Acceleration due to gravity on the Moon is less than on Earth, and the Moon is smaller than Earth. This means that compared to an Earth satellite, a satellite in close orbit about the Moon would travel
A) slower.
B) faster.
C) the same.
D) need more information
Answer: A
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That light can undergo interference is evidence that it:
a. has electric properties. b. is made of corpuscles. c. behaves like a wave. d. has a phase of 180°.
According to the nuclear energy curve, would fusion or fission or neither release nuclear energy from gold [atomic number 79], and why?
A) Fission, because then the reaction products have higher atomic numbers and thus a higher nuclear energy. B) Fusion, because then the reaction product has a higher atomic number and thus a lower nuclear energy. C) Fission, because then the reaction products have lower atomic numbers and thus a lower nuclear energy. D) Neither, because all other elements have higher nuclear energies than carbon. E) Fusion, because then the reaction product has a lower atomic number and thus a higher nuclear energy.
Why is the food-for-oil tradeoff possible? Explain how availability or lack of availability of energy influences the agricultural system
What will be an ideal response?
Which of the following scenarios correctly demonstrates the transformation of mass into energy as given by Einstein's equation, E = mc2?
A) When hydrogen is fused into helium, whether in the Sun or in a nuclear bomb, the mass difference is turned into energy. B) An object accelerated to a great speed has a lot of kinetic energy. C) A mass raised to a great height has a lot of gravitational potential energy. D) When you boil a pot of water, it has a high heat content, or thermal energy. E) A burning piece of wood produces light and heat, therefore giving off radiative and thermal energy.