3 years ago

Which best describes the differences between how Ptolemy and Copernicus described the solar system?

Physics

1 answer:

Burka [1]3 years ago

8 0

D: Ptolemy envisioned a geocentric model, while Copernicus envisioned a heliocentric model.

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Are the units of the formula ma = mv2/2 dimensionally consistent? Select the single best answer.

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To solve the problem we will simply perform equivalence between both expressions. We will proceed to place your units and develop your internal operations in case there is any. From there we will compare and look at its consistency

$ma = \text{Mass}\times \text{Acceleration}$

$ma = kg \cdot \frac{m}{s^2}$

At the same time we have that

$\frac{1}{2}mv^2 = \text{Mass}\times \text{Velocity}^2$

$\frac{1}{2}mv^2 = kg ( \frac{m}{s})^2$

$\frac{1}{2}mv^2 = kg \cdot \frac{m^2}{s^2}$

Therefore there is not have same units and both are not consistent and the correct answer is B.

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