
solving for X: 3000=8800(1+(0.025)x) I divided both sides by 8800 got 15/44= 1+0.025x subtracted each side by 1 then got -29/44=0.025x = -26.36.. Is that right?

Math PLEASE HELP
solving for X: 3000=8800(1+(0.025)x) I divided both sides by 8800 got 15/44= 1+0.025x subtracted each side by 1 then got -29/44=0.025x = -26.36.. Is that right?

Math PLEASE HELP
solving for X: 3000=8800(1+(0.025)x) I divided both sides by 8800 got 15/44= 1+0.025x subtracted each side by 1 then got -29/44=0.025x = -26.36.. Is that right?

math
X=e^(6)(.075) how would u solve that the answer is x=1.5683, however i keep getting 30.257

chemistry
How many molecules are in 0.495 mole of lactic acid?

science
what are the arrangement and motions of molecules of substances in the solid phase, liquid phase, and gaseous phase?

science
what is the power dissipated by a 10 ohm resistor through which a 2 ampere current is flowing?

science
what changes in an atom produce an atomic spectrum?

science
what entropy changes occur whin a substance melts?

science
when a reaction in solution produces energy, what happens to the temperature of the solution?

Providence
Business relationships often present ethical dilemmas: not easily resolved easily resolved by following the relevant laws best resolved by creating a lose-lose situation irrelevant and therefore require no action

science
if 100g of water at 20 degrees C absorbs 5kj of heat, what amount will the temerature of the water increase?

science
when a bar magnet is moved toward a stationary conducting loop which direction does the induced current in the loop flow?

science
if a 10 microfarad capacitor and a 20 microfarad capacitor are connected in series what if the equivalent capacitance of the series combination?

science
three 10 ohm resistors are connected in parallel what is the equivalent resistance of the parallel combination?

math
I don't get it still !!!!!😯

math
cards have been removed from a wall one at a time down to last two, a queen of spades and a queen of hearts what are odds of picking the queen of hearts

Chemistry - Redox
Balance the following redox reactions by inserting the appropriate coefficients. Al + MnO2 --> Al2O3 + Mn HNO3 + H2S --> NO + S + H20 Initially, I know the first step is to find assign all the oxidation numbers for the products and reactants listed, but am unsure if I go...

Chemistry
Many power plants produce energy by burning carbon-based fuels, which also produces CO2. CO2 is a greenhouse gas, so over-production can have negative effects on the environment. Use enthalpy of formation data to calculate the number of moles of CO2 (g) produced per mega joule...

physics impulse
Dudeeeee, I couldn't figure this one out either. AND I WROTE THE TEST!

math
4.36 rad/sec

math
-23<=4x-6<=-5

PHYSICS
7.8

calculus II
(A) 2 students are sharing a loaf of bread. Student A eats half of the loaf, then student B eats half of what remains, then student A eats half of what remains, and so on. How much of the loaf will each student eat? (B) 2 students are sharing a loaf of bread. Student A eats 2/...

calculus II
All I need to know is how do you do part two (2)? Is there a summation formula that we can use?

calculus II
(A) 2 students are sharing a loaf of bread. Student A eats half of the loaf, then student B eats half of what remains, then student A eats half of what remains, and so on. How much of the loaf will each student eat? (B) 2 students are sharing a loaf of bread. Student A eats 2/...

college
The minimum daily values (MVD)for certain foods are given. They are based on a 2,000 calorie day diet. Find decimal and fractional notation for the percent notation in each sentence. (a) 1 ounce of Tostitos provides 9% of the Mdv of fat. (c)1/2 cup of Campbells' New Englan...

5th grade
rushil, a syllable is the number of parts a word is broken into. "word" is a one syllable word. "broken" is a two syllable word- bro-ken. Rushil is also two syllable. Ru-shil. Computer is three syllable, com-pute-r. Tap out the syllable as you read the line...

math
4 numbers are placed in a bag. two are removed and total 2.4. The numbers are returned to the bag and the process is repeated 4 more times. The totals are 2.4 2.5 2.6 2.7 and 2.8. What are the 4 numbers in the bag? please let me know how you arrived at the answer. I was good a...

English
Dear God woman. Who let you teach children? The system which tries to repress your personal expression in the classroom is the same one which, for some convoluted reason, gives jobs to people like you. You should quit before you do any more damage to those kids.

math
8)State a valid conclusion for the following statements: • If a person is a senior in college, then they have completed all of their general education requirements. • Beth is a senior in college

math
If there are 36 different flavors of ice cream and two types of cones are available, how many choices for a single scoop of ice cream on some type of cone do you have?

international business
I need to know exactly what the Foreign Corrupt Practice Act in Lima, Peru states as far as for a company called Gelerex.

Physics
The chemical potential energy of a certain amount of gasoline is converted into kinetic energy in a truck that increases its speed from 0 mph to 30 mph. To pass another truck the driver accelerates from 30 mph to 60 mph. Compared to the energy required to go from 0 to 30 mph, ...

Physics
Thank you so much for answering my questions thus far drwrls. One more,A force of 100 N, acting over a distance of 10 meters, increases the kinetic energy of a moving object by 500 J. This information is sufficient to conclude that the object accelerated, there was friction pr...

Physics
A 50 gram block is placed on a frictionless ramp 2 meters above the ground. It slides down the ramp and compresses a 140 N/m spring at the bottom. How far will the spring be compressed when the block is stopped by the spring? say 1.7 m

Physics
You throw a stone into some nice soft and gushy mud. It penetrates one inch, slowed by a constant force. If you wanted the stone to penetrate four inches instead of one, you would have to throw the stone into the mud? I say eight times as fast?

Physics
The chemical potential energy of a certain amount of gasoline is converted into kinetic energy in a truck that increases its speed from 0 mph to 30 mph. To pass another truck the driver accelerates from 30 mph to 60 mph. Compared to the energy required to go from 0 to 30 mph, ...

Phiysics
A rock is dropped from a hotel and strikes the ground with a particular speed. In order, to double the speed at impact, you would have to drop the rock from the hotel at? I say impossible to determine

Physics
A block of weight 3.8N is launched up a 30 degree inclined plane of length 2.25m by a spring with spring constant 2.35kN/m and maximum compression 0.10m. The coefficient of kinetic friction is 0.50. How much kinetic energy does it have at the top of the incline? I get 2.4J am ...

Physics
Does the axis system chosen affect the magnitude of potential energy? I say yes

Physics
A cart is launched on an air track with a certain speed from the force of a compressed spring. If you wanted to launch the cart at twice the speed, the spring should be compressed by? I say twice as much.

Physics
A 10 kg sled slides down a hill with an incline of 30 degrees above the horizontal. Because of friction, it maintains a constant speed. For every meter that is traveled, how much energy (in joules) does the sled lose? I say 98 sin(30) Joules?

Physics
If you have two objects, one four times heavier then the other, both at rest on a frictionless surface, and a person pushes against them for a distance of 5 meters. Assuming the force applied on both objects are equal, the kinetic enrgy of the light object is? I say one-quarte...

Physics
What is the work required for a 1000kg truck to increase in speed from 30 m/s to 40m/s? Is the answer 350 kJ?

Physics
A 1500 kg truck travels at 30m/s. It faces a force of 400 N from air resistance, what is the car's average power output? Is the answer 675 kw?If not please help me in any way you can,by showing the formula you used.

Physics
A 1400 kg truck goes up a hilly road at a steady 60 km/h. The force of air resistance on the truck is 400 N. If the truck's engine supplies the enrgy to the drive wheels at a rate of 35 kW, what is the slope angle of the road? I get 7.1 please help, don't really get it.

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