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zhannawk [14.2K]
3 years ago
14

A 0.1 kg tennis ball is brought from a speed of 15m/s to a speed of 45 m/s when hit by a tennis racket. If this done over 0.05 s

econds, what is the power generated by the tennis racket
Physics
1 answer:
Hitman42 [59]3 years ago
5 0
45 lolololololololol
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A hammer has a mass of 1 kg. What is its weight (i) on Earth (ii) on the
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Given mass= 1kg

Weight on earth = mg(gravity of earth) = 9.8N

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The material or substance that a wave moves through is called a ____
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1. medium
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A circuit with resistive elements of 220, 100, 57, and 43 produce what total resistance?
Korvikt [17]

The total resistance is 420 ohm.

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__________energy might also be released during a chemical reaction
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What is E of a hydrogen atom in the 3p state?
notsponge [240]

Answer:

E=-1.51 eV.

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Explanation:

The nth level energy of a hydrogen atom is defined by the formula,

E_{n}=-\frac{13.6}{n^{2} }

Given in the question, the hydrogen atom is in the 3p state.

Then energy of n=3 state is,

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Now, the value of L can be calculated as,

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Therefore, the value of L of a hydrogen atom in 3p state is L=\hbar\sqrt{2}.

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