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Varvara68 [4.7K]
3 years ago
12

Which of the following activities works on muscle strength? A. cutting hedges B. moving furniture C. raking leaves D. vacuuming

the house
Physics
1 answer:
Ksenya-84 [330]3 years ago
3 0
The answer would be B
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What is the magnitude of the electric field at a distance of 89 cm from a 27 μC charge, in units of N/C?
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Answer:

306500 N/C

Explanation:

The magnitude of an electric field around a single charge is calculated with this equation:

E(r) = \frac{1}{4 \pi *\epsilon 0} \frac{q}{r^2}

With ε0 = 8.85*10^-12 C^2/(N*m^2)

Then:

E(0.89) = \frac{1}{4 \pi *8.85*10^-12} \frac{27*10^-6}{0.89^2}

E(0.89) = 306500 N/C

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Material A is less optically dense than material B. How can you tell from the diagram above?
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D. you develop positive interactions with your peers
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A baby carriage is sitting at the top of a hill that is 21 m high. The carriage with the baby weighs 20
kirza4 [7]

Answer:

Energy in carriage (Potential energy) = 4,116 J

Explanation:

Given:

Mass of baby = 20 kg

Height = 21 m

Find:

Energy in carriage (Potential energy)

Computation:

The energy accumulated in an object as a result of its location relative to a neutral level is known as potential energy.

In carriage accumulated energy is potential energy.

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Energy in carriage (Potential energy) = (20)(9.8)(21)

Energy in carriage (Potential energy) = 4,116 J

3 0
2 years ago
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