A roller coaster starting from rest descends 35 meters in its initial drop and then rises 23 meters when it goes over the first hill, which has a circular shape over the top
If a passenger at the top of the hill feels an apparent weight equal to one-half of her normal weight, what is the radius of curvature of the first hill? Neglect any frictional losses.
48 m
You might also like to view...
What was the Cambrian explosion?
A) the impact of the meteor that led to mass extinction of the dinosaurs B) the initial spark of lightning that created the first life-form from amino acids C) the eruption of the volcano known as Cambria on the ancient supercontinent of Pangaea D) a dramatic diversification of life that began about 540 million years ago E) the largest mass extinction in Earth's history
How many of the infinite number of Balmer spectrum lines are in the visible spectrum range?
A) none B) 2 C) 4 D) 6 E) infinite
Earth pulls on the Moon, and the Moon pulls on Earth, which tells us that
A) these two pulls comprise an action-reaction pair. B) both Earth and Moon circle a common point. C) more massive objects pull harder. D) all of the above
Current is the rate of flow of electric charge
Indicate whether the statement is true or false