The speed of sound in air is about 340m/s. what is the wavelength of sound waves produced by a guitar string vibrating at 490hz?

Shelly experiences a backward jolt when the driver starts the school bus. which of the following explains this phenomenon? a. the inertia of shelly b. the inertia of the bus c. the normal force of the seats on shelly d. the net force acting on shelly in a backward direction e. a zero net force acting on shelly

The 5-kg cylinder is initially at rest when it is placed in contact with the wall b and the rotor at a. if the rotor always maintains a constant clockwise angular velocity v = 6 rad> s, determine the initial angular acceleration of the cylinder. the coefficient of kinetic friction at the contacting surfaces b and c is mk = 0.2.

Unpolarized light is incident upon two polarization filters that do not have their transmission axes aligned. if 32 % of the light passes through this combination of filters, what is the angle between the transmission axes of the filters?