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Gnesinka [82]
3 years ago
9

Scientific laws explain_____.

Physics
1 answer:
arsen [322]3 years ago
3 0

Howdy! I have your answer:

Scientific laws explain repeated observations that are experimental.

It also describes aspects of the universe.

~sofia

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What is the time constant of a series circuit where the capacitor is 0.330μF and the resistor is 10Ω ?
PtichkaEL [24]

Answer:

\tau=3.3*10^{-6}s

Explanation:

Take at look to the picture I attached you, using Kirchhoff's current law we get:

C*\frac{dV}{dt}+\frac{V}{R}=0

This is a separable first order differential equation, let's solve it step by step:

Express the equation this way:

\frac{dV}{V}=-\frac{1}{RC}dt

integrate both sides, the left side will be integrated from an initial voltage v to a final voltage V, and the right side from an initial time 0 to a final time t:

\int\limits^V_v {\frac{dV}{V} } =-\int\limits^t_0 {\frac{1}{RC} } \, dt

Evaluating the integrals:

ln(\frac{V}{v})=e^{\frac{-t}{RC} }

natural logarithm to both sides in order to isolate V:

V(t)=ve^{-\frac{t}{RC} }

Where the term RC is called time constant and is given by:

\tau=R*C=10*(0.330*10^{-6})=3.3*10^{-6}s

3 0
3 years ago
The proper time between two events is measured by clocks at rest in a reference frame in which the two events: The proper time b
alekssr [168]

Answer:

a - As long as the time between 2 events is reconcilable with a light signal, the time between the events, in that frame, can be determined.

8 0
3 years ago
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Friction depends on the types of surfaces involved and how hard the surfaces push together. Please select the best answer from t
LenKa [72]

True: Friction depends on the types of surfaces involved and how hard the surfaces push together.

5 0
3 years ago
Please help please help
Inessa [10]

Answer: p= m/v so 90kg/.075m^3 = 1,200

2a. .35 m 1.1 m and .015 m

2b. 35 cm x 110 cm x 1.5 cm = 5,775 cm^3 = 57.75 m^3

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mass= 155,925 kg

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Explanation: physics

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3 years ago
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Galileo Galilei was the first scientist to perform experiments in order to test his ideas. He was also the first astronomer to systematically observe the skies with a telescope.

:)

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3 years ago
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