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On January 4, 1903, Thomas Edison performed a shocking demonstration at Luna Park, Coney Island. It was an attempt to prove the deadliness of alternating current, backed by Edison’s competitors George Westinghouse and Nikola Tesla.
Edison himself was looking to preserve the use of direct current, and jumped at any opportunity to discredit his competition.
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Answer:
The main reason why people left Italy and traveled to America was poverty brought about by unemployment. The dream of earning enough money to return to Italy and buy lands was a great motivator. The journey of 3,000 miles by ship took almost 3 months. They had to pass through the Ellis Island Immigration Center for mental and physical examinations. After the mental and physical examinations, the migrants were sent to a room where they had to answer 32 questions to establish whether they could enter America. Failure in the examinations would mean separation from their families and deportation back to Italy.
Na/K concentration in and out of the cell at the homeostatic level. It does this by pumping sodium and potassium ions in and out when it's needed of it in order to maintain the concentration of both ions stable across time.
Answer:
The pressure this object exerts on the surface is 5lb/in² or 5psi.
Explanation:
Pressure is force per unit area.
Mathematically, pressure is given by the formula;
Given the following data;
Force = 10lb
Area = 2in²
Substituting into the equation, we have;
Pressure = 5lb/in² or 5psi
<em>Hence, the pressure this object exerts on the surface is 5lb/in² or 5psi. </em>
