Examlex
Waves propagate at 6.8 m/s along a stretched string.The end of the string is vibrated up and down once every 2.5 s.What is the wavelength of the waves that travel along the string?
Slave Trade
The slave trade involves the historical capture, transportation, and sale of people as slaves, primarily seen in the transatlantic trade where Africans were forcibly taken to the Americas.
Tenochtitlán
The ancient Aztec capital city, established in 1325, located in what is now Mexico City, and known for its advanced infrastructure and significant cultural contributions.
Population
The total number of people or inhabitants in a designated area or the total number of individuals within a species.
Slave Ships
Vessels used during the transatlantic slave trade to transport enslaved Africans to the Americas, often under brutal and inhumane conditions.
Q5: A heat engine exhausts 4000 J of
Q17: Who demonstrated that when heat is gained
Q17: A spherical volume of space has an
Q21: The lowest A on a piano has
Q25: Waves propagate at 4.0 m/s along a
Q26: If two adjacent frequencies of an organ
Q41: A centrifuge rotates at 100 rev/s (i.e.
Q55: The resistance of a platinum wire is
Q69: A sound source of frequency 1,090 Hz
Q78: A metal bar is used to conduct