sihamabdalla591
20.10.2019 •
Physics
Is it possible to have a single force?
Solved
Show answers
More tips
- W Work and Career Secrets of a Super Supervisor: Proper Team Management...
- P Photography and Videography Understanding HDR: How It Works and Why You Need It...
- G Goods and services Which TV is better - LCD or Plasma?...
- S Sport How to Learn to Pull Up on Monkey Bars?...
- L Leisure and Entertainment Scrapbooking: What is it and Why is it Becoming More Popular?...
- C Computers and Internet Where did torrents.ru move to?...
- B Business and Finance Understanding Cash Flow: What It Is and How It Works...
- C Computers and Internet What Are Peers and Seeds in Torrenting?...
- H Health and Medicine 10 Simple Techniques on How to Boost Your Mood...
- G Goods and services How to Choose the Right High Chair for Your Baby?...
Answers on questions: Physics
- P Physics The sketch below shows some of the insides of a stereo speaker. running current through the wire, which is wrapped around the base of the cone, causes the cone to move in and...
- P Physics Which object possesses more gravitational potential energy: a 2-kilogram ball at 2.2 meters above the ground or a bullet that is .15 kilograms at a height of 74 meters above...
- P Physics There must be equal amounts of mass on both side of the center of mass of an object. true or false...
- P Physics Let two objects of equal mass m collide. object 1 has initial velocityv, directed to the right, and object 2 isinitially stationary. if the collision is perfectly elastic,...
- P Physics Compared to the gravitational force between two nucleons in an atom of helium, the nuclear force between the nucleons is...
- P Physics Question 5 Which of the following conditions would cause the greatest change in an object s speed? a large net force applied to a heavy object a small net force applied to...
- P Physics To find the mass of a liquid, you put it in a container before you measure it and put it on the scale. After reading the measurement, what is the next step? idek what this...
- M Mathematics Match the correct scenario with the correct unit rate format....
- E English How is your motivation at this post?...
- M Mathematics Which two values of x are roots of the polynomial below? 4x2 - 6x + 1 D A -8 + 128 X = 6 -6 U B 152 16 C. -6 + 52 X = 16 D D XE 6+ /20 8 D E. x=6-20 8 OF. = -8-28 6...
Ответ:
Example 1. I'am pushing pushing the table closer to the wall.
If you have just finished reading the example above , you should now know that there is only one force that is active at the moment. The table doesn't have an active force because it cannot fight against mine. The only type of "defense" the table has is friction because of the rubbing against the floor.
I hope this helped you a lot,
Ответ:
Option (d) is correct.
Explanation:
Work done is given by :
W = Fd, where F is force and d is displacement
Unit of work done :
The SI unit of force is Newton (N) and that of displacement is meter (m). So, the unit of work done is N-m. It is call Joule. It means that the unit of work done is Joule.
Power is given by rate at which the work is done. It is given by :
P = W/t, W is work done and t is time
Unit of power:
Unit of work is Joule (J) and that of time is second (s). It means that the unit of power is Watt and it is equal to Joule/second
Hence, the correct option is (d) "The unit for work is a joule. The unit for power is a watt, which is a joule per second".