mimithurmond03
14.05.2021 •
Physics
A trumpet creates a sound wave that has a wave speed of 339 m/s and a wavelength of 1.53 m. What is the frequency of the sound wave?
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Ответ:
f = 222 Hz
Explanation:
339 m/s / 1.53 m = 222 Hz
Ответ:
Explanation:
The complete question is here.
A spring is compressed between two objects with unequal masses, m and M, held together. The objects are initially at rest on a horizontal friction less surface. When released, which of the following is true?
a) Kinetic energy is same as before being released
b) The total final kinetic energy is zero.
c) The two objects have equal kinetic energy.
d) The speed of one object is equal to the speed of other.
e) The total final momentum of two objects is zero.
So option e) the total final momentum of two objects is zero.