RoboticNaruto4693 RoboticNaruto4693

03-01-2018
Physics

contestada

How much work is done when a hoist lifts a 290-kg rock to a height of 7 m?

Respuesta :

samuraijack samuraijack

03-01-2018

Given: Mass m = 290 Kg; Height h = 7 m

Required: Work = ?

Formula: Work = Force x distance but, Force F = mg

W= fd

W = mgh

W= (290 Kg)(9.8 m/s²)(7 m)

W = 19,894 Kg.m²/s²

W = 19,894 J

Answer Link

Otras preguntas

What is all the organisms living in a certain area?

A box of cashews peanuts and almonds contains 240 nuts. for every five cashews there are four peanuts and seven almonds. how many more cashews are there than pe

The cost of manufacturing a printer is $35. The manufacturer has a markup of 15% when selling to a retailer. The retailer has a markup of 30%. what is the selli

Factor mn+5m-3n-15.

ending time: 10:08 am elapsed time: 30 minutes

what is 5/12 divided by 5/8

the basement has an area of 864 square feet. the width of the basement is two thirds its length. What is the length of the basement?

Which African American was the first black person to get a doctorate from Harvard University? a) Booker T. Washington b) F. L. Barnett c) W. E. B. Du Bois d) La

What are tiny blood vessels that has walls thin enough for carbon dioxide and oxygen to be exchanged

Which statement about cells is true? A)They vary in size but are all the same shape. B)They vary in shape but are all the same size. C)They vary in size and sha