« previous next »

Author Question: A 500-kg elevator is pulled upward by a cable that exerts a constant force of 5500 N on the elevator ... (Read 642 times)

ETearle

  • Hero Member
  • *****
  • Posts: 580
on: Jul 29, 2018
A 500-kg elevator is pulled upward by a cable that exerts a constant force of 5500 N on the elevator for a distance of 50.0 m. The elevator is the system.
 
  (a) What is the work done by the 5500-N force? (b) What is the work done by the gravitational force? (c) What is the net work done on the elevator?

Question 2

If the Sun were twice as massive
 
  A) its pull on the Earth would double.
  B) Earth's pull on the Sun would double.
  C) both of these
  D) none of the above


mcni194

  • Sr. Member
  • ****
  • Posts: 311
Reply #1 on: Jul 29, 2018
Answer to Question 1

(a) 275 Kj (b) -245 kJ (c) 30.0 kJ

Answer to Question 2

Answer: C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

ETearle

  • Hero Member
  • *****
  • Posts: 580
Reply #2 on: Jul 29, 2018
Thanks


mcni194

  • Sr. Member
  • ****
  • Posts: 311
Reply #3 on: Jul 29, 2018
Welcome :)


« previous next »
 

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

The Speed of Light Is Constant The Speed of Light Is Constant
The cultural and racial–ethnic diversity of today’s work force has led to the need for diversity ... The cultural and racial–ethnic diversity of today’s work force has led to the need for diversity ...
finding the resultant force finding the resultant force
How far apart should two protons be if the electrical force of repulsion exerted on each one is ... How far apart should two protons be if the electrical force of repulsion exerted on each one is ...
At 34.5°C, oxygen gas expands from 34.5 L to 45.7 L against a constant pressure of 750 mmHg. ... At 34.5°C, oxygen gas expands from 34.5 L to 45.7 L against a constant pressure of 750 mmHg. ...
Write equilibrium constant expressions for the following reactions in terms of concentration: Write equilibrium constant expressions for the following reactions in terms of concentration:
Video: Double Vacuum Process (Illustration No Audio)

For a complete list of videos, visit our video library