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ankoles [38]
3 years ago
8

Where does the energy in an unburned match come from?

Physics
1 answer:
choli [55]3 years ago
5 0

A matchstick has a lot of chemical energy stored in it. When the match is struck, it burns and the chemical energy in it produces heat energy and light energy.

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Is it possible to calculate the displacement based on an elapsed time from a position time graph?
Nataly [62]
No I don’t think so. But it worth a try tho. Try it out.
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3 years ago
A balloon filled with helium gas at 20°C occupies 4.91 L at 1.00 atm. The balloon is immersed in liquid nitrogen at -196°C, whil
mrs_skeptik [129]

Answer:

0.25 L

Explanation:

P_1 = Initial pressure = 1 atm

T_1 = Initial Temperature = 20 °C

V_1 = Initial volume = 4.91 L

P_2 = Final pressure = 5.2 atm

T_2 = Final Temperature = -196 °C

V_2= Final volume

From ideal gas law we have

\dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}\\\Rightarrow V_2=\dfrac{P_1V_1T_2}{T_1P_2}\\\Rightarrow P_2=\dfrac{1\times 4.91(273.15-196)}{(20+273.15)\times 5.2}\\\Rightarrow V_2=0.24849\ L\approx 0.25\ L

The pressure experienced by the balloon is 0.25 L

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3 years ago
1. Approximately how many people watch the March Madness tournament?
Stolb23 [73]
40 million
1. Approximately how many people watch the March Madness tournament? There are more than 140 million that watch March Madness.
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How is the acceleration of an object in newtons second law related to its mass and the net force on it?
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B) Acceleration is directly proportional to the mass of the object
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1. Select the most likely consequence of making credit card payments late.
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