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Juli2301 [7.4K]
3 years ago
11

Which expression is equivalent to g−m ÷ gn?

Physics
1 answer:
Vinvika [58]3 years ago
5 0

<u>Answer</u>

(g²n - m)/(gm)


<u>Explanation</u>

g - m ÷ gn = g - m/gn  

Make the equation have the same denominator

  g - m ÷ gn = g - m/gn    = (ggn)/gn  - m/gn

                                          = (g²n)/gn - m/gm

Since they have the same denominator, we can carry out the subtraction on the numerator and then put them under one denominator.

                                      (g²n)/gn - m/gm  = (g²n - m)/(gm)


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Answer:

(a) 11.66 square meters per liter

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(b) 475ft^2/gal = 475ft^2/gal × (1m/3.2808ft)^2 × 264.17gal/1m^3 = 11657.8/m

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A force of 20 N is executed to raise a rock weighing 30 N. What is the actual mechanical advantage?
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Answer:

L = 15 cm

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L = 0.151027... m

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A spherical helium filled balloon (B) with a hanging passenger cage being held by a single vertical cable (C) attached to Earth
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Answer:

The tension is  T  = 4326.7 \  N

Explanation:

From the question we are told that

   The  total mass is  m  =  200 \  kg

    The  radius is r = 5 \  m

     The  density of air is  \rho_a  =  1.225 \ kg/m^3

Generally the upward  force acting on the balloon is mathematically represented as

        F_N  =   T  + mg

=>     (\rho_a  *  V  *  g ) =   T  + mg

=>   T  =  (\rho_a  * V  *  g   )  - mg

Here V is the volume  of the spherical helium filled balloon which is mathematically represented as

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So

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