A 2.0 N weight trolley moves in the horizontal part of a chute without friction at a speed of 3.0 m / s. Classify the following statements as vendors or false, correcting these: a) The cart reaches a height h = 45 cm on the way up.

b) The kinetic energy variation of the cart, until it stops, is 0.90J.

c) The variation in the gravitational potential energy of the Cart + Earth system, until the cart stops, is 0.90 J.

d) The weight of the cart performs a work of 0.90 J from A to C.

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so easy. just google the electromagnetic waves and it’ll pop up.

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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