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Anit [1.1K]
2 years ago
8

Each of the rods depicted below were machined from same stock metal. They were originally machined to be the same length, but th

eir cross-sectional areas were different. If axial force is applied to each rod such that they all change length by the same amount, which rod experienced the largest force
Physics
1 answer:
Shkiper50 [21]2 years ago
4 0

The force required to extend a rod increases as the cross sectional area

increases.

The rod that experiences the largest force is <u>rod B</u>

Reason:

The elongation of a rod by the application of a force is given by the

following formula;

\Delta L = \dfrac{F \cdot L}{A \cdot E}

From the above equation, we have that the elongation is inversely

proportional to the cross sectional area, such that the extension of a rod by

a given force reduces as the cross sectional area of the rod increases.

Therefore, the force required to extend the length of a rod by a specific

amount increases as the cross sectional area of the rod increases,

indicating that the rod with the largest cross sectional area require the

most force and therefore, experiences the largest force.

The rod that experiences the largest force is the rod with the largest cross

sectional area, which is <u>rod B</u>

Learn more here:

brainly.com/question/12937199

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Which part of an Adam is actively exchanged or shared in a chemical bond?
Lemur [1.5K]
Atom* the particles are (Electrons)
5 0
3 years ago
Two spherical drops of mercury each have a charge of 0.10 nC and a potential of 300 V at the surface. The two drops merge to for
hodyreva [135]

Answer:

V = 228\ V

Explanation:

given,

charge of two spherical drop = 0.1 nC

potential at the surface = 300 V

two drops merge to form a single drop

potential at the surface of new drop = ?

V = \dfrac{kq}{r}

r = \dfrac{9\times 10^9\times 0.1 \times 10^{-9}}{300}

r = 0.003 m

volume = 2 \times \dfac{4}{3}\pi r^3

            = 2 \times \dfac{4}{3}\pi \times 0.003^3

            = 2.612 × 10⁻⁷ m³

\dfac{4}{3}\pi R^3 = 2.612\times 10^{-7}

R =\sqrt[3]{\dfrac{2.612 \times 10^{-7}\times 3}{4\times \pi}}

R = 0.00396 m

V = \dfrac{kq}{r}

V = \dfrac{9\times 10^9 \times 0.1 \times 10^{-9}}{0.00396}

V = 227.27

V = 228\ V

6 0
3 years ago
If the concentration of Ag+ is 0.0115 M, the concentration of H+ is 0.355 M, and the pressure of H2 is 1.00 atm, calculate the c
scoundrel [369]

<u>Answer:</u> The cell potential is 0.712 V

<u>Explanation:</u>

The substance having highest positive E^o potential will always get reduced and will undergo reduction reaction. Here, silver will undergo reduction reaction will get reduced. Hydrogen will undergo oxidation reaction and will get oxidized

Half reactions for the given cell follows:

<u>Oxidation half reaction:</u> H_2(1.00atm)\rightarrow 2H^{+}(0.355M)+2e^-;E^o_{H^{+}/H_2}=0.00V

<u>Reduction half reaction:</u> Ag^{+}(0.0115M)+e^-\rightarrow Ag(s);E^o_{Ag^{+}/Ag}=0.80V   ( × 2 )

<u>Net reaction:</u> H_2(1.00atm)+2Ag^{+}(0.0115M)\rightarrow 2H^{+}(0.355M)+2Ag(s)

Oxidation reaction occurs at anode and reduction reaction occurs at cathode.

To calculate the E^o_{cell} of the reaction, we use the equation:

E^o_{cell}=E^o_{cathode}-E^o_{anode}

Putting values in above equation, we get:

E^o_{cell}=0.80-(0.00)=0.80V

To calculate the EMF of the cell, we use the Nernst equation, which is:

E_{cell}=E^o_{cell}-\frac{0.059}{n}\log \frac{[H^{+}]^2}{[Ag^{+}]^2}

where,

E_{cell} = electrode potential of the cell = ?V

E^o_{cell} = standard electrode potential of the cell = +0.80 V

n = number of electrons exchanged = 2

[Ag^{+}]=0.0115M

[H^{+}]=0.355M

Putting values in above equation, we get:

E_{cell}=0.80-\frac{0.059}{2}\times \log(\frac{(0.355)^2}{(0.0115)^2})\\\\E_{cell}=0.712V

Hence, the cell potential is 0.712 V

4 0
3 years ago
2.
koban [17]

The question is not well presented.

There is  ______ shift in sound  frequency for observers towards  whom the source is approaching.

Answer:

The  gap should be filled with an apparent upward

Explanation:

The Doppler effect (also referred to as the Doppler shift) is the difference in frequency of a wave when related to an observer who has a relative movement to the wave source

The Doppler effect can be observed to occur with all types of waves - most notably water waves, sound waves, and light waves

The Doppler effect describes sound as an effect which is produced from a moving source of wave.

According to the Doppler effect;

When the source of waves in which there is an apparent upward shift in frequency for observers towards whom the source is approaching.

3 0
3 years ago
Discuss how a battery works
Gnesinka [82]
The cathode and anode are hooked up to an electrical circuit The chemical reactions in the battery causes a build up of electrons at the anode. This results in an electrical difference between the anode and the cathode. Hope this helps :)
3 0
3 years ago
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