Niels Bohr discovered of the nucleus and developed an atomic model
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Answer:
D and compound
Explanation:
because N2 is = to a compound
Answer: Wavespeed (V) = Frequency F x wavelength λ (V = F λ)
Explanation:
The wavespeed is the distance covered by a wave in one second. It is measured in metre per second, and represented by the symbol V. It is directly proportional to the wavelength and frequency
i.e Velocity (V) = Frequency F x wavelength λ
V = F λ
For instance:
Assume wavelength (λ)= 20 m
Frequency = 10 Hz.
To get the wavespeed, use the formula
V = F λ
V = 20 metres x 10 hertz
V = 200 metres per second
Thus, the wave travels at a speed of 200 metres per second
Answer:
C. It decreases
Explanation:
The pressure law states that for a constant volume of gas in a sealed container the temperature of the gas is directly proportional to its pressure. This can be easily understood by visualizing the particles of gas in the container moving with a greater energy when the temperature is increased.
A common example is cooking gas when refilled, there is a perceptible change in the temperature of the cylinder.
Answer:
2 True
Explanation: The arrows on a motion map should point in the direction of motion.
