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4 years ago

Which of the following is an example of electrical energy being converted to chemical energy?

Physics

2 answers:

NNADVOKAT [17]4 years ago

8 0

Answer: Option (B) is the correct answer.

Explanation:

Electric energy is defined as the energy generated due to the movement of electrons through a wire or solution.

Whereas chemical energy is the energy present within the bonds of a chemical compound. When a chemical reaction takes place then if chemical energy is released then it will be in the form of heat.

So, when a storage battery is charged using an electric current then it means electric energy is being converted into chemical energy.

And, when a loudspeaker, which is plugged in to the wall, begins to project sound then electrical energy is being converted into sound energy.

Whereas when the wheels on a machine begin to turn and move a conveyer belt then work is being done. This means that electric energy is being converted into mechanical energy.

Thus, we can conclude that a storage battery is charged using an electric current is an example of electrical energy being converted to chemical energy.

tekilochka [14]4 years ago

7 0

Answer : The correct option is, (B)

Explanation :

Electrical energy : It is defined as the movement of the electrons thought the wire.

Chemical energy : It is a type of energy which is stored in the bonds of a chemical compounds. During the chemical reaction, chemical energy is released in the form of heat.

Sound energy : It is a type of energy which is produced when an object vibrate.

Mechanical energy : It is a type of energy that can be used to do work.

The option A is incorrect because in this process, electrical energy being converted to the sound energy.

The option B is correct because in this process, electrical energy being converted to chemical energy. An oxidation-reduction reaction occurs in the storage battery.

The option C is incorrect because in this process, mechanical energy being converted to mechanical energy.

Hence, the option (B) A storage battery is charged using an electric current is an example of electrical energy being converted to chemical energy.

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Light of wavelength 480 nm illuminates a pair of slits separated by 0.27 mm. If a screen is place 1.7 m from the slits, determin

Dahasolnce [82]

Answer:

Δy = 6.05 mm

Explanation:

The double slit phenomenon is described by the expression

d sin θ = m λ constructive interference

d sin θ = (m + ½) λ destructive interference

m = 0,±1, ±2, ...

As they tell us that they measure the dark stripes, we are in a case of destructive interference, let's use trigonometry to find the sins tea

tan θ = y / x

y = x tan θ

In the interference experiments the measured angle is very small so we can approximate the tangent

tan θ = sin θ / cos θ

cos θ = 1

tan θ = sin θ

y = x sin θ

We substitute in the destructive interference equation

d (y / x) = (m + ½) λ

y = (m + ½) λ x / d

The first dark strip occurs for m = 0 and the third dark strip for m = 2. Let's find the distance for these and subtract it

m = 0

y₀ = (0+ ½) 480 10⁻⁹ 1.7 / 0.27 10⁻³

y₀ = 1.511 10⁻³ m

m = 2

y₂ = (2 + ½) 480 10⁻⁹ 1.7 / 0.27 10⁻³

y₂ = 7.556 10⁻³ m

The separation between these strips is Δy

Δy = y₂-y₀

Δy = (7.556 - 1.511) 10⁻³

Δy = 6.045 10⁻³ m

Δy = 6.05 mm

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3 years ago

What causes competition among organisms?

irga5000 [103]

Answer:

Whats up Bmw,

The organisms is caused when both the organisms or species are harmed, which is limited supply of at least one resource from food or even water used by both can be a factor.

Explanation:

Hope I helped you, and let me know if you need help on anything else :p

8 0

4 years ago

Read 2 more answers

I need a bit of help on this one, can anyone answer?

emmainna [20.7K]

Potential energy = m · g · h

-- When you held the ball at 2.0 meters above the floor, it had

(0.5 kg) · (9.8 m/s²) · (2.0 m) = 9.8 Joules of potential energy.

-- After it bounced and went back up as high as it could, it was only 1.8 meters above the floor. Its potential energy was

(0.5 kg) · (9.8 m/s²) · (1.8 m) = 8.82 Joules

-- Between the drop and the top of the bounce, it lost

(9.8 - 8.82) = <em>0.98 Joule</em> .

-- The energy was lost when the ball hit the floor. During the hit, 0.98 joule of kinetic energy turned to <em>thermal energy</em>, which slightly heated the ball and the floor.

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3 years ago

An infinitely long line of charge has a linear charge density of 7.50×10^−12 C/m . A proton is at distance 14.5 cm from the line

Nata [24]

Answer:

10.22 cm

Explanation:

linear charge density, λ = 7.5 x 10^-12 C/m

distance from line, r = 14.5 cm = 0.145 m

initial speed, u = 3000 m/s

final speed, v = 0 m/s

charge on proton, q = 1.6 x 10^-19 C

mass of proton, m = 1.67 x 10^-27 kg

Let the closest distance of proton is r'.

The potential due t a line charge at a distance r' is given by

$V=-2K\lambda ln\left (\frac{r'}{r} \right )$

where, K = 9 x 10^9 Nm^2/C^2

W = q V

By use of work energy theorem

Work = change in kinetic energy

$qV = 0.5m(u^{2}-v^{2})$

By substituting the values, we get

$V=\frac{mu^{2}}{2q}$

$-2K\lambda ln\left ( \frac{r'}{r} \right )=\frac{mu^{2}}{2q}$

$- ln\left ( \frac{r'}{r} \right )=\frac{mu^{2}}{4Kq\lambda }$

$- ln\left ( \frac{r'}{r} \right )=\frac{1.67 \times 10^{-27}\times 3000\times 3000}{4\times 9\times 10^{9}\times 1.6\times 10^{-19}\times 7.5\times 10^{-12} }$

$- ln\left ( \frac{r'}{r} \right )=0.35$

$\frac{r'}{r} =e^{-0.35}$

$\frac{r'}{r} =0.7047$

r' = 14.5 x 0.7047 = 10.22 cm

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3 years ago

what would be more damaging:having a head-on collision with an identical car at the same speed or driving head on into a crash b

natali 33 [55]

A head on collision would be worse and it would actually be four times as worse since the speed is doubled and energy is a squared value so by far a head on collision with another car

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3 years ago