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Pani-rosa [81]
4 years ago
15

2.4 An aircraft travels 1000 m in 4.0 s. What isits speed?​

Physics
1 answer:
padilas [110]4 years ago
5 0

Answer:

\huge{ \boxed{ \tt{250 \:  \sf{m \: / \: s} }}}

Explanation:

\star{ \sf{ \:  \underline{ Given}}} :

\sf{Distance \: travelled \:  = 1000 \: m}

\sf{Time \: taken \:  =  \: 4.0 \: s}

\underline{ \sf{Let's \: find \: it's \: speed}}  :

\boxed{ \sf{Speed =  \frac{Distance \: travelled}{Time \: taken} }}

\mapsto{ \sf{Speed =  \frac{1000 \: m}{4.0 \: s}}}

\mapsto{ \sf{speed  = 250 \: m \:/ \: s}}

Hope I helped!

Best regards! :D

~\sf{TheAnimeGirl}

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A solenoid having an inductance of 5.41 μH is connected in series with a 0.949 kΩ resistor. (a) If a 16.0 V battery is connected
vekshin1

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(A) 9.14\times 10^{-9}sec

(B) 6.20\times 10^{-3}A

Explanation:

We have given inductance L=5.41\mu H=5.41\times 10^{-6}H

Resistance R=0.949kohm=0.949\times 10^3ohm

Time constant of RL circuit is equal to \tau =\frac{L}{R}

\tau =\frac{5.41\times 10^{-6}}{0.949\times 10^3}=5.70\times 10^{-9}sec

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i=i_0(1-e^{\frac{-t}{\tau }})

According to question

0.799i_0=i_0(1-e^{\frac{-t}{\tau }})

e^{\frac{-t}{\tau }}=0.201

{\frac{-t}{\tau }}=ln0.201

{\frac{-t}{5.7\times 10^{-9} }}=-1.6044

t=9.14\times 10^{-9}sec

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Will a non-metal replace a metal?​
I am Lyosha [343]

Answer:

no

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non-metal and metal are two different things

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