What is acceleration if a 28 Newton force is acting on a 4kg object? O 7,0 m/s2
0 112 m/s
32 m/s2
O 24 m/s2
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For a particular reaction, ? h = -144.6 kj and ? s = -301.2 j/k. calculate ? g for this reaction at 298 k.

The solar panels used by mark function because of the photoelectric effect. light shines on the cells causing electrons to be ejected from the metal, which produces an electric current. at night on mars, no light will fall on the solar cells and no electric current will be generated. according to your notes, what type of light is typically needed to cause the photoelectric effect? a)visible b)ultraviolet c)infrared

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)