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levacccp [35]
3 years ago
7

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 children who are bored while waiting for their flight at the airport decide to race from one end of the 20-m-long moving sid
QveST [7]

Answer: Phillipe wins the race

Explanation:

Given

Length of track=20 m

Velocity of Phillippe=2 m/s w.r.t sidewalk

Velocity of sidewalk=1.5 m/s

Rena velocity=2 m/s

Therefore absolute velocity of P is 2+1.5=3.5 m/s

Time taken by phillippe \frac{20}{3.5}+\frac{20}{3.5-1.5}

t_P=5.714+10=15.714 s

Time taken by rena

t_r=\frac{20}{2}+\frac{20}{2}=20 s

as the time taken  by phillippe is less than rena therefore Phillippe wins the race.

8 0
3 years ago
Read 2 more answers
Which of the following involve an increase in the entropy of the system under consideration? a. melting of a solid b. evaporatio
Mama L [17]

Explanation:

Since, entropy is the measure of degree of randomness. So, more randomly the molecules of a substance are moving more will be its entropy.

  • For example, when a solid melts then it means heat is absorbed by it due to which its molecules have gained energy. As a result, they collide with each other and hence, entropy will increase.
  • Evaporation of a liquid will also cause the liquid to change its state from liquid to gas. This means molecules will go far away from each other leading to an increase in the entropy.
  • Sublimation is a process of conversion of a solid into gaseous phase without going through liquid phase. So, in this case also entropy will increase due to gain in energy by the molecules of a solid.
  • In freezing, molecules of a substance come closer to each other and acquire less energy. Hence, entropy decreases.
  • Mixing is a process of combining two or more substances physically with each other. This leads to increase in entropy of a substance.
  • In separation molecules are separated from each other leading to a decrease in energy. Hence, entropy will also decrease.
  • Diffusion is a process in which molecules are able to rapidly move from one place to another. Hence, entropy increases when diffusion takes place.

Thus, we can conclude that melting of a solid, evaporation of a liquid, sublimation, mixing and diffusion involve an increase in the entropy of the system under consideration.

8 0
3 years ago
1. . The maximum current output of a 60 Ω circuit is 11 A. What is the rms voltage of the circuit?
natta225 [31]

Answer:In a DC circuit, the power consumed is simply the product of the DC voltage times the DC current, given in watts.for AC circuits with reactive components we have to calculate the consumed power differently.

a 1/4 watt resistor or a 20 watt amplifier.

3 0
3 years ago
What is characteristic of an opaque object.
stiks02 [169]

Answer:

allows no light to pass

Explanation:

5 0
2 years ago
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When atoms lose electrons they become positively charged ! When atoms gain electrons they become negatively charged !
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