Answer:
8
Explanation:
Applying,
v = λf................ Equation 1
Where v = velocity/ speed of the wave, λ = wave length of the wave, f = number of waves the person surf in one seconds.
make f the subject of the equation
f = v/λ............ Equation 2
From the question,
Given: v = 1.6 m/s, λ = 24 m
Substitute these values into equation 2
f = 1.6/24
f = 0.0667 wave/seconds.
If,
in one seconds, the person surf a total wave crest of 0.0667
Therefore,
in one hours, he will surf a total wave crest of (0.0667×60×60) = 240 waves crest
He rides for every 30th wave crest,
Hence,
number of wave crest the person surf in one hour = 240/30 = 8
Approximately 10kg
Given that gravity on the Moon has approximately 1/6th of the strength of gravity on Earth, a man who weighs 60kg on Earth would weigh approximately 10kg on the Moon.
Explanation:
It is given that,
Momentum of an object, p = 23.3 kg-m/s
Kinetic energy, E = 262 J
(a) Momentum is given by, p = mv
23.3 = mv...........(1)
Kinetic energy is given by, 
m = mass of the object
v = speed of the object
v = 22.48 m/s
(2) Momentum, p = mv
m = 1.03 Kg
Hence, this is the required solution.
Answer:
11
Explanation:
There are 2.2lbs in a kilo
times the KG by 2.2 and u get the amount in lbs (pounds)
The number of back-and-forth vibrations in a unit of time is an object's frequency. A complete back-and-forth vibration is one cycle. 1 Hz is one vibration or wave cycle per second!
