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marshall27 [118]
3 years ago
8

what happens when tectonic plates move away from each other? A.molten matter cools and sinks towards the core B. lava travels wa

y from the crust and forms the mantle C. molten matter seeps through crust and forms new land D. lava seeps into ground and cracks the ground
Physics
1 answer:
Allisa [31]3 years ago
3 0

Answer:

i would say C

Explanation:

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if a big stone and a small stone is dropped simultaneously from the certain height. they fall together why??​
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How much power does it take to do 500 J of work in 10 seconds?
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2)Chewed food is pushed into the pharynx 
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3 years ago
A spherical helium filled balloon (B) with a hanging passenger cage being held by a single vertical cable (C) attached to Earth
Gre4nikov [31]

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

      V  =  \frac{4}{3}  * \pi r^3

=>   V  =  \frac{4}{3}  * 3.142 *(5)^3

=>   V  = 523.67\  m^3

So

    T  = (1.225 *  523.67*  9.8 ) -  200 *  9.8

   T  = 4326.7 \  N

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3 years ago
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