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inna [77]
3 years ago
5

A 1.5 V battery is connected to a bulb of resistance of 4.5 Ω. What is the current in the bulb?

Physics
1 answer:
kogti [31]3 years ago
7 0

Answer:

0.333 A

Explanation:

R= V/l

R= 4.5 ohms

V = 1.5 volts

I=?

I = V/R

1.5/4.5 = 0.333 A

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A meter stick moves parallel to its axis with speed of 0.96 c relative to you. What would you measure for the length of the stic
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Answer:

The length of the stick is 0.28 m.

The time the stick take to move is 0.97 ns.

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Given that,

Relative speed of stick v= 0.96 c

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Using formula of length

\Delta l=\Delta l_{0}\sqrt{(1-\dfrac{v^2}{c^2})}

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\Delta l=1\sqrt{1-\dfrac{(0.96)^2c^2}{c^2}}

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t=\dfrac{0.28}{0.96\times(2.99793\times10^{8})}

t=9.72\times10^{-10}\ sec

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Hence, The length of the stick is 0.28 m.

The time the stick take to move is 0.97 ns.

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