When scrap iron in a boat is thrown overboard in a swimming pool, the pool level
A) rises.
B) falls.
C) remains unchanged.
Answer: B
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Changing the direction of a moving body does not impact its velocity
a. True b. False Indicate whether the statement is true or false
The acceleration of the Universe depends on the effect of ____
a. baryonic matter being greater than the effects of dark matter and dark energy b. baryonic matter and dark energy being greater than the effect of dark matter. c. dark matter and dark energy being greater than the effect of baryonic matter. d. baryonic matter and dark matter being greater than the effect of dark energy. e. dark matter being greater than the effect of dark energy.
Energy flows by radiation or convection inside stars but almost never by conduction
a. True b. False Indicate whether the statement is true or false
Which of the following statements about Titan is not true?
A) It is the coldest moon in the solar system. B) It may have an ocean of liquid ethane. C) Its surface is hidden from view by its thick atmosphere. D) Its temperature is too cold for liquid water to exist. E) Its atmosphere is mostly nitrogen.