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Gala2k [10]
3 years ago
10

Is potential difference is same in parallel series

Physics
1 answer:
Papessa [141]3 years ago
8 0
-- The potential difference (voltage) is the same across all components
that are connected in parallel.

-- The current is the same through all components that are connected in series.
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ΔP = 986 Kpa

Explanation:

The solution is given in the pictures below

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If an engine cannot be 100%
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Answer: Given the evidence in the explanation, I'm pretty sure it's C. It still exists, but in a different form.

Explanation: "Some part of the energy supplied is used to change the internal energy of the system. Some part is also released into the surroundings. Generally, frictional losses are more predominant for the machines being not 100% efficient. This friction leads to the loss of energy in the form of heat, into the surroundings."

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two forces 3N and 4N act on 20kg mass. calculate the magnitude of the resultant force if the angle between the two forces is 60°
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A pendulum of length L = 1 m is released from an initial angle of 15° . After 1000 s, its amplitude is reduced to 2.5º. What is
jonny [76]

Answer:

The value of the time constant is 558.11 sec.

Explanation:

Given that,

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Initial angle = 15°

Time = 1000 s

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Using formula of damping oscillation

\theta=\theta_{0}e^{\dfrac{t}{\tau}}

Where, \theta =amplitude

\theta_{0} =amplitude at t = 0

Put the value into the formula

2.5=15e^{\dfrac{-1000}{\tau}}

\dfrac{1}{6}=e^{\dfrac{-1000}{\tau}}

ln\dfrac{1}{6}=\dfrac{-1000}{\tau}

\tau=\dfrac{1000}{-ln\dfrac{1}{6}}

\tau=558.11\ sec

Hence, The value of the time constant is 558.11 sec.

6 0
3 years ago
A kitten has a mass of 0.8 kg. It is moving forward with a momentum of 0.5 kg • m/s. What is the kitten’s velocity?
morpeh [17]

The kitten's velocity is   V=0.625 m/s

<u>Explanation:</u>

<u>Solving the problem,</u>

Given

Mass=0.8 kg

Momentum=0.5 kg.m/s

Velocity=?

We have the formula,

P=M*V

V=P/M

V=0.5 kg.m/s/0.8 kg

V=0.625 m/s

The kitten's velocity is   V=0.625 m/s

<u />

5 0
4 years ago
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