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3 years ago

the first law of thermodynamics states that (triangle)E= Q-W. is this also a statement of the principle of conservation energy

1 answer:

7 0

Yes, the first law of thermodynamics was created using the law of conservation of energy that is applied in a thermodynamic systems.the first law of thermodynamics is the change in internal energy of an isolated system is equal to the amount of heat (Q) added to the system minus the work (w) done by the system to the surroundings . while the law of conservation of energy states that in an isolated system that energy is constant, and energy can change its form but it cannot be created or destroyed.

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It is observed that the number of asteroids (or meteoroids) of a given diameter is roughly inversely proportional to the square

MaRussiya [10]

Answer:

(a) M = =1.57 *10²¹kg

(b) M = =1.57 *10²⁰kg

(d) M = =1.57 *10¹⁸kg

Explanation:

(a) For 1000km body, diameter D = 1000km = 1,000,000 m

and N = (1000/D)² = (1000/1000km)² = 1

substituting into the formula, we have

M = 1 * 4/3 π*3000*[1000000/2]³

=1.57 *10²¹kg

(b) For 100km body, diameter D = 100km = 100,000 m

and N = (1000/D)² = (1000/100km)² = 100

substituting into the formula, we have

M = 1 * 4/3 π*3000*[100000/2]³

=1.57 *10²⁰kg

and N = (1000/D)² = (1000/10km)² = 100

substituting into the formula, we have

M = 1 * 4/3 π*3000*[10000/2]³

=1.57 *10¹⁹kg

and N = (1000/D)² = (1000/1km)² = 100

substituting into the formula, we have

M = 1 * 4/3 π*3000*[1000/2]³

=1.57 *10¹⁸kg

4 0

2 years ago

Uses of hydrometer in points

Arisa [49]

Answer:

A hydrometer is an instrument used to determine specific gravity. It operates based on the Archimedes principle that a solid body displaces its own weight within a liquid in which it floats. Hydrometers can be divided into two general classes: liquids heavier than water and liquids lighter than water

7 0

2 years ago

What does it mean when the orbital eccentricity of a planet is close to 1?

ankoles [38]

We have that Zero signifies a perfect circle shape and 1 shows it maximum out of order shape.

From the question we are told

What does it mean when the orbital eccentricity of a planet is close to 1

Generally

Eccentricity

This in its simplest definition means to be eccentric which means to be a bit out of order or for the given subject at hand means to be a bit out of shape

Naturally the Eccentricity that an object possess is defined by two number 0(zero) to 1(one)

Where

Zero signifies a perfect circle shape and 1 shows it maximum out of order shape

For more information on this visit

brainly.com/question/17208989?referrer=searchResults

7 0

3 years ago

Read 2 more answers

What is the primary determinant of the voltage developed by a battery?

Fittoniya [83]

For the answer to the question above asking what is the primary determinant of the voltage developed by a battery?the answer is that the <span>the nature of the materials in the reaction that is the primary determinant of the voltage from a battery.</span>

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3 years ago

In the ground state of hydrogen, according to the Bohr model, an electron orbits 5.3 x 10-11 m from the nucleus. It undergoes a

Readme [11.4K]

Answer:

Explanation:

Given

radius of electron $(r)=5.3\times 10^{-11} m$