Energy Conservation With Conservative Forces: If a spring-operated gun can shoot a pellet to a maximum height of 100 m on Earth, how high could the pellet rise if fired on the Moon, where g = 1.6 m/s2?
A. 17 m
B. 160 m
C. 3.6 km
D. 100 m
E. 610 m
Answer: E
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Constant Acceleration Kinematics: Assuming equal rates of uniform acceleration in both cases, how much further would you travel if braking from 56 mi/h to rest than from 28 mi/h?
A. 4 times farther B. 3.2 times farther C. 4.8 times farther D. 5.2 times farther
Jacques and George meet in the middle of a lake while paddling in their canoes. They come to a complete stop and talk for a while. When they are ready to leave, Jacques pushes George's canoe with a force to separate the two canoes
What is correct to say about the final momentum and kinetic energy of the system if we can neglect any resistance due to the water? A) The final momentum is in the direction of but the final kinetic energy is zero. B) The final momentum is in the direction opposite of but the final kinetic energy is zero. C) The final momentum is in the direction of and the final kinetic energy is positive. D) The final momentum is zero and the final kinetic energy is zero. E) The final momentum is zero but the final kinetic energy is positive.
The Drake Equation seeks to estimate the number of technological civilizations in the galaxy
Indicate whether the statement is true or false
A meniscus lens is made with the radius of curvature of the convex surface being 25.0 cm and the concave surface 45.0 cm. If the glass used has index of refraction 1.50, what is the focal length of this lens?
A) -32 cm B) 32 cm C) 113 cm D) 67.5 cm E) -113 cm