Alh 84001
a. is a meteorite that shows evidence for life evolving on Mars.
b. is the compound used by Miller to begin his experiment to produce amino acids.
c. is the amino acid produced in the Miller experiment.
d. is the molecule that controls the reproduction of DNA within a cell
e. is the molecule that acts as DNAs messenger that assembles proteins from amino acids.
A
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A Ping-Pong ball moving East at a speed of 4 m/s collides with a stationary bowling ball. The Ping-Pong ball bounces back to the West, and the bowling ball moves very slowly to the East
Which object experiences the greater magnitude impulse during the collision? A) Neither; both experienced the same magnitude impulse. B) It's impossible to tell since the velocities after the collision are unknown. C) the bowling ball D) the Ping-Pong ball
How does a permanent magnet work, i.e., what is the explanation of its magnetic effects?
A) Electric charge is permanently separated within the magnet, with positive static charge at one end and negative static charge at the other end of the magnet. B) Electrons orbiting individual atoms in the magnet are all aligned together so that their orbital motion produces a large overall effect. C) The material of the magnet is highly ionized, with one type of ion residing on one end of the magnet and the other type of ion residing on the other end. D) Subatomic particles known as "magnetic poles" are placed on each end of the magnet, with one type of pole placed on one end and the other type on the other end. E) Magnets are a communist plot.
In a grating experiment, light of 600 nm wavelength produces a first-order maximum 0.35 mm from the central maximum on a distant screen
On the same screen, a second monochromatic source produces a third-order maximum 0.87 mm from the central maximum when it passes through the same diffraction grating. What is the wavelength of the light from the second source?
A(n) ____ is a set of beliefs that appears to be based on scientific ideas, but which fails to obey the most basic rules of science
a. theory b. hypothesis c. pseudoscience d. allegory e. scientific model