The density of an object determines whether it will float or sink in another substance. An object will float if it is less dense than the liquid it is placed in. An object will sink if it is more dense than the liquid it is placed in.
So since the boat has a lower density than the water, it will float.
So the answer is choice B
It doesn't mean that the climate is changing, it is probably just the morning dew.
Acceleration(a) is the change in velocity(Δv) over the change in time(Δt). so just divide your velocity and time.
Answer:
c and d
Explanation:
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A heat engine would be less efficient due to many factors
For instance, a heat engine is more efficient when it uses in cold weather because there is a greater temperature difference ( Carnot Efficient )
A heat engine could be less efficient because of friction
Hope it helps I am a beginner
