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

Use graph paper and a straightedge to draw the figure. The set of points (–1, 2), (5, 2), (5, –4), and (–1, –4) identifies the vertices of a quadrilateral

What word means the authors point of view?!

Which task is a part of narrowing down a subject for a paper? A. creating a plan for writing the paper B. deciding on the scope of the topic C. searching for re

why e=mc2?why not e=mc3?

All of the following are found in a concluding paragraph EXCEPT A. personal insights. B. a statement with a hook. C. key points from the essay. D. a restate

what contribution did alfred t. mahan make to help america become an imperial power

Which of the following is not descriptive of the pH scale? It measures the amount of hydrogen ions in a solution. 7.0 represents a neutral solution. A value bel

SCIENCE HELP! 10 POINTS! What Are Some Flora And Fauna Of The Death Valley Desert??

Why does Frederick Douglass faint at the start of the chapter

name at least four of the six processes of life that cells control