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GaryK [48]
4 years ago
6

How much work is required to move an electron

Physics
1 answer:
madreJ [45]4 years ago
3 0

Answer:B

Explanation:

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The number of planets, besides the earth, that are visible to the unaided eye is
sergejj [24]
The answer should be 5 it’s easy
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3 years ago
The open-circuit voltage of a car battery is measured to be 12 V. During engine startup, the battery delivers 10 A to the starte
dmitriy555 [2]

Answer:

- the Thevenin equivalent circuit for the battery is uploaded below

- the battery delivered 117 watts of power to the starter motor

Explanation:

Given the data in the equation

diagram of the Thevenin equivalent circuit for the battery is uploaded below.

Current I = 10 A

Voltage 1 = 12 V

voltage 2 = 11.7 v

R = (V1 - V2) / I

R = (12-11.7)/10

R = 0.3 / 10

R = 0.03Ω

Thevenin equivalent circuit

R_{L} = V2 / I = 11.7 / 10

R_{L} = 1.17Ω

so, power delivered to the starter motor will be;

p = (V2)² / R_{L}

P = ( 11.7 V )² / 1.17Ω

p =  136.89 / 1.17

p =  117 watts

Therefore, the battery delivered 117 watts of power to the starter motor

8 0
3 years ago
Little Red travels 30 miles to her grandmother's house at a steady speed of 10 miles per hour. If she leaves at 2pm, what time w
3241004551 [841]

Little Red will arrive at her grandmother's house at 5 PM :)

30/10 = 3

2 + 3 = 5

8 0
3 years ago
The amount of heat needed
Simora [160]
Q = mcθ
 
Where Q = Amount of heat in J
             m = Mass of substance in kg
              θ  = Temperature rise in °C or K
              C = Specific heat capacity in J/kgK

From given data:
Q = 33 kJ = 33 000 J, m= 2.0 kg,   θ  = 80 K,   c = ?

33000 =  2 * c * 80
33000 = 160c
160c   = 33000
       c   =  33000/160 = 206.25

Therefore specific heat capacity is 206.25 J/kgK
4 0
4 years ago
How long will it take an object to move 200 meters if the object is traveling with an average speed of 5 m/s
Veronika [31]
Its simple division
200/5=40s
it will take 40s
4 0
3 years ago
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