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GarryVolchara [31]
2 years ago
7

As the train in the image moves to the right which person hears the train horn at a lower pitch?

Physics
2 answers:
Svetach [21]2 years ago
5 0
B. C would be your answer
Margaret [11]2 years ago
5 0
Letter B. (the answer would be c)
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Average human body temperature is 98.6°F. What is the equivalent in degrees Celsius?
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37° Celsius is equal to 98.6° Fahrenheit

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2 years ago
There is a puncture in the inner tor of your bicycle. Give a method to detect the position of the puncture
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Explanation:

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3 years ago
In a pendulum system, does the kinetic exceed the potenial energy? Explain.
STALIN [3.7K]
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3 years ago
A wheel rotating about a fixed axis has a constant angular acceleration of 4.0 rad/s2. In a 4.0-s interval the wheel turns throu
anastassius [24]

Answer:

a. 3 s.

Explanation:

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\theta = \omega_1 t \ + \ \frac{1}{2} \alpha t^2\\\\80 = 4\omega_1 + \frac{1}{2}*4*4^2\\\\80 = 4\omega_1 + 32\\\\ 4\omega_1 = 48\\\\ \omega_1 = \frac{48}{4}\\\\ \omega_1 = 12 \ rad/s

Given initial angular velocity, ω₀ = 0

Apply the kinematic equation below;

\omega_1 = \omega_o + \alpha t_1\\\\12 = 0 + 4t\\\\4t = 12\\\\t = \frac{12}{4}\\\\t = 3 \ s

Therefore, the wheel had been in motion for 3 seconds.

a. 3 s.

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2 years ago
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