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dalvyx [7]
3 years ago
13

How does a battery work ?​

Physics
2 answers:
iragen [17]3 years ago
8 0
A battery is a device that stores chemical energy and converts it to electrical energy. ... The flow of electrons provides an electric current that can be used to do work. To balance the flow of electrons, charged ions also flow through an electrolyte solution that is in contact with both electrodes.
irakobra [83]3 years ago
5 0

Answer:

I completely agree with the first person's response.

Explanation:

They deserve Brainliest. Have a great summer.

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K value in base units for coloumbs law
Crazy boy [7]

Answer:

The constant k has the value. k = 8.99 × 10 9 N ⋅ m 2 /C 2.

5 0
2 years ago
A bubble originating at the bottom of a lake rises to the surface within 10.0 seconds with an acceleration of 10.0 meters/second
Bad White [126]
I KNOW that you must have seen this formula before.  It gives
the distance covered in a certain time of accelerated motion:

               D  =  1/2  A  T²

     Distance covered= (1/2) (Acceleration) (Time squared) .

The question gives us the acceleration and the time.
I've got a weird idea:  Let's plug them into the formula.  OK ?

       Distance = (1/2) (10 m/s²) (10 sec)²

                       =      (5 m/s²)      (100 sec²)

                       =              500 meters  .

           Deep lake !
6 0
3 years ago
Un carro parte del reposo y acelera uniformemente a 4.0 m / s^2 durante 5.0 s. A continuación, mantiene la velocidad que alcanzó
Arada [10]

Answer:

Average speed of the car = 16.53 m.s

Explanation:

For first 5 seconds:

As the car starts from rest, so the initial speed of the car, u=0

Acceleration, a= 4 m/s^2

So, the final speed (speed at time, t=5 second)

v=u+at

v=0 + 4 x 5 = 20 m/s

Distance covered,

s=ut+\frac 1 2 a t^2 \\\\s=0+\frac 1 2 \times 4 \times 5^2

s=50 m

As the car maintained the constant speed of 20 m/s for the next 10 seconds.

Distance traveled in 10 seconds, d=20 x 10 =200 m

For the last 4 seconds:

The car slows down at the rate of 2.0 m / s ^ 2 from the speed of 20 m/s.

As the car slows down, so the acceleration will be negative, i.e a=-2 m/s^2

s=ut+\frac 12 at^2 \\\\s=20\times 4 +\frac 12 (-2)4^2

s=80-16=64 m.

Considering all three cases, the total distance covered=

=50+200+64=314 m

Total time= 5+10+4=19 s

So, the averate peed= Totat distance covered / total time taken

=314/19=16.53 m/s

6 0
3 years ago
Osteoporosis is a condition that makes bones more
erastova [34]

the answer for this question is c

7 0
3 years ago
Tlo
kondor19780726 [428]

Answer:

9.949 m

Explanation:

From the question,

L' = L+LαΔT................. Equation 1

Where L' = New length, L = Original length, α = linear expansivity of Cu, ΔT = change in temperature

Given: L = 10 m, α  = 0.00017 K⁻¹, ΔT = 50-80

L' = 10+10(0.00017)(50-80)

L' = 10-0.051

L' = 9.949 m

Hence the new legth of Cu is  9.949 m

5 0
3 years ago
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