A large massive rock is in contact with the earth. Draw a force diagram for the rock and the earth. Which of the following statements is true?
A. The gravitational force on the rock due to the earth and the gravitational force on the earth due to the rock are interaction partners.
B. The gravitational force on the rock due to the earth and the contact force on the earth due to the rock are interaction partners.
C. The contact force on the earth due to the rock and the gravitational force on the earth due to the rock are interaction partners.
D. The gravitational force on the earth due to the rock and the contact force on the earth due to the rock are interaction partners.
A. The gravitational force on the rock due to the earth and the gravitational force on the earth due to the rock are interaction partners.
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Fill in the blank(s) with the appropriate word(s).
Where does the asteroid belt lie?
a. between Mars and Jupiter b. between Uranus and Neptune c. between Neptune and Pluto d. beyond Neptune e. well beyond the orbits of the planets
A convex lens has a focal length f. An object is placed between infinity and 2f from the lens along a line perpendicular to the center of the lens. The image is located at what distance from the lens?
A) between the lens and f B) farther than 2f C) between f and 2f D) 2f E) f
An unstable particle produced in a high-energy collision is measured to have an energy of 483 MeV and an uncertainty in energy of 29 keV
Use the Heisenberg uncertainty principle to estimate the lifetime of this particle. (h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19)