If a proton is released at the equator and falls toward the Earth under the influence of gravity, the magnetic force on the proton will be toward the:
a. north.
b. south.
c. east.
d. west.
c
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For an infinite solid slab subjected to convective heat transfer, show that Equation 10-68 follows from Equation 10-67.
Consider the solar system as a “system” of particles. Which of the below qualify as internal interactions (A) and which as external interactions (E)?
(a) The contact interactions between the earth and a car moving on the earth’s surface (b) The gravitational interaction between the earth and the International Space Station (c) The gravitational interaction between two planets (d) The gravitational interaction between a given planet and the sun (e) The magnetic interaction between the sun and the earth (both have magnetic fields) (f) The gravitational interaction between the sun and the larger galaxy
As on Earth, continent-like land masses cover over a quarter of the surface of Venus
Indicate whether the statement is true or false
Relativistic effects are important
A. at high velocities B. at low velocities C. at all velocities