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larisa86 [58]
2 years ago
5

Kepler’s laws of planetary motion describe each of the three laws

Physics
1 answer:
MaRussiya [10]2 years ago
6 0

Kepler's laws laid the foundation for the early study of astronomy.

Kepler was one of the earliest astronomers that contributed immensely to the study of the planets. The Kepler's laws of planetary motion are as follows;

  • The planets each travel along an ellipse with the sun at one focus.
  • The line joining the sun and the planets sweeps out equal areas in equal time intervals.
  • The square of the period of the revolution of the planets equals the cube of the planet's mean distance from the sun.

Learn more about Kepler's laws; brainly.com/question/1017661

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He has 54 cds and every box has 9 cds.how many boxes are in 54 cds?
Gemiola [76]

Solution:
54 / 9 = 6 boxes.
6 0
3 years ago
A cubical box measuring 1.29 m on each side contains a monatomic ideal gas at a pressure of 2.0 atm How much thermal energy do t
Marrrta [24]

Answer:

a) U = 652.545\,kJ, b) v \approx 659.568\,\frac{m}{s}

Explanation:

a) According to the First Law of Thermodinamics, the system is not reporting any work, mass or heat interactions. Besides, let consider that such box is rigid and, therefore, heat contained inside is the consequence of internal energy.

Q = U

The internal energy for a monoatomic ideal gas is:

U = \frac{3}{2} \cdot n \cdot R_{u} \cdot T

Let assume that cubical box contains just one kilomole of monoatomic gas. Then, the temperature is determined from the Equation of State for Ideal Gases:

T = \frac{P\cdot V}{n\cdot R_{u}}

T = \frac{(202.65\,kPa)\cdot(1.29\,m)^{3}}{(1\,kmole)\cdot(8.314\,\frac{kPa\cdot m^{3}}{kmole\cdot K} )}

T = 52.325\,K

The thermal energy contained by the gas is:

U = \frac{3}{2}\cdot (1\,kmole)\cdot (8.314\,\frac{kPa\cdot m^{3}}{kmole\cdot K})\cdot (52.325\,K)

U = 652.545\,kJ

b) The physical model for the cat is constructed from Work-Energy Theorem:

U = \frac{1}{2}\cdot m_{cat} \cdot v^{2}

The speed of the cat is obtained by isolating the respective variable and the replacement of every known variable by numerical values:

v = \sqrt{\frac{2 \cdot U}{m_{cat}}}

v = \sqrt{\frac{2\cdot (652.545 \times 10^{3}\,J)}{3\,kg} }

v \approx 659.568\,\frac{m}{s}

3 0
2 years ago
As the distance from a charged particle, "q", increases, what happens to the electric potential?
mr Goodwill [35]

As the distance from a charged particle, "q", increases, the electric potential decreases.

<h3>Electric potential between particles</h3>

The electric potential between particles is the work done in moving a unit charge from infinity to a certain point against the electrical resistance of the field.

V = Kq/r

where;

  • K is Coulomb's constant
  • q is the magnitude of the charge
  • r is the distance between the charges

Thus, from the formula above, as the distance from a charged particle, "q", increases, the electric potential decreases.

Learn more about electric potential here: brainly.com/question/14306881

#SPJ1

6 0
1 year ago
Fill in the blank .Technically color consists of electromagnetic _____
8_murik_8 [283]
Electromagnetic radiation
5 0
3 years ago
Can a jail legally not give you food or water for 4 days
maks197457 [2]
Yes but they not supposed to
4 0
3 years ago
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