A carnival Ferris wheel has a 15-m radius and completes five turns about its horizontal axis every minute. What is the acceleration of a passenger at his lowest point during the ride?
a. 5.7 m/s2 downward
b. 4.1 m/s2 upward
c. 14 m/s2 downward
d. 4.1 m/s2 downward
e. 19 m/s2 downward
b
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Helium fusion results in the production of
A) iron. B) nitrogen. C) carbon. D) oxygen. E) hydrogen.
A depression on the land surface caused by the collapse of a cavern is called a(n)______________
Fill in the blank(s) with correct word
Two plane mirrors make an angle of 50° with one another. A ray of light parallel to mirror #1 reflects off mirror #2 and then strikes mirror #1 . What is the angle of incidence the ray makes with mirror #1?
a. 50° c. 40° b. The answer is not given. d. 55°
An electron (m = 9.1 × 10^-31 kg) has a speed of 0.90 c. What is the difference between its relativistic momentum and its non-relativistic momentum (in kg m/s)?
a. 4.3 × 10^-22 b. 3.2 × 10^-22 c. 5.4 × 10^-22 d. 6.5 × 10^-22 e. 2.5 × 10^-22