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Ne4ueva [31]
2 years ago
7

I need help plz!!! Please help...

Physics
1 answer:
RSB [31]2 years ago
4 0

Answer: 60

Explanation:

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A pulley system operates with 40% efficiency. if the work put in is 200 joules, how much useful work is produced?
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<span>1.    </span><span>Efficiency is the measure of how efficient a process is. It is used to assess the ability of a process in avoiding waste energy, materials, money and time in doing a desirable output. It is calculated as;

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<span>.40 = useful work / 200</span>

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In proof testing of circuit boards, the probability that any particular diode will fail is 0.01. Suppose a circuit board contain
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Answer: 2 diodes

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Given : In proof testing of circuit boards, the probability that any particular diode will fail is 0.01.

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2 years ago
A light-year is the distance light travels in one year (at speed = 2.998 × 108 m/s). (a) how many meters are there in 11.0 light
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<span>The answers are as follows:

(a) how many meters are there in 11.0 light-years?

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1.04x10^17 m ( 1 au / </span>1.50 × 10^8 km <span>) ( 1 km / 1000 m) = 693329.472 au

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