November 27, 2015

Posts by charles

Total # Posts: 320

A piece of wood sinks in ethanol but floats in gasoline. Give a range of possible densities for the wood?
September 20, 2007

The density of water is 1.0 g/mL. How many deciliters of water will fill a 0.5-L bottle?
September 20, 2007

A shiny gold colored car of metal weighting 57.3g has a volumes of 4.7cm^3. Is the bar of metal pure gold?
September 20, 2007

would the density of a person be the same on the surface of earth and on the surface of the moon? explain?
September 20, 2007

social studues
what are the advantages and disadnavtages of using a globe to show earth surface
September 18, 2007

Choose four number from one to five, with reprtitions allowed, to creat the largest standard deviation possible.
September 17, 2007

Multiplying and Dividing Rational Expressions
May 16, 2007

Social Studies 4
Why was Churchill concerned about Soviet influence and control from Moscow?
April 18, 2007

Social Studies 3
What did Churchill mean when he said "iron curtain"? You need to start stating what YOU think the answers are for YOUR questions. Then the tutors here will be able to give you feedback and point you in the right direction if needed. =)
April 18, 2007

Social Studies 2
What were the closest non-Communist European countries to the Soviet Union? Finland had a long history of trade and cordial diplomatic relations with the Soviet Union. After 1984, France, Austria, the Federal Republic of Germany (West Germany), and Italy joined in. They began ...
April 18, 2007

Social Studies 1
Which countries separated the Soviet Union from Western Europe? The so-called Warsaw Pact countries. Use Google or anothe search engine for references that will provide their names.
April 18, 2007

Social Studies
During the cold war Era (1945-1990), the United states and the Soviet Union were reluctant to become involved in direct military conflict mainly because 1. the peacekeeping role of the united nations 2. pressure from nonaligned nations 3. the potential for global nuclear ...
April 18, 2007

Social Studies
>Blockade of Berlin >Operation of the Berlin Airlift >Organization of the Warsaw Pact >Construction of the Berlin Wall These events of the cold war are examples of 1. efforts to prevent military conflict between the superpowers 2. situations that increased tensions...
April 18, 2007

Physics - electricity
An incandescent lamp is marked '120v,75W' a)what is the current in the lamp under normal condition of operation? b)How much does it cost per hour to operate the lamp if the price of electrical energy is $6.00 per unit? Please stop posting under different names. Use ...
April 17, 2007

Plz help Physics-bobpursley
Bob, please confirm if I got this right and if not, please help to solve 1)A wire has a resistance of 10 ohm at 20 deg celsius and 13.1 ohm at 100 deg celsius. Obtain a value for its temperature coefficient of resistance. ans I got is this= using Rt = Ro (1 + alpha(T-To)) 13.1...
April 17, 2007

Please can you help out: 1)The Potential diff across the terminals of a battery is 8.5v when there is a current of 3amps in the cct from the -ve to the +ve terminal. When the current is 2amps in the reverse direction, the potential diff becomes 11volts. a) what is the internal...
April 17, 2007

Maths-Vectors Help!
Please can you help me as I have just been introduced to your Help Forum: Determine whether the vectors u, v and w given below are linearly independent or dependent where u, v and w are non-colliner vectors such that u=2a-3b+c , v=3a-5b+2c and w=4a-5b+c. thanks. Use exactly ...
April 16, 2007

qualities of persuasive business messages
January 15, 2007

the big idea of energy
help me with the big energy thing with mg
December 5, 2006

October 10, 2006

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