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Phoenix [80]
3 years ago
12

A man travels 8,000 meters in 20 mins how fast is he going

Physics
1 answer:
Elden [556K]3 years ago
5 0
Speed = 8000m/20min = 400m/min

Convert meters/min to meters/second.
60seconds in 1minute:
400m/60sec = 6.67m/s

Speed is: 6.67m/s
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A capacitor in a single-loop RC circuit is charged to 85% of its final potential difference in 2.4 s. What is the time constant
atroni [7]

Answer:

The  time constant is  \tau  = 1.265 s

Explanation:

From the question we are told that

     the time take to charge is  t = 2.4 \  s

The mathematically representation for voltage potential of a capacitor at different time is

        V  =  V_o  - e^{-\frac{t}{\tau} }

Where  \tau  is the time constant  

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     So  the capacitor potential will be  100%  when it is full thus  V_o  =100%  =  1  

and from the  question we are told that the  at the given time the potential of the capacitor is 85% = 0.85 of its final potential so

      V  = 0.85

Hence

     0.85 =  1 -  e^{-\frac{2.4}{\tau } }

       - {\frac{2.4}{\tau } }  =  ln0.15

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7 0
3 years ago
Uma massa de 500 Kg desloca-se com velocidade 58 km por hora. Calcule o módulo de sua quantidade por movimento
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The momentum of the object is 8050 kg m/s

Explanation:

The momentum of an object is defined as

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m = 500 kg is its mass

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Therefore now we can find the momentum of the object:

p=(500)(16.1)=8050 kg m/s

Learn more about momentum:

brainly.com/question/7973509

brainly.com/question/6573742

brainly.com/question/2370982

brainly.com/question/9484203

#LearnwithBrainly

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4 years ago
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scZoUnD [109]
KE=203.125 J !!!!!!!!!
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