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2 years ago

13

I have a doubt on heat and temperature. I need help with this science question and here the question: The water in a lake just r

eached freezing point temperature. Why can’t you go ice skating on it yet?

1 answer:

Volgvan2 years ago

5 0

Answer:

you can't go ice skating on it because if it just reached the temp then you need to wait for about 2 hours

Explanation:

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3 years ago

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3 years ago

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2 years ago

A 5 kg block is being pushed horizontally across a level surface at a constant velocity. What is the magnitude of the Normal for

luda_lava [24]

Answer:

50 N.

Explanation:

On top of a horizontal surface, the normal force acting on an object is equivalent to the force of gravity acting on the object. That is:

$\displaystyle \begin{aligned} F_N = F_g & = ma \\ & = mg\end{aligned}$

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$\displaystyle F_N = F_g = (5\text{ kg})(10 \text{ N/kg}) = 50 \text{ N}$

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2 years ago

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3 years ago

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