10-05-2021
Chemistry

contestada

A construction worker uses a pulley and a rope to
raise an 85 kg person to a height of 2 m in 6 s. How
much did he do?

Respuesta :

keijosalonen keijosalonen

10-05-2021

Answer: Work is 1.7 kJ, Power is 280 W

Explanation: Work W = mgh, power P= W/t

W = 85 kg·9.81m/s²·2 m = 1667.7 J

P = 1667.7 J / 6 s = 277.95 W

Answer Link

Otras preguntas

6x-3=2x-1 8 what’s x equal

Managers are constantly seeking out new tools to meet new challenges. Indicate which tool is more or less popular among today’s managers.a. Change management pr

5/6 - 1/3 Answers should be in the format 5/2 or 2/5. No decimals or mixed numbers.

What damage can most likely be caused by major tropical storms in Georgia? Check all that apply. wildfires, beach erosion, drought, flooding, storm surges

Question 4 (2 points) Your friend just challenged you to a race. You know in order to beat him, you must run 50 meters within 60 seconds in an eastern direction

1. Solve the equation: p + 15 = 51 a. p = 65 b. p = 46 C. p = 66 d. p = 36

Let g(x) = 3x² – 1. Find g(-2). c. a. (-2, 11) b. (-2, -7) (-2, -13) d. (-2,5)

Write 0.39 as a fraction in simplest form. To write the repeating decimal as a fraction, first let n=0.39. Then find 100n. n = 0.39 100n = 39.39 Subtract to eli

Companies that use the geocentric staffing model: a. require that every aspect of their human resource management process be undertaken from an international pe

What is the best title for dadaism