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topjm [15]
3 years ago
5

A circuit contains two 2,000 resistors connected in parallel. What is the total resistance of the circuit?

Physics
1 answer:
GenaCL600 [577]3 years ago
5 0
RT = R1 R2/ R1 + R2

R1 = R2 = 2k ohm

RT = R/2 = 2k/2 = 1k ohm 
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Prompt Write about what you have learned about parts of the atom and the
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Explanation:

5 0
3 years ago
Assume your car reaches a speed of 21.7 m/s at a steady rate for 5.05 s after the light turns green. (a) What distance have you
boyakko [2]

Answer:

The distance and average speed are 54.79 m and 10.85 m.

Explanation:

Given that,

Speed = 21.7 m/s

Time = 5.05 s

(a). We need to calculate the distance

Firstly we will find the acceleration

Using equation of motion

v = u+at

a = \dfrac{v-u}{t}

Where, v = final velocity

u = initial velocity

t = time

Put the value in the equation

a = \dfrac{21.7-0}{5.05}

a = 4.297 m/s^2

Now, using equation of motion again

For distance,

s = ut+\dfrac{1}{2}at^2

s = 0+\dfrac{1}{2}\times4.3\times(5.05)^2

s=54.79\ m

The distance is 54.79 m.

(b). We need to calculate the average speed during this time

v_{avg}=\dfrac{D}{T}

Where, D = total distance

T = time

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v_{avg}=\dfrac{54.79}{5.05}

v_{avg}=10.85\ m/s

Hence, The distance and average speed are 54.79 m and 10.85 m.

3 0
3 years ago
Will mark the brainliest
Gennadij [26K]

Answer:

OK draw a diagram - you have the force from (b) acting sown the slope and a component of the weight. Use F=ma to get the deceleration and then use SUVAT. Post your working if this doesn't work.

friction = 900N

braking = 3100N

total = 4000N

w= mxg = 1000*9.81= 9810N

total = 9810 + 4000 = 13810N

force/mass = 13810/1000 = 13.81ms^-2

then using v^2 = u^2 + 2as, i get s as 14 but it is incorrect

Explanation:

4 0
3 years ago
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