Which of the following gives direct information about the age of the solar system?
A) Martian meteorites
B) meteorites from asteroidal debris
C) the solar wind
D) the oldest Martian basalts
E) the oldest lunar basalts
B
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Three resistors with values of R1, R2 and R3, respectively, are connected in series. Which of the following expresses the total resistance, RT, of the three resistors?
a. RT = R1 + R2 + R3 b. RT = (1/R1 + 1/R2 + 1/R3) c. RT = R1 = R2 = R3 d. RT = (1/R1 + 1/R2 + 1/R3)?1
The equation of motion of a particle undergoing simple harmonic motion is y = 2.0 sin(0.60t), where y is in cm. At t = 0.60 s determine the particle's:
(a) displacement. (b) velocity. (c) acceleration.
Process of Science: Climate models can match the historical record of the global temperature on Earth and conclude that human's increase of atmospheric CO2 is responsible for global warming. How might you test this conclusion?
What will be an ideal response?
A potter's wheel, with rotational inertia 46 kg • m2, is spinning freely at 40 rpm. The potter drops a lump of clay onto the wheel, where it sticks a distance 1.2 m from the rotational axis
If the subsequent angular speed of the wheel and clay is 32 rpm what is the mass of the clay? A) 8.0 kg B) 5.4 kg C) 7.0 kg D) 8.8 kg