The speed of sound in aluminum is 5200 m/s. Can you hear a sound with a wavelength of 0.20 m traveling in aluminum?
Explain. (simple short explanation pls)

Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive

Which describes an object in projectile motion? check all that apply. a.gravity acts to pull the object downb. the object moves in a straight path. c.the forward velocity of the object is 0 m/s. d.the object’s inertia carries it forward. e.the path of the object is curved.

In addition to gravity, what is the other predominant force that affects the motion of a pendulum?