What is speed of the student approaching the wall

Reference no: EM138631

Q1. A student stands several meters in front of a smooth reflecting wall, holding a board on which a wire is fixed at each end. The wire, vibrating in its third harmonic, is 75 cm long, has a mass of 2.29g, and is under a tension of 500N. A second student, moving toward the wall, hears 8.8 beats per second. What is speed of the student approaching the wall?

Q2. Car A uses tires for which the coefficient of static friction is 1.1 on a particular unbanked curve. The maximum speed at which the car can negotiate this curve is 25 m/s. Car B uses tires for which the coefficient of static friction is 0.65 on the similar curve. What is the maximum speed at which car B can negotiate the curve?

Reference no: EM138631

Questions Cloud

Customer extra he obtains with each provider : Explain how much he finishes up paying each provider every month. Explain how much customer extra he obtains with each provider.

Find the weight w2 and the angle alpha : A 9.05 kg projectile is fired vertically upward. Air drag decreases the mechanical energy of the projectile-Earth system by 77.5 kJ throughout the projectile's ascent. How much higher would the projectile have gone were air drag negligible.

Analyse the angular separation of the second order : The lines in a grating are uniformly spaced at 1520nm. Analyse the angular separation of the second order bright fringes between light of wavelength 603nm and 615.4 nm. Reply in units of mrad.

The electron is released from rest at point b : Points A and B have electric potentials of 243 V and 129 V, respectively. When an electron released from rest at point A arrives at point C its kinetic energy is KA. When the electron is released from rest at point B, however, its kinetic energy when..

What is speed of the student approaching the wall : Car A uses tires for which the coefficient of static friction is 1.1 on a particular unbanked curve. The maximum speed at which the car can negotiate this curve is 25 m/s. Car B uses tires for which the coefficient of static friction is 0.65 on the s..

What force is applied to the driver by his seat : A loudspeaker of mass 15.0 is suspended a distance of h = 2.30 below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.30. What is tension in each cable.

Expansionary monetary strategy to shift : Assume the economy starts out at point A. After that, the public anticipates that the Fed will use expansionary monetary strategy to shift the AD curve from AD1 to AD2.

What is the wavelength of the typical t-wave : A 56.0 resistor is connected in parallel with a 117.0 resistor. This parallel group is connected in series with the 27.0 resistor. The total combination is connected across a 15.0 V battery. What is the current of the 117 resistor? What is the power ..

Profit-maximizing price : What arguments can be made for charging a lower than the profit-maximizing price. What price from the available prices do you recommend.

User Account

All Pages