Answer:
A frictional force acts on it
The wavelength of a wave (λ) is given by λ

where c is the wave speed and f is the frequency
Electromagnetic and Gravitational forces are most alike because their range is not limited.
Answer:14 s
Explanation:
Given
Velocity of ant is 0.1 m/s in a direction 
if it has traveled 1 m perpendicular to the edge of the sidewalk
i.e. from diagram





Explanation:
Ubuntu is somewhat a South African concept that involves charity, sympathy, and mainly underlines the concept of universal brotherhood. Hence this concept can help fight social challenges such as racism, crime, violence and many more. It can contribute to maintaining peace and harmony in the country at large