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3 years ago

What kind of electric cell is considered to be rechargeable?

Physics

2 answers:

liubo4ka [24]3 years ago

8 0

Answer:

a. Storage cell

Explanation:

A Storage cell is an electric cell that can be recharged. During recharging of a Storage cell, current flow is reversed and oxidation occurs on the positive electrode and reduction on the negative electrode. Since the anode is by definition the electrode on which oxidation occurs and the cathode where reduction occurs, the positive electrode is now the anode and the negative is the cathode.

Phantasy [73]3 years ago

3 0

What kind of electric cell is considered to be rechargeable?
A. Storage cell

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Two cellists, one seated directly behind the other in an orchestra, play the same note for the conductor who is directly in fron

sergij07 [2.7K]

Answer:

Please see below as the answer is self-explanatory.

Explanation:

In order to have a destructive interference, the path difference between the sources of the sound, must be equal to an odd multiple of the semi-wavelength, as follows:

⇒ d = d₂ - d₁ = n*(λ/2)

The minimum posible value for this distance, is when n=1, as it can be seen here:

dmin = λ/2

In any traveling wave, there exists a fixed relationship between the wave speed, the frequency and the wavelength:

v = λ*f

Therefore, assuming that the speed of sound keeps constant, if the frequency is increased, in order to keep the right side of the expression above balanced, λ must be decreased.
As the smallest separation that produces destructive interference is directly proportional to the wavelength, this means that this separation will decrease if the cellists produced a note with a higher frequency.

7 0

2 years ago

The energy of an electromagnetic wave is related to

Sedbober [7]

Answer:

The energy carried by an electromagnetic wave is proportional to the frequency of the wave. The wavelength and frequency of the wave are connected via the speed of light: Electromagnetic waves are split into different categories based on their frequency (or, equivalently, on their wavelength).

Explanation:

6 0

3 years ago

In this circuit the resistance R1 is 7 Ω and R2 is 3 Ω. If this combination of resistors were to be replaced by a single resisto

Scilla [17]

Answer:

Series combination:

Equivalent resistance =10Ω

Parallel combination:

Equivalent resistance $=\frac{21}{10} \Omega$

Explanation:

Resistance: Resistance is the ratio of voltage to the current.

$R=\frac{V}{I}$

R = resistance

I = current

V= potential difference(voltage)

There are two types of resistance combinations.

series combination
parallel combination.

Series combination: If the ending point of one resistance is connected to the starting point of other resistance that combination is known as series combination.

If R₁,R₂ and R₃ are connected in series combination.

Then equivalent resistance = R₁+R₂+R₃

Parallel combination: If the ending point and the starting point of the all resistance are the same points that combination is known as parallel combination.

If R₁,R₂ and R₃ are connected in parallel combination.

Then equivalent resistance $\frac{1}{R}= \frac{1}{R_1}+ \frac{1}{R_2}+\frac{1}{R_3}$

Here R₁=7Ω and R₂=3Ω

If R₁ and R₂ connected in series combination

Then equivalent resistance = (7+3) Ω

=10Ω

If R₁ and R₂ connected in parallel combination

Then equivalent resistance $=\frac{1}{(\frac{1}{7} +\frac{1}{3})} \Omega$

$=\frac{21}{10} \Omega$

5 0

3 years ago

Which three quantities can be used to calculate acceleration?

ikadub [295]

The correct option will be
D. Time, initial velocity and final velocity
The Formula can be written as,
Acceleration=Final velocity-Initial Velocity/Time

5 0

2 years ago

The temperature of a sample of water increases from 20°c to 46.6°c as it absorbs 5650 calories of heat what is the mass of the s

kompoz [17]

M=energy transferred/ (temperature change*specific heat) M= 5650/(26.6*1.0) M=212g

4 0

3 years ago