KileeU437418 KileeU437418

25-10-2022
Physics

contestada

What is the efficiency of a block and tackle if you pull 20 m of rope with a force of 600 N to raise 200kg piano 5 m?

Respuesta :

BrantleeA127972 BrantleeA127972

25-10-2022

W out = mass * distance * gravity

E in = Force * distance

Efficiency = W out / E in = (200 kg * 5m*9.8N) / (600N * 20m) = 0.81

0.81 x 100 = 81 %

Answer Link

Otras preguntas

A one-year-old child can classify animals and people.truefalse

can a girl ans this question

You are sitting at the reception desk and there are two patients sitting in the adjoining waiting room. A new patient appears at her scheduled appointment time

These cartoons both depict both william mckinley and the concept of prosperity during the campaign for the presidency in 1896. notice in the cartoon on the righ

The motion of the piston in an automobile engine is oscillatory as the piston travels back and forth. If the piston makes 2,000 complete cycles every minute, wh

write a letter to your foreign friend telling her/her about your country

How would the photo's setup change the mechanical advantage of lifting the block as compared with lifting the block without a lever? answer choices The mechanic

based on figure 1, what percent of the time required to complete a full cycle do the cells typically spend in interphase?

The Nano Server Initial Configuration Interface can be used to set basic parameters that will allow a management system to access the Nano Server system over t

Distorted thinking patterns can lead to maladaptive behaviors.truefalse