3 years ago

The speed of an object increases by 30 m/s in 10 seconds. what is its acceleration?

Physics

1 answer:

Sladkaya [172]3 years ago

4 0

Hope this helps you

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A charge of 4.5 × 10-5 C is placed in an electric field with a strength of 2.0 × 104 . If the charge is 0.030 m from the source

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Answer:

The electrical potential energy is 0.027 Joules.

Explanation:

The values from the question are

charge (q) = $4.5 \times 10^{-5} C$

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Now the formula for the electrical potential energy (U) is given by

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Answer:

Explanation:

Intensity of light is inversely proportional to distance from source

I ∝ 1 /r² where I is intensity and r is distance from source . If I₁ and I₂ be intensity at distance r₁ and r₂ .

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If r₂ = 4r₁ ( given )

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