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kakasveta [241]
4 years ago
11

What are the historical solar system models. Differences

Physics
1 answer:
Rasek [7]4 years ago
7 0
Aristarchus(310-230 BC)
Aristarchus was a Greek Astronomer and Mathematician. He proposed the heliocentric model of the Solar System. He attempted to measure the distances from the moon to the sun.
Aristotle (334-322 BC)
<span>Aristotle was a Greek Philosopher. He was the first person to propose this historical model. He thought the Earth was in the center of all celestial beings. His idea was that the Earth was in the middle of the sun, moon, stars, and other planets. </span>
Ptolemy(100-170 CE)
<span>Ptolemy was a astronomer and a geographer and a mathematician! He proposed the geocentric model. He believed that a celestial body could go at a constant speed in a perfect circle. It was called the "wheels-on-wheels" system. It had better observations than the model that had came before his. His geocentric model was used for the next 14 centuries! </span>
Kepler(1571-1630)
<span>German astronomer and mathematician, Johannes Kepler, studied very hard and closely, and he found out that the planets did not fit the observations that were made by previous explorers. He found one that fit the best out of them all! He found three principles, called Kepler's Laws. </span>
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Suppose you increase your walking speed from 6s to 12 m/s in a period of 2 s. What is acceleration
ElenaW [278]

As we know that acceleration is given as

a = \frac{v_f - v_i}{t}

here we know that

v_i = 6 m/s

v_f = 12 m/s

\Delta t = 2 s

now we will have

a = \frac{12 - 6}{2}

a = 3 m/s^2

so acceleration will be 3 m/s^2

5 0
3 years ago
Which of the following states that all matter tends to "warp" space in its vicinity and that objects react to this warping by ch
Kruka [31]
Einstein's theory of General Relativity states that space-time is able to be warped in the presence of mass or energy.  This warping is what "tells" matter how to move in its presence.  In the paraphrased words of physicist John Wheeler, matter tells space-time how to warp, and warped space-time tells matter how to move.
5 0
3 years ago
Object 1 has a mass of 3m and is moving to the right at a velocity of
andrew11 [14]

Answer:

In a collision, the velocity change is always computed by subtracting the initial velocity value from the final velocity value. If an object is moving in one direction before a collision and rebounds or somehow changes direction, then its velocity after the collision has the opposite direction as before.

6 0
3 years ago
Two charged concentric spherical shells have radii 8.83 cm and 15.4 cm. The charge on the inner shell is 5.03 × 10⁻⁸ C and that
REY [17]

Answer:

a. E(r) = 3.67 x 10⁴ N/C

b. E(r) = 5.38 x 10⁴ N/C

Explanation:

r1 = 8.83 cm

r2 = 15.4 cm

Charge on the inner shell = 5.03 x 10^-⁸ C

Charge on the outer shell = 2.77 x 10^-⁸ C

a)   To find the electric field at r = 11.1 cm,

r₁ = 8.83 cm < r = 11.1 cm < r₂ = 15.4 cm

E(r) = <u>1              </u> <u>q₁    </u>

          4\pi∈₀        r₂  

E(r) = <u>( 8.99 x 10⁹ N.m²/C² )  ( 5.03 x 10⁻⁸)</u>

                                 (0.111m)²

E(r) = 3.67 x 10⁴ N/C

b)   To find the electric field at r = 36.1 cm

since r₁  < r₂ < r = 36.1 cm

E(r) = <u>1              </u> <u>q₁  ₊  q₂   </u>

          4\pi∈₀           r₂  

E(r) = <u>( 8.99 x 10⁹ N.m²/C² )  ( 5.03 + 2.77 )(1 x 10⁻⁸)</u>

                                             (0.361m)²

E(r) = 5.38 x 10⁴ N/C

3 0
4 years ago
In chemical reactions, energy is absorbed or released in the form of:
dsp73

Answer:

all chemical reaction involved in early enough energy used to break bonds in reactants and energy released when you want from product

Edith a remake reaction absorb energy and epidemic reaction release energy flow of conversion of energy states that matter cannot be created or destroyed .

6 0
3 years ago
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