A ball thrown vertically from ground level is caught 3.0 s later when it is at its highest point by a person on a balcony which is 14 m above the ground. Determine the initial speed of the ball
a. 19 m/s
b. 4.7 m/s
c. 10 m/s
d. 34 m/s
e. 17 m/s
a
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What is the CNO cycle?
A) the process by which helium is fused into carbon, nitrogen, and oxygen B) the process by which carbon is fused into nitrogen and oxygen C) the set of fusion reactions that have produced all the carbon, nitrogen, and oxygen in the universe D) a set of steps by which four hydrogen nuclei fuse into one helium nucleus
Angular and Linear Quantities: A bowling ball of mass 7.5 kg and diameter 18 cm rolls without slipping down a 10-m bowling lane with a constant speed 4.3 m/s.(a) Through what angle does the bowling ball turn as it travels the length of the lane?(b) What is the angular speed of the bowling ball?(c) Calculate the maximum radial acceleration that a point on the surface of the bowling ball could have.(d) Calculate the tangential acceleration of a point on the surface of the bowling ball.
What will be an ideal response?
Snell's Law: A beam of light traveling in air strikes a slab of transparent material. The incident beam makes an angle of 40° with the normal, and the refracted beam make an angle of 26° with the normal. What is the speed of light in the transparent material? (c = 3.0 × 108 m/s)
A. 1.0 × 108 m/s B. 2.0 × 108 m/s C. 2.3 × 108 m/s D. 3.0 × 108 m/s E. 0.50 × 108 m/s
To help determine the age of rock layers over a large area we can use the principle of
A) original horizontality. B) lateral continuity. C) superposition. D) fossil assemblage.