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bogdanovich [222]
3 years ago
14

Can someone help me in this please any one good in science.

Physics
1 answer:
strojnjashka [21]3 years ago
4 0

Let's calculate the equivalent resistances on both circuits.

On Diagram A we have a <em>series connection</em> of the resistors. The equivalent resistance will be the sum of all resistances:

R_{eq}=1+1+1\\\\\boxed{R_{eq}=3\Omega}

On diagram B we have a <em>parallel connection</em> of the resistors. The reciprocal of the equivalent resistance will be the sum of the reciprocals of all the resistances:

\frac{1}{R_{eq}} = \frac{1}{1} +\frac{1}{1} +\frac{1}{1} \\\frac{1}{R_{eq}}=3\\\\\boxed{R_{eq}=\frac{1}{3}}

Therefore, the larger resistance occurs on diagram A.

For the current, recall

V=IR

Where I stands for current R is the resistance and V is the voltage. Rearranging the equation we have

I = \frac{V}{R}

We can see that the larger the resistance, the smaller the current gets. So the larger current must happen in the diagram with smaller resistance. Therefore, the larger current occurs on diagram B.

Glad to help, wish you great studies ;)

Mark brainliest if you deem the answer worthy

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Answer:

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- The time required for you to stop once you press the brakes = less than 5 s in order not to hit the deer.

Explanation:

Using the equations of motion,

In the 0.5 s reaction time, we need to first calculate how far he has travelled in that time.

a = 0 m/s² (Since the car is travelling at constant velocity)

x = ?

Initial velocity = u = 20 m/s

x = ut + at²/2

x = 20×0.5 + 0 = 10 m

From that moment,

a = - 10 m/s²

u = initial velocity at the start of the deceleration = 10 m/s

v = final velocity = 0 m/s

x = ?

v² = u² + 2ax

0² = 10² + 2(-10)(x)

20x = 100

x = 5 m

Total distance travelled from when the deer stepped onto the road = 10 + 5 = 15 m

Distance between car and the deer when the car stopped = 35 - 15 = 20 m

b) To determine the time required to stop once you step on the brakes

u = 10 m/s

t = ?

v = 0 m/s²

x = distance from when the brake was stepped on to the deer = 35 - 10 = 25 m

x = (u + v)t/2

25 = (10 + 0)t/2

10t = 50

t = 5 s

Meaning the time required to stop once you step on the brakes is less than 5s.

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Early in the twentieth century, a group of German psychologists noticed that people tend to organize a cluster of sensations int
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An object has a velocity of 8 m/s and a kinetic energy of 480 j what is the mass of the object
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