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

During the Neolithic revolution productuion of a food surplus led directly to

Which element has an atom in the ground state with a total of three valence electrons? (1) aluminum (3) phosphorus (2) lithium (4) scandium

Jerry borrowed $4,000 for 5 years at 6% simple interest rate. How much interest is that?

What was one important geographic reason the United States was able to maintain a foreign policy of neutrality throughout most of the 19th century? (1) The Atla

which statement about the value of the 5 in 775 and 89,507 is true?

Liz earns 5% commission on all sales she makes so far this month she has made $2400 in sales what amount did Liz earn in commission this month? Liz earns $600 e

The larger of two numbers is 6 less than 9 times smaller. Their sum is 54. Find the numbers. Help Pls.

Japan invaded Russia Manchuria China from Korea in 1937.

78÷39 in long division

The Federalist Papers, written by Alexander Hamilton, John Jay, and James Madison, were intended to (1) promote independence from Great Britain (2) persuade vot