Which of these planets is approximately the same size as Earth?
a. Venus
b. Mars
c. Saturn
d. Mercury
e. Pluto
a
You might also like to view...
Compared with the other jovian planets, Neptune is:
A) much larger and featureless. B) small with features similar to Jupiter. C) small and featureless. D) much larger with features similar to Saturn. E) average, but featureless.
Molecular Speeds: Dust particles in a grain elevator frequently have masses of the order of 1.0 × 10-9 kg. If, to a first approximation, we model the dust particles as an ideal gas, what would be the rms speed of such a particle in air at 27°C? The Boltzmann constant is 1.38 × 10-23 J/K.
A. 3.5 × 10-6 m/s B. 5.6 × 10-5 m/s C. 7.8 × 10-4 m/s D. 5.2 × 10-3 m/s E. 4.9 × 10-2 m/s
If Q = 350 ?C and I = 4.0 mA in the circuit segment shown below, determine the potential difference, VA ? VB
a.
?30 V
b.
+80 V
c.
+40 V
d.
?40 V
e.
+10 V
A baseball is struck by a batter at an angle such that it reaches its maximum height at the location of the pitcher – and just grazes the top of the pitcher’s head (at an elevation of 1.50 m above the launch point of the baseball). The pitcher is a horizontal distance of 20.0 m from the point at which the ball was struck. What was the launch angle for the baseball?
a. 
b. 
c. 
d. 
e. 
f. 