Since the diameter of helium atom is approximately , therefore the diameter of helium atom in nano meter,
Momentum = (mass) x (speed) = (1 kg) x (0.01 m/s) = 0.01 kg-m/s
Answer:
34.5 m
Explanation:
Given data : An elephant produces 10 Hz sound wave. Assuming the speed of sound in air is 345 m/s. To find : What is the wavelength of sound ? Answer : The wavelength of the sound is 34.5 m.
Kinetic energy is proportional to the square of the speed. So when anything or anybody speeds up, its kinetic energy increases.