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Y_Kistochka [10]
3 years ago
10

Which statement would be the best evidence that heat transfer through radiation has occurred and why? A) A pan gets hot on a sto

ve. Radiation requires molecule to molecule contact. B) On a windy day, you feel colder. This is because more heat is removed from your body. C) At several feet from a fire, you still feel the heat. Heat is transferred through the air. D) An oven uses fans to heat up the food inside faster. Radiation is the most efficient form of heat transfer.
Physics
2 answers:
andriy [413]3 years ago
8 0
It is C, did it on a USATestprep
kari74 [83]3 years ago
3 0

At several feet from a fire, you still feel the heat. Heat is transferred through the air. The heat is radiating so you can feel the heat

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Y=k/x, x is halved.<br> what happens to the value of y
IgorLugansk [536]

Answer:

y is doubled

Explanation:

If x is halved, that means the value is doubled. Here is an exmaple:

y=1/2. If the denominater is doubled, y would equal y=1/1. So, the value of y has doubled from 0.5 to 1. Therefore, if the denominator is halved, the solution will be doubled.

8 0
3 years ago
What is the acceleration if we speed up from 10m/s to 30 m/s in 10 seconds
lina2011 [118]
Acceleration= change in speed/ change in time

30-10= 20 (change in speed)
Time= 10 seconds

20/10= 2
Acceleration= 2 m/s^2

Hope this helps! :)
3 0
3 years ago
A wave traveling in water has a frequency of 250 Hz and a wavelength of 6.0 N. What is the speed of the wave?
enyata [817]
The speed of a wave is determined by the product of the frequency and the wavelength; we already have the wavelength and the frequency, so all we need to do is multiply them by each other and use our proper unit of measure.

Velocity (speed) = Frequency x Wavelength
V = 250 x 6
V = 1500

Your answer is 1500 m/s.

I hope this helps!
5 0
3 years ago
Understand that, for many purposes, a system can be treated as a point-like particle with its mass concentrated at the center of
Nataliya [291]
Treating the system as a point-like particle allows us to assign a quantity to the object and monitor this quantity throughout any changes. The complexity of the system which includes geometry, appearance, and extensions can complicate the studying of the system.
4 0
3 years ago
Can a plane mirror produce a real image? Explain.
Komok [63]
I don't think so, because in order to produce an image, you need a surface behind the mirror. The light will hit the mirror, then it will bounce it back in your eyes and you see the image.
4 0
3 years ago
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