Answer:
24 m/s
Explanation:
V=Vi+at
given initial velocity is 0, acceleration is 2 and time is 12 sec
find final velocity by plugging in the variables into the equation above.
V=0+2x12=24m/s
Elements in Group 13, Period 3 are
Boron
Aluminium
Gallium
Indium
Thallium
Sodium
Magnesium
Silicon
Phosphorus
Sulfur
Chlorine
Argon
Answer:
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- <u><em>Using thermal imaging to detect heat energy loss through the roof and windows.</em></u>
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Explanation:
<em>Heat energy</em> is transmitted by conduction, convection, and <em>radiation</em>.
All warm objects emit heat energy in the form of infrared <em>radiation</em>, which is a kind of invisible light (light with a lower frequency and longer wavelentgh than the visible light).
The amount of heat energy emitted by an object is proportional to its temperature: the higher the temperature of the object body, the greater the amount of radiant energy emitted.
A<em> house </em>can loss heat energy by radiation through the walls, <em>roof and windows.</em>
<em>A thermographic camera or thermal imaging camera </em>will detect the infrared radiation emitted through walls, roof and windows, showing a red image in those areas.
I found the image attached in internet, showing the red areas around the roof and windows of a house, mainly, using a thermal imaging camera.
Answer:
t=1s
Explanation:
Using the formula
s=ut+1/2at^2
4.9 = (0)(t) + 1/2(9.8)(t^2)
4.9 = 4.9(t^2)
t^2 = 1
t = 1