A 0.40 kg toy car moves at constant acceleration of 2.3 m/s2. determine the net applied force that is responsible for that accel
2 answers:
Answer:
F = 0.92 N
Explanation:
It is given that,
Mass of the toy car, m = 0.4 kg
Acceleration of the car,
Let F is the net force applied to the to the toy car. It is equal to the product of mass and acceleration. Its formula is given by :
F = 0.92 N
So, the net applied force that is responsible for that acceleration is 0.92 N. Hence, this is the required solution.
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Answer:
for
Where z=0 m is the position of Miss Piggy and z=4 m is the position of the speaker.
Explanation:
Assuming that Miss Piggy emits a sound wave that is in phase with the speaker, and that z=0 is the position of Miss Piggy and z=4 is the position of the speaker, we would have a superposition of two traveling sound waves. Furthermore let's assume that both waves have the same amplitude. The total resulting wave will be given by:
where
is the angular frequency of the traveling wave and
is the wave number defined as
.
is the wavelength of both traveling waves (they have the same wavelength because they have the same frequency).
where v is the speed of sound.
By using the trigonometric identity we can rewrite
as
.
In order for the resulting wave to have maximum destructive interference, that is to be zero for any time t, we need to have