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DIA [1.3K]
3 years ago
5

How much relativistic energy is in a 0.3 kg object?

Physics
1 answer:
natita [175]3 years ago
4 0
Relativistic energy is the energy that is in the form of mass, E=mc² where c=speed of light, therefore the energy=0.3*(3*10^8)² =2.7*10^16 J
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What is the frequency of the fundamental mode of vibration of a steel piano wire stretched to a tension of 440 N? The wire is 0.
Rasek [7]

Complete Question

The complete question is shown on the first uploaded image

Answer:

Explanation:

From the question we are told that

    The tension is  T  =  440 \  N

     The length of the wire is l =  0.600 \  m

     The mass is  m  =  5.60 \ g = 0.0056 \  kg

Generally the frequency is mathematically represented as

            f  =  \frac{1}{2l}  *  \sqrt{\frac{T}{\frac{m}{l} } }

=>        f  =  \frac{1}{2 * 0.600 }  *  \sqrt{\frac{440}{\frac{0.0056}{0.600} } }

=>        f = 181 \ Hz

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3 years ago
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VMariaS [17]
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Has a definite shape and definite volume. Question 4 options: liquid gas solid
ad-work [718]

Answer:

solid

Explanation:

solid

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