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Oksana_A [137]
3 years ago
12

You are camping and it is time to build a campfire. You gather logs and stack them loosely, and then you add small twigs and lea

ves to make the fire easy to light. As you sit by the fire, the logs burn bright in the darkness, and you feel the heat coming toward you.
Physics
1 answer:
koban [17]3 years ago
6 0

Answer:

Its because hot transfers to cool and your body will always be colder than the fire so the hot air particles from the fire even out with the cool particles of your body

Explanation:

...

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What is the average speed of a cheetah that runs 88m in 5 seconds?
pishuonlain [190]

17.6 m/s


is the answer



v=displacent/time



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4 years ago
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zvonat [6]
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4 years ago
A proton is released from rest at the positive plate of a parallelplatecapacitor. It crosses the capacitor and reaches the negat
Triss [41]

Answer:

2.1406 ×10^6 m/sec

Explanation:

we know that energy is always conserved

so from the law of energy conservation

qV=\frac{1}{2}mv^2

here V is the potential difference  

we know that mass of proton = 1.67×10^{-27} kg

we have given speed =50000m/sec

so potential difference V=\frac{\frac{1}{2}\times 1.67\times 10^{-27}50000^2}{1.6\times 10^{-19}}=13.045

now mass of electron =9.11×10^{-31}

so for electron

\frac{1}{2}\times 9.11\times 10^{-31}v^2=1.6\times 10^{-19}\times 13.045=2.1406\times 10^6 m/sec

so the velocity of electron will be 2.1406×10^6 m/sec

4 0
3 years ago
How is using a digital signal like turning on and off a regular light<br> switch?
Orlov [11]

Answer:

they both use 1 and 0

Explanation:

Flipping a switch shows I for light on and 0 for light off

8 0
3 years ago
A load of 36 N attached to a spring hanging
Annette [7]

Answer: 115.38N

Explanation:

Firstly, let's determine the constant.

Hooke's law was discovered by Robert Hooke in 1660.

Using hooke's law which states that provided the elastic limit of an elastic material is not exceeded, the force is equal to the extension applied provided all factors are kept constant.

Hooke's Law is a principle of physics that states that the force which is needed to extend or compress a spring by some distance is proportional to that distance

Therefore,

Force=kx

K= F/x

Where Force= 75m

x= 0.065m

K= 75/0.065m

K= 1153. 846N

We can use the constant to find the force when the distance that is stretched(x) is known.

Here

Force=kx

F= 1153.846 × 0.10

F= 115.38N

The force required to stretch it by this amount is 115.38N.

3 0
3 years ago
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