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A hot air balloon is rising at a speed of 10 km/hr. One hour later, the balloon is still rising at 10 km/hr. What is its acceleration?
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Examine the equation. 23490th→23088ra+42he what kind of barrier would you need to block the radioactive particles from this reaction? a.a piece of paper b.a sheet of aluminum foil c. a two-inch block of lead d. a solid concrete block
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Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.
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A hot air balloon is rising at a speed of 10 km/hr. One hour later, the balloon
is still rising at...
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