The strongest force between the protons and
neutrons in the nucleus of an atom is the
a) gravitational force.
b) electromagnetic force.
c) nuclear force
d) centripetal force.
c
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A future news release might report that a new planet has been found around a star very similar to our sun. This newly discovered planet is claimed to have a mass 40 times that of Earth and is located nearly 25 AU from the star it orbits. Which of the following would be a reasonable prediction about this planet? I. The planet will probably have a mean density of around 5 g/cm3. II. The planet will
probably have a radius of around five to ten times greater than Earth's. III. The planet will probably have several satellites. IV. The planet will probably have a composition that is mostly hydrogen and helium. a. I & IV b. I, II, & III c. II, III, & IV d. I, II, & IV e. I, II, III, & IV
Outline the three steps to the solar nebular theory
What will be an ideal response?
What is meant by local average velocity?
What will be an ideal response?
A wire, 0.60 m in length, is carrying a current of 2.0 A and is placed at a certain angle with respect to the magnetic field of strength 0.30 T. If the wire experiences a force of 0.18 N,
what angle does the wire make with respect to the magnetic field? A) 20° B) 25° C) 30° D) 35° E) 60°