﻿ Apulley system lifts a 500-ib block 1.0 foot with an effort of only 50 ib. if the 50 ib moves 30 feet, calculate  , 20.06.2019 18:02, soulspiritsa

# Apulley system lifts a 500-ib block 1.0 foot with an effort of only 50 ib. if the 50 ib moves 30 feet, calculate the efficiency of the pulley system. a. 30% b. 33% c. 70% d. 67% ### Other questions on the subject: Physics According to the law of conservation of mass, in a chemical reaction the total starting mass of all the reactants equal the total final mass of all the products. true or false? Physics, 21.06.2019 18:20, charlie3051
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Devonte pushes a wheelbarrow with 830 w of power. how much work is required to get the wheelbarrow across the yard in 11 s? round your answer to two significant figures. it takes j of work to get the wheelbarrow across the yard.
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Apulley system lifts a 500-ib block 1.0 foot with an effort of only 50 ib. if the 50 ib moves 30 fee...

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