Saturn's atmosphere
a. has more distinctive zones and belts than Jupiter's.
b. is rich in free oxygen.
c. is hazy above the clouds.
d. has more distinctive zones and belts than Jupiter's, is rich in free oxygen, and is hazy above the clouds.
e. does not have more distinctive zones and belts than Jupiter's, is not rich in free oxygen, and is not hazy above the clouds.
c
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As the solar nebula contracts due to gravitation, the cloud:
A) spins faster. B) expands. C) becomes more spherical in shape. D) changes direction of motion. E) begins to cool.
An alpha particle (m = 6.7 × 10^?27 kg, q = +3.2 × 10^?19 C) has a speed of 20 km/s at point A and moves to point B where it momentarily stops. Only electric forces act on the particle during this motion. Determine the electric potential difference VA ? VB
a. +4.2 V b. ?4.2 V c. ?9.4 V d. +9.4 V e. ?8.4 V
If the thermal contact resistance between a clutch surface and a driving surface is 0.0023 m^2 -0C/W, estimate the temperature drop across the contacting surfaces, per unit area when 200 W/m^2 of heat is desired to be dissipated.
What will be an ideal response?
The size of the gravitational force that Earth exerts on the Moon is ____ that the Moon exerts on Earth.
A. greater than B. the same as C. smaller than