A30-cm long string, with one end clamped and the other free to move transversely, is vibrating in its second harmonic. the wavelength of the constituent traveling waves is:

Which statement about covalent bonds is true

The space between two 15-in.-long concentric cylinders is filled with glycerin (viscosity = 8.5 × 10-3 lb·s/ft2). the inner cylinder has a radius of 1 in. and the gap width between cylinders is 0.1 in. determine (a) the torque and (b) the power required to rotate the inner cylinder at 180 rev/min. the outer cylinder is fixed. assume the velocity distribution in the gap to be linear.

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?