Light. The black hole is a vacuum, and not even light can escape it's suction
The effect of this problem is that negative particles and positive particles contract to each other caused by electrical force.
Answer:
A
Explanation:
Pressure, temperature are measurable properties and they are also known as physical properties.
Answer: 1000 Hz
Explanation:
You can calculate frequency by dividing velocity by wavelength
Frequency = velocity/wavelength
Find velocity first.
900 m/3 s = 300 m/s
Plug values in to find frequency.
F = (300 m/s)/0.3 m
F = 1000 Hz
