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matrenka [14]
2 years ago
11

Please help

Physics
1 answer:
Aneli [31]2 years ago
5 0

Answer:

170 energy

Explanation:

I don't know the answer

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A 125 W motor accelerates a block along a level, frictionless surface at an average speed of 5.0
Lelu [443]

Answer:

25N

Explanation:

Given parameters:

Power of the motor = 125W

Average speed  = 5m/s

Unknown:

Force supplied to the motor = ?

Solution:

 Work done is the force applied to move a body through a particular distance;

         Work done  = Force x distance

Also,

        Work done  = Power x time

 

So;

             Force x distance = Power  x time

  since force is the unknown;

            Force  = \frac{Power x time}{distance}

         Speed  = \frac{distance }{time}

             Force  = \frac{Power}{speed}

Now solve;

                Force  = \frac{125}{5}    = 25N

3 0
3 years ago
7) The acceleration due to gravity near the surface of Mars is about one-third of the value
Doss [256]

Answer:

C) three times slow than on earth

8 0
3 years ago
Calcular la longitud del faldón de una Rampa de Acceso , que en planta tiene una longitud de 20 m y la pendiente es 27%.
seraphim [82]

La longitud del faldón de la rampa es de 5.4 m.

 

La pendiente expresada en porcentaje sigue la siguiente ecuación:

m=\frac{y}{x}*100 (1)

Donde:

  • y es la elevacion de la rampa (faldón)
  • x es la longitud de la ramapa (20 m)

Sabemos que la pendiente es de 27%. Por lo tanto, usando la ecuación 1, despejamos y.

27=\frac{y}{20}*100

y=\frac{27*20}{100}

y=5.4\: m        

La longitud del faldón es 5.4 m

Pudes ver más sobre el tema aquí:

brainly.com/question/8906330

5 0
3 years ago
Swings are usually made out of materials that do not conduct heat easily, so that children will not burn themselves as they play
Irina18 [472]

the correct answer is D: all of these

8 0
3 years ago
What is the line that joins northen and southren hemisphere of the earth is called a
svp [43]

The line is called equator.

5 0
3 years ago
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