Harmonics of a piano

(See attached file for full problem description with proper symbols and diagram) --- Harmonics of a Piano Wire A piano tuner stretches a steel piano wire with a tension of 800 N. The steel wire has a length of 0.400 m and a mass of 3.00 g. Part A: What is the frequency f1 of the string's fundamental mode of vibratio ...continues

Ant on a Tightrope

(See attached file for full problem description) --- Ant on A Tight Rope A large ant is standing on the middle of a circus tightrope that is stretched with tension Ts The rope has mass per unit length . Wanting to shake the ant off the rope, a tightrope walker moves her foot up and down near the end of the tightro ...continues

2 Short Physics Problems

Please review the attached two problems, write how to solve every step so I can learn how to do these. Please only use algebra based formulas. --- The inner and outer surfaces of a cell membrane carry a negative and positive charge, respectively. Because of these charges, a potential difference of about 0.065 V exists acro ...continues

Physical Units - What is Volts/Meter?

Please see the attached units question. I need to know this to be the result of one of my calculations correctly. Please choose any correct answers, if any, and then use dimensional analysis to show it equality to V/M. --- Are any of the following equivalent to Volts/Meter: ? C N N/C C/M^2 J V E J/m^3 N*M^2/C W ...continues

Nodes of a Standing Wave

(See attached file for full problem description) --- Nodes of a Standing Wave (Cosine) Learning Goal: To understand the concept of nodes of a standing wave. The nodes of a standing wave are points where the displacement of the wave is zero at all times. Nodes are important for matching boundary conditions, for example that ...continues

Nodes and antinodes of standing Waves

Please help with the following problem, there are 2 more parts but I cannot send them until I have to answer to part A, thanks Standing Waves in Action Consider a string of length 1.0 meter, fixed at both ends, with mass 100 grams and tension 1.0 newtons. Give the number of nodes and antinodes set up on the string if ...continues

Meeting of Two Identical Pulses moving along a String

(See attached file for full problem description with diagrams) --- Two identical pulses are moving in opposite directions along a stretched string that has one fixed end and the other movable, as shown in the figure. Above each pulse a green arrow indicates the direction of motion of the pulse. Part A The two pulse ...continues

Two Velocities in a Traveling Wave

(See attached file for full problem description with proper equations) --- Two Velocities in a Traveling Wave Wave motion is characterized by two velocities: the velocity with which the wave moves in the medium (e.g., air or a string) and the velocity of the medium (the air or the string itself). Consider a transverse wave ...continues

Wave Propagation on a string made of segments of different density

(See attached file for full problem description with proper symbols) --- Wave Propagation in a String of Varying Density Consider a string of total length , made up of three segments of equal length. The mass per unit length of the first segment is , that of the second is , and that of the third . The third segment is ...continues

Why the Highest Piano Notes Have Short Strings

(See attached file for full problem description with proper symbols) --- Why the Highest Piano Notes Have Short Strings The steel used for piano wire has a breaking (tensile) strength of about and a density of . Part A What is the speed of a wave traveling down such a wire if the wire is stretched to its breaking p ...continues