Of the outer planets, ________ has the smallest diameter.
A. Saturn
B. Jupiter
C. Neptune
D. Uranus
E. Pluto
Answer: C
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When a cannon fires a cannonball at a given speed, the smaller recoil speed of the cannon is due to differences in
A) forces. B) times. C) masses. D) momenta.
The surface temperature of the star is 6000 K. At what wavelength is its light output a maximum? The constant in Wien's law is 0.00290 m ? K
A) 850 nm B) 907 nm C) 311 nm D) 483 nm E) 502 nm
A reflected ray of light leaves a plane mirror's surface at an angle of 30° relative to the normal. The angle of incidence was
a. 30° relative to the surface. b. 60° relative to the normal. c. 90° from the surface. d. none of these.
Two rectangular loops of wire lie in the same plane as shown in Figure OQ31.11. If the current I in the outer loop is counterclockwise and increases with time, what is true of the current induced in the inner loop? More than one statement may be correct
1.It is zero.
2.It is clockwise.
3.It is counterclockwise.
4.Its magnitude depends on the dimensions of the loops.
5.Its direction depends on the dimensions of the loops.