The answer is b
Explanation:
Answer:
2H2 + O2 -----> 2H2O
Not sure about the second question though.
The the forth layer known as the thermosphere can reach as high as 2000 degrees Celsius.
We will assume that the wave is moving in free space, thus, the velocity of the wave would be equal to the speed of light = 3 * 10^8 meters/sec
The velocity of the wave can be calculated using the following rule:
velocity = frequency * wavelength where:
velocity = 3 * 10^8 m/sec
frequency = 2500 Hz
wavelength is the unknown that we want to calculate.
Substitute with the givens in the above equation to get the wavelength as follows:
3 * 10^8 = 2500*wavelength
wavelength = 120 * 10^3 meters
Answer:Kinetic floor tiles capture energy generated when people walk on them.
Explanation:
