Physics, 29.07.2019 10:30, shealene7

How can dna be used to tell if two species are related?

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Physics, 21.06.2019 19:20, itzia00

How would you place two electrons on a sphere of radius r so that the electrostatic potential energy is minimized. how would you place three electrons to solve the same problem.

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Physics, 22.06.2019 12:00, P4thing

Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?

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Physics, 23.06.2019 08:30, janeou17xn

Amoving freight car collides with an identical one that is at rest. if momentum is conserved, what happens to the second car after the collision? it attains the same speed as the first car. it moves at half the speed of the first car. it moves at twice the speed of the first car.