Mixtures occur when two or more materials are combined and each material keeps its own properties. All of the following are mixt
2 answers:
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Answer:
frequency = 0.5 Hz and speed = 2 m/s
Explanation:
Given that,
The period of a wave, T = 2 s
Wavelength,
If f be the frequency. So,
f = 1/T
Speed of a wave is given by :
So, the frequency of the wave is 0.5 Hz and speed is 2 m/s.
Since static friction is the minimum force required to just start the motion of a stationary object.
Here if we need to start an object from rest then we required F = 700 N
So for the first part of the above problem Force will be F = 700 N
Now if the box is already moving then we will have to use kinetic friction force between box and floor
now we can write the equation of net force as
here
now we will have