I need this ASAP Name the three types of perodic maintenance with examples each.
1 answer:
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<h2>Answer: 1.25 km</h2>
Explanation:
The velocity of a wave is given by:
(1)
Where:
is the wavelength of the wave
is the frequency of the wave. Its unit is Hertz (
)
So, we have to find from equation (1):
(2)
Finally we obtain the wavelength of the earthquake wave:
Answer:
Force that acted on the body was F = 13 N
Explanation:
If once accelerated, the body covers 60 meters in 6 seconds, then its velocity is 60/6 m/s = 10 m/s
When the force was acting (for 10 seconds) the object accelerated from rest (initial velocity vi = 0) to 10 m/s (its final velocity). therefore we can use the kinematic equation for the velocity in an accelerated motion given by:
which in our case becomes;
and we can solve for the acceleration as:
a = 10/10 m/s^2 = 1 m/s^2
Therefore the force acting on the body, based on Newton's 2nd Law expression: F = m * a is:
F = 13 kg * 1 m/s^2 = 13 N