Answer:
Rail squeal is a screeching train-track friction sound, commonly occurring on sharp curves. Squeal is presumably caused by the lateral sticking and slipping of the wheels across top of the railroad track. This results in vibrations in the wheel that increase until a stable amplitude is reached.
Explanation:
The Great Wall was successful at keeping invaders out, but it was a costly project to build. B. The emperor's advisors refused to build.
1. the first BLM protest was in 2013 a majority of americans support the movement the hashtag has been tweeted million and million of times daily the most its been used. The demands of protesters have led to police chiefs resigning, Confederate statues being toppled, and city councils passing groundbreaking police reform, all at a rate not seen in the last seven years.
2. george flyod was an African American man killed during an arrest after a store clerk alleged he had passed a counterfeit $20 bill in Minneapolis. A white police officer named Derek Chauvin knelt on Floyd's neck for a period initially reported to be 8 minutes and 46 seconds.
he lived in Fayetteville, North Carolina