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Levart [38]
3 years ago
12

Knowing the P is 1110 N, determine the tension in the rope if the frame is in equilibrium. Express your answer in kN to the near

est 10 N.

Physics
1 answer:
ra1l [238]3 years ago
3 0

Explanation:

It is given that the value of P is 1110 N. And, for pin connection we have only two connections which are A_{x} and A_{y}. Let T be the tension is rope.

So,  \sum F_{y} = 0 and A_{y} - 1110 = 0

              A_{y} = 1110 N

     \sum F_{x} = 0

And,    T - A_{x} = 0

                  T = A_{x}

Also, \sum M_{A} = 0

                1110(0.75 + 0.75 + 0.75) - T(0.5 + 0.1) = 0

                    2497.5 - 0.6T = 0

                         T = 4162.5 N

                             = 4.16 kN

Therefore, we can conclude that the tension in the rope if the frame is in equilibrium is 4.16 kN.

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A train moves with a constant velocity for 15s for 155m. How fast is the train moving?
bonufazy [111]

Answer: 10.3m/s

Explanation:

In theory and for a constant velocity the physics expression states that:

Eq(1):  distance  = velocity times time <=> d = v*t    for v=constant.

If we solve Eq (1) for the velocity (v) we obtain:

Eq(2):  velocity  = distance divided by time <=> v = d/t

Substituting the known values for t=15s and d=155m we get:

v = 155 / 15 <=> v = 10.3

5 0
3 years ago
Match the definition with the correct term: resistance to flow.
alukav5142 [94]
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3 0
3 years ago
hallar un numero de dos cifras sabiendo que la suma de las cifras es 12 y que la primera de ellas es el triple de la segunda
Natali [406]

Answer:

93 o 39.

Explanation:

Hola.

En este caso, podemos resolver este problema por medio del planteamiento de las siguientes ecuaciones:

1. Definimos <em>x</em> como el primer dígito y <em>y</em> como el segundo, por lo tanto, como su suma es 12, escribimos:

<em>x</em> + <em>y</em> = 12

2. Ahora, dado que el primer dígito, x es el triple del segundo, escribimos:

<em>x</em> = 3 <em>y</em>

De este modo, podemos resolver para <em>y</em>:

3 <em>y</em> + <em>y</em> = 12

4 <em>y</em> = 12

<em>y</em> = 12 / 4

<em>y</em> = 3

Y para <em>x</em>:

<em>x</em> = 3 <em>y</em>

<em>x</em> = 3 * 3

<em>x</em> = 9

Así, el número puede ser 93 o 39.

¡Saludos!

3 0
3 years ago
What effect does a doubling of the mass have upon the acceleration of the object? Be quantitative.
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If the mass is heavier, then the acceleration of the object will be slow and it will take time to stop. HOPED THIS HELP YOU :)
7 0
3 years ago
The magnetic field in an electromagnetic wave has a peak value given by b = 4.8 μt . part a part complete for this wave, find th
liubo4ka [24]
The relationship between intensity of the magnetic field B and intensity of the electric field E for an electromagnetic wave is given by
E=cB
where c=3 \cdot 10^8 m/s is the speed of light.

This relationship holds also for the peak intensity of the two fields. Since the peak intensity of the magnetic field is
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we can use the previous relationship to find the peak value of the electric field:
E=(3 \cdot 10^8 m/s)(4.8 \cdot 10^{-6} T)=1440 V/m=1.4 kV/m
6 0
2 years ago
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