Physics, 09.10.2019 12:30 moneywiz2

Iknow what dark matter is, but what exactly is dark energy and what does it do?

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Physics, 22.06.2019 12:10, JN02

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.