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Ede4ka [16]
3 years ago
12

Why is chemical energy a form of potential energy

Physics
1 answer:
dusya [7]3 years ago
5 0
Chemical Potential Energy is a form of Potential Energy related to the structral arrangment of Atoms or Molecules.
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In a physics lab experiment for the determination of moment of inertia, a team weighs an object and finds a mass of 2.15 kg. The
Maksim231197 [3]

Answer:

0.339 kgm²

Explanation:

We know the period of this pendulum, T = 2π√(I/mgh) where I = moment of inertia of the object about the pivot axis, m = mass of object = 2.15 kg, g = acceleration due to gravity = 9.8 m/s² and h = distance of center of mass of object from pivot point = 0.163 m.

Since T = 2π√(I/mgh), making I subject of the formula, we have

I = mghT²/4π²

Now since it takes 241 s to complete 113 cycles, then it takes 241 s/113 cycles to complete one cycle.

So, T = 241 s/113 = 2.133 s

So, Substituting the values of the variables into I, we have

I = mghT²/4π²

I = 2.15 kg × 9.8 m/s² × 0.163 m × (2.133 s)²/4π²

I = 15.63/4π² kgm²

I = 0.396 kgm²

Now from the parallel axis theorem, I = I' + mh² where I' = moment of inertia of object with respect to its center of mass about an axis parallel to the pivot axis

I' = I - mh²

I' = 0.396 kgm² - 2.15 kg × (0.163 m)²

I' = 0.396 kgm² - 0.057 kgm²

I' = 0.339 kgm²

7 0
3 years ago
Which of the following best describes why a white dwarf cannot have a mass greater than the 1.4 solar mass limit? A. White dwarf
Basile [38]

Answer: C. Electron degeneracy pressure depends on the speeds of electrons, which approach the speed of light as a white dwarf's mass approaches the 1.4-solar-mass limit.

Explanation:

4 0
2 years ago
In order to be neutral, an atom has to contain equal numbers of _______
Vedmedyk [2.9K]

In order to be electrically neutral, an atom has to contain
equal numbers of protons (with their positive charges) and
electrons (with their negative charges).

8 0
3 years ago
Read 2 more answers
According to the Universal Law of Gravitation, if the separation between two planets is increased by a factor of 8, how many tim
madam [21]

Answer:

weakens by 64 times  

Explanation:

According to universal law of gravitation the force between two bodies is inversely proportional to square of their distance between them that F is inversely proportional to r^2

So if we increase the the distance between two planets by 8 times then the the mutual attraction between will be decrease by 8^2 times  

3 0
3 years ago
A surfer is riding a wave with an amplitude of 20 feet and a period of 40 feet. If the wave completes a period in 10 seconds, wh
Leviafan [203]

The speed of the surfer is 4ft/s

Given,

Average wavelength(W) = 40ft

T=10s

So, Speed = W/T=40/10=4ft/s

<h3>Wavelength</h3>

The distance over which a periodic wave's shape repeats is known as the wavelength. It is the separation between neighboring wave points that correspond to the same phase, such as two adjacent crests, troughs, or zero crossings. It is a property of both traveling waves and standing waves as well as other spatial wave patterns. The spatial frequency is the wavelength's reciprocal. The Greek letter lambda (), which represents wavelength, is frequently used. When describing modulated waves, their sinusoidal envelopes, or waves created by the interference of several sinusoids, the term wavelength is also occasionally used.

Learn more about Wavelength here:

brainly.com/question/13533093

#SPJ4

4 0
1 year ago
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