All jovians have at least eight moons and equatorial rings
Indicate whether the statement is true or false
TRUE
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A car moves from the point (3.0 m)x + (5.0 m)y to the point (8.0 m)x - (7.0 m)y in 2.0 s. What is the direction of the average velocity of the car?
A) 67° from the x-axis B) -67° from the x-axis C) 33° from the x-axis D) -33° from the x-axis E) 52° from the x-axis
If a main sequence, giant, and a supergiant all have the same spectral class, what characteristic is known to make these stars different?
A. surface temperature B. color C. luminosity D. distance E. It shows that the more massive stars are cooler.
A 1200-kg cannon suddenly fires a cannonball at What is the recoil speed of the cannon? Assume that frictional forces are negligible and the cannon is fired horizontally
A) 2.9 m/s B) 35 m/s C) 3.5 m/s D) 3.2 m/s
Astronomers determine the internal structure of a star by using stellar models, since they cannot "see" into the interior of a star
a. True b. False Indicate whether the statement is true or false