3 years ago

Who was the first person referred to as a psychologist?

Physics

1 answer:

musickatia [10]3 years ago

3 0

Answer:

Wilhelm Wundt

Explanation:

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Answer:

Mathematically:

That will be

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2 years ago

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How much work must be done to bring three electrons from a great distance apart to 5.0×10^−10 m from one another (at the corners

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Answer:

1.38 x 10^-18 J

Explanation:

q = - 1.6 x 10^-19 C

d = 5 x 10^-10 m

the potential energy of the system gives the value of work done

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So, the total potential energy of teh system is

$U =\frac{Kq_{1}q_{2}}{d}+\frac{Kq_{2}q_{3}}{d}+\frac{Kq_{1}q_{3}}{d}$

As all the charges are same and the distance between the two charges is same so the total potential energy becomes

$U =3\times \frac{Kq^{2}}{d}$

K = 9 x 10^9 Nm^2/C^2

By substituting the values

$U =3\times \frac{9\times 10^{9}\times \ 1.6 \times 1.6 \times 10^{-38}}{5\times 10^{-10}}$

U = 1.38 x 10^-18 J

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3 years ago

A ball has a kinetic energy of 106 J. If the ball is moving at a velocity of 2.01 m/s, what is the mass of the ball, in kilogram

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Answer:

Explanation:

KE= ½mv²

m = 2KE/v²

m = 2(106)/2.01²

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