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raketka [301]
4 years ago
9

In static equilibrium, the potential difference between two points inside a solid piece of metal Group of answer choices is zero

because metals block electric interactions. is zero because the electric field is zero inside the metal. is non-zero if the piece of metal is not spherical. is non-zero if there are charges on the surface of the metal. is non-zero for reasons not given above. is zero for reasons not given above.
Physics
1 answer:
levacccp [35]4 years ago
4 0

Answer:

it is zero because the electric gap is zero within the material

Explanation:

In a metal you have many free electrons, and fixed charges formed by nuclei and electrons that are not free; therefore the charge carriers are the free electrons, these have the same negative charge and due to the lectrostatic force they repel each other as far as possible without leaving the material, this implies that at two points there must be the same potential because otherwise there would be a net Caesarian force accumulating charge in a part that would be eliminated by the Coulomb force.

With this we can review the statements the strap is: it is zero because the electric gap is zero within the material

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Why is ultraviolet radiation considered more dangerous to humans than infrared radiation?
Firdavs [7]
Answer is in the question :)
7 0
3 years ago
Determine the average distance between the Earth and the Sun. Then calculate the average speed of the Earth in its orbit in kilo
FrozenT [24]

Answer:

The average speed of the Earth in its orbit is 4.74 km/s.

Explanation:

Distance between the Earth and the Sun ,r= 149.60 million km = 149.60\times 10^6 km

Considering the movement of Earth  around the Sun follows circular path.

The circumference of circular path will be give by :

D=2\pi r=2\times 3.14\times 149.60\times 10^6 km

Time taken by Earth to complete revolution around earth ,T= 1 year

1 year = 365 days

1 year = 31,536,000 seconds

T = 31,536,000 seconds

Speed of the Earth around the Sun :S

S=\frac{D}{T}=\frac{149.60\times 10^6 km}{31,536,000 s}

S=4.74 km/s

The average speed of the Earth in its orbit is 4.74 km/s.

8 0
3 years ago
A piano string having a mass per unit length equal to 5.20 10-3 kg/m is under a tension of 1 450 N. Find the speed with which a
DedPeter [7]

Answer:

The wave in the string travels with a speed of 528.1 m/s

Explanation:

Wave speed of sound waves in a string, v, is related to the Tension in the string, T, and the mass per unit length, μ, by the relation,

v = √(T/μ)

μ = 5.20 × 10⁻³ kg/m

T = 1450N

v = √(1450/0.0052) = 528.1 m/s

Hope this Helps!!!

6 0
3 years ago
What is the value of x in the triangle? a 45-45-90 triangle with leg length x and hypotenuse length 4
mrs_skeptik [129]

Answer:

x = 2\sqrt 2

Explanation:

Given

Hypotenuse = 4

Required

Find x

Since the triangle is a 45-45-90 triangle, the following relationship exists

x^2 + x^2 = 4^2 --- i.e. the other legs are equal

So, we have:

2x^2 = 16

Divide both sides by 2

x^2=8

Take square roots of both sides

x = \sqrt 8

Simplify

x = 2\sqrt 2

5 0
3 years ago
Read 2 more answers
Which state of matter is made up of particles that build repeating patterns such as the crystalline structure of sodium chloride
SCORPION-xisa [38]

B. solid

Explanation:

The solid state of matter is made up of particles that build repeating patterns. Solid is one of the four physical states of matter.

  • Matter is described as anything that has weight and occupies space.
  • The four states of matter are solid, liquid, gas and plasma.
  • Solid particles are known to be closely packed and held together by very strong attractive forces.
  • Solid like sodium chloride are said to be crystalline because they have crystals.
  • Crystals are ordered atomic structures formed by repeating units of the fundamental molecular units.
  • The repeating patterns of the crystals builds to form a solid.
  • Other states of matter do not posses the repeating crystalline structure of solids.

Learn more:

Crystalline brainly.com/question/6528456

#learnwithBrainly

7 0
3 years ago
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