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3 years ago

The true shape of planetary orbits was discovered by _____.

Physics

2 answers:

White raven [17]3 years ago

6 0

Kepler discovered the elliptical shape in the orbital path.<span />

Karo-lina-s [1.5K]3 years ago

6 0

Answer:

Johannes Kepler

Explanation:

Johannes Kepler was a 17th Century Astronomer and mathematician who gave the famous laws of planetary motion. The first law states that the planets move around the star in an elliptical orbit and not a circular orbit.

He worked as an assistant with Tycho Brahe, another great astronomer of that era and used data collected by him to formulate the laws of planetary motion. Although Brahe believed in Geocentric Theory of the Universe, it was Kepler who used his data to prove the Heliocentric Theory correct.

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You push on the top edge of a 1.8 m tall solid circular cylinder of iron which is 4.00 cm in diameter. You push with a horizonta

Citrus2011 [14]

Answer:

$\triangle x=3.2*10^-^5 m$

Explanation:

From the question we are told that

Height of circular cylinder is $h= 1.8m$

Diameter of cylinder $D=4cm=>0.04m$

Horizontal Force $F=900N$

$Y = 10.0 *10^1^0 N/m^2 \\B = 9.0 * 10^1^0 N/m^2\\S = 4.0 * 10^1^0 N/m^2\\$

Generally the formula for shear modulus is mathematically represented by

$G=\frac{\tau}{\gamma}$

Where

$G=Shear modulus\\\tau= shear\ stress\\\gamma=shear strain$

$G=\frac{F/A}{\triangle x/L}$

$G=\frac{900/\pi r^2}{\triangle x/1.8}$

$4.0*10^1^0=\frac{900/\pi r^2}{\triangle x/1.8}$

$4.0*10^1^0=\frac{900}{\pi r^2} *\frac{1.8}{\triangle x}$

${\triangle x} =\frac{1620}{\pi r^2* 4.0*10^1^0}$

$\triangle x=3.2*10^-^5 m$

5 0

3 years ago

In the context of variables and measurement scales, the magnitude of the differences between the numbers on the scale is meaning

olga2289 [7]

In the context of variables and measurement scales, the magnitude of the differences between the numbers on the scale is meaningful interval scale.

<h3>What is an interval scale?</h3>

It should be noted that an interval scale means a measurement where the difference between the variables is meaningful and equal.

In this case, in the context of variables and measurement scales, the magnitude of the differences between the numbers on the scale is meaningful interval scale.

Learn more about scale on:

brainly.com/question/16025911

#SPJ12

5 0

2 years ago

If a car used 260,000 W of power to complete a race in 15 s, how much work did the car do?

suter [353]

Answer: 3.9 MW

Explanation:

1 W = 1 J/s

260000 J/s (15 s) = 3,900,000 = 3.9 MW

3 0