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olganol [36]
3 years ago
11

Heat energy moves:_______.

Physics
1 answer:
steposvetlana [31]3 years ago
3 0

c) only from warmer areas to colder areas.

The second principle of thermodynamics states that heat can only flow from a hotter body to a cooler one. Specifically, Clausius statement says that is not possible for heat to move by itself from a lower temperature body to a higher temperature body.

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Which statement does not describe a characteristic of a good outline?
lawyer [7]

Answer:

D. is the correct answe.

5 0
3 years ago
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Complete this equation that represents the process of nuclear fusion. Superscript 226 Subscript 88 Baseline R a yields Superscri
Talja [164]

Answer:

I know that the b portion for the bottom is 86 because thats the atomic number of Rn

Explanation:

7 0
3 years ago
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What would decrease the gravitational pull between the sun and Earth?(1 point)
VARVARA [1.3K]

The gravitational pull between the sun and Earth decreases if the sun was farther away from the earth.

<h3>What is Gravitational Force?</h3>

Any two bodies' gravitational pull on one another is directly proportional to the product of their masses and inversely proportional to the square of their distance from one another.

How do the planets move in relation to the Sun? The planets' orbits around the Sun are maintained by the gravity of the Sun. The Moon orbits the Earth due to the Earth's gravitational pull on the Moon for the same reason. But if the Earth is being drawn to the Sun, why doesn't it fall into it or the Moon strike the Earth?

The cause of this is because Earth moves at a speed that is perpendicular to the Sun's gravitational pull. The planets are thus kept in their designated orbits by the Sun's attraction as well as their sideways motion. Similar to how the Earth orbits the Moon, the Moon does so without touching it.

F=G(M1M2)/R² where,

F denotes gravitational force between two bodies,

R is the distance between two bodies from their center,

M1 denotes mass of first body and,

M2 denotes mass of second body.

So according to the question, if the distance between two bodies will increase, then the gravitational force between them will also decrease.

Hence, if the sun was farther away from earth, then gravitational pull between the sun and earth will decrease.

To get more information about Gravitational force :

brainly.com/question/12528243

#SPJ1

3 0
2 years ago
Which of the following statements are true consequences of the Principle of Superposition?
Andre45 [30]

Answer:

The right answer is d.Only (i), (ii), and (iii) are true

Explanation:

"(i) The net electric force on a charge, q0​​, due to other nearby charges is the vector sum of the individual electric forces on that charge". This is True. You obtain the net force on a charge q₀ by vectorial summing each force generated for the interaction with each charge in the system that interacts with q₀.

"(ii) The individual forces on a charge, q​0​​, can be summed by vector addition in any sequential order to find the net force on charge q​0​​". This is True. The order in the vector sum doesn´t affect the result (vectorial commutative property).

"(iii) A charge, q​0​​, placed at the exact midpoint between two identical charges will experience zero net force due to those charges". This is true. If the other two charges are identical, and q₀ is placed between these charges, the force that each of them makes over q₀ would be equal in module and opposite in sign. Therefore the net force, the sum of these two forces, would be null.

"(iv) The net force on a charge, q​0​​ due to other nearby charges is exactly equal to the force on charge q0​​due to the charge nearest to it, and is not affected at all by any of other charges nearby". This is false. this contradicts the point (i).

7 0
3 years ago
In an NMR experiment, the RF source oscillates at 38 MHz and the magnetic resonance of the hydrogen atoms in the sample being in
Lubov Fominskaja [6]

Answer: Bint = 0.204T

Explanation:

From the question, given that;

the RF source oscillates at 38MHz.

The external field has a magnitude of 0.75T.

From the relationship between external and internal magnetic field,

the external magnetic field is along the positive z-axis, while the internal field is along the positive z-axis.

From the expression;

Bnet = Bext - Bint ...........(1)

Proton magnetic moment along z - direction gives

U2 = 2.3×10^-26 J/T

U2 = rhi = r(h/2π)I........(2)

Energy change when an external magnetic field is applied becomes

∆E = h∆r =

∆E = rh/2π Bnet

where Bnet = Bext - Bint = h∆r/2u

Bint = Bext - Bnet

Bint = Bext - h∆r/2u =

= 0.75 - ((6.61×10^-34)×(38×10^6))/(2×(2.3×10^-26))

Bint = 0.204T

6 0
3 years ago
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