Friday

July 25, 2014

July 25, 2014

Total # Posts: 375

**Physics!**

Two identical isolated particles, each of mass 1.55 kg, are separated by a distance of 30.6 cm. What is the magnitude of the gravitational force exerted by one particle on the other? --------------- I solved it as: Fg = G(m^2/r2) = G(m/r)2 = 6.673x10^−11 Nm2/kg2 (1.55 kg...

**Earth Science**

68.88888889 miles

**Physics**

A playground is on the flat roof of a city school, 7.00 m above the street below. The vertical wall of the building is 8.00 m high, forming a 1.00 m high railing around the playground. A ball has fallen to the street below, and a passerby returns it by launching it at an angle...

**Physics**

The water in a river flows uniformly at a constant speed of 2.53 m/s between parallel banks 69.8 m apart. You are to deliver a package directly across the river, but you can swim only at 1.74 m/s. (a) If you choose to minimize the time you spend in the water, in what direction...

**Physics**

A hare and a tortoise compete in a race over a course 1.20 km long. The tortoise crawls straight and steadily at its maximum speed of 0.540 m/s toward the finish line. The hare runs at its maximum speed of 9.00 m/s toward the goal for 0.800 km and then stops to taunt the torto...

**Science**

It is 68.88888889 because there are ONLY 90 degrees of latitude between each pole. So, 6200/90=68.8888889.

**Science**

It is 68.88888889 because there are ONLY 90 degrees of latitude between each pole. So, 6200/90=68.8888889.

**science**

hi could you please give me some idea's on how to make a 10 second timer without useing marbles,sand or electronics. thanks

**Economics**

Consider a country that initially consumes 100 pairs of shoes per hour, all of which are imported. The price of shoes is $40 per pair before a ban on importing them is imposed. Use a graph to explain what happens to the price of shoes and the quantity of shoes consumed after a...

**Economics**

Using demand and supply analysis, answer the following questions. What are the effects on the exchange rate between the British pound and the Japanese yen from: a. An increase in Japanese interest rates b. An increase in the price of British goods c. An increase in British int...

**math**

it is less than 60 and greater than55 if you add digits the sum is 13. write the number

**7th grade science**

what is a cell wall

**Organisational Behaviour**

What is Symbolic Protest in Illegitimate Polics terms?I ask my lecturer and he says where people from the same department come together and say that they don't want to work.Is it correct?

**6th grade**

What is the current world population of clownfish?

**history**

i don't know

**Physics**

You toss a ball up at 7.3m/s leaving your hand at 1.5 m above the floor. What is the balls velocity just before it hits the floor. Is the answer 2.7 m/s Suppose a second ball is tossed straight down at 7.3 m/s (from the same place 1.5 m above the floor). What would its velocit...

**Physics**

A train travels 84 km/h when it reaches a slower train 47 meters ahead traveling the same direction at 24 km/h. If the faster train decelerates at 2.1 m/s^2 while the slower train is at a constant speed, when will they collide? If the train that is faster begins to decelerate ...

**Physics**

Just before landing on mars, a spaceshuttle turns on its retroengine and eventually comes to a complete stop 15 meters above the planets surface. It then drops freely down to the surface. How long does it take to fall to the surface.What is the impact speed? Is the answer 1.5 ...

**Physics**

A train travels 84 km/h when it reaches a slower train 47 meters ahead traveling the same direction at 24 km/h. If the faster train decelerates at 2.1 m/s^2 while the slower train is at a constant speed, when will they collide? If the train that is faster begins to decelerate ...

**Physics**

A train travels 84 km/h when it reaches a slower train 47 meters ahead traveling the same direction at 24 km/h. If the faster train decelerates at 2.1 m/s^2 while the slower train is at a constant speed, when will they collide? If the train that is faster begins to decelerate ...

**Physics**

Just before landing on mars, a spaceshuttle turns on its retroengine and eventually comes to a complete stop 15 meters above the planets surface. It then drops freely down to the surface. How long does it take to fall to the surface.What is the impact speed? Is the answer 1.5 ...

