Suppose for a population P(t): the birth rate per person is proportional to P with proportionality constant \(k_1\); the death rate per person is constant and equal to 50. Write the ODE for \(dP/dt\).

The Progressive campaign for food and drug regulation illustrates which characteristic of the era’s reform movement?

The resurgence of nativism during the 1920s can best be understood as a response to which combination of factors?

The Great Migration during World War I is best understood as

The Espionage Act of 1917 and Sedition Act of 1918 illustrate which major issue raised by World War I?

Why did unrestricted German submarine warfare contribute significantly to the United States entering World War I?

What was the primary purpose of the immigration quota laws established during the 1920s?

Theodore Roosevelt’s “Big Stick” diplomacy reflected which broader change in American foreign policy?

Why was the construction of the Panama Canal strategically significant to the United States?  

Why did Progressive reformers often place considerable faith in experts and professional administrators?