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Questions and Answers
What is the acceleration of the particle at time $t = 2\pi/\omega$?
What is the acceleration of the particle at time $t = 2\pi/\omega$?
- $2-\omega^2a$
- $2\omega^2a$
- $-2-\omega^2a$
- $-2\omega^2a$ (correct)
What is the depth of the well if the splash is heard after 3 seconds and the speed of sound is 340 m/s?
What is the depth of the well if the splash is heard after 3 seconds and the speed of sound is 340 m/s?
- 340 m
- 510 m (correct)
- 1020 m
- 680 m
A ball is thrown horizontally from a height of 20 meters with an initial velocity of 10 m/s. How far from the base of the building does the ball strike the ground?
A ball is thrown horizontally from a height of 20 meters with an initial velocity of 10 m/s. How far from the base of the building does the ball strike the ground?
- 10 m
- 20 m
- 40 m (correct)
- 80 m
What is the value of the constant $\omega$ in the equation of motion $x(t) = a\sin(\omega t)$?
What is the value of the constant $\omega$ in the equation of motion $x(t) = a\sin(\omega t)$?
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What is the value of the constant $a$ in the equation of motion $x(t) = a\sin(\omega t)$?
What is the value of the constant $a$ in the equation of motion $x(t) = a\sin(\omega t)$?
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