A pendulum of unknown mass is attached to the ceiling and nearly touches the floor as it completes 6 full cycles in 45 s. At its lowest point, the pendulum moves at a speed of 4.15 m/s. part a. What is the height of the ceiling?
part b. What is the maximum height of the pendulum?
part c. If the pendulum were moved to the moon, with a gravitational acceleration of 1.62 m/s2, what would be the resulting frequency?
part d. If the pendulum, back on Earth, were raised to a height of 0.22 m and released, what would be the resulting frequency of the motion?

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these

Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants

Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward