In a nuclear physics experiment, a proton (mass 1.67×10−27kg, charge +e=+1.60×10−19C) is fired directly at a target nucleus of unknown charge. (You can treat both objects as point charges, and assume that the nucleus remains at rest.) When it is far from its target, the proton has speed 2.50×106m/s. The proton comes momentarily to rest at a distance 5.29×10−13m from the center of the target nucleus, then flies back in the direction from which it came. What is the electric potential energy of the proton and nucleus when they are 5.29×10−13m apart?

the answer is d. 4

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as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

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d. platinum would have the greatest temperature increase because it has the lowest specific heat.

there are no atoms