Acyclist moves at 10 m / s for 5 minutes and at 18 m / s for 6 minutes in the same direction and direction. get the average speed of this movement. a.14.4 m/s b.2.5 m/s c.25.0 m/s d.31.6 m/s e. none of the above

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

Which atomic model was proposed as a result of j. j. thomson’s work?

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?