Pulsefire Pulsefire
  • 08-03-2024
  • Physics
College

An electric hoist is used to lift a 235.0 kg load to a height of 69.0 m in 38.1 s.

(a) What is the power of the hoist in kW?

Answer :

Donek Donek
  • 03-04-2024
[tex]Given:\\m=235.0kg\\h=69.0m\\t=38.1s\\g=9.81 \frac{m}{s^2} \\\\Find:\\P=?\\\\Solution:\\\\P= \frac{W}{t}\\\\W=\Delta E_p\\\\E_p_0=0\Rightarrow \Delta E_p=E_p\\\\E_p=mgh \\\\P= \frac{mgh}{t} \\\\P= \frac{235kg\cdot9.81 \frac{m}{s^2}\cdot69m}{38.1s} \approx 4175W=4.175kW[/tex]
Answer Link

Other Questions

How can the workbook protection applied to this workbook be removed?
A person stands on a square pedestal whose side lengths are 1.20
Consider the following assembly code: 1) OR x1, x0, x4 2) AND
Describe the process for woodcut printing.
During the receipt of F-76, when are samples taken?
The Columbian Exchange can best be described as which type of cultural
Which of the excerpts from "The Monsters Are Due on Maple Street"
The Inca had advanced knowledge of engineering. What did the Inca build
Lily is 10 years old. She gets a score of 97 on
What is a GAF scale of 91-100?
current ratio=2.5, working capital=60000 Then What is Current Assets and Current Liabilities?
In a first-order reaction, if the time taken for the completion of
Thomas Hobbes argued the following: "That people give up some of their
What is the purpose of a road sign that instructs drivers that
According to the Englishmen, what is the name of the discovery that