**Math**

$432....i think u do 16*3*3*3..i think

**Human Resources**

Can someone tell me what is employee training and employee development?

**Chemistry**

Thank you for your help!

**Chemistry**

What is the shape and structure of Magnesium Oxide? Thank you for helping me.

**music**

what does 7:LAL mean its one of thoses things were you have to find what it means?

**chemistry**

The scales of a balance are 70, 3 and 0.9 which is between 0.011 and 0.012 .

**Chemistry**

Thank you DrBob222. Those were very helpful.

**Chemistry**

Can someone please tell me what four radioisotopes are used in medical diagnosis or treatment, and what their nuclear symbols are? Thanks

**Chemistry**

Thank you so much DrBob222. This was very helpful.

**Chemistry**

Can someone please tell me what four radioisotopes are used in medical diagnosis or treatment, and what their nuclear symbols are? Thanks.

**AP U.S History**

Thank you.

**AP U.S History**

Can someone please explain what Federalism is? I don't quite get it yet. Please be specific.

**Spanish**

Thank you so much. This really helped!

**Spanish**

I'm required to look up an article in a Spanish magazine that has to do with events that took place in Spanish hometowns. The magazine has to be in Spanish and it has to deal with event(s) that occurred in a Spanish hometown. I've looked everywhere on Google and can...

**HHHHEEELLLPPP**

Consider the brackets around the absolute value as a wall- you cannot break into that wall until you've gotten rid of everything around it: 8-|3x-2|=3 -8 -8 -|3x-2|= -5 multiply by that -1 in front of the absolute value to get |3x-2|=5 Now you can solve. When an absolute v...

**History**

Thank you very much!

**History**

In Article 2 of the U.S Constitution, what is the process for choosing the president? I'm required to explain the process in 4 steps.

**Chemistry**

I understand now. Thank you.

**Chemistry**

I'm a bit confused as to when I should use an alpha particle and when to use a beta particle in a nuclear equation. For instance, the nuclear equation for carbon-14 is nitrogen-14 and a beta particle. Could I also say the equation is Berylium-13 and an alpha particle since...

**math**

No, any whole number ending in 8 will never be prime. A number ending in 8 will always be divisible by 2. The rule for 2 is: If any number ends in any even number (0, 2, 4, 6, or 8) it will always be divisible by 2 and therefore it is not prime. There are other rules such as t...

**Chemistry**

Thank you so much!

**Chemistry**

Is it red?

**Chemistry**

If a hydrate of the formula MCl * xH2O decomposes when heated to produce HCL, what change would you expect to occur when a piece of litmus paper is held in the path of the vapor released?

**Chemistry**

Thank you so much. I really appreciate it!

**Chemistry**

What is the difference between percent abundance and relative abundance?

**french**

How do you ask if something is mild or spicy in French? What about asking to make meat well done? If you are out shopping, how would a cashier tell you that you gave too much or too little money?

**chemistry**

Thank you for your help! :D

**chemistry**

There are four main methods of making salts: Acid + Metal, Acid + insoluble base, Acid + alkali and solution of salt A + solution of salt B. a. a student wanted to make some sodium sulfate. i. which method would be best to use? ii. why? iii. which reactants would you use? iv. ...

**Marketing**

Hello, My group has been assigned to do a General Market Survey on a foreign country (we picked France). Can anyone give us some pointers on what topics/statistics to include, where to find information, anything at all? We are to use secondary data to compose a general evaluat...

**math**

6xsquared +7x-3

**economics**

Suppose that you had $100. ABC bank is offering 5 percent simple interest. DEF Bank is offering 10 percent simple interest. Which bank would you deposit your money into if you wanted to earn more interest?

**Physics**

A closely wound rectangular coil of 80 turns has dimensions of 25 cm by 40 cm. The plane of the coil is rotated from a position where it makes an angle of 37 degrees with a magnetic field of 1.10 T to a position perpendicular to the field. The rotation takes .06 s. What is th...

