Answer:
Within-Subjects Experiments
Explanation:
Within-Subjects Designs: this is a form of experimental design in which the participants involved is exposed or subjected to all the conditions.
However, in this case, Alberto, is using Within-Subject Designs (simultaneous) by exposing all the participants to answer arithmetic problems while listening to metal, and then country, and finally classical music simultenously.
The multiple conditions here are: arithmetic problems to solve, listening to different types of music in a sequence that mixed the different types.
It is a Wedge because of its shape
Answer:
The End of the Revolutionary War
General Lord Cornwallis surrendering his sword and his army to General George Washington and the Continental and French armies after the final battle of the Revolutionary War on October 19, 1781 in Yorktown, Virginia.
Explanation:
