A sonar signal leaves a submarine, travels through the water to another submarine and reflects back to
the original submarine in 4.00 s. If the frequency of
the signal is 512 cycles per second and the
wavelength of the signal is 2.93 m. How far away is
the second submarine?

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

Use the drop-down menus to answer each question. which line represents the movement of a cart with a constant acceleration? a which line represents the movement of a cart with a constant velocity? c which lines represents a cart with no velocity or acceleration? b

An electromagnetic wave with frequency 65.0 hz travels in aninsulating magnetic material that has dielectric constant 3.64 andrelative permeability 5.18 at this frequency. the electric fieldhas amplitude 7.20 \times 10^{ - 3} {\rm v}/{\rm m}. a. what is the speed of propagation of the wave? b.what is the wavelength of the wave? c.what is the amplitude of the magnetic field? d.what is the intensity of the wave?