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GalinKa [24]
3 years ago
14

Does hot water always freeze faster than cold water

Physics
2 answers:
svp [43]3 years ago
8 0
Yes because there is more temperature to cover in terms of hot water turning into cold and then solid water, and therefore hot water cools down faster, whereas cold water will take more time to become solid.
Mamont248 [21]3 years ago
5 0
Yes because there is more energy in hot water

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6.6 kg block initially at rest is pulled to theright along a horizontal, frictionless surfaceby a constant, horizontal force of
neonofarm [45]

Answer:

v = 3.04 m/s

Explanation:

given,

mass of the block, M = 6.6 Kg

horizontal force, F = 12.2 N

distance, L = 2.5 m

initial speed  = 0 m/s

speed of the block,v = ?

we now

Work done is equal to change in Kinetic energy.

Work done = Force x displacement

W = Δ K E

Δ K E = Force x displacement

\dfrac{1}{2}mv^2 - \dfrac{1}{2}mu^2= F .s

\dfrac{1}{2}\times 6.6 \times v^2 - 0= 12.2\times 2.5

 3.3 v² = 30.5

     v² = 9.242

      v = 3.04 m/s

speed of the block is equal to 3.04 m/s

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3 years ago
3. Which of the following magnetic scenarios will repel each
Nastasia [14]

Answer:

option C (1 and 4)

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7 0
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3 years ago
15 POINTS PLEASE HELP! NO GUESSING
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He answer is A. <span>encourage agricultural usage in the watershed

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