Saint Augustine\'s University School of Sciences ,Mathematics and Public Health

Question

Saint Augustine's University School of Sciences ,Mathematics and Public Health Department of Mathematics EXAM 3 243 Bania Taue PLE CHOICE. Choose the one alternative that best completes the state 1) Sound vibrations with frequencies greater than 20,000 Hz are called A) infrasonics. B) ultrasonics. C) supersonics. D) megasonics. E) infrared. ) Angular momentum cannot be conserved if A) the moment of inertia changes. B) there is a net force on the system. C) the net torque is not zero. D) the angular velocity changes. E) the angular acceleration changes. The velocity of a mass attached to a spring is given by v- (1.5 rad/s. What is the corresponding expression for x? A) x =-(0.50 cm) sin@t + /2) B) x =-0.50 cm) cos@t + /2) C) x =-(4.50 cm) sin@t + /2) D) x = (4.50 cm) cos(wt + /2)

Explanation / Answer

1. B Ultrasonics

2. The net torque of the system is zero.

3. Option E is missing.

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.