The basic idea of the "string" hypothesis is that the fundamental particles are
A) very tiny hollow spheres.
B) tiny loops of infinitely slender material.
C) just geometric points (infinitely tiny points).
D) made of chocolate fudge.
E) infinitely long and infinitely slender objects.
B
You might also like to view...
A projectile is shot horizontally at 23.4 m/s from the roof of a building 55 m tall and experiences negligible air resistance
(a) Determine the time necessary for the projectile to reach the ground below. (b) Determine the distance from the base of the building that the projectile lands. (c) Determine the horizontal and vertical components of the velocity just before the projectile reaches the ground.
A mirror with a focal length 20 cm has a 4.0 cm tall object placed 100 cm in front of it. What is the height of the image?
A) 1.0 cm B) 1.6 cm C) -16 cm D) -1.0 cm E) 16 cm
The radioactivity due to carbon-14 measured in a piece of a wood from an ancient site was found to produce 20 counts per minute from a given sample, whereas the same amount of carbon from a piece of living wood produced 160 counts per minute
The half-life of carbon-14, a beta emitter, is 5730 y. The age of the artifact is closest to A) 5700 y. B) 12,000 y. C) 15,000 y. D) 17,000 y. E) 23,000 y.
The mean distance between the Earth and Sun is called
A) the astronomical unit. B) the parsec. C) the Kepler. D) the megameter. E) the light-year.