The explosion in a cannon exerts an average force of 30,000 N for 2.00 meters. The velocity of a 2.00 kg projectile shot from the cannon is
A. 198 m/s.
B. 245 m/s.
C. 302 m/s.
D. 354 m/s.
E. 412 m/s.
B. 245 m/s.
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What becomes of the heavy elements produced by fusion in low-mass stars?
A. When the star goes supernova, they are sucked into the neutron star or black hole. B. They are blasted outward in a violent explosion. C. At the end of the star's life, they are dredged up by convection and pushed outward by photons. D. They are forever trapped in the core of the star. E. Low-mass stars do not produce heavy elements.
Vector = 6.0 m and points 30° north of east. Vector = 4.0 m and points 30° south of west. The resultant vector + is given by
A) 2.0 m at an angle 30° north of east. B) 2.0 m at an angle 60° north of east. C) 10.0 m at an angle 60° east of north. D) 10.0 m at an angle 30° north of east. E) 10.0 m at an angle 60° north of east.
At temperatures below their boiling point, liquids gradually go into the gas phase through a process called
Olympus Mons, the largest known volcano in the solar system, is found on ________.
A) Earth B) Venus C) Jupiter D) Mars