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
son4ous [18]
2 years ago
9

Uma partícula com carga “Q”, no vácuo, gera um potencial elétrico de 600 volts a uma distância de 6,0 m, determine o valor dessa

carga. Em seguida, assinale a alternativa que apresenta o valor dessa carga.

Physics
1 answer:
garik1379 [7]2 years ago
8 0

Answer:

q =  400 nC

the correct answer is b

Explanation:

The expression for the electric potential of a point charge is

            V = k q / r

they ask us for the electrical charge

          q = V r / k

let's calculate

         Q = 600 6.0 / 9 10⁹

         Q = 4 10⁻⁷ C

let's reduce to nC

          Q = 4 10⁻⁷ C (10⁹ nC / 1C)

          q = 4 10² nC = 400 nC

the correct answer is b

Traslate

La expresión para el potencial eléctrico de una carga puntual es

            V = k q/r

nos piden la carga eléctrica

          q= V r /k

          calculemos

         Q= 600  6,0 / 9 10⁹

         Q=  4 10⁻⁷ C

reduzcamos a nC

          Q = 4 10⁻⁷ C(10⁹ nC/1C )  

          q = 4 10² nC = 400 nC

la respuesta correcta es b

You might be interested in
The amount of matter in an object is its _____.
Andrew [12]
The amount of matter in an object ismass....anything that occupies spaca and has weight is called matter.....
7 0
3 years ago
A Carnot engine operates between temperature levels of 600 K and 300 K. It drives a Carnot refrigerator, which provides cooling
KATRIN_1 [288]

Explanation:

Formula for maximum efficiency of a Carnot refrigerator is as follows.

      \frac{W}{Q_{H_{1}}} = \frac{T_{H_{1}} - T_{C_{1}}}{T_{H_{1}}} ..... (1)

And, formula for maximum efficiency of Carnot refrigerator is as follows.

     \frac{W}{Q_{C_{2}}} = \frac{T_{H_{2}} - T_{C_{2}}}{T_{C_{2}}} ...... (2)

Now, equating both equations (1) and (2) as follows.

 Q_{C_{2}} \frac{T_{H_{2}} - T_{C_{2}}}{T_{C_{2}}} = Q_{H_{1}} \frac{T_{H_{1}} - T_{C_{1}}}{T_{H_{1}}}        

        \gamma = \frac{Q_{C_{2}}}{Q_{H_{1}}}

                    = \frac{T_{C_{2}}}{T_{H_{1}}} (\frac{T_{H_{1}} - T_{C_{1}}}{T_{H_{2}} - T_{C_{2}}})

                    = \frac{250}{600} (\frac{(600 - 300)K}{300 K - 250 K})

                    = 2.5

Thus, we can conclude that the ratio of heat extracted by the refrigerator ("cooling load") to the heat delivered to the engine ("heating load") is 2.5.

4 0
2 years ago
This diagram shows how a certain type of precipitation is formed. Water drops are caught in up-drafts and down-drafts, over and
Svet_ta [14]

It would be B. Hail.

5 0
3 years ago
Identify the arrows that show the movement of carbon from the biosphere to the atmosphere in the carbon cycle.
Illusion [34]

Answer:

All of the arrows pointing up that have a red box NOT the arrow pointing down with a red box. (if the blue squigglies on the water are arrows then they count too, the picture is not too clear)

Explanation:

8 0
3 years ago
13. when a source of sound and a listener are in motion relative to<br> each other
dybincka [34]

Answer:

and person at rest hears sound at a different frequency than a person moving.

Explanation:

6 0
3 years ago
Other questions:
  • A man climbs on to a wall that is 3.6m high and gains 2268J of potential energy. What is the mass of the man? *
    15·1 answer
  • If 20 beats are produced within one second, which of the following frequencies could possibly be held by two sound waves traveli
    11·2 answers
  • Which of the following statements describes an interaction between the geosphere and atmosphere?
    11·2 answers
  • 6. A football is kicked with an initial speed of 10.2 m/s at an angle of 40.00 above the horizontal. It lands on the ground 2.12
    11·1 answer
  • A 2kg Book is sitting on a table.a 10n Force is pulling to the right.a 3n Force is pulling to the left what is the net force act
    8·1 answer
  • In a position vs. time graph depicting the motion of two different objects, the point at which the lines intersect is where the
    6·1 answer
  • An atom is chemically stable when it’s outer_____ is completely filled with _____.
    7·1 answer
  • 1. The gravitational force acting on a falling body and its weight is constant. But the law of universal gravitation tells us th
    15·1 answer
  • What is the definition of gravity in simple terms?
    8·1 answer
  • 5. is the earth’s magnetic field parallel to the ground at all locations? if not, where is it parallel to the surface? is its st
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!