Physics, 28.06.2020 15:01 alissa3329
Why are objects that fall near Earth's surface rarely in free fall?
O Gravity does not act on objects near Earth's surface.
Air exerts forces on falling objects near Earth's surface.
The objects do not reach terminal velocity
O The objects can be pushed upward by gravity.
Answers: 3
Physics, 22.06.2019 02:00
What is created when solids,liquids,an gases mix with one another
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1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving
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Physics, 22.06.2019 12:30
Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.
Answers: 1
Why are objects that fall near Earth's surface rarely in free fall?
O Gravity does not act on objec...
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