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Mrrafil [7]
3 years ago
11

Technician A says that a 12-volt battery has six cells. Technician B says that the more plates a cell in a battery has, the more

voltage it creates. Who is correct? Technician A Technician B Both Technician A and Technician B Neither Technician A nor Technician B
Physics
2 answers:
Zinaida [17]3 years ago
7 0

Answer: Only technician A.

Explanation:

A 12 volt battery has 6 cells, where each cell produces around 2 volts.

Now, a battery cell has two sets of plates (or two main plates), one set of negative charged plates and other of positive charged plates, separated by an insulating material. Those plates are related to the amount of energy that can be stored by the battery, not with the voltage it has.

So the only one correct is technician A.

Stells [14]3 years ago
6 0

Answer:Technician A

Explanation:

Technician A is right as a 12 v battery contains 6 cells of 2.2 volts and

The size of the battery plates and amount of electrolyte decides the amount of charge lead acid batteries can store for example thus more plates a cell does not mean more voltage it creates.

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The answer to the question '<span>In a series of undisturbed rock layers where shale lies between sandstone below and limestone above, the __." would be limestone is youngest. Out of all the rock layers, the limestone is dated to be the youngest of all.</span>
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Acceleration is the magnitude of average velocity.​
lina2011 [118]

Answer:

false

Explanation:

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A mass m attached to a horizontal massless spring with spring constant k, is set into simple harmonic motion. its maximum displa
Lesechka [4]
At the point of maximum displacement (a), the elastic potential energy of the spring is maximum:
U_i= \frac{1}{2} ka^2
while the kinetic energy is zero, because at the maximum displacement the mass is stationary, so its velocity is zero:
K_i =0
And the total energy of the system is
E_i = U_i+K= \frac{1}{2}ka^2

Viceversa, when the mass reaches the equilibrium position, the elastic potential energy is zero because the displacement x is zero:
U_f = 0
while the mass is moving at speed v, and therefore the kinetic energy is
K_f =  \frac{1}{2} mv^2
And the total energy is
E_f = U_f + K_f =  \frac{1}{2} mv^2

For the law of conservation of energy, the total energy must be conserved, therefore E_i = E_f. So we  can write
\frac{1}{2} ka^2 =  \frac{1}{2}mv^2
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6 0
3 years ago
Which process requires the addition of energy to water?
Taya2010 [7]

Water must absorb energy in order to melt, evaporate, or get warmer.

3 0
3 years ago
g Initially, the motorcycle travels along a straight road with a speed of 35 m/s (this is almost 80 mph). The maximum decelerati
astraxan [27]

Given:

Initial speed of the motorcycle (u) = 35 m/s

Final speed of the motorcycle (v) = 0 m/s (Complete Stop)

Maximum deceleration of the motorcycle (a) = -1.2 m/s²

Required Equation:

\boxed{\bf{ v = u + at}}

Answer:

By substituting values in the equation, we get:

\rm \longrightarrow 0 = 35 + ( - 1.2)t \\  \\  \rm \longrightarrow  0 = 35 - 1.2t \\  \\  \rm  \longrightarrow 35 - 1.2t = 0 \\  \\  \rm  \longrightarrow 35- 35 - 1.2t = 0 - 35 \\  \\  \rm  \longrightarrow  - 1.2t =  - 35 \\  \\  \rm \longrightarrow  \dfrac{ - 1.2t}{ - 1.2}  =  \dfrac{ - 35}{ - 1.2}  \\  \\  \rm \longrightarrow  t = 29.167 \: s

\therefore Time taken by motorcycle to come to a complete stop (t) = 29.167 s

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3 years ago
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