If your average speed for a 6 hr trip is 60 mi/hr, the distance traveled is
A. 60 mi.
B. 120 mi.
C. 360 mi.
D. 10 mi.
Answer: C
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A 2.0-kg object moving with a velocity of 5.0 m/s in the positive x direction strikes and sticks to a 3.0-kg object moving with a speed of 2.0 m/s in the same direction. How much kinetic energy is lost in this collision?
a. 2.4 J b. 9.6 J c. 5.4 J d. 0.6 J e. 6.0 J
Two particles (m1 = 0.20 kg, m2 = 0.30 kg) are positioned at the ends of a 2.0-m long rod of negligible mass. What is the rotational inertia of this rigid body about an axis perpendicular to the rod and through the center of mass?
A. 0.48 kg?m2 B. 0.50 kg?m2 C. 1.2 kg?m2 D. 0.80 kg?m2 E. 0.70 kg?m2
Describe two general ways we learn about the Sun's interior
What will be an ideal response?
Shapley found the globular cluster distribution equally concentrated all along the galactic plane
Indicate whether the statement is true or false