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Image (a) shows a 1780 British map of Charleston with details of the locations of Continental forces. A portrait of General Nathanael Greene is shown in image (b).
This 1780 map of Charleston (a), which shows details of the Continental defenses, was probably drawn by British engineers in anticipation of the attack on the city. The Siege of Charleston was one of a series of defeats for the Continental forces in the South, which led the Continental Congress to place General Nathanael Greene (b), shown here in a 1783 portrait by Charles Wilson Peale, in command in late 1780. Greene led his troops to two crucial victories.

The disaster at Charleston led the Continental Congress to change leadership by placing General Horatio Gates in charge of American forces in the South. However, General Gates fared no better than General Lincoln; at the Battle of Camden, South Carolina, in August 1780, Cornwallis forced General Gates to retreat into North Carolina. Camden was one of the worst disasters suffered by American armies during the entire Revolutionary War. Congress again changed military leadership, this time by placing General Nathanael Greene ( [link] ) in command in December 1780.

As the British had hoped, large numbers of Loyalists helped ensure the success of the southern strategy, and thousands of slaves seeking freedom arrived to aid Cornwallis’s army. However, the war turned in the Americans’ favor in 1781. General Greene realized that to defeat Cornwallis, he did not have to win a single battle. So long as he remained in the field, he could continue to destroy isolated British forces. Greene therefore made a strategic decision to divide his own troops to wage war—and the strategy worked. American forces under General Daniel Morgan decisively beat the British at the Battle of Cowpens in South Carolina. General Cornwallis now abandoned his strategy of defeating the backcountry rebels in South Carolina. Determined to destroy Greene’s army, he gave chase as Greene strategically retreated north into North Carolina. At the Battle of Guilford Courthouse in March 1781, the British prevailed on the battlefield but suffered extensive losses, an outcome that paralleled the Battle of Bunker Hill nearly six years earlier in June 1775.

Yorktown

In the summer of 1781, Cornwallis moved his army to Yorktown    , Virginia. He expected the Royal Navy to transport his army to New York, where he thought he would join General Sir Henry Clinton. Yorktown was a tobacco port on a peninsula, and Cornwallis believed the British navy would be able to keep the coast clear of rebel ships. Sensing an opportunity, a combined French and American force of sixteen thousand men swarmed the peninsula in September 1781. Washington raced south with his forces, now a disciplined army, as did the Marquis de Lafayette and the Comte de Rochambeau with their French troops. The French Admiral de Grasse sailed his naval force into Chesapeake Bay, preventing Lord Cornwallis from taking a seaward escape route.

In October 1781, the American forces began the battle for Yorktown, and after a siege that lasted eight days, Lord Cornwallis capitulated on October 19 ( [link] ). Tradition says that during the surrender of his troops, the British band played “The World Turned Upside Down,” a song that befitted the Empire’s unexpected reversal of fortune.

Questions & Answers

Three charges q_{1}=+3\mu C, q_{2}=+6\mu C and q_{3}=+8\mu C are located at (2,0)m (0,0)m and (0,3) coordinates respectively. Find the magnitude and direction acted upon q_{2} by the two other charges.Draw the correct graphical illustration of the problem above showing the direction of all forces.
Kate Reply
To solve this problem, we need to first find the net force acting on charge q_{2}. The magnitude of the force exerted by q_{1} on q_{2} is given by F=\frac{kq_{1}q_{2}}{r^{2}} where k is the Coulomb constant, q_{1} and q_{2} are the charges of the particles, and r is the distance between them.
Muhammed
What is the direction and net electric force on q_{1}= 5µC located at (0,4)r due to charges q_{2}=7mu located at (0,0)m and q_{3}=3\mu C located at (4,0)m?
Kate Reply
what is the change in momentum of a body?
Eunice Reply
what is a capacitor?
Raymond Reply
Capacitor is a separation of opposite charges using an insulator of very small dimension between them. Capacitor is used for allowing an AC (alternating current) to pass while a DC (direct current) is blocked.
Gautam
A motor travelling at 72km/m on sighting a stop sign applying the breaks such that under constant deaccelerate in the meters of 50 metres what is the magnitude of the accelerate
Maria Reply
please solve
Sharon
8m/s²
Aishat
What is Thermodynamics
Muordit
velocity can be 72 km/h in question. 72 km/h=20 m/s, v^2=2.a.x , 20^2=2.a.50, a=4 m/s^2.
Mehmet
A boat travels due east at a speed of 40meter per seconds across a river flowing due south at 30meter per seconds. what is the resultant speed of the boat
Saheed Reply
50 m/s due south east
Someone
which has a higher temperature, 1cup of boiling water or 1teapot of boiling water which can transfer more heat 1cup of boiling water or 1 teapot of boiling water explain your . answer
Ramon Reply
I believe temperature being an intensive property does not change for any amount of boiling water whereas heat being an extensive property changes with amount/size of the system.
Someone
Scratch that
Someone
temperature for any amount of water to boil at ntp is 100⁰C (it is a state function and and intensive property) and it depends both will give same amount of heat because the surface available for heat transfer is greater in case of the kettle as well as the heat stored in it but if you talk.....
Someone
about the amount of heat stored in the system then in that case since the mass of water in the kettle is greater so more energy is required to raise the temperature b/c more molecules of water are present in the kettle
Someone
definitely of physics
Haryormhidey Reply
how many start and codon
Esrael Reply
what is field
Felix Reply
physics, biology and chemistry this is my Field
ALIYU
field is a region of space under the influence of some physical properties
Collete
what is ogarnic chemistry
WISDOM Reply
determine the slope giving that 3y+ 2x-14=0
WISDOM
Another formula for Acceleration
Belty Reply
a=v/t. a=f/m a
IHUMA
innocent
Adah
pratica A on solution of hydro chloric acid,B is a solution containing 0.5000 mole ofsodium chlorid per dm³,put A in the burret and titrate 20.00 or 25.00cm³ portion of B using melting orange as the indicator. record the deside of your burret tabulate the burret reading and calculate the average volume of acid used?
Nassze Reply
how do lnternal energy measures
Esrael
Two bodies attract each other electrically. Do they both have to be charged? Answer the same question if the bodies repel one another.
JALLAH Reply
No. According to Isac Newtons law. this two bodies maybe you and the wall beside you. Attracting depends on the mass och each body and distance between them.
Dlovan
Are you really asking if two bodies have to be charged to be influenced by Coulombs Law?
Robert
like charges repel while unlike charges atttact
Raymond
What is specific heat capacity
Destiny Reply
Specific heat capacity is a measure of the amount of energy required to raise the temperature of a substance by one degree Celsius (or Kelvin). It is measured in Joules per kilogram per degree Celsius (J/kg°C).
AI-Robot
specific heat capacity is the amount of energy needed to raise the temperature of a substance by one degree Celsius or kelvin
ROKEEB
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Source:  OpenStax, U.s. history. OpenStax CNX. Jan 12, 2015 Download for free at http://legacy.cnx.org/content/col11740/1.3
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