The ratio of the forces is 9.59×10^-4.
The transverse speed in terms of tension in the string (T) of the wave is,
ω/k=√T/μ
T=ω^2k$2μ
Substituting the values we get,
T=[(50.0rad/s)^2/(0.800m−1)^2]×(12.0×10−3kg/m)
≈46.9N
The ratio of the transverse force and the tension is,
F/T=0.045N/46.9N
≈9.59×10^-4
Hence, the ratio of the forces is 9.59×10^-4.
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Light is refracted when it crosses the interface from air into glass in which it moves more slowly. Since the light speed changes at the interface, the wavelength of the light must change, also. The wavelength decreases as the light enters the medium and the light wave changes direction.
Answer:
b) Springs oscillate with the same frequency,
Explanation:
expression for frequency of vibration of mass hanging from a spring is given as follows
f =
k is force constant of spring and m is mass vibrating .
In the present case, if mass stretches the spring by x and remains balanced
mg = k x
g and x are same for both cases
will also be same for both cases .
Hence frequency of vibration will also be same for both the balls .
The acceleration of gravity is 9.8 m/s². This simply means that when anything falls, its downward speed keeps increasing, and it falls 9.8 m/s faster every second than it fell 1 second earlier.
After 3 seconds of falling, the object is falling at (3 x 9.8 m/s) = 29.4 m/s faster than at the beginning of the 3 seconds. If it had no vertical speed at the beginning of the 3 seconds, then THAT's its speed after 3 seconds . . . . . <em>29.4 m/s</em> downward.
As far as being thrown horizontally off the cliff . . . that has no effect on it vertical speed. Horizontally, it doesn't matter whether it rolls gently over the edge, or somebody throws it horizontally, or it gets shot horizontally out of a high power rifle. It hits the ground at the same time and with the same speed in every case.