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

Label the sentence below as active or passive. The poll was designed by a famous scholar from Poland. a. active b. passive

Explain ONE example of an imperial state that gained territory through a treaty settlement after World War I.

one box of chocolates and seven roses cost $36 and two boxes of chocolate and a dozen roses cost $64. How much do the chocolates and roses cost individually?

The total of a regular polygon's interior angles is 3420°. What is the size of each exterior angle? Give your answer to two decimal places.

two rooms in a tiny house share a wall. The area of the bathroom is 24 square ft. The area of the closet is 16 square ft. The expression 24+16 represents the to

Help me please i need your help

Which statement best describes the relationship between the lunar new year and the moon? A The position of both the moon and sun determine when the lunar new ye

can anyone help me with this? i don’t understand it, thank you.

Determine the sum. Write your answer in scientific notation. 4.4 × 10^4 + 12.3 × 10^4 = ? options: A. 16.7 × 10^8 B. 1.67 × 10^5 C. –7.9 × 10^4 D. 54.12 × 1

What is resolution? could anyone tell?