23-03-2021
Physics

contestada

A load of mass 120kg is raised
vertically through a height of 2m in
30s by a machine whose efficiency,
is 100% Calculate the power generated
by the machine

Respuesta :

keijosalonen keijosalonen

23-03-2021

Answer: P = 120 kg·9.81 m/s² · 2 m / 30 s = 78 W

Explanation: power P = Work done / time

Work is lifting work = mgh in which g = 9.81 m/s²

Time 30 s

Answer Link

Otras preguntas

Solve unit rate problems- what name should be in the correct blank spot?

can someone help me please

please help!! i’ll give you brainliest

There are two stereoisomers of 1-tert-butyl-4-chloro-cyclohexane. One of these isomers reacts with sodium ethoxide in an E2 reaction that is 500 times faster th

One circle has a circumference of 12pi cm. Another circle has circumference of 32pi cm. What is the ratio of the radius of the smaller circle to the radius of t

True of false are collaboration and teamwork the same thing

need help ASAP due in a few min

The formula for the nth term of a sequence is 3n +7 What is the 6th term in the sequence?

Please help this is for a test no scams or links please 10.Bishop Barron is very concerned about Religion fading and growing weaker in our society, "When R

the sun produces energy from matter in its core through the process of