A string of length L is tied at both ends, and a harmonic mode is created with a frequency of fA. The next successive harmonic is at a frequency of fB. Note that the fundamental frequency is not necessarily fA. A) What is the speed of transverse waves on the string? Your answer should contain fA, fB and L. B) What is the number of antinodes of fA? In other words, what is n? Your answer should contain fA and fB.

One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole in the shade and making a small patch of light on the far wall. you see that the patch of light seems to be a circular diffraction pattern. it appears that the central maximum is about 1 cm across and you estimate that the distance from the window shade to the wall is about 3 m. what is (a) the average wavelength of sunlight? (b) the diameter of the pinhole?

Identify the forces that contribute to the centripetal force on the object in each of the following examples: a. a bicyclist moving around a flat, circular track b. a bicycle moving around a flat, circular track c. a racecar turning a corner on a steeply banked curve

The image shows the positions of a car on a roller coaster track. arrange the cars in order based on their gravitational potential energy. begin with the lowest potential energy and end with the highest.