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NikAS [45]
3 years ago
14

The energy levels for electrons vary from one element to another. True or False

Physics
1 answer:
Artyom0805 [142]3 years ago
4 0

Answer: true

They vary from element to element

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Water has a very high specific heat capacity when compared to most other common materials. In fact, ethyl alcohol has a specific
AveGali [126]

Answer:

Lead, Ethyl alcohol and water.

Explanation:

Specific heat capacity of a substance can be define as the quantity of heat that is absorbed by a substance needed to change the temperature of a unit mass of one kilogram of the substance by one kelvin

5 0
3 years ago
A rope 6m long is fixed at one end; the other end is attached to a light string so that it is free to move. The speed of waves o
Mila [183]

Given :

A rope 6m long is fixed at one end, the other end is attached to a light string so that it is free to move.

The speed of waves on the rope is 18 m/s.

To Find :

The frequency of the second harmonic.

Solution :

We know, for second harmonic wave :

Wavelength = Length of rope

\lambda = L\\\\\lambda = 6 \ m

Now, we know frequency is given by :

Frequency = \dfrac{Speed}{Wavelenght}\\\\f = \dfrac{18 \ m/s}{6\ m}\\\\f = 3 \ s^{-1}

Therefore, the frequency of the second harmonic is 3 s⁻¹.

7 0
3 years ago
What does the word apparent mean in apparent visual magnitude
SSSSS [86.1K]

The word 'apparent' mean in apparent visual magnitude is, how bright the star appears when viewed from Earth.

What is visual magnitude?

The brightness of a celestial body is determined by eye estimation with or without optical aid or by other instrumentation equivalent to the eye in spectral sensitivity.

Apparent magnitude:

  • Apparent magnitude is a measure of how bright the star appears when viewed from Earth.
  • It is a measure of the brightness of a star or other astronomical object observed from Earth.
  • An object's apparent magnitude depends on its intrinsic luminosity and its distance from Earth.

Hence,

The word 'apparent' mean in apparent visual magnitude is, how bright the star appears when viewed from Earth.

Learn more about visual magnitude here:

<u>brainly.com/question/14782876</u>

#SPJ4

3 0
2 years ago
Cliff divers at Acapulco jump into the sea macias (fjm793) – Homework 3, 2d motion 19-20 – dowd – (WoffordWPHY11920 2) 4 from a
Stells [14]

Answer:

v = 7.67 m/s

Explanation:

Given data:

horizontal distance 11.98 m

Acceleration due to gravity 9.8 m/s^2

Assuming initial velocity is zero

we know that

h = \frac{gt^2}{2}

solving for t

we have

t = \sqrt{\frac{2h}{g}}

substituing all value for time t

t = \sqrt{\frac{2\times 11.98}{9.8}}

t = 1.56 s

we know that speed is given as

v = \frac{d}{t}

v =\frac{11.98}{1.56}

v = 7.67 m/s

7 0
3 years ago
A geologist visits Jessica’s classroom. He shows the class a diagram of different landforms. Which of these landforms is created
prisoha [69]

Answer:

The answer is A) River delta

Explanation:

River deltas are formed by the deposition of sediment carried by rivers.

5 0
3 years ago
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