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zmey [24]
3 years ago
6

When you hold a cold glass of water in your warm hand, which way does the heat flow ?

Physics
1 answer:
Tanya [424]3 years ago
6 0

Heat flows naturally from a warmer object (higher energy) to a cooler one (lower energy).

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The same force that causes a pop fly to smack into your baseball mitt keeps the Moon in its orbit around Earth. Agree Disagree E
Mademuasel [1]

Answer:

I agreed because, gravity keeps the moon in orbit and causes a pop fly to smack into your baseball mitt.

Explanation:

yes.

7 0
2 years ago
Question 17
9966 [12]
The first one 76 i think that is it
3 0
2 years ago
A spotlight on the ground shines on a wall 12 m away. If a man 2 m tall walks from the spotlight toward the building at a speed
mafiozo [28]

Answer:

0.6375 m/s

Explanation:

Let x be the distance of the man from the building

from the figure attached

initially the value of x=12

Given:

\frac{dx}{dt}=-1.7m/s

where the negative sign depicts that the distance of the man from the building is decreasing.

Now, Let The length of the shadow be = y

we have to calculate \frac{dy}{dt} when x=4

from the similar triangles

we have,

\frac{2}{12-x}=\frac{y}{12}    

or

y=\frac{24}{12-x}

Differentiating with respect to time 't' we get

\frac{dy}{dt}=-\frac{24}{12-x}^2\frac{-dx}{dt}

or

\frac{dy}{dt}=\frac{24}{12-x}^2\frac{dx}{dt}

Now for x = 4, and \frac{dx}{dt}=-1.7m/s  we have,

\frac{dy}{dt}=\frac{24}{12-4}^2\times (-1.7)

or

\frac{dy}{dt}=-0.6375m/s

<u>here, the negative sign depicts the decrease in length and in the question it is asked the decreasing rate  thus, the answer is </u><u>0.6375m/s</u>

4 0
3 years ago
Expresa en terminos de la unidad fundamental
Svet_ta [14]

Answer:

imma be honest I dint really know

5 0
3 years ago
Electromagnetic Induction states that moving a magnet through a loop of wire creates which of the following?
alukav5142 [94]
I am pretty sure that electromagnetic Induction states that moving a magnet through a loop of wire creates B. magnetic field. I consider this option to be correct because according to lenz's law <span>conductor  moves through loop and to be more exact in this case through a magnetic field. I hope it help!</span>
5 0
3 years ago
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