Answer:
7.9Hz
Explanation:
Step one:
given data
We are told that the fourth harmonic is at 31.5 Hz
We know that harmonics are a multiple of the fundamental frequency, such that if the fundamental frequency is 25Hz, then the second harmonic is
2nd= 2*25= 50Hz
3rd= 3*25= 75Hz........and so on
Step two:
In this problem, we are told that the 4th harmonic is 31.5Hz, that is
4th= 4*f= 31.5
Divide both sides by 4 to get f
f= 31.5/4
f= 7.9 Hz
Hence the first/fundamental frequency is 7.9Hz
Answer:
v=2.9578 m/s
Explanation:
t= 1407.6 hr
t = 3600 * 1407.6 = 5067360 s
w = 2π/T
=2π/5067360
w = 1.24 x 10^-6 rad/s
v = r*w
v = 2.9758 m/s
Newton's laws of motion relate an object's motion to the forces acting on it. ... In the second law, the force on an object is equal to its mass times its acceleration. In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction.
Answer:
Yes
Explanation:
Outer space is an excellent environment to demonstrate the law of Action-Reaction, since there is no friction with boundaries, and also one is away from the Earth gravitational pull, then such force can be neglected.