1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
V125BC [204]
3 years ago
12

What's the formula to find out power

Physics
1 answer:
Julli [10]3 years ago
3 0

In general, 

                 Power = (energy moved) / (time to move the energy) .

If it's mechanical power, then     

                 Power = (work done) / (time to do the work) .

If it's electrical power, then it can be any one of these:

                 Power  =  (volts)  x  (amperes)

                 Power  =  (volts)²  /  (resistance, ohms)

                 Power  =  (amperes)²  x  (resistance, ohms) .

Whatever kind of energy you're dealing with, power always
turns out to be

                  (amount of energy produced, used, or moved)
divided by
                  (time taken to produce, use, or move the energy) .          
You might be interested in
Why do many people view controls negatively?
GREYUIT [131]
Many People<span> Are Averse to Management "</span>Control<span>" ... and then subsequent decisions about what to </span>do<span> is the essence of management coordination</span>
5 0
3 years ago
A block weighing 15N rest on a flat surface and a horizontal force of 3N is exerted on it. Determine the frictional force on the
Ipatiy [6.2K]

The answer you are looking for is 3.0N

7 0
3 years ago
Two parallel metal plates are at a distance of 8.00 m apart.The electric field between the plates is uniform directed towards th
dezoksy [38]
<h2>The K.E of the charge is 1.02 x 10⁻¹⁷ J</h2>

Explanation:

When the charge of 2e is placed in between the plates .

The force applied on this charge by plates is = q E

here q is the magnitude of charge = 2 e = 2 x 1.6 x 10⁻¹⁹ C

and E is the magnitude of electric field intensity

The work done = Force x displacement

Thus W = q E x S

here S is displacement

Therefore W = 2 x 1.6 x 10⁻¹⁹ x 4 x 8

= 1.02 x 10⁻¹⁷ J

This work will be converted into the kinetic energy of charge .

Thus K.E = 1.02 x 10⁻¹⁷ J

4 0
3 years ago
Scientists think that the __________, made of liquid iron and nickel, moves to produce Earth s magnetic field.
NeTakaya
C. OUTER CORE

Scientists think that the outer core, made of liquid iron and nickel, moves to produce Earth's magnetic field.

The outer core lies between the solid inner core and mantle. It is a fluid layer that is 2,300 km think. 
7 0
3 years ago
Suggest and explain two ways to reduce heat loss through the doors of the house.
emmainna [20.7K]
Keep the doors closed and make sure there isnt lots of open space between the door and the frame
8 0
3 years ago
Other questions:
  • When flying the LNAV approach, the missed approach point (MAP) would be indicated by reaching __________. A. an altitude of 3100
    5·1 answer
  • Can You Answer This
    13·1 answer
  • Choose the more reactive metal. Al or Zn
    5·2 answers
  • An object of mass m is moving down an inclined plane that makes an angle they a with the horizontal and has height h. Which of t
    12·1 answer
  • an experiment was done to see which colored sand would heat up the most when placed in the sun. The sand samples were white, red
    8·1 answer
  • Calculate the acceleration of a helium nucleus (charge +2e, where e-electronic charge), when it enters an electric field of stre
    13·1 answer
  • Looking down on a Northern Hemisphere extratropical cyclone, surface winds blow ________ about the center. a.counterclockwise an
    11·1 answer
  • A compound machine is a combination of two or more blank
    10·1 answer
  • Drag the tiles to the correct boxes to complete the pairs.
    11·1 answer
  • Please help
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!