**ALGEBRA**

THE PRICE OF A SWEATER IS $5 LESS THAN TWICE THE PRICE OF A SHIRT. IF FOUR SWEATERS AND THREE SHIRTS COST $200, FIND THE PRICE OF EACH SHIRT AND EACH SWEATER? HOW DO YOU SET UP THIS PROBLEM?

**MATH**

HOW DO YOU SOLVE 5Y=8-3X? (BIG HELP)

**MATH**

THE DIFFERENCE BETWEEN TWO NUMBERS IS 16. FIVE TIMES THE SMALLER IS THE SAME AS 8 LESS THAN THREE TIMES THE LARGER. FIND THE NUMBERS? HOW DO YOU SOLVE THIS? PLEASE.

**Eco**

jasmine works in sales but is considering quitting work for 2 years to earn an MBA. Her currrent job pays $40,000 peryear (after tax),but she could earn $55000 per year if she had her master of business admin. Tuition fees is $10000 per year. Jasmine's discount rate is 6% ...

**home ecinomics**

what is a carbohydrate

**Algebra 1**

Would this be correct? x(2x^2-100)

**Algebra 1**

I really need help! Plese!! The price of an item is given by p=2x^2-100. Find the polynomial that represents the revenue generated from the sale of x items.

**Honors English**

I'm doing a project on greek gods and I can'ty find any pictures on apollo.Please help. Hmmm. Did they have kodak cameras in mythology? Here is what Michangelo perceived he saw: (Broken Link Removed) Here are some other "pictures": (Broken Link Removed) Hmmm....

**Econ**

Suppose that a borrower and a lender agree on the nominal interest rate to be paid on a loan. Then inflation turns out to be higher than they both expected. Does the lender gain or lose from this unexpectedly high inflation? Does the borrower gain or lose? Think it through. Th...

**science**

what is the big idea of energy? The big idea for me is that mass and energy is one in the same, that each can be converted to the other. For some others, the big idea is that Entropy is created from useful energy, and in natural processes, that energy cannot be reclaimed.

**English :Journal entry**

i have been asigned to write journal entery and i havent been doing it then our teacher told us that it is our assesment and i havnet done one sonce march and im panicking cause im not very good at english. can anybody help me?

**science**

im doing this for ma lil sis and even i dnt knw lol fanx for everyone tht has help also wen the candle is aloght it realeases both heat and light energy into the atmosphere around it

**ICT**

the use of ICT has allowed banks and building societies to keep detailed records of purchases tha people make using credit and debit cards. explain one reason why this is a benefit

**ICT**

state 2 advantages to the customer of banks installing ATM's

**ICT**

describe briefly an application for each of the following methods of input 1.MICR 2. key-to-disk 3.video camera 4.touch screen 5.smart card

**ICT**

state one item of software that should be supplied with a scanner and state why it is needed

**ICT**

give 3 reasons why speech recognition systems sometimes fail to be 100% effective

**math**

I agree. I think math is not to bad, but it just gets harder and harder.

**reagents**

Do these reagents fit with the substance being testd for? First is Biuret reagent protein Second is BACL^2 starch Third is AgNO^3 chloride ion Final is albustix protein. I can help with two of these. BaCl2 is used to test for sulfates, not starch. AgNO3 is used to test for the...

**meiosis in humans**

Does it occur during the development of the zygote, repair of tissue, development or sperm, or a combination of the above? http://www.onelook.com/?w=meiosis&ls=a Chloe Of your multiple choices please read the following site page and I think the answer will be evident: http://w...

**physical education/sport**

explain the view that physical education is a process of educating the whole person Chloe, this is just my opinion, but it is supported by both physiology and psychology. Just as a brain needs age and experience to mature to its potential, the body needs the same thing. Think ...

**Social Studies**

I have to find the definition of a "locator" and draw it. I am studing maps. The other definitions I had to draw were: Cardinal and Intermediate directions and oceans. Locator is the last one. I am totally stumped i have no clue