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Citrus2011 [14]
3 years ago
13

Can a runner on a track be accelerating even if she is running at a constant speed why or why not

Physics
1 answer:
Lynna [10]3 years ago
6 0
If the runner is running in a circular track then yes when something or someone is moving in a circular motion at a constant speed they are indeed accelerating. They’re accelerating because the direction of the velocity vector is changing
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A 15.7-g aluminum block is warmed to 53.2 °c and plunged into an insulated beaker containing 32.5 g of water initially at 24.5 °
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The equilibrium temperature of aluminium and water is 33.2°C

We know that specific heat of aluminium is 0.9 J/gm-K, and that of water is 1 J/gm-K

Now we can calculate the equilibrium temperature

(mc∆T)_aluminium=(mc∆T)_water

15.7*0.9*(53.2-T)=32.5*1*(T-24.5)

T=33.2°C

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3 years ago
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People are resistant to change, People have political freedom, Farmers institute new farming techniques and there is little need for medical facilities.
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Do you believe in God (why or why not)?
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Which of the following are steps for balancing chemical equations?
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Answer:

C. Recheck the numbers of each atom on each side of the equation

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