This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Can work be done on a system if there is no motion? A) Yes, since motion is only relative. B) ... (Read 72 times)

dollx

  • Hero Member
  • *****
  • Posts: 558
on: Jul 29, 2018
Can work be done on a system if there is no motion?
 
  A) Yes, since motion is only relative.
  B) Yes, if the sum of the external forces is zero.
  C) Yes, if an external force is acting on the system.
  D) No, since a system which is not moving has no energy.
  E) No, since work involves a non-zero displacement.

Question 2

Dimensional analysis can tell you whether an equation is physically correct.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

carlsona147

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 29, 2018
Answer to Question 1

E

Answer to Question 2

FALSE


dollx

  • Member
  • Posts: 558
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

cassie_ragen

  • Member
  • Posts: 347
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Malpighian tubules from the excretory system of an insect. Malpighian tubules from the excretory system of an insect.
Organization of the nervous system. Organization of the nervous system.
Work and Gender: Women at Work in India Work and Gender: Women at Work in India
The J2534 pass-through reprogramming system does not need a scan tool to reflash the PCM on most ... The J2534 pass-through reprogramming system does not need a scan tool to reflash the PCM on most ...
Renin–angiotensin system. Renin–angiotensin system.
Action of the DNA uracil repair system Action of the DNA uracil repair system
Video: DNA Replication

For a complete list of videos, visit our